Reactive mixture for coating moulded articles by reaction injection moulding and coated moulded articles

FIELD: chemistry.

SUBSTANCE: invention relates to a reactive mixture for coating moulded articles by reaction injection moulding. The reactive mixture contains at least 60 wt % (meth)acrylates with at least two double bonds, wherein content of at least one (meth)acrylate with three or more double bonds is at least 25 wt % of the weight of the reactive mixture. The reactive mixture contains at least one photoinitiator and at least one thermal initiator. Furthermore, the present invention describes a moulded article with a coating of the reactive mixture and a method for production thereof. The moulded article is obtained by reaction injection moulding and the moulded article contains at least one polymer selected from a group comprising polymethyl methacrylate, polymethacryl methylimide, a copolymer of styrene and acrylonitrile, a copolymer of styrene and maleic acid and copolymers of polymethyl methacrylate and a coating from the reactive mixture.

EFFECT: formation of a fast solidifying coating with scratch resistance and high strength of adhesion with the moulded article.

30 cl, 1 tbl, 19 ex

 

The present invention relates to the reaction mixture for coating molded products using the reaction injection molding. In addition, the present invention describes a molded product is coated.

Thermoplastic plastic molding material, which may be, for example, polymethylmethacrylate (PMMA), used in various fields. This mass is subjected to injection molding or extrusion with the formation of molded parts.

These molded parts are being actively used for the manufacture of parts under heavy load, for example, moving parts (inner and outer equipment hire, mobile covers electronic devices, such as mobile phones, computers, electronic notebooks, MP3 players or TVs), mounted and mounting parts with a matte color (for example, automotive exterior mirrors, facing racks, plugs in place of mounting mirrors or household items with a matte color. Due to the high loads, the surface of molded products used thus demonstrates the propensity for the formation of scratches, which from the point of view of appearance unacceptable. This molded product produced by injection molding, exposed procuration the Y. In addition, for economic reasons, the color of the produced molded products can be changed only to a very limited extent, and this is necessary, for example, to facilitate color matching parts for a specific vehicle.

To improve resistance to scratching, as well as for color matching on the above-described molded product can be applied layers of lacquer. However, the application of the reaction lacquers classical method is relatively time-consuming and therefore expensive. These methods are hardly suitable for the mass production of goods.

For these reasons, already developed ways in which molded products can be relatively inexpensive to apply a scratch-resistant layer by casting under pressure. For example, in the publications of Japanese patent JP 11300776 and JP 2005074896 describes the processes of injection molding, in which obtain a molded product with a scratch-resistant layer.

In the publication JP 11300776 (Dainippon Toryo, 1998) described a two-stage RIM-process (two-stage injection molding). First Dicyclopentadiene method metatheses reaction injection molding obtain a molded product. After curing, the movable part of the apparatus for the reaction injection molding divert ago, so between the molded product and the shape is formed a gap of a given width. In this crack in vtora the procedure, reaction injection molding inject the coating material, consisting of a urethane oligomer with acrylate functional groups, styrene, diacrylate crosslinking agents and, optionally, fillers and pigments (TiO2, talc), and within 2 minutes carry out the curing by radical mechanism at 95°C.

In the publication of Japanese patent JP 2005074896 (Toyota Motor Corp.; Dainippon Toryo Co.) also describes the process of reaction injection molding (RIM). During conventional injection molding from plastic, in particular polycarbonate (PC), is made of a flat molded product. Then the apparatus is opened, forming a small gap, and within a few seconds the injection and curing of the reaction solution of urethane acrylate oligomers with functional groups, acrylate agents, cross-linking, inhibitors and organic peroxide initiator. After a few seconds at 95°C completes the cure, and after 90 with composite product is recovered from the mold. It has good levels of resistance to scratching, the strength of the composite, resistance to temperature changes and alternating exposure to hot water. All items must be present urethane oligomer formed from isophorondiisocyanate or bis(socialecological)methane components.

The above molded product really is possess good characteristics. However, there is a constant desire to improve the stability of the thus obtained molded to scratches. In addition, the manufacturing takes a lot of time, so that the method in General roads. In addition, improvements need weatherproof moulded products. Another problem with the implementation of the method of molding described in Japanese patents JP 11300776 and JP 2005074896 is premature polymerization of the reaction mixture in the device for injection molding, so that this process can hardly reduces the cycle time for mass production.

Thus, taking into account the prior art, the present invention was to represent the reaction mixture for coating molded articles by injection moulding under pressure, which leads to the formation of coatings with high scratch resistance and high adhesion to the molded product.

Another object of the invention was to create a reaction mixture, the complete curing of which is particularly simple and occurs in a short time.

In addition, the present invention was to provide a simple and affordable methods of production of coated molded products. To obtain molded products you need on who is agnosti with a minimum duration of the operating cycle and, in General, with low energy consumption.

Also the present invention was the creation of a molded product with outstanding mechanical properties. In particular, the molded product should have a high scratch resistance and hardness. In addition, the coated molded product should be of high resistance to weather and chemicals.

These and others not mentioned here separately tasks, which, however, clearly follow from the introductory discussion and are a development of the provisions thereof, shall decide through the reaction mixture with all the signs of paragraph 1 of the claims. Suitable varieties of the reaction mixture according to the invention are protected in the dependent clauses with reference to paragraph 1 and resting on him. In respect of the method and molding solutions to the challenges facing invention, offer points 18 and 27.

Accordingly, an object of the present invention is a reaction mixture for coating molded products using the reaction injection molding, comprising at least 40 wt.% (meth)acrylates with at least two double bonds, which differs in that it contains at least one photoinitiator and at least one thermal initiator.

Due to this unexpected way is given to provide coated molded product, having excellent scratch resistance, this product has a very low cost. Surprisingly, the coating shows a very strong grip with molded product. In addition, the coatings obtained using the reaction mixture according to the invention, are highly weatherproof. Moreover, the coated molded products have good mechanical properties, and they can demonstrate a particularly high hardness and a favorable level of toughness. In addition, the reaction mixture according to the invention allows to form a molded product coating, resistant to temperature and chemicals.

In addition, in order to produce desirable properties in accordance with the specific requirements, the reaction mixture may contain additives. This allows you to easily change the color of the molded product.

Moreover, the method according to the invention can be implemented simply and with low costs, and the molded product can be obtained by unexpectedly low duty cycle and low power consumption.

The reaction mixture contains at least 40 wt.%, preferably at least 60 wt.%, and particularly preferably at least 90 wt.% (meth)acrylates with at least two of the double bonds relative to the tion of the total mass of the reaction mixture. Under the concept of "double bond" means in particular a double bond between two carbon atoms, is suitable for radical polymerization. The expression "(meth)acrylate" means acrylate, methacrylate, and mixtures thereof. (Meth)acrylates with at least two double bonds also known as monomers providing cross-stitching. In particular, these include (meth)acrylates with two double bonds, such as (meth)acrylates derived from unsaturated alcohols, such as 2-PROPYNYL(meth)acrylate, allyl(meth)acrylate, vinyl(meth)acrylate, and (meth)acrylates derived diols or alcohols with a large number of carbon atoms, for example, glycolide(meth)acrylates, for example, etilenglikoli(meth)acrylate, dieti-langille(meth)acrylate, triethyleneglycol(meth)acrylate, Tetra -, polietilenglikoli(meth)acrylate, 1,3-butanediol(meth)acrylate, 1,4-butanediol(meth)acrylate, 1,6-hexanediol(meth)acrylate, glycerine(meth)acrylate and diabetesdetailed; (meth)acrylates with three or more double bonds, for example, glycerine(meth)acrylate, trimethylolpropane(meth)acrylate, pentaerythrityl(meth)acrylate and dipentaerythritol(meth)acrylate.

Particularly preferred (meth)acrylates with at least two double bonds are, in particular, 1,6-hexanediamine, trimethylolpropane, p is interfraternal and dipentaerythritol.

In accordance with a particular variant, the reaction mixture may contain at least one (meth)acrylate with three or more double bonds. Preferably, the proportion of (meth)acrylates with three or more double bonds was at least 10 wt.%, particularly preferably at least 25 wt.%, particularly preferably at least 50 wt.%, and very preferably at least 90 wt.%, relative to the weight of the reaction mixture.

In addition, of particular interest are the reaction mixture that contain at most 90 wt.%, particularly preferably at most 75 wt.%, very preferably at most 50 wt.%, and very preferably at most 7 wt.% monomers with two or fewer double bonds.

In a particular form of execution wise to the reaction mixture consisted of 1,6-hexanediamine, trimethylolpropane and/or pentaerythritoltetranitrate. Of special interest, in particular, the reaction mixture that contain trimethylolpropane and pentaerythritoltetranitrate, but it is desirable that the mass ratio of trimethylolpropane to pentaerythritoltetranitrate was in the range of from 10:1 to 1:10, preferably in the range from 5:1 to 1:5, particularly preferably in the range from 3:1 to 1:3 and very preferably in the range from 2:1 to 1:2.

Esev one embodiment, appropriate, to the reaction mixture contained trimethylolpropane and 1,6-hexanediamine, but it is desirable that the mass ratio of trimethylolpropane 1.6-hexaniacinate was in the range of from 10:1 to 1:10, preferably in the range from 5:1 to 1:5, particularly preferably in the range from 3:1 to 1:3 and very preferably in the range from 2:1 to 1:2.

Also of particular interest are the reaction mixture, preferably containing pentaerythritoltetranitrate and 1,6-hexanediamine. It is advisable that the mass ratio of pentaerythritoltetranitrate 1.6-hexaniacinate was in the range of from 10:1 to 1:10, preferably in the range from 5:1 to 1:5, particularly preferably in the range from 3:1 to 1:3 and very preferably in the range from 2:1 to 1:2.

The reaction mixture containing pentaerythritoltetranitrate and/or trimethylolpropane demonstrate that all of a sudden, very high scratch resistance, which increases with the increase in the share of pentaerythritoltetranitrate. The reaction mixture containing 1,6-hexanediamine and/or trimethylolpropane demonstrate a particularly high resistance to UV radiation, which, in particular, can be identified using the xenon test. Thus, the results of tests with a friction wheel, a mixture with a high content of 1,6-hexanediamine is the preserve of high scratch resistance even after exposure to xenon.

Among other things, the resistance of the coating to scratch depends on the number suitable for polymerization of the double bonds relative to the weight of the mixture. The higher this proportion, the greater the resistance of the coating to scratch can be achieved. Thus, it is preferable that the reaction mixture contained at least 1 mol of double bond to 120 g of the reaction mixture, particularly preferably at least 1 mol of double bonds at 105 g of the reaction mixture. To improve the scratch resistance can, in particular, by applying a (meth)acrylates with three or more double bonds.

The reaction mixture can, in particular, to use in the process of reaction injection molding. Accordingly, the mixture has a viscosity that allows you to use it that way. Preferably, the dynamic viscosity of the reaction mixture were in the range from 1 to 200 MPa·s at 25°C., particularly preferably in the range of 5 to 50 MPa·s at 25°C, and the dynamic viscosity can be determined in a Brookfield viscometer with a UL adapter.

For curing the reaction mixture contains at least one initiator, whereby it is possible to carry out radical polymerization of the monomers. You can use thermal initiators, which due to the heat generated form radicals, or photoinitiator that the mod is up radical polymerization by irradiation of electromagnetic waves. Thanks to the use of reaction mixtures containing as thermal initiators, and photoinitiators managed to get special benefits. These advantages are particularly small duration of the working cycle in the manufacture of coated molded articles, and particularly high weatherproof coating, its scratch resistance and adhesion strength.

Suitable thermal initiators are, among other things, azo compounds, peroxidase, persulfate compounds or atomidine. Examples, not limiting the invention are Dibenzoyl peroxide, dicumylperoxide, cumonherface, diisopropylperoxydicarbonate, bis(4-tert-butylcyclohexyl)PEROXYDICARBONATE, diperoleh potassium, peroxydisulfate ammonium 2,2'-azobis(2-methylpropionitrile) (AIBN), 2,2'-azobis-(amidin somaclonal acid)hydrochloride, benzopinacol, derived dibenzyl, methylethylenediamine, 1,1-azobis-cyclohexanecarbonitrile, methylethylketone, acetylacetonate, delauriers, dodecanedioic, tert.-boothelper-2-ethylhexanoate, setoperone, methylisobutylketone, cyclohexanedione, Dibenzoyl peroxide, tert.-butyl peroxybenzoate, tert.-butyl peroxy isopropyl carbonate, 2,5-bis(2-ethylhexanoylperoxy)-2,5-dimethylhexane, tert.-butyl peroxy-2-ethylhexanoate, Proc. of the so-BUTYLPEROXY-3,5,5-trimethylhexanoate, tert.-butylperoxybenzoate, tert.-the peroxyacetate, dicumylperoxide, 1,1-bis(tert.-BUTYLPEROXY)cyclohexane, 1,1-bis(tert.-BUTYLPEROXY)-3,3,5-trimethylcyclohexane, cumylhydroperoxide, tert.-butylhydroperoxide, bis(4-tert.-butylcyclohexyl)PEROXYDICARBONATE and radiculopathies offered by the company DuPont under the name ®Vazo, for example ®Vazo V50 and ®Vazo WS.

It is advisable that the reaction mixture consisted of from 0.01 wt.% up to 3 wt.%, preferably from 0.1 wt.% up to 2.5 wt.%, and particularly preferably from 0.5 wt.% up to 1.5 wt.% thermal initiator relative to the weight of the reaction mixture.

To the preferred initiators, among other things, include α,α-diethoxyacetophenone (DEAP, Upjon Corp), n-butylbenzene ether (®trigonal-14, AKZO) and 2,2-dimethoxy-2-phenylacetophenone (®Igacure 651) and 1-benzoylecognine (®Irgacure 184), bis(2,4,6-trimethylbenzoyl)-phenylphosphine (®Irgacure 819) and 1-[4-(2-hydroxyethoxy)phenyl]-2-hydroxy-2-phenylpropane-1-on (®Irgacure 2959), which in each case is represented in the trade by the company Ciba Geigy Corp.

Share photoinitiator itself critical does not matter. Preferably, the reaction mixture is comprised of from 0.01 wt.% up to 10 wt.%, particularly preferably from 0.3 wt.% up to 5 wt.%, and very preferably from 0.7 wt.% up to 2.3 wt.% photoinitiator relative to the weight of the reaction mixture.

In accordance with the preferred is embodiment the mass ratio between photoinitiators and thermal initiator may be in the range from 20:1 to 1:5, preferably in the range from 10:1 to 15:1 and particularly preferably in the range from 5:1 to 2:1.

In addition to the above components, the reaction mixture may include a Supplement that promotes sliding (grease). This is an unexpected way to improve the quality of retrieval coated molded product from the mold, without reducing the strength of adhesion to the critical values. Accordingly, as auxiliary substances, the mixture may contain a means of facilitating sliding, selected, for example, from the group polysiloxanes, saturated fatty acids having less than 20 carbon atoms, preferably 16 to 18 carbon atoms, and saturated fatty alcohols having less than 20 carbon atoms, preferably 16-18 carbon atoms. Preferably the content in small installments that make up most of 0.25, for example from 0.05 to 0.2 wt.%, relative to the weight of the reaction mixture. It is possible to use, for example, stearic acid, palmitic acid, technical mixtures of stearic and palmitic acids. In addition, it is advisable to use polysiloxane who calironia, as, for example, 13/6/αω2-hexylaniline, and this compound is marketed, e.g. under the trade name RC 725 and distributed by the company Goldschmidt GmbH. Polysiloxane can also be applied in large quantities. Appropriate, is for example, indicators of the content of at most 10 wt.%, preferably at most 1 wt.%, and very preferably a maximum of 0.5 wt.%. In addition, it is possible to apply, for example, n-hexadecanol, n-octadecanol, as well as technical mixtures of n-hexadecanol and n-octadecanol. A particularly preferred means to slip or separation from form, is stearyl alcohol.

In addition, the reaction mixture may include conventional additives, such as dyes, pigments, for example pigments, metal-based, UV stabilizers, fillers or nanomaterials, especially nanoparticles of indium oxide and tin (ITO). The content of these additives depends on the intended application and can therefore vary within wide limits. It is advisable that in the case of additives, their share ranged from 0 to 30 wt.%, particularly preferably from 0.1 to 5 wt.%.

The reaction mixture is represented by the present invention can be applied, in particular, for coating molded products using the reaction injection molding. Accordingly, methods of making coated molded products are also the object of the present invention.

Methods of molding are well known and are generally applicable. In General, when injection molding the molding composition of itracku the Ute in a form for casting under pressure and cooled to obtain a molded product. On the thus obtained product may then be coated.

For example, the thus obtained molded item can finally be cool and remove from the mold. In the second stage of injection molding, separate and following the first, this preliminary casting invest or move, for example, in another tool with a cavity recess and inject into an instrument of the reaction mixture, causing it to casting. This method is known as a way to tab or transfer. For favorable performance clutch, achievable subsequently, a particularly expedient to heat the pre-cast molded product.

According to a preferred form of execution the floor it is advisable to carry out, in particular, by changing molds for injection molding, and when the change between the underlying coating the surface of the molded product and the inner surface of the mold for injection molding is formed intermediate space. The resulting intermediate space can be filled reaction mixture by injection molding. It is preferable to first carry out the curing of the reaction mixture is thermally and after thermal curing by irradiation.

Using this implementation of the method can, in particular, to obtain formula the major product with high resistance to scratches, moreover, the coating is characterized by a particularly good level of grip. In addition, it is also possible to achieve a particularly short cycle.

Device that allows you to work thus presents including those described in earlier publications of Japanese patent JP 11300776 and JP 2005074896.

The molding material for the manufacture of the to-be-coated molded product known as such, and as a mandatory component in these molding material includes polymers suitable for thermoplastic processing. To the preferred polymers include, for example, poly(meth)acrylates, in particular polymethyl methacrylate (PMMA), poly(meth)acrylimide, polyacrylonitrile, polystyrenes, polyethers, polyesters, polycarbonates, polyvinylchloride. Preferred while poly(meth)acrylates and poly(meth)acrylimide. These polymers can be used individually and in mixtures. In addition, these polymers can be in the form of copolymers. The preferred copolymers are, inter alia, copolymers of styrene and Acrylonitrile, styrene and maleic acid, and copolymers of polymethyl methacrylate, in particular copolymers of polymethyl methacrylate and poly(meth)acrylimide.

Particularly preferred molding composition contains at least 15 wt.%, preferably at least 50 wt.%, and particularly preferably is at least 80 wt.% polymethylmethacrylate, polymethacrylimide and/or copolymers of polymethyl methacrylate relative to the total weight of the molding composition.

Preferably, the molding material of the present invention contains a poly(meth)acrylates. The expression "(meth)acrylate" means the methacrylates and acrylates, and mixtures thereof.

Poly(meth)acrylates are polymers obtained by polymerization of a mixture of monomers containing at least 60 wt.%, preferably at least 80 wt.%, (meth)acrylate relative to the weight of the monomers. These monomers are widely known in the professional environment and commercially available.

These include, among others, (meth)acrylic acid and (meth)acrylates derived from saturated alcohols, such as methyl(meth)acrylate, ethyl(meth)acrylate, propyl(meth)acrylate, butyl(meth)acrylate, pentyl(meth)acrylate, hexyl(meth)acrylate, 2-ethylhexyl(meth)acrylate, heptyl(meth)acrylate; (meth)acrylates derived from unsaturated alcohols, for example, oleyl(meth)acrylate, 2-PROPYNYL(meth)acrylate, allyl(meth)acrylate, vinyl(meth)acrylate, etc.;

amides and NITRILES of (meth)acrylic acid, for example

N-(3-dimethylaminopropyl)(meth)acrylamide,

N-(diethylphosphino)(meth)acrylamide,

1 methacryloylamido-2-methyl-2-propanol; cycloalkyl(meth)acrylates, such as 3-vinylcyclohexane(meth)acrylate, bornyl(meth)acrylate;

hydroxyalkyl(methacrylates, for example,

3-hydroxypropyl(meth)acrylate,

3,4-dihydroxybutyl(meth)acrylate,

2-hydroxyethyl(meth)acrylate, 2-hydroxypropyl(meth)acrylate;

glycolide(meth)acrylates, such as 1,4-butanediol(meth)acrylate,

(meth)acrylates of atherosperma, for example

tetrahydrofurfuryl(meth)acrylate, vinyloxyethoxy(meth)acrylate; and

polyhydric (meth)acrylates, for example

trimethylolpropane(meth)acrylate.

In addition to the above (meth)acrylates for the production of poly(meth)acrylates can use other unsaturated monomers suitable for copolymerization with the above-mentioned (meth)acrylates. As a rule, these compounds are used in an amount of 0-40 wt.%, preferably from 0 to 20 wt.%, the weight of the monomers and comonomers used individually or in a mixture.

These include 1-alkenes, such as hexene-1, hepten-1; branched alkenes, such as vinylcyclohexane, 3,3-dimethyl-1-propene, 3-methyl-1-Diisobutylene, 4-methylpentene-1;

vinyl esters such as vinyl acetate;

styrene, substituted styrene with one alkyl substituent in the side chain, such as α-methylsterols and α-atillery, substituted styrene with one alkyl substituent in the ring, as, for example, vinyltoluene and para-methylsterol, halogenated styrene, such as, for example, monoliteral, dichlorostyrene, dibromostyrene and cerebrosterol;/p>

heterocyclic vinyl compounds, such as 2-vinylpyridine, 3-vinylpyridine, 2-methyl-5-vinylpyridine, 3-ethyl-4-vinylpyridine, 2,3-dimethyl-5-vinylpyridine, vinylpyridine, vinylpyridine, 9-vinylcarbazole, 3-vinylcarbazole, 4-vinylcarbazole, 1-vinylimidazole, 2-methyl-1-vinylimidazole, N-vinyl pyrrolidone, 2-vinyl pyrrolidone, N-vinylpyrrolidone, 3-vinylpyrrolidone, N-vinylcaprolactam, N-vinylboronate, vinyloxy, viniferin, Venitian, vinylsilane, vinylthiazole and hydrogenated vinylthiazole, vinylacetal and hydrogenated vinylacetal;

vinyl and isopentylamine esters;

derivatives of maleic acid, such as maleic acid anhydride, the anhydride methylmaleimide acid, maleinimide, methylmaleimide; and

dieny, as, for example, divinylbenzene.

Preferred poly(meth)acrylates obtained by polymerization of mixtures containing at least 20 wt.%, in particular at least 60 wt.%, and particularly preferably at least 80 wt.%, of methyl methacrylate, preferably relative to the total weight of the monomers subjected to polymerization. In the framework of the present invention, these polymers are called polymetylmetacrylate. The preferred molding material may contain various poly(meth)acrylates, which differ, for example, the molecular weight or composition of the monomers.

Itself the of the homopolymers and/or copolymers of (meth)acrylates of the above monomers by various methods of radical polymerization is known. Thus, the polymers can be synthesized by polymerization in bulk, solution, suspension or emulsion. Description polymerization in mass - Houben-Weyl, volume E20, part 2 (1987), S. 1145ff. Valuable guidance on polymerization in the solution presented there, starting with str. Explanations of the technology of polymerization in suspension are also presented in this edition, starting with str, and descriptions and explanations of polymerization in emulsion in the same, starting with str.

In addition, the preferred molding material may include poly(meth)acrylimide. Poly(meth)acrylimide contain repeating patterns that can be represented by the formula (I)

where R1and R2the same or different and mean hydrogen or methyl group, and R3means hydrogen or alkyl or aryl residue having up to 20 carbon atoms.

Preferably, the monomers of structure (I) was more than 30 wt.%, particularly preferably more than 50 wt.%, and very preferably more than 80 wt.% poly(meth)acrylimide.

Fabrication of poly(meth)acrylimide itself known and described, for example, in patents great Britain GB-PS 1078425, GB-PS 1045229, German patent DE-PS 1817156 (=US-PS 3627711) or DE-PS 2726259 (=US-PS 4139685).

In addition, these copolymerizate may contain other monomers, which receive, for example, from complex e is IRow acrylic or methacrylic acid, in particular, lower alcohols with 1-4 carbon atoms, styrene, maleic acid or its anhydride, basis of itaconic acid or its anhydride, vinylpyrrolidone, vinyl chloride or vinylidenechloride. The proportion of comonomers that are not amenable to cyclization or are her only with great difficulty, should not exceed 30 wt.%, preferably 20 wt.%, and particularly preferably 10 wt.%, relative to the weight of the monomers.

It is preferable to apply the molding material, which include poly(N-methylmethacrylate) (PMMA) and/or polymetylmetacrylate (PMMA). Poly(N-methylmethacrylate) (PMMA), polymetylmetacrylate (PMMA) and/or copolymers of PMMI-PMMA are preferably copolymers of PMMA and PMMA, which receive partial cyclomedia PMMA (PMMA, which synthesize partial imidization PMMA, usually made so that imidazole is subjected to at most 83% of the used PMMA. The resulting product is called PMI, but it is, strictly speaking, is a copolymer of PMMA-PMMA.) As PMMA and PMMA or copolymers of PMMI-PMMA commercially available, for example, under the trade name Pleximid from the company Röhm. For example, one such copolymers (Pleximid 8803) contains 33% of the monomers MMI, 54.4% of the monomers MMA, 2.6% of the monomers of methacrylic acid and 1.2% of the anhydride monomers. As these products and their production are known (HansR. Kricheldorf, Handbook of Polymer Synthesis, Part A, Verlag Marcel Dekker Inc. New York - Basel - Hong Kong, S. 223 f.; H.G.Elias, Makromoleküle, Hüthig und Wepf Verlag Basel - Heidelberg - New York; US-PSS 2146209, 4246374).

In addition, the molding material may contain a styrene-Acrylonitrile polymers (SAN, SAN). Particularly preferred styrene-Acrylonitrile polymers can be obtained by polymerization of mixtures which contain the following components

from 70 to 92 wt.% styrene,

from 8 to 30 wt.% Acrylonitrile and

from 0 to 22 wt.% other comonomers, in each case relative to the total weight of the monomers subjected to polymerization.

To improve the impact strength of the molding material can be added grafted copolymerizate silicone rubber, which include:

from 0.05 to 95 wt.%, respect to the total mass of copolymerizate, kernel (a) of the organosilicon polymer corresponding to the General formula (R2SiO2/2)x·(RSiO3/2)y·(SiO4/2)zwhere x=0-99,5 mol %, y=from 0.5 to 100 mol %, z=0-50 mol %, and R represents the same or different alkyl or alkeneamine residue with 1-6 carbon atoms or a substituted hydrocarbon residues,

from 0 to 94.5 wt.%, respect to the total mass of copolymerizate, polydiorganosiloxane layer (b) and

from 5 to 95 wt.%, respect to the total mass of copolymerizate, shell) made of organic polymers; the kernel) before inoculation includes alkilinity, and shell) are obtained by radical polymerization mixture comprising esters of acrylic acid and methacrylates.

The molding material according to the invention may also contain modifiers based on acrylate rubber. Unexpected way, it is possible to achieve excellent impact properties of the molded articles made from the molding masses, at room temperature (about 23°C). Especially it is essential that lasts a very high level of mechanical and thermal characteristics, such as modulus of elasticity and the softening temperature for Vika. If you try to achieve a similar impact properties of the sample with a cut through a stand-alone application of modifiers based on acrylate rubber or grafted copolymerizate silicone rubber, the deterioration of these characteristics is more significant.

Such modifiers based on acrylate rubbers known as such. They are copolymerizate having the structure of "core-shell", and the core and shell contain a high proportion of previously described (meth)acrylates.

While the preferred modifiers based on acrylate rubbers have two shells that differ in composition.

Particularly preferred modifiers based on the acrylate rubbers are the number of the e inter alia the following structure.

Kernel: polymerizat with a share of methyl methacrylate at least 90 wt.% the weight of the kernel.

Shell 1: polymerizat with a share of butyl acrylate at least 80 wt.% the weight of the first shell.

Shell 2: polymerizat with a share of methyl methacrylate at least 90 wt.% the weight of the second shell.

The preferred modifier based on acrylate rubber may be, for example, the following structure.

Kernel: copolymerizate of methyl methacrylate (95,7%wt.), ethyl acrylate (4%wt.) and illimitability (0.3 wt.%).

Shell 1: copolymerizate of butyl acrylate (81.2 wt.%), styrene (17.5 wt.%) and illimitability (1.3 wt.%).

Shell 2: copolymerizate of methyl methacrylate (96 wt.%) and ethyl acrylate (4 wt.%).

The ratio of core and shell (shells) in the modifier based on acrylate rubber may be varied within wide limits. It is advisable that the ratio of the weights of the core and shell of the K/S was in the range of from 20:80 to 80:20, preferably from 30:70 to 70:30, for modifiers with one shell or in the case of modifiers with two shells relations "core/first shell second shell, denoted K/S1/S2 in the range of 10:80:10 to 40:20:40, particularly preferably from 20:60:20 to 30:40:30.

The particle size of the modifier based on acrylate rubber is usually from 50 to 1000 nm, preferably from 100 to 500 nm, and particularly preferably from 150 to 450 nm, without any restrictions.

In accordance with a particular variant of the present invention, the mass ratio of the grafted copolymerizate silicone rubber and a modifier based on acrylate rubber is in the range from 1:10 to 10:1, preferably from 4:6 to 6:4.

Special molding material consist of

f1) from 20 to 95 wt.% poly(meth)acrylates,

f2) from 0 to 45 wt.% styrene-Acrylonitrile polymers

f3) from 5 to 60 wt.% the grafted copolymerization silicone rubber

f4) from 0 to 60 wt.% modifiers toughness based on acrylate rubber, in each case relative to the weight of the components f1-f4, and conventional additives and fillers.

In addition, subject to polymerization of the compositions of the molding material according to the invention or produced from these molded articles may contain other widely known additives. These additives are, including the molecular weight regulators, separation agents, antistatics, antioxidants, helping to extract from the mold, fire tools, lubricants, dyes, means of improving fluidity, fillers, light stabilizers, pigments, means of improving pogolosovali and emollients.

Additives are used in conventional amounts, i.e. up to 80 wt.%, preferably up to 30 wt.%, respect to the total mass. If this amount exceeds 80 wt.% respect to the total mass is about can deteriorate the properties of plastics, for example, their suitability for processing.

The average molecular weight of Mwthe homopolymers and / or copolymers that are designed according to the invention for use as a matrix, may be varied within wide limits, and it usually modify accordingly its purpose and the method of processing of the molding composition. In the General case it is in the range between 20000 and 1,000,000 g/mol, preferably from 50,000 to 500,000 g/mol and particularly preferably from 80,000 to 300000 g/mol, without any limitations

The thickness of the coating in many cases depends on the type of the reaction mixture and molded products. The manufacture of very thin coatings in many cases it is very difficult from a technical point of view. On the other hand, very thick coatings often exhibit a strong tendency to form cracks, and the adhesive strength of partly reduced. Therefore, of particular interest are molded product is coated, the thickness of which preferably is in the range from 1 μm to 100 μm, preferably from 5 μm to 75 μm, particularly preferably from 8 μm to 50 μm, very preferably from 10 μm to 40 μm, and very preferably from 15 μm to 30 μm. The coating thickness can be adjusted by adjusting the size of the gap between the underlying coating the surface of the molded product and the inner surface of a form for casting under duress.

The temperature at which the molding composition injected into the mold for injection molding, depends, inter alia, on the type of polymers and additives. The values of the temperatures at which spend processing known to the specialist. In the General case, the molding composition injected into the mold for molding at a temperature in the range from 150 to 350°C., preferably from 220 to 330°C.

The temperature of the equipment can also be set to a value common to a given molding material. It is preferable to cool the molding composition to a temperature in the range from 40 to 160°C., particularly preferably from 70 to 150°C., and very preferably from 60 to 80°C before injecting the reaction mixture into an intermediate space.

The temperature at which carry out thermal curing of the reaction mixture depends on the type of thermal initiator. Of a special interest, in particular, the ways in which thermal curing in the mold for injection molding is carried out, preferably, at a temperature in the range from 70 to 160°C., preferably from 80 to 130°C., very preferably in the range from 85 to 120°C., and very preferably in the range from 90 to 110°C. If the temperature during thermal curing is too high, after irradiation with ultraviolet light can form cracks. At too low temperature the arts coverage in many cases demonstrates too strong adhesion to the metal of the tool for injection molding, moreover, higher temperature during thermal curing may also partly to improve scratch resistance. The above temperature ranges turned out to be particularly useful, but it does not impose any restrictions.

In accordance with a special form of execution of the curing of the reaction mixture can be, for example, at a temperature in the range from 70 to 85°C., preferably in the range from 75 to 80°C. This form of exercise is suitable, in particular, in cases where the reaction mixture contains a particularly high proportion of compounds having at least four double bonds, for example PENTAERYTHRITE(meth)acrylate. In accordance with another variant of the method according to the invention, the curing of the reaction mixture can be conducted at a temperature ranging from 85°C to 120°C, preferably in the range from 90°C to 110°C. This form of exercise is suitable, in particular, in cases where the reaction mixture contains a particularly high proportion of compounds having two or three double bonds, for example 1,6-hexanediol(meth)acrylate.

To be cured of the reaction mixture at the same temperature, to which the casting is cooled in the tool. While the beginning and the rate of polymerization (curing) of the reaction mixture can be adjusted by selecting the kind and proportion of thermal initiator, and changing the temperature in which trument. In addition, the beginning of the curing can be controlled by varying contained in the reaction mixture of a multifunctional (meth)acrylates.

After thermal curing pre utverzhdennuyu the reaction mixture can be cured by irradiation at a temperature ranging from 0°C to 120°C, preferably from 10°C. to 40°C. For this purpose it is possible, depending on the type of initiator, to use the conventional radiation sources. Preferably the curing by UV radiation, and the wavelength of the applied source may, in particular, to lie in the range from 100 nm to 500 nm, preferably from 200 to 400 nm.

The present invention is, in particular, new molded product coating, which have an excellent combination of (profile) qualities and for which, accordingly, there is a wide range of applications. Accordingly, an object of the present invention are also molded product coated, includes made by a method of molding a molded article containing at least one polymer selected from the group comprising poly (methyl methacrylate), polymethacrylate, a copolymer of styrene and Acrylonitrile, a copolymer of styrene and maleic acids and copolymers of polymethylmethacrylate, and the floor, which is obtained by polymerization of (meth)acrylate at IU is e with two double bonds.

The moldings, in particular, is highly resistant to scratches, which can be defined, for example, a test with a friction wheel. Of particular interest, in particular, are bearing a coating of a transparent molded product, performance dicatate (turbidity) after testing the scratch resistance according to the standard ASTM 1044 (12/05) (load 500 g, number of cycles 100) increases at most 10%, particularly preferably at most 6%, and very preferably at most 3%. In addition, the scratch resistance according to the standard ASTM 1044 (12/05) (load 500 g, number of cycles 100) can also be measured by reducing Shine (gloss) at 20°. While the preferred bearing a coating of a transparent molded articles show after testing the scratch resistance by standard ASTM 1044 (12/05) (load 500 g, number of cycles 100) decrease in gloss at 20° at most 10%, particularly preferably at most 6%, and very preferably at most 3%. The decrease in gloss at 20° can be identified by the standard DIN EN ISO 2813. Determining the brightness variations can be, for example, to measure the resistance of the painted molded or painted coatings to scratch.

In addition, the molded product according to the invention have excellent grip and durability is Ceplene can be investigated using the test lattice cut. For this purpose, the coating make cross-cuts and divide it accordingly on separate parts, like a chessboard. In General, this form at least 20 individual segments, preferably at least 25 segments. The distance between the lines is about 1 mm, Then paste and tear off the adhesive tape of a width of 25 mm breakout Force of adhesive tape on cm2measured to DIN EN ISO 2409, is about 10 N per 25 mm width. For the experiment can be applied, for example, adhesive tape, which under the trade name "Type 4104" distributes the company Tesa. Preferably, the molded product coated received the test results with lattice cut at most a score of 1, particularly preferably a score of 0. Molded product coated receive a score of 1 in cases where the number of detached segments are not significantly exceeds 5%. If not detached none of the segments (0%), the molded product coated receive a score of 0.

Moreover, the preferred coatings have no cracks and demonstrate high resistance to chemicals. So, cover, in particular, to resist the impact of ethanol, a mixture of ethanol and water (70/30), gasoline, Pancreatin, sulfuric acid (1%), and contact with these compounds does not cause formation of cracks on the agreed-on voltage.

The preferred molded product may have a modulus of elasticity equal to or greater than 1200 MPa, preferably equal to or greater than 1600 MPa according to ISO 527 (1 mm/min). In addition, the molded product may have a toughness in Sharpie, equal to or greater than 10 kJ/m2preferably equal to or greater than 15 kJ/m2according to ISO179.

Moreover, you can create a plastic that has a limit of tensile strength equal to or greater than 55, preferably equal to or greater than 60, according to DIN 53 455-1-3 (at 1 mm/min), and has excellent scratch resistance.

Especially unexpected that scratch-resistant molded product may have a transmittance τD65not less than 88%, preferably at least 90%, according to DIN 5036 part 3. The above mechanical and/or optical properties of the molded articles do not impose any limitations on the invention. On the contrary, these data are intended to represent a particularly outstanding properties of the molded product, which can be achieved while maintaining good resistance to scratches.

Molded product of the present invention can also exhibit excellent weather. Thus, the results of the test with a xenon lamp, weatherproof is preferably m is Nisha least 1000 hours, particularly preferably at least 2000 hours. This resistance can be defined, for example, through a slight drop in light transmission or through a slight fall resistance to scratching. Of particular interest, in particular, are molded product is coated, the transmittance of which after 2000 hours of irradiation with a xenon lamp is reduced at most 10%, particularly preferably at most 5%.

In addition, the preferred molded product after irradiation with a xenon lamp for 2000 hours can according to the results of tests for scratch resistance according to the standard ASTM 1044 (12/05) (load 500 g, number of cycles 100) to demonstrate the improvement of dicatate at most 25%, particularly preferably at most 15%. In addition, the scratch resistance after irradiation with a xenon lamp can also be defined through the reduction of Shine. While the preferred bearing coating molded articles show after irradiation with a xenon lamp for 2000 hours according to the results of tests for scratch resistance according to the standard ASTM 1044 (12/05) (load 500 g, number of cycles 100) decrease in gloss at 20° at most 25%, particularly preferably at most 20%, and very preferably at most 15%.

Moreover, the preferred coating obtained by using with whom edst coating according to the invention, demonstrate high resistance in the test with the change in climatic conditions, and, in spite of the deformation of the basic product, cracks are formed only to a minor extent. For testing with changing climatic conditions, it is preferable to apply the program loads presented in figure 1 (BMW PR 303 - part d).

The following is an explanation of the invention based on examples and control examples, not limiting the present invention.

Comparative example 1

In manual experiment investigated the effectiveness of existing reaction mixtures. To do this, first from the molding material of PMMA (8N on the market by the company Röhm GmbH) method of molding manufactured casting (200×100×3 mm) and pre-heat it to 85°C. For heating the casting was placed between two metal cylinders (polished), with the lower cylinder had a diameter of 150 mm, and the upper 120 mm in Order to prevent too strong cooling of the upper metal cylinder, after about 5 minutes of heating the casting it was removed, placed on a heating plate next and again fueled (maintaining the temperature at 85°C). At this time the casting was more metal cylinder and the heating is continued for 5 minutes without a clip.

Then (after preheating the casting for 10 minutes) cast was applied to 1 g of the reaction mixture, included 68,60% wt. 1,6-hexanediamine, 29,40% wt. trimethylolpropane, 1 wt.% bis(4-tert.-butylcyclohexyl)PEROXYDICARBONATE (thermal initiator) and 1 wt.% 1-benzoylecognine (®Irgacure 184), and immediately placed in the reaction solution cargo in the form of smaller metal cylinder, heated to 85°C. thereafter, the coating is allowed to harden within 60 seconds, the reaction was started after about 15 seconds after applying a smaller metal cylinder. This set, watching, speaking of the reaction solution. Got the floor without cracks.

The resistance of the coating to scratch investigated by exposing it manually using steel potency, and used a scale from 0 (very high scratch resistance) to 7 (very low scratch resistance). Thus obtained coating was rated 6 (low scratch resistance).

Example 1

Comparative example 1 in General reiterated, however, after thermal curing casting coated was subjected to curing by irradiation with ultraviolet light. The floor still had no cracks. The resistance of the coating to scratch investigated by exposing it manually using steel potency, and the thus obtained coating received a score of 3 (good resistance to dust, shock, scratches the us).

Comparative example 2

Test case 1 in General reiterated, however, used the reaction mixture, which included 67,90% wt. 1,6-hexanediamine, 29,10 wt.% trimethylolpropane, 1 wt.% bis(4-tert.-butylcyclohexyl)PEROXYDICARBONATE (thermal initiator) and 2 wt.% 1-benzoylecognine (®Irgacure 184).

The resistance of the coating to scratch investigated by exposing it manually using steel potency, and the thus obtained coating was rated 6 (low scratch resistance).

Example 2

Comparative example 2 is basically repeated, however, after thermal curing casting coated was subjected to curing by irradiation with ultraviolet light. The floor still had no cracks. The resistance of the coating to scratch investigated by exposing it manually using steel potency, and the thus obtained coating received a score of 3 (good scratch resistance).

Example 3

Example 1 main features repeated, however, used the reaction mixture, which included 97,75% wt. trimethylolpropane, 0.25 wt.% bis(4-tert.-butylcyclohexyl)PEROXYDICARBONATE (thermal initiator) and 2 wt.% 1-benzoylecognine (®Irgacure 184).

The reaction heat curing started about h is cut 15 seconds. After curing under UV radiation received does not contain cracks coating having a thickness of about 20 μm (average value on the results of the four measurements).

The resistance of the coating to scratch investigated by exposing it manually using steel potency, and the thus obtained coating was rated 1 (very good resistance to scratches).

Example 4

Example 3 in General repeated, and the reaction temperature, however, was lowered from 85°C to 80°C.

The reaction heat curing began in approximately 25 seconds. After curing under UV radiation received does not contain cracks coating having a thickness of about 25 μm (average value on the results of the four measurements).

The resistance of the coating to scratch investigated by exposing it manually using steel potency, and the thus obtained coating was rated 1 (very good resistance to scratches).

Example 5

Example 4 in General reiterated, however, used the reaction mixture, which included 97,50% wt. trimethylolpropane, 0.50 wt.% bis(4-tert.-butylcyclohexyl)PEROXYDICARBONATE (thermal initiator) and 2 wt.% 1-benzoylecognine (®Irgacure 184).

The reaction heat curing started around the via 15 seconds. After curing under UV radiation received does not contain cracks coating having a thickness of about 12 μm (average value on the results of the four measurements).

The resistance of the coating to scratch investigated by exposing it manually using steel potency, and the thus obtained coating was rated 1 (very good resistance to scratches).

Example 6

Example 4 in General reiterated, however, used the reaction mixture, which included 97,00% wt. trimethylolpropane, 1.00 wt.% bis(4-tert.-butylcyclohexyl)PEROXYDICARBONATE (thermal initiator) and 2 wt.% 1-benzoylecognine (®Irgacure 184).

The reaction heat curing began in approximately 8 seconds. After curing under UV radiation received does not contain cracks coating having a thickness of about 13 μm (average value on the results of the four measurements).

The resistance of the coating to scratch investigated by exposing it manually using steel potency, and the thus obtained coating was rated 1 (very good resistance to scratches).

Example 7

Example 4 in General reiterated, however, used the reaction mixture, which consisted of 9 g of trimethylolpropane, 1 g pinterits is tetraacrylate, 0.05 g of bis(4-tert.-butylcyclohexyl)PEROXYDICARBONATE (thermal initiator) and 0.20 g of 1-benzoylecognine (®Irgacure 184).

After curing under UV radiation received does not contain cracks coating having a thickness of about 27 μm (average value on the results of the four measurements).

The resistance of the coating to scratch investigated by exposing it manually using steel potency, and the thus obtained coating was rated about 0.5 (very good resistance to scratches).

Example 8

Example 7 in General reiterated, however, used the reaction mixture, which consisted of 8 g of trimethylolpropane, 2 g of pentaerythritoltetranitrate, 0.05 g of bis(4-tert.-butylcyclohexyl)PEROXYDICARBONATE (thermal initiator) and 0.20 g of 1-benzoylecognine (®Irgacure 184).

After curing under UV radiation received does not contain cracks coating having a thickness of about 14 μm (average value on the results of the four measurements).

The resistance of the coating to scratch investigated by exposing it manually using steel potency, and the thus obtained coating was rated 0 (excellent resistance to scratch; using muscle power to get scratches failed).

Example 9

Example 7 in the basics of the s terms, repeated, however, used the reaction mixture, which consisted of 5 g of trimethylolpropane, 5 g of pentaerythritoltetranitrate, 0.05 g of bis(4-tert.-butylcyclohexyl)PEROXYDICARBONATE (thermal initiator) and 0.20 g of 1-benzoylecognine (®Irgacure 184). After curing under UV radiation received does not contain cracks coating having a thickness of about 16 μm (average value on the results of the four measurements).

The resistance of the coating to scratch investigated by exposing it manually using steel potency, and the thus obtained coating was rated 0 (excellent resistance to scratch; using muscle power to get scratches failed).

Example 10

Example 7 in General reiterated, however, used the reaction mixture, which consisted of 3 g of trimethylolpropane, 7 g pentaerythritoltetranitrate, 0.025 g of bis(4-tert.-butylcyclohexyl)PEROXYDICARBONATE (thermal initiator) and 0.20 g of 1-benzoylecognine (®Irgacure 184).

Thermal curing was carried out at 85°C, and it was enough to cure within 30 seconds. After curing with ultraviolet radiation received floor without cracks.

The resistance of the coating to scratch investigated by exposing it manually using steel potency, and the scientists thus the coating was rated 0 (excellent resistance to scratches).

Example 11

In manual experiment investigated the effectiveness of existing reaction mixtures. To do this, first from the molding material of PMMA (8N on the market by the company Röhm GmbH) method of molding manufactured casting (200×100×3 mm) and pre-heat it to 85°C. For heating the casting was placed between two metal cylinders (polished), with the lower cylinder had a diameter of 150 mm, and the upper 120 mm in Order to prevent too strong cooling of the upper metal cylinder, after about 5 minutes of heating the casting it was removed, placed on a heating plate next and again fueled (maintaining the temperature at 85°C). At this time the casting was more metal cylinder and the heating is continued for 5 minutes without a clip.

Then (after preheating the casting for 10 minutes) cast inflicted 1.5 g of the reaction mixture comprising 5 g of trimethylolpropane, 5 g of pentaerythritoltetranitrate, 0.025 g of bis(4-tert.-butylcyclohexyl)PEROXYDICARBONATE (thermal initiator) and 0.20 g of 1-benzoylecognine (®Irgacure 184), and immediately placed in the reaction solution cargo in the form of smaller metal cylinder, heated to 85°C., and a metal weight of mass 3 kg, Then the coating allowed to harden for 30 seconds. Got the floor without cracks.

After termicheskogo curing the casting coated was subjected to curing under UV radiation. When cooled, the coating was irradiated with UV light in the absence of nitrogen for about 1 minute. Got the floor without cracks thickness of about 20 μm. The resistance of the coating to scratch investigated by exposing it manually using steel potency, and the thus obtained coating was rated 0 (excellent resistance to scratches).

Example 12

Example 11 in General reiterated, however, produced a coating thickness of 80 μm. For this purpose, the casting has left the ring, carved from a polyester film having a thickness of about 80 microns.

After thermal curing first got the floor without cracks. The irradiation with UV light has caused, however, expressed the formation of cracks. The resistance of the coating to scratch investigated by exposing it manually using steel potency, and the thus obtained coating was rated 0 (excellent resistance to scratches).

Example 13

In manual experiment investigated the effectiveness of existing reaction mixtures. To do this, first from the molding material of PMMA (8N on the market by the company Röhm GmbH) method of molding manufactured casting (200×100×3 mm) and pre-heat it to 85°C. For heating the casting was placed between two metal blocks (polished) size 170×170×27 mm H is usually used to prevent too strong cooling of the upper metal block, after about 5 minutes of heating the casting it was removed, placed on a heating plate next and again fueled (maintaining the temperature at 85°C). At this time the casting was lying on the bottom of the metal block, and the heating is continued for 5 minutes without a clip.

Then (after preheating the casting for 10 minutes) cast inflicted 1.5 g of the reaction mixture comprising 5 g of trimethylolpropane, 5 g of pentaerythritoltetranitrate, 0.05 g of bis(4-tert.-butylcyclohexyl)PEROXYDICARBONATE (thermal initiator) and 0.20 g of 1-benzoylecognine (®Irgacure 184), and immediately pressed the reaction solution of the upper metal block heated to 85°C. Then the coating is allowed to harden in 60 seconds. Got the floor without cracks.

After thermal curing casting coated was subjected to curing under UV radiation. When cooled, the coating was irradiated with UV light in the absence of nitrogen for about 1 minute. Got the floor without cracks.

The resistance of the coating to scratch investigated by standard ASTM 1044 (12/05) (load 500 g, number of cycles 100). Indicator of turbidity shaped products increased by 2.8%. In addition, it was determined the adhesion strength of the coating through the test with lattice cut. For this purpose, the coating make cross-cuts and the section is aout it accordingly, in some parts, like a chessboard. The distance between the lines is about 1 mm, Then paste and tear off the adhesive tape. For the experiment used the adhesive tape, which under the trade name "Type 4104" distributes the company Tesa. The adhesive strength of the coating was so high that didn't come off any one item.

Example 14

Example 13 in General reiterated, however, used the reaction mixture, which consisted of 10 g of trimethylolpropane, 0.05 g of bis(4-tert.-butylcyclohexyl)PEROXYDICARBONATE (thermal initiator) and 0.20 g of 1-benzoylecognine (®Irgacure 184).

The resistance of the coating to scratch investigated by standard ASTM 1044 (12/05) (load 500 g, number of cycles 100) by means of a friction wheel. Indicator of turbidity moulded products increased by 5.4%. In addition, it was determined the adhesion strength of the coating through the test with lattice cut. For this purpose, the coating make cross-cuts and divide it accordingly on separate parts, like a chessboard. The distance between the lines is about 1 mm, Then paste and tear off the adhesive tape. For the experiment used the adhesive tape, which under the trade name "Type 4104" distributes the company Tesa. The strength of the coupling is placed coverage was so high, what was cut out any one element.

In addition, manufactured thus molded product was tested with the change of climatic conditions (BMW PR 303 - part d), the program loads presented in figure 1. In this experiment the fitting was severely deformed, however, the formation of cracks was very small.

In addition, manufactured thus molded article was irradiated with over 2000 hours light xenon lamp (according to DIN EN ISO 4892, part 2, test xenon bulb: Atlas/Heraeus, type 1200), resulting in a transmittance decreased with only 91.8% of up to 91.1%. The stability of the coating to the scratches on the results of the test with a xenon lamp also deteriorated slightly. The rate of dicatate molded products has increased from 5.4% to 22.3%.

Example 15

Example 13 in General reiterated, however, used the reaction mixture, which consisted of 5 g of trimethylolpropane, 5 g of 1,6-hexanediamine, 0.05 g of bis(4-tert.-butylcyclohexyl)PEROXYDICARBONATE (thermal initiator) and 0.20 g of 1-benzoylecognine (®Irgacure 184).

The resistance of the coating to scratch investigated by standard ASTM 1044 (12/05) (load 500 g, number of cycles 100) by means of a friction wheel. Indicator of turbidity moulded products increased by 5.8%. In addition, it was determined the strength of scal the Deposit coverage through test with lattice cut. For this purpose, the coating make cross-cuts and divide it accordingly on separate parts, like a chessboard. The distance between the lines is about 1 mm, Then paste and tear off the adhesive tape. For the experiment used the adhesive tape, which under the trade name "Type 4104" distributes firm s. The adhesive strength of the coating was so high that didn't come off any one item.

In addition, manufactured thus molded product was tested with the change of climatic conditions (BMW PR 303 - part d), the program loads presented in figure 1. In this experiment molded product was severely deformed, but cracks were absent.

In addition, manufactured thus molded article was irradiated with over 2000 hours light xenon lamp (according to DIN EN ISO 4892, part 2, test xenon bulb; Atlas/Heraeus, type 1200), resulting in a transmittance decreased only from 91.4% to 91.1%of. The stability of the coating to the scratches on the results of the test with a xenon lamp also deteriorated slightly. The rate of dicatate molded products has increased from 5.8% to 13.5%.

Example 16

Example 13 in General reiterated, however, used the reaction mixture, which consisted of 7.2 g of trimethylolpropane is crylate, 1.8 g of 1,6-hexanediamine, 1.0 g of polysiloxane (additive RC 725 promoting sliding, represented in the trade by the company Goldschmidt GmbH), 0.1 g of bis(4-tert.-butylcyclohexyl)PEROXYDICARBONATE (thermal initiator) and 0.20 g of 1-benzoylecognine (®Irgacure 184). In addition, used painted black molding of PMMA (8N black 90084 represented in the trade by the company Röhm GmbH).

Thermal curing was carried out at 90°C, and it was enough curing for 60 seconds. After curing with ultraviolet radiation received floor without cracks.

The resistance of the coating to scratch investigated by standard ASTM 1044 (12/05) (load 500 g, number of cycles 100) by means of a friction wheel. This was a decrease in gloss at 20° according to DIN EN ISO 2813, amounting to 6.8%.

Example 17

Example 16 in General repeated, and the reaction temperature, however, increased from 90°C to 95°C.

The resistance of the coating to scratch investigated by standard ASTM 1044 (12/05) (load 500 g, number of cycles 100) by means of a friction wheel. This was a decrease in gloss at 20° according to DIN EN ISO 2813, which amounted to 5.3%.

Example 18

Example 15 in General reiterated, however, used the reaction mixture, which consisted of 5 g of trimethylolpropane, 5 g of 1,6-hexanediamine, 0.1 g of bis(4-tert.-butylcyclohexyl the Il)PEROXYDICARBONATE (thermal initiator) and 0.20 g of 1-benzoylecognine (®Irgacure 184). In addition, used painted black molding of PMMA (8N black 90084 represented in the trade by the company Röhm GmbH).

Thermal curing was carried out at 90°C, and it was enough to cure within 30 seconds. After curing with ultraviolet radiation received floor without cracks.

The resistance of the coating to scratch investigated by standard ASTM 1044 (12/05) (load 500 g, number of cycles 100) by means of a friction wheel. This was a decrease in gloss at 20° according to DIN EN ISO 2813, which amounted to 4.7%.

In addition, manufactured thus molded product was tested with the change of climatic conditions (BMW PR 303 - part d), the program loads presented in figure 1. In this experiment molded product was severely deformed, but cracks were absent.

Example 19

Example 18 in General reiterated, however, used the reaction mixture, which consisted of 7 g trimethylolpropane, 3 g of 1,6-hexanediamine, 0.1 g of bis(4-tert.-butylcyclohexyl)PEROXYDICARBONATE (thermal initiator) and 0.20 g of 1-benzoylecognine (®Irgacure 184).

Thermal curing was carried out at 90°C, and it was enough curing for 60 seconds. After curing with ultraviolet radiation received floor without cracks.

The resistance of the coating to scratch investigated by standard ASTM 1044 (12/05) (load 500 g, number of cycles 100) by means of a friction wheel. This was a decrease in gloss at 20° according to DIN EN ISO 2813 1.8%.

In addition, manufactured thus molded product was tested with the change of climatic conditions (BMW PR 303 - part d), the program loads presented in figure 1. In this experiment molded product was severely deformed, but cracks were absent.

1. The reaction mixture for coating molded products using the reaction injection molding, comprising at least 60 wt.% (meth)acrylates with at least two double bonds, with the proportion of at least one (meth)acrylate with three or more double bonds is at least 25 wt.% by weight of the reaction mixture, wherein the reaction mixture contains at least one photoinitiator and at least one thermal initiator.

2. The reaction mixture according to claim 1, characterized in that the reaction mixture contains at least 90 wt.% (meth)acrylates with at least two double bonds.

3. The reaction mixture according to claim 1, characterized in that the proportion of (meth)acrylates with three or more double bonds is at least 50 in the S.% by weight of the reaction mixture.

4. The reaction mixture according to claim 1, characterized in that the reaction mixture contains not more than 75 wt.% (meth)acrylate having two or less double bonds.

5. The reaction mixture according to claim 1, characterized in that the dynamic viscosity of the reaction mixture is in the range from 1 to 200 MPa·s at 25°C.

6. The reaction mixture according to claim 1, wherein the reaction mixture comprises from 0.01 wt.% up to 3 wt.% photoinitiator relative to the weight of the reaction mixture.

7. The reaction mixture according to claim 1, wherein the reaction mixture comprises from 0.03 wt.% up to 5 wt.% thermal initiator relative to the weight of the reaction mixture.

8. The reaction mixture according to claim 1, characterized in that the mass ratio between photoinitiators and thermal initiator is in the range from 20:1 to 1:5.

9. The reaction mixture according to claim 1, characterized in that the reaction mixture contains 1,6-hexanediamine, trimethylolpropane and/or pentaerythritoltetranitrate.

10. The reaction mixture according to claim 9, characterized in that the reaction mixture contains trimethylolpropane and 1,6-hexanediamine, and the mass ratio of trimethylolpropane 1.6-hexaniacinate is in the range from 5:1 to 1:5.

11. The reaction mixture according to claim 9, characterized in that the reaction mixture contains trimethylolpropane and pentaerythritoltetranitrate, p is item the mass ratio of trimethylolpropane to pentaerythritoltetranitrate is in the range from 5:1 to 1:5.

12. The reaction mixture according to claim 9, characterized in that the reaction mixture contains pentaerythritoltetranitrate and 1,6-hexanediamine, and the mass ratio of pentaerythritoltetranitrate 1.6-hexaniacinate is in the range from 5:1 to 1:5.

13. The reaction mixture according to claim 1, characterized in that the reaction mixture contains a means to facilitate sliding.

14. The reaction mixture according to one of claims 1 to 13, characterized in that the reaction mixture contains dyes, pigments, metal-based, UV stabilizers, fillers or nanomaterials.

15. A method of manufacturing a molded product with a coating, wherein the molding composition injected into the mold for injection molding and cooling to obtain a molded product, the mold for molding change in such a way that between the subject coating the surface of the molded product and the inner surface of the mold for injection molding is formed an intermediate space formed intermediate space by injection molding fill the reaction mixture according to one of claims 1 to 14 and carry out the curing of the reaction mixture first thermal path, and after heat-cured using radiation.

16. The method according to item 15, characterized in that the composition of the molding material includes at least one polymer selected the C group, comprising polymethylmethacrylate, polymethacrylate, a copolymer of styrene and Acrylonitrile, a copolymer of styrene and maleic acids and copolymers of polymethylmethacrylate.

17. The method according to item 16, characterized in that the composition of the molding material comprises at least 50 wt.% polymethylmethacrylate, polymethacrylimide and/or copolymers of polymethylmethacrylate.

18. The method according to item 15, wherein the coating thickness is in the range from 5 μm to 75 μm.

19. The method according to item 15, wherein the molding composition injected into the mold for molding at a temperature in the range from 220 to 330°C.

20. The method according to item 15, wherein prior to injecting into the intermediate space of the reaction mixture molding mass is cooled to a temperature in the range from 70 to 150°C.

21. The method according to item 15, wherein thermal curing of the reaction mixture in the mold for injection molding is carried out at a temperature in the range from 80 to 130°C.

22. The method according to one of PP-21, characterized in that the curing by radiation reaction mixture held thermal curing is carried out at a temperature in the range from 10 to 40°C.

23. The method according to item 22, characterized in that last heat curing the reaction mixture utverjdayut by irradiation with ultraviolet light.

24. Molded ed is Leah coated, includes obtained by a method of molding a molded article containing at least one polymer selected from the group comprising poly (methyl methacrylate), polymethacrylate, a copolymer of styrene and Acrylonitrile, a copolymer of styrene and maleic acids and copolymers of polymethylmethacrylate, and the coating according to one of claims 1 to 14, characterized in that the coating receives test results with lattice cut assess the strength of the coupling component at most 1, and reduce the gloss at 20° at most 10% after testing the scratch resistance by standard ASTM 1044 (12/05) (load 500 g the number of cycles 100).

25. Molded product according to paragraph 24, wherein the coating is obtained by curing the reaction mixture, which is applied to the surface of the molded product at a temperature in the range from 75 to 120°C and subjected to thermal curing.

26. Molded product according to paragraph 24, wherein the coating has a thickness ranging from 5 μm to 75 μm.

27. The moldings on p, characterized in that the coating has a thickness in the range from 10 μm to 40 μm.

28. Molded product according to paragraph 24, wherein reducing the gloss of the molded product at 20° after testing the scratch resistance according to ASTM 1044 (12/05) is at most 6%.

29. Molded product by one is from PP-28, characterized in that it is transparent, and after irradiation with a xenon lamp for 2000 h increased turbidity molded product after testing the scratch resistance according to ASTM 1044 (12/05) is at most 25%.

30. Molded product by one of PP-28, characterized in that the coating of the molded product shows a score of 0 the strength of adhesion of the test results with lattice cut.



 

Same patents:

FIELD: chemistry.

SUBSTANCE: paint with thermo-, fire-protective properties contains (wt %): binder based on acrylic (co)polymers and/or silicone resins and organosoluble polyurethanes - (20-40), filler in form of a mineral component - (10-30), antipyrene additive - (10-20), modifying additive in form of ceramic and/or glass microspheres with diameter of 20-150 mcm -(10-30) and an organic solvent - the rest. The paint composition additionally contains bentonite powder, intercalated with cobalt Co2+ ions and/or cerium Ce3+ ions in amount of 3-7 wt %.

EFFECT: invention increases stability of the formed protective paint coating to thermal-oxidative reactions, improves environmental safety, fire-resistance of the protective coating and endows said coating with bactericidal properties.

7 cl, 2 dwg, 1 tbl

FIELD: construction.

SUBSTANCE: adhesive composition includes methyl methacrylate and benzoyl peroxide. The adhesive composition additionally contains triethanolamine, epoxy resin and a marshallite filler. Using the adhesive composition makes it possible to considerably increase the depth of porous material impregnation and to improve evenness of composition hardening in concrete. The adhesive composition may be used as a protective anticorrosion coating, in repair of various concrete structures from filling small cracks to puttying large defects, and also as a filling polymer composition for porous materials.

EFFECT: increased protection of concrete surfaces.

2 tbl, 7 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing (meth)acrylic esters (F) based on alcohols having at least one carbon-carbon triple bond, characterised by that at least one alcohol having at least one carbon-carbon triple bond of formula (1) where R1 denotes hydrogen, alkyl having 1-18 carbon atoms; alkyl having 2-18 carbon atoms, aryl having 6-12 carbon atoms, cycloalkyl having 5-12 carbon atoms, interrupted, if necessary, by one or more oxygen and/or sulphur atoms and/or one or more substituted or unsubstituted amino groups, or a 5-6-member heterocycl having oxygen, nitrogen and/or sulphur atoms, wherein said residues can be substituted with aryl, alkyl, aryloxy, alkyloxy, heteroatoms/or heterocycles, respectively, and R2 denotes alkylene having 1-20 carbon atoms, cycloalkylene having 5-12 carbon atoms, arylene having 6-12 carbon atoms, or alkylene having 2-20 carbon atoms interrupted by one or more oxygen and/or sulphur atoms and/or one or more substituted or unsubstituted amino groups and/or one or more cycloalkyl groups, -(CO)-, -O(CO)O, -(NH)(CO)O-, -O(CO)(NH)-, -O(CO)- or -(CO)O, where the names of the residues can be replaced with aryl, alkyl, aryloxy, alkyloxy, heteroatoms and/or heterocycles respectively, n is a whole number from 0 to 3, preferably from 0 to 2 and more preferably from 1 to 2 and X; for each i=0 to n can be independently selected from a group comprising -CH2-CH2-O-, -CH2-CH(CH3)-O-, -CH(CH3)-CH2-O-, -CH2-C(CH3)2-O-, -C(CH3)2-CH2-O-, -CH2-CHVin-O-, -CHVin-CH2-O-, -CH2-CHPh-O- and -CHPh-CH2-O-, preferably from a group comprising -CH2-CH2-O-, -CH2-CH(CH3)-O- and -CH(CH3)-CH2-O-, and more preferably CH2-CH2-O-, where Ph denotes phenyl and Vin denotes vinyl, wherein the hydroxy groups of the alcohol are primary or secondary, esterified in the presence of at least one enzyme (E) with (meth)acrylic acid or re-esterified with at least one (meth)acrylic ester (D).

EFFECT: use of the present method enables to obtain esters of an acid based on alcohols which have carbon-carbon triple bonds with good output and low colour indices.

5 cl, 3 ex

Road marking paint // 2425076

FIELD: chemistry.

SUBSTANCE: road marking paint contains acrylic film-forming agent in form of a copolymer of n-butylmethacrylate with glycidylmethacrylate, calcite as filler, chloroparaffin CP-470 as plasticiser, toluene and ethyl acetate as an organic solvent, titanium dioxide as a pigment, an organic montmorillonite derivative Bentone SD-2 as a thickener, a dispersant in form of a mixture of natural phospholipids Soya lecithin, an anti-sedimentation agent in form of 20% solution of an organic compound in xylene M-P-A - 2000X, with the given ratio of components.

EFFECT: paint has high wear resistance of the film while retaining the rest of the characteristics.

2 tbl, 10 ex

FIELD: medicine.

SUBSTANCE: invention refers to a method of preparing a colour mass for vascular system filling in pathologic examinations which involves premixing a dye - a water-soluble acrylic colour and water in the ratio 0.9-1.1 portions to 0.18-0.21 portions to form a homogeneous mass, adding 9.7-9.9 portions of water and 0.18-0.21 portions of 96 % alcohol. It is followed with retempering and adding 9.7-9.9 portions of 96% alcohol, keeping for 12 hours and filtering.

EFFECT: improved colour mass for vascular system filling and simplified manufacturing procedure.

1 dwg, 1 ex

FIELD: construction.

SUBSTANCE: compound for road marking comprises main resins - n-butylacrylate and methyl methacrylate and hardener. Additionally it contains reactive resin on the basis of acrylic resins, hardener and accelerant of hardening reaction, containing the following components: 2-ethyl hexyacrylate, N,N-dihydroxyethyl-r-toluidine, N,N-dimethyl-r-toluidine, 2 (2-hydroxy-3,5-ditret-butylphenyl) benzotriazol, heavy hydrosulfonated oil, at the same time ratio of main resins and reactive resin is in the range from 1:3 to 3:1.

EFFECT: expansion of possibility to use compound in climatic conditions with low temperatures, which increases efficiency of marking operation with preservation of high speed of hardening.

FIELD: chemistry.

SUBSTANCE: invention relates to compositions for protective coating for window glass. The invention discloses a composition which contains a) one or more film-forming resins which contain acrylic and/or methacrylic functional fragments; b) one or more reactive diluents which contain an acrylate functional group; c) one or more compounds which promote adhesion of the composition to glass, which contain a product of a Michael reaction, having four or more siloxane groups, at least one acrylate group and a tertiary amine group; d) one or more filler substances, capable of endowing compositions with wear-resistance in solidified state; and e) one or more compounds which can react with a film-forming resin, which contain at least one acid fragment.

EFFECT: composition ensures high adhesion of the coating to adhesive substances on a structure in the absence of an undercoat.

16 cl, 5 dwg, 28 tbl, 38 ex

FIELD: chemistry.

SUBSTANCE: invention relates to impregnation and hermetisation of porous products with thermally hardened compositions based on (meth)acrylic monomers. Claimed is thermally hardened composition for impregnation and hermetisation of porous products, containing (in mass fraction): 100 (meth)acrylic monomer, 0.1-0.5 nitronitrile, 0.01-0.04 hydrohynone, 0.004-0.03 disodium salt of ethylendiaminetetraacetic acid, 0.001-0.03 2,2,6,6-tetramethyl-4-oxopiperidin-1-oxyl and 0.5-5.0 non-ionogenic emulsifying agent. Method of impregnation and hermetisation of porous products includes their vacuum processing with further impregnation under vacuum and atmospheric pressure with abovementioned composition and hardening at temperature ≥90°C. Thermally-hardened composition has higher serviceability and allows to increase productivity of impregnation and hermetisation method essentially.

EFFECT: increasing productivity of method of impregnation and hermetisation of porous products by means of thermally-hardened compositions.

2 cl, 1 tbl, 15 ex

FIELD: organic chemistry, chemical technology.

SUBSTANCE: invention relates to photoinitiating agents of phenylglyoxylic acid order used in polymerizing compositions to be subjected for hardening. Invention describes a photoinitiating agent of the formula (I): wherein Y means (C3-C12)-alkylene, butenylene, butinylene or (C4-C12)-alkylene that are broken by groups -O- or -NR2- and not following in sequence; R1 means a reactive group of the following order: -OH, -SH, -HR3R4, -(CO)-OH, -(CO)-NH2, -SO3H, -C(R5)=CR6R7, oxiranyl, -O-(CO)-NH-R8-NCO and -O-(CO)-R-(CO)-X; R2 means hydrogen atom, (C1-C4)-alkyl, (C2-C4)-hydroxyalkyl; R3 and R4 mean hydrogen atom, (C1-C4)-alkyl, (C2-C4)-hydroxyalkyl; R, R and R mean hydrogen atom or methyl; R8 means linear or branched (C4-C12)-alkylene or phenylene; R9 means linear or branched (C1-C16)-alkylene, -CH=CH-, -CH=CH-CH2-, C6-cycloalkylene, phenylene or naphthylene; X, X1 and X2 mean -OH, Cl, -OCH3 or -OC2H5. Also, invention describes a method for synthesis of a photoinitiating agent, polymerizing composition and substrate covered by its. Proposed photoinitiating agent possesses the effective introducing capacity and absence of migration in thermal treatments.

EFFECT: improved and valuable properties of agent.

13 cl, 1 tbl, 16 ex

FIELD: rocketry; production of the potting composition for armoring the charge made out of the ballistite propellant.

SUBSTANCE: the invention is pertaining to the field of rocketry and presents the potting composition for armoring the charge made out of the ballistite propellant. The potting composition includes polybutylmethacrylate, butylmethacrylate, methylmethacrylateand in the capacity of the initiator and activator of the hardening - benzoyl peroxide and dimethylaniline. At that polybutylmethacrylate is dissolved in the mixture of butylmethacrylate and methylmetacrylate. The invention ensures manufacture of the qualitative products with the required level of the physical-mechanical and adhesive properties, as well as to reduce smokiness of the gases, and to reduce temperature of the waste gases from 2200°С to 800°С.

EFFECT: the invention ensures manufacture of the qualitative products with the required level of the physical-mechanical and adhesive properties, as well as to reduce smokiness of the gases, and significantly to reduce temperature of the waste gases.

2 tbl

FIELD: chemistry.

SUBSTANCE: formulation composition contains: A) 5-95 wt % at least one radiation-curable resin, B) 5-25 wt % silicic acid, C) 0.1-10 wt % at least one adhesion promoter, D) 5-90 wt % at least one radiation-curable reactive diluent, E) 0.5-5 wt % at least one dispersant. The adhesion promoter is selected form phosphoric acid and/or phosphonic acid and/or products of reaction thereof with functionalised acrylates. The composition can additionally contain photoinitiators, pigments and additives, selected from diffusion promoting agents, delustering agents and degassing agents. The compositions are used as a primer, an intermediate layer, coating varnish and/or clear varnish, as well as for making coatings via a coil coating technique.

EFFECT: coatings have flexibility, thereby providing excellent protection of metal substrates from corrosion.

18 cl, 2 tbl, 6 ex

FIELD: chemistry.

SUBSTANCE: invention can be used in producing pigments and/or filler materials for paper, paint and plastic. The composite contains particles of an inorganic and/or organic pigment and/or filler having equivalent diameter of 0.2-100 mcm, coated at least partially with a composition containing calcium carbonate particles having equivalent diameter less than 200 nm, and binder based on copolymers containing monomers in form of one or more dicarboxylic acids and one or more monomers from a group comprising diamines, triamines, dialkanolamines or trialkanolamines. Particles of the inorganic pigment and/or filler are selected from talc, mica or mixtures thereof. Particles of the organic pigment and/or filler are selected from polyethylene, polypropylene, polyethylene terephthalate or polystyrene. To obtain the composite, particles of the pigment and/or filler are mixed with a calcium carbonate composition, mainly in form of an aqueous suspension, and binder is added and the mixture is homogenised. In another version, the binder can be added to particles of the pigment and/or filler or to the calcium carbonate composition. Calcium carbonate is ground using ball mills, jet mills, burr mills or combination thereof cyclones and sieves.

EFFECT: obtained composites have high opacity, whiteness and lustre, high capacity for printing and resistance to segregation.

57 cl, 11 dwg, 4 ex

FIELD: chemistry.

SUBSTANCE: paint with thermo-, fire-protective properties contains (wt %): binder based on acrylic (co)polymers and/or silicone resins and organosoluble polyurethanes - (20-40), filler in form of a mineral component - (10-30), antipyrene additive - (10-20), modifying additive in form of ceramic and/or glass microspheres with diameter of 20-150 mcm -(10-30) and an organic solvent - the rest. The paint composition additionally contains bentonite powder, intercalated with cobalt Co2+ ions and/or cerium Ce3+ ions in amount of 3-7 wt %.

EFFECT: invention increases stability of the formed protective paint coating to thermal-oxidative reactions, improves environmental safety, fire-resistance of the protective coating and endows said coating with bactericidal properties.

7 cl, 2 dwg, 1 tbl

FIELD: coating production.

SUBSTANCE: invention is referred to silane-based coating production method. One or several silanes are condensed with diol or polyol, then a solvent is added laced with the reagent consisting of Lewis acids or Lewis bases. The coating material derived upon that is applied to the base coat and solidified. The silanes are selected out of 3-isocyanatopropyltrimecoxysilane and isocyanatopropyltriethoxysilane which are inorganically bound in advance in the amount of no more than 1%. Water ratio in the reaction is no more than 1%. Alcohols, acetates or simple ethers are added as solvents. Delustering agents, wetting dispersers, antifoam agents, waxes, biocides, preservatives or coloring pigments are further added. The coating is applied to the base coat by hydrochemical method, particularly, by sputtering, dipping, spray flow, rolling-up, spreading, impressing, flinging, doctor knife, as well as vacuum deposition. After being applied the coating material is solidified at the temperature from the ambient one to 1200°C. The base coat consists of metal, plastic, ceramics, lacquer, fabric, textile, natural substances, such as wood or leather, glass, mineral substances or composite materials.

EFFECT: mar-proof, anticorrosion, easily cleared, fingermark-free, antireflective, non-weep, scale-protective, diffuse-barrier, radiation-protective, or as self-cleaning, antibacterial, antimicrobic, tribological or hydrophobic coating.

16 cl, 4 ex

FIELD: construction.

SUBSTANCE: adhesive composition includes methyl methacrylate and benzoyl peroxide. The adhesive composition additionally contains triethanolamine, epoxy resin and a marshallite filler. Using the adhesive composition makes it possible to considerably increase the depth of porous material impregnation and to improve evenness of composition hardening in concrete. The adhesive composition may be used as a protective anticorrosion coating, in repair of various concrete structures from filling small cracks to puttying large defects, and also as a filling polymer composition for porous materials.

EFFECT: increased protection of concrete surfaces.

2 tbl, 7 ex

FIELD: construction.

SUBSTANCE: adhesive composition includes methyl methacrylate and benzoyl peroxide. The adhesive composition additionally contains triethanolamine, epoxy resin and a marshallite filler. Using the adhesive composition makes it possible to considerably increase the depth of porous material impregnation and to improve evenness of composition hardening in concrete. The adhesive composition may be used as a protective anticorrosion coating, in repair of various concrete structures from filling small cracks to puttying large defects, and also as a filling polymer composition for porous materials.

EFFECT: increased protection of concrete surfaces.

2 tbl, 7 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing (meth)acrylic esters (F) based on alcohols having at least one carbon-carbon triple bond, characterised by that at least one alcohol having at least one carbon-carbon triple bond of formula (1) where R1 denotes hydrogen, alkyl having 1-18 carbon atoms; alkyl having 2-18 carbon atoms, aryl having 6-12 carbon atoms, cycloalkyl having 5-12 carbon atoms, interrupted, if necessary, by one or more oxygen and/or sulphur atoms and/or one or more substituted or unsubstituted amino groups, or a 5-6-member heterocycl having oxygen, nitrogen and/or sulphur atoms, wherein said residues can be substituted with aryl, alkyl, aryloxy, alkyloxy, heteroatoms/or heterocycles, respectively, and R2 denotes alkylene having 1-20 carbon atoms, cycloalkylene having 5-12 carbon atoms, arylene having 6-12 carbon atoms, or alkylene having 2-20 carbon atoms interrupted by one or more oxygen and/or sulphur atoms and/or one or more substituted or unsubstituted amino groups and/or one or more cycloalkyl groups, -(CO)-, -O(CO)O, -(NH)(CO)O-, -O(CO)(NH)-, -O(CO)- or -(CO)O, where the names of the residues can be replaced with aryl, alkyl, aryloxy, alkyloxy, heteroatoms and/or heterocycles respectively, n is a whole number from 0 to 3, preferably from 0 to 2 and more preferably from 1 to 2 and X; for each i=0 to n can be independently selected from a group comprising -CH2-CH2-O-, -CH2-CH(CH3)-O-, -CH(CH3)-CH2-O-, -CH2-C(CH3)2-O-, -C(CH3)2-CH2-O-, -CH2-CHVin-O-, -CHVin-CH2-O-, -CH2-CHPh-O- and -CHPh-CH2-O-, preferably from a group comprising -CH2-CH2-O-, -CH2-CH(CH3)-O- and -CH(CH3)-CH2-O-, and more preferably CH2-CH2-O-, where Ph denotes phenyl and Vin denotes vinyl, wherein the hydroxy groups of the alcohol are primary or secondary, esterified in the presence of at least one enzyme (E) with (meth)acrylic acid or re-esterified with at least one (meth)acrylic ester (D).

EFFECT: use of the present method enables to obtain esters of an acid based on alcohols which have carbon-carbon triple bonds with good output and low colour indices.

5 cl, 3 ex

Road marking paint // 2425076

FIELD: chemistry.

SUBSTANCE: road marking paint contains acrylic film-forming agent in form of a copolymer of n-butylmethacrylate with glycidylmethacrylate, calcite as filler, chloroparaffin CP-470 as plasticiser, toluene and ethyl acetate as an organic solvent, titanium dioxide as a pigment, an organic montmorillonite derivative Bentone SD-2 as a thickener, a dispersant in form of a mixture of natural phospholipids Soya lecithin, an anti-sedimentation agent in form of 20% solution of an organic compound in xylene M-P-A - 2000X, with the given ratio of components.

EFFECT: paint has high wear resistance of the film while retaining the rest of the characteristics.

2 tbl, 10 ex

FIELD: medicine.

SUBSTANCE: invention refers to a method of preparing a colour mass for vascular system filling in pathologic examinations which involves premixing a dye - a water-soluble acrylic colour and water in the ratio 0.9-1.1 portions to 0.18-0.21 portions to form a homogeneous mass, adding 9.7-9.9 portions of water and 0.18-0.21 portions of 96 % alcohol. It is followed with retempering and adding 9.7-9.9 portions of 96% alcohol, keeping for 12 hours and filtering.

EFFECT: improved colour mass for vascular system filling and simplified manufacturing procedure.

1 dwg, 1 ex

FIELD: construction.

SUBSTANCE: compound for road marking comprises main resins - n-butylacrylate and methyl methacrylate and hardener. Additionally it contains reactive resin on the basis of acrylic resins, hardener and accelerant of hardening reaction, containing the following components: 2-ethyl hexyacrylate, N,N-dihydroxyethyl-r-toluidine, N,N-dimethyl-r-toluidine, 2 (2-hydroxy-3,5-ditret-butylphenyl) benzotriazol, heavy hydrosulfonated oil, at the same time ratio of main resins and reactive resin is in the range from 1:3 to 3:1.

EFFECT: expansion of possibility to use compound in climatic conditions with low temperatures, which increases efficiency of marking operation with preservation of high speed of hardening.

FIELD: chemistry.

SUBSTANCE: method of producing electroconductive elastomeric composite material based on general or special-purpose rubber involves mixing 100 pts.wt rubber, 10-13 pts.wt vulcanising group, 20-25 pts.wt plasticiser, 10-25 pts.wt graphite and 25-60 pts.wt electroconductive technical carbon. Pressure curing is then carried out. After curing, the material is subjected to swelling in an organic solvent until achieving equilibrium swelling index and then held for 1 hour at 100-120°C after complete removal of solvent.

EFFECT: disclosed material has high electroconductivity.

2 tbl, 26 ex

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