Curable polymer composition


FIELD: chemistry.

SUBSTANCE: curable polymer composition contains a linker which contains at least one organic polymer with silane groups, having molecular weight higher than 1000, and selected from a group of polymers consisting of aromatic or aliphatic polyurethanes which are partially or completely fixed with silane, polyethers and polyesters, polycarbonates, polyacrylate, polybutadiene, polyether with hydrolysable silane groups and mixtures thereof, at least one reactive polyorganosiloxane polymer having molecular weight from about 1000 to about 200000 and, optionally, an organic polymer without functional silane groups.

EFFECT: improved weather resistance.

15 cl, 4 ex

 

The technical field to which the invention relates.

The present invention relates to new polymeric compositions for making high-performance adhesive, coatings, sealants, and compounds for extrusion.

The level of technology

As a rule, high adhesive compositions, coating compositions for extrusion and sealants based on compositions of organic polymers or compositions containing silicone polymers. Generally, products from organic polymers differ worst resistance to weathering, compared with silicon-based products. Usually products of silicone polymers stronger better get dirty and stained, in comparison with organic polymers. The latter are characterized by a tendency to relatively poor adhesion to some substrates, and can be more difficult to paint. Organic and silicone polymers do not mix and, thus, compositions containing the polymers of both types, there is a separation of phases. There is a need for the development of new polymer compositions for the preparation of adhesive formulations (adhesives, coatings and fillers.

Disclosure of inventions

In the present application is described polymeric composition for preparing sealants, coatings, adhesive compositions and compositions for extrusion with lucchino resistance to weathering and/or performance. The polymer compositions of the present invention contain from 1% to 99% by weight (by weight of polymer) organic polymer (here it will be called a composition for compatibility), comprising silane groups, from 1% to 45% by weight (by weight of polymer) of a reactive or non-reactive organopolysiloxane polymer and from 0 to 98% by weight (by weight of polymer) organic polymer not containing silane groups. In accordance with some aspects, the composition for compatibility is an organic polymer, the ends of which are partially or fully closed wilanowie groups. The polymer compositions of the present invention is based, at least in part, made by the authors of the discovery, according to which sealants based on polymer compositions containing silicone polymer and organic polymer with wilanowie groups are not separated into phases as easily as the composition without the above formulations for compatibility.

After curing the polymer composition of the invention can be used as coatings, sealants (fillers) and adhesive compositions. These polymeric compositions may also contain other additives that modify the properties of such coatings, sealants and adhesive compositions.

Coatings, sealants (fillers) and adhesive compositions of the present invention can not only is th a curable compositions of one or two components. Coatings, sealants (fillers) and adhesive compositions of the present invention can also be cured by heating or at room temperature. Sealants of the present invention may be an extrusion system or systems, cured in situ.

Other objects and advantages of the invention are partially reviewed in the following description, and in part clearly follow from it, or may be learned during practical use of the invention. The objects and advantages of the invention can be implemented by means of the elements and their combinations, referred to in the attached claims.

It should be understood that both the foregoing summary, as well as the subsequent detailed description of the invention are only for example and explanation and do not limit the invention set forth in the formula.

The implementation of the invention

Below the present invention is described in more detail. However, the invention can be implemented in various forms; one should not assume that it is limited to the following aspects. However, aspects are designed to make the description of thorough and complete, and to fully convey the specialists scope of the present invention.

If not stated otherwise, all technical and scientific terms here correspond to atomu and understandable to the expert of the area, belongs to the invention. Terminology in the description of the invention is used only to describe specific aspects and do not limit the scope of the invention. In the description and in the accompanying formula a single noun forms include plural forms unless the context clearly to the contrary. Everything mentioned here publications, patent applications, patents, and other references are expressly incorporated by reference in its entirety.

Unless otherwise stated, it should be understood that all numbers expressing quantities of ingredients, reaction conditions, and so on, all of the examples are expressed by the term "approximately". Accordingly, unless otherwise specified, all numeric parameters in the following description and the formula are approximations that can vary depending on what properties you want to achieve with the present invention. In extreme cases (this is not an attempt to limit the application of the doctrine of equivalents to the scope of the claims), numerical parameters, you can limit the number of significant digits in line with the normal rules of rounding.

Notwithstanding that the numerical ranges and parameters describing the broadest scope of the invention are approximations, the numerical values of the specific examples are as accurate as it is in the can. However, any numerical value must contain some error resulting from standard deviations techniques appropriate measurements. Each numerical interval of the present description includes all narrower intervals falling within this wider interval, as if these shorter intervals would be explicitly described.

Polymeric composition

The polymer compositions of the present invention contain from 1% to 99% by weight of at least one organic polymer comprising silane groups, i.e., composition for compatibility, and from 1% to 45% by weight of at least one reactive or non-reactive organopolysiloxane polymer, preferably reactive organopolysiloxane. In accordance with some aspects, silane groups are latches, that is, the composition for compatibility is an organic polymer, the ends of which are partially or fully closed wilanowie groups. In accordance with other aspects, silane groups included in the frame structure for compatibility or "hang"that is attached to the frame of the composition. The molecular weight of the compounds for the compatibility of the present invention exceeds 1000 g/mol, preferably less than 10,000 g/mol. These polymer compositions can also contain 0 to 98% in the su organic polymer, not containing silane groups.

Composition for compatibility and organic polymer without Milanovich groups can be a homopolymer, copolymer, multipolymer or their mixture. Composition for compatibility and organic polymer without Milanovich groups can be selected from among aromatic and aliphatic urethane polymers, polyether and polyester, acrylic polymers, polystyrene, stranovyh butadiene polymers, polybutadiene and butyl rubber, and any mixtures or combinations. The organic polymers of the present compositions can be a variety of frameworks, such as polyether and polyester, polyacrylate, polybutadiene, polycarbonate, or consisting of any mixture of such frameworks. Moreover, organic polymers of the present compositions may also contain other attached functional groups, such as acrylates, amides, maleic acid anhydride, etc.

In accordance with certain aspects of the present polymeric composition, at least one of the compounds for compatibility represents an aromatic or aliphatic polyurethane polymer, partially or fully locked (blocked) wilanowie groups. In accordance with some aspects, at least one of the compounds for compatibility is subaponeurotic polymer, fixed wilanowie groups and other "plugs". Examples of other suitable plugs include, but are not limited to, alcohols, monomers, polymers containing epoxy, hydroxy and mercapto functional groups, or combinations thereof. Polyurethane polymer with wilanowie plugs can be obtained in two stages: (a) interaction diisocyanate connection with the polyol with the formation of the intermediate, and the intermediate is selected from isocyanate or hydroxyl-terminated polyurethane prepolymers; and (b) solirovanie intermediate. Preferably, if the intermediate siliouette organic functional silane with one or more hydrolyzable groups.

Suitable hydroxy-terminated polymeric materials for the preparation of polyurethane polymers include, but are not limited to, di-, tri - and Tetra-functional polyols, including polyols from polyethers, polyols of polyesters, acrylic polyols and polyols containing two or more hydroxyl groups and straight or branched hydrocarbons.

Suitable diols and trioli from polyether diols include or trioli polyethylene ether, polypropylene ether polibutilenovye ether, polytetramethylene ether, and block copolymers such diols and triodes.

Suitable Hydra is XI-terminated polyesters include any hydroxy-terminated polyesters, made from polienovykh acids or anhydrides (for example, of adipic acid and flowage anhydride), and polyols in which the hydroxyl functionality of complex polyester prepolymer more than 2, more preferably 2,3. Polylactam with hydroxyl groups are also suitable for the preparation of prepolymer, in particular, polycaprolactone diol and triol.

Suitable acrylic polyols include hydroxyl-terminated polyacrylate. The acrylates include, but are not limited to, butyl acrylate, methyl acrylate, methyl methacrylate, an acrylate, 2-ethyl hexyl acrylate, or a mixture thereof. Suitable polyols containing two or more hydroxyl groups, and straight or branched hydrocarbon chain include functionalized by hydroxyl polybutadiene. Other suitable polyols include the polycarbonates with hydroxyl groups.

Preferably, the average molecular weight of the polyol was in the range of from 500 to 18,000. If the polymer used for the manufacture of sealants, it is preferable that the average molecular weight of the polyol was in the range from 2000 to 8000. If the polymer used for the manufacture of coatings or adhesive compositions, it is preferable that the average molecular weight of the polyol was in the range of from 500 to 4000.

Isocyanates, interacting with hydroxy-terminated aliminum frame, are organic isocyanates with one or more isocyanate groups or a mixture of such organic isocyanates. The isocyanates may be aromatic or preferably aliphatic isocyanates. Examples of suitable aromatic di - or triisocyanate include a pair,couple',pair-triisocyanurate, pair,couple'-diisocyanatobutane, naphthalene-1,5-diisocyanate, 2,4-colorvision, 2,6-colorvision and mixtures thereof. Examples of preferred aliphatic isocyanates - isophorondiisocyanate, dicyclohexylmethane-4,4'-diisocyanate and mixtures thereof.

The polyurethane polymer can be obtained by mixing the hydroxy-terminated polyester and organic isocyanate at a temperature and ambient pressure, although the reaction rate is greatly increased if the temperature of the mixture to increase, for example, to interval 60-100°C. to ensure that the resulting polyurethane polymer contains NCO HE or terminal groups, using a stoichiometric excess of isocyanate or polyol.

In accordance with some aspects, the polymer with terminal NCO groups are then reacted with wilanowie fixing agents to block wilanowie groups from 50 to 100% of the NCO groups. Examples of suitable Milanovich fixing agents include, but are not limited to, silanes corresponding to four the OLE I

H-NR1-R2-Si(OR3)2(R4)

where R1corresponds to hydrogen, substituted aliphatic, cycloaliphatic and/or aromatic hydrocarbon radical containing from 1 to 10 carbon atoms, the second residue is R2-Si(OR3)2(R4or-CHR5-CHR6COOR7where R5and R6represent N or C1-6organic group,

and R7means1-10organic group,

R2corresponds to a linear or branched Allenova to radical containing from 1 to 8 carbon atoms,

R3corresponds to the C1-6alkyl group,

R4represents-CH3, -CH2CH3or or3.

Examples of suitable aminosilanes corresponding to formula I include N-phenylaminopyrimidine, N-ethylenediaminetetramethylene, gamma aminopropyltrimethoxysilane, gamma aminopropyltriethoxysilane and the reaction product of aminosilane (such as gamma aminopropyltrimethoxysilane, gamma aminopropyltriethoxysilane, gamma aminopropyltrimethoxysilane) acrylic monomer such as an acrylate, butyl acrylate, 2-ethyl hexyl acrylate, methyl acrylate, methyl methacrylate and goldaracena).

Examples of other suitable silanes include mercaptomerin, the reaction product of mercaptoethane with monapo the sid and the reaction product of epoxysilane with secondary amines and silanes of the following structure:

OCN-R2-Si(OR3)2(R4), where R2, R3and R4such as described above.

Methods of obtaining polyurethane polymers and sidirovanii polyurethane polymers are well known (see, for example, US Pat. Nos. 3627722, 3632557, 3979344 and 4222925 included here by reference).

In accordance with some aspects, the resulting partially silicony polyurethane polymer is then associated with a sufficient number of spatial uncomplicated aromatic or aliphatic alcohol to lock or fix unreacted, i.e. neilyoungi, NCO group. Examples of suitable aliphatic alcohols include, but are not limited to, methanol, ethanol, isopropanol, butanol. Preferably, the molecular weight aromatic alcohol was less than 200. Examples of suitable aromatic alcohols include phenol, 3-methoxyphenol, 4-methoxyphenol, Nonylphenol, metacresol, paracresol, 4-chlorophenol, meta-hydroxybenzaldehyde, ortho-hydroxybenzaldehyde, para-hydroxybenzaldehyde, hydroquinone, 1-hydroxy-2-propanone, 3-hydroxyacetophenone and 4-hydroxyacetophenone. Partially fixed wilanowie groups of the polyurethane polymer 90 minutes interacts with the aromatic alcohol at a temperature of 80°C with the formation of compositions containing polyurethane prepolymer fixed power is new and aromatic alcohol groups, and an excess of aromatic alcohol.

The polymer composition may also contain a desiccant, which can be added upon completion of the reaction. Examples of sorbents suitable for inclusion in compositions of the prepolymers are VINYLTRIMETHOXYSILANE, methyltrimethoxysilane, hexamethyldisilazane, paratoluenesulfonyl (PTSI), colorvision (TDI), diphenylmethanediisocyanate (MDI)and polymeric MDI. The moisture content in the polymer composition, preferably ranging from 0.1 to 10%, more preferably from 0.2 to 3%.

In accordance with some aspects, the polymeric compositions of the present invention, at least one of the compounds for compatibility is silicony allyl-terminated linear or branched simple polyester. The skeleton of such a polyester may contain other functional groups, such kanakalatha, amides, maleic anhydride, etc. are the Terminal ends of the polymer can be partially or fully closed (fixed) or wilanowie groups, or a combination of Milanovich groups and other retention groups. Silicony allyl-terminated simple polyester receive in response vinilli-terminated polyol with a silane having the functionality of the hydride. Preferably, if such a silane selected from the group consisting of treat cicilan, trimethoxysilane, metildigoxin, metaldimension and combinations thereof.

Another suitable composition for compatibility is reactive silicony polyol. This polyol may be selected from polyether and polyester, polyacrylate, polybutadiene, polycarbonate, etc. Solirovanie can be performed as described above.

Composition for compatibility can be a simple polyester with silicone functional groups. Preferably, if the organic polymer is a simple polyester with silicone functional groups, these groups are hydrolyzable wilanowie groups. The molecular weight of the preferred polyether silicone functional groups is in the range from about 2000 to 50,000 g/mol.

Organopolysiloxane from the composition of the present invention may be a nonreactive organopolysiloxane, i.e. one which does not contain reactive functional groups. In accordance with other aspects, organopolysiloxane is a reactive organopolysiloxane containing reactive functional groups, preferably two reactive functional groups on the polymer chain, preferably in its terminal positions, that is, preferably, if the reactive functional which social groups are terminal groups. Suitable for the present invention organopolysiloxane include, but are not limited to, those substances which contain condensed functional group such as hydroxyl group or hydrolyzable group, such as related through the silicon alkoxygroup, alloctype, ketoxime, amino, aminogroup, aminochrome, allinoneruby etc. Reactive functional group can be selected from hydroxyl, alkoxy, silicon-alkoxy, acyloxy, ketoxime, amino, amido, aminoxy, alkenone, alkenyl or exigrep or any combination thereof. The reactive functional group can be an end group, side hung group or any combination of them. In accordance with some aspects, the molecular weight of the preferred organopolysiloxanes of the present invention is in the range from 20000 to 100000 g/mol.

In accordance with one aspect, the reactive organopolysiloxane polymer corresponds to the formula:

where R1and R2independently of one another represent alkyl containing 1 to 8 carbon atoms, preferably from 1 to 4 carbon atoms, preferably methyl, or aromatic (as well as substituted aromatic group containing from 6 to 10 carbon atoms, preferably phenyl, value pairs is m "n" such that the average molecular weight of organopolysiloxane is in the range from about 10000 to 200000, preferably from about 20000 to 100000 g/mol. It should be understood that the described polymer also contains, as mentioned above, two or more reactive functional group (X). Functional groups can independently be represented by IT, OR3or N(R4)2Enoki, acyloxy, oximo or aminoxy, and these groups may contain substituents at any substitutable position, for example

where the substituents from R3to R14independently of one another represent alkyl or cycloalkyl containing from about 1 to 8 carbon atoms.

In accordance with one aspect, the reactive organopolysiloxane polymer compositions of the present invention can be represented as follows:

One or more R groups, independently, represent alkyl containing 1 to 8 carbon atoms, or aromatic (alkylaromatics) radical containing from 6 to 20 carbon atoms and possibly containing one or more functional groups such as amine, hydroxyl, alkene, alkoxy, etc. the Number of functional groups, that is, m represents 1, 2 or 3.

The reactive functional group (X) may be represented by IT, OR, N(R'), Enoki, acyloxy, oximo, aminoxy or amido, and such a functional group may contain substituents, R', at any substitutable position on carbon or nitrogen. These substituents selected from the group consisting of alkyl with 1-8 carbon atoms, an aromatic or alkylaromatic radical with 6 to 20 carbon atoms, and the group R' may optionally contain attached to it one or more functional group such as amine, hydroxyl, etc. Organopolysiloxane liquid may also contain a mixture of two or more different polysiloxanes and/or organopolysiloxanes with different molecular weights. In General, polysiloxane represent viscous fluids and these fluids are offered by several manufacturers of products made of silicone, such as Wacker Corporation, General Electric, Dow Corning, and Rhone-Poulenc.

In accordance with another aspect, the polymer composition of the present invention contains the non-reactive organopolysiloxane, i.e. organopolysiloxane without functional groups. Nonreactive organopolysiloxane can be represented as follows:

where R1, R2and R3independently of one another represent alkyl containing 1 to 8 carbon atoms, preferably from 1 to 4 carbon atoms, preferably methyl, or aromaticas is (as well as substituted aromatic group, containing from 6 to 10 carbon atoms, preferably phenyl, and the value of the parameter "n" such that the average molecular weight of organopolysiloxane is in the range from about 100 to 100,000, preferably from about 3000 to 50000 g/mol.

In order to prepare a polymer composition of the present invention, in the General case, you need to mix the composition for compatibility, organopolysiloxane polymer and, optionally, an organic polymer that does not contain Milanovich groups.

Adhesive compositions, coatings and sealants

Compositions of the present invention for use as sealants, adhesive and coatings containing the polymer composition of the present invention. In accordance with some aspects, sealants, adhesive compositions and coatings also contain silicone crosslinker (the stitching). Silicone composition used in the adhesive compositions, sealants and coatings of the present invention may be selected from a number of substances such as oximes, alkoxysilane, amoxicillinamoxicillin, aminosilane, aminosilane, amoxicilina, tetraethoxysilane, methyltrimethoxysilane, VINYLTRIMETHOXYSILANE, glycidoxypropyltrimethoxysilane, vinyltriethoxysilane, methyltriethoxysilane, methyldicyclohexylamine, methyltrioctylammonium, catalysts, condenses the traditional curing, and combinations thereof. Preferred Joksimovi knitting include VINYLTRIMETHOXYSILANE, methyltrimethoxysilane and combinations thereof. Composition for compatibility contains silyl-terminal groups, which can react vulcanization system functional silicone crosslinking associated with reactive organopolysiloxane polymer. Alternatively, the composition for compatibility can generate vzaimopronikayut mesh structure with organopolysiloxanes. Sealant, coating or adhesive compositions of the present invention may also include a plasticizer, an adhesion promoter, a firming agent, a fluidity modifier, extender chain, UV stabilizer, a catalyst, traps and/or surface modifier, such as wax, minivolume, glass, plastic or ceramic balls, etc.

Typically, the adhesive compositions, coatings and sealants of the present invention utverjdayut the influence of moisture or special curing catalyst when heated or without him. Can be used as a traditional one-component and two-component system. In the first case, organopolysiloxane make in connection with alkoxy, oximo, Enoki, amido, amino or acetoxy-blocking group by methods well known in the relevant field and described in the literature. Can the be used conventional condensation catalysts, such as ORGANOTIN compounds, for example, dibutyltindilaurate, dibutylaminoethanol, dimethylamino-2-ethylhexanoate or dimethylhydroxylamine; used also technologicheskie connection.

Blocked-curable one-component system can also be described here contain cross-linking agents. In dvukhkomponentnoi curing system cross-linking agents, such as multifunctional alkoxysilane or their oligomers, and the catalysts are stored separately from organopolysiloxanes before the start of the reaction. Usually the amount of catalyst in dvukhkomponentnoi system more than one component. Such curing systems are well known in the literature (see, for example, the work of Maurice Morton, et al, Rubber Technology, 3rd Ed., pp.406-407, (1987), fully incorporated here by reference). In the case of two-component curing systems two-component curing agent can cure at room temperature or at its rising.

Although large amounts of conventional crosslinking agents, preferred are Joksimovi and alkoxy-crosslinking, such as, for example, VINYLTRIMETHOXYSILANE and methyltrimethoxysilane and alkoxysilane, such as methyltrimethoxysilane and VINYLTRIMETHOXYSILANE. For example, methyltrimethoxysilane available commercially under the trademark A-1630, and Vinyltronic cicilan - under the trademark A-171, a supplier in both cases is General Electric company-OSI Specialties. Honeywell Corporation offers methyltrimethoxysilane (MOS) under the brand name OS-1000, VINYLTRIMETHOXYSILANE - under the brand name OS-2000. Acceptable and other cross-linking compounds (agents), such as alkoxysilane, amoxicillinamoxicillin, aminosilane, aminosilane, amoxicilina and the like, as well as tetraethoxysilane, glycidoxypropyltrimethoxysilane, vinyltriethoxysilane, methyltriethoxysilane, methyldicyclohexylamine and methyltrioctylammonium. Also used a mixture of cross-linking. The amount of crosslinking agent is usually in the range from about 0.2 to 20 weight parts, preferably from about 1 to 10 weight parts, preferably from about 1.5 to about 6.5 weight parts per 100 weight parts of the specified copolymer-organopolysiloxane. Crosslinking curing may also be in conjunction with alkenylamine functional organopolysiloxane polymers, and they can pre-react with polyorganosiloxane.

Knitting is administered in amounts conventionally used to obtain a curable silicone elastomer compositions. Competent professionals will be able to determine the required amount of crosslinking agents is to cure at room or elevated temperatures. The target number depends on the selected cross-linking agent and the desired properties of the cured elastomer, the competent person can easily calculate this value.

A mixture of polyorganosiloxane and stitching usually cures at room temperature under the action of moisture, however, it is sometimes desirable to accelerate the curing, that is to reduce the curing time of the composition. In such cases, you can use the catalyst. Preferred catalysts include metal salts and carboxylic acids, for example, dibutyltindilaurate, dibutylaminoethanol, dibutylamino-bis(acetylacetonate) and dimethylamide-2-ethylhexanoate, technologicheskie compounds such as tetrabutyltin, Tetra-n-propertythat, diisopropoxide(ethoxyacetylene)titanate and bis(acetylacetone)diisopropylidene. Alternatively, in addition to or instead of systems cured at room temperature, it is possible to apply a thermally curable materials.

In accordance with certain aspects, sealant, coating or adhesive composition may contain a plasticizer. The average molecular weight of the plasticizer is usually from about 100 to 800, and preferably from 200 to 400. Preferably, if the boiling point of the plasticizer at atmospheric pressure exceeds 100°C. Predpochtitel the diversified plasticizers are organic oils, used as fillers for silicone, esters, phthalates, dibenzoates, phosphates and adipates. Examples of organic oils, used as fillers for silicone, include aliphatic hydrocarbon oils and aromatic hydrocarbon oils such as alkylbenzene. Examples of esters phthalate - dibutyl phthalate, dioctylphthalate, dimethylphthalate, diisodecylphthalate, butylbenzylphthalate, tecknolosical, C7benzyl phthalate and C9benzylphthalate. Examples of esters of dibenzoate are dipropyleneglycol dibenzoate, polypropylenglycol dibenzoate, diethylene glycol and triethylenemelamine. Examples of esters of adipate are dioctyladipate, ditridecyl and dealkylation. Examples of phosphate esters are tricresylphosphate, trioctylphosphine, triphenyl and tert-butylphenylphosphine. Other suitable plasticizers are, for example, can be terephtalate, such as 1,4-benzodioxole, and trimellitate, such as 1,2,4-benzodioxole. Suitable for these purposes butylbenzylphthalate, ester phthalate and butyl benzyl alcohols, commercially available under the name Santicizer 160.

To hermetics, coating and curing the compositions of the present invention can also add an adhesion promoter. The person skilled in the art will easily be able to determine the required amounts of the adhesion promoter. Generally, the amount of adhesion promoter in the sealant composition is in the range from about 0 to 10, preferably from 1 to 8, preferably from 2 to 6 and more preferably from 1.5 to 3 weight parts per 100 parts of the organosilicon polymer.

The appropriate class of adhesion promoters are silanes with the following functionality: aminoalkyl, mercaptoethyl, breithecker, carboxy, acrylate and isocyanurate. Examples of suitable adhesion promoters are mercaptopropionylglycine, N-ethylenediaminetetramethylene, glycidoxypropyltrimethoxysilane, aminopropyltriethoxysilane, aminopropyltrimethoxysilane, aminoethylaminomethyl, ureidopropionic, bis-γ-triethoxysilylpropyl, 1,3,5-Tris-γ-trimethoxypropylsilane, bis-γ-triethoxysilylpropyl and fumarate, and γ-methacryloxypropyltrimethoxysilane.

In sealants and adhesive compositions of the present invention can be entered reinforcing agents. The number of such agents is usually in the range from about 0 to 250, preferably from 30 to 200 weight parts per 100 parts of polymer.

Reinforcing agents increase the tensile strength curing sealant and reduce sagging poterjannogo sealant. Besides, a firming agent functions as Textra is. Such reinforcing agents are finely divided particles and include traditionally used as reinforcing agents and polyacrilamide". Generally, a particle size of less than about 10 microns, preferably about 5 μm or less, more preferably about 0.1 μm or less. Suitable reinforcing agents include hydrophobic treated silica fume, for example TS 720 production Cabot Corporation or R-972 production Degussa Corporation, hydrophobic precipitated calcium carbonates, talc, aluminum silicate, zinc oxide, powdered polyvinyl chloride, as well as soft acrylates, for example, described in US patent No. 6403711 B1, which is incorporated here by reference. The sealant composition can include other ingredients in amounts approximately to 20 weight parts, preferably from about 0.01 to 15 weight parts per 100 parts of copolymer and organopolysiloxane. Such ingredients include fungicides. Moreover, can be used such fillers, such as natural calcium carbonate and diatomaceous earth. Such fillers have a minimum strength and thixotropic effect, or not have them at all.

UV stabilizers can also be added to hermetics and adhesive compositions of the present invention. Pigments and dyes such as titanium dioxide, iron oxide, is Erny coal, can additionally be used to change the color of the sealant and/or can act as a stabilizer of ultraviolet radiation. You can also add inhibitors LTV and amicosante.

Sealant in the uncured state may also contain solvents, such as organic solvents to reduce the viscosity.

The application of sealants and coatings

Sealants and adhesive compositions can be used for insulation and bonding of structural elements of buildings, highways, bridges, rails, trailers, buses, Kamberov, hire, support structures, Windows, etc. of the Composition of the present invention allow, for example, to isolate or to join dissimilar materials, including cement-containing products, metals, plastic, glass, materials EIFS, vinyl, painted metals, glass coatings, Kynar, marble, granite and brick. To apply sealant suitable standard equipment such as a syringe for the grout or the pump.

Compositions intended for coating, can be applied to the surface by spraying or pouring on her, and then distributed and aligned over the entire surface with a roller or other similar device.

Examples

Described compositions can be made using conventional equipment for) the Oia, such as an extruder with two screws move the console or mixer with variable containers.

Example 1

wt.%
1. Polyurethane polymer, fixed silane and aromatic alcohol27,86
2. Terminated by silanol dimethylpolysiloxane with a viscosity of 80,000 MPa·s5
3. Terminated by silanol dimethylpolysiloxane with a viscosity of 20,000 MPa·s5
4. Organic plasticizer9
5. White ink pasta6,5
6. Finely divided precipitated calcium carbonate41
7. Agent to control the fluidity0,5
8. Microsilica0,5
9. UV stabilizer0,4
10. Hexamethyldisilazane1
11. VINYLTRIMETHOXYSILANE1
12. Methyltrimethoxysilane0,8
13. VINYLTRIMETHOXYSILANE0,8
14. Aminopropyltrimethoxysilane0,1
15. N-ethylenediaminetetramethylene0,5
16. The diacetate dibutylamine0,04

In this example, about 26 wt.% (of the total weight of the polymer) of the silicone polymer used to get srednekamennogo sealant. The organic polymer includes a polyurethane polymer that is fixed by a silane and an aromatic alcohol. The curing time of the composition before otlipaniya is 180 minutes, and then another 60 minutes, the composition can be subjected to mechanical processing. Hardness shore a of about 20. Sealant more than 10,000 hours was tested for resistance to weathering in the installation of Xenon Arc weatherometer (weatherometer), and no significant changes in the surface were found.

Example 2

1. Polyurethane polymer, fixed silane and aromatic alcoholwt.%
27,86
2. The terminology is new with silanol dimethylpolysiloxane viscosity of 80,000 MPa·s 10
3. Terminated by silanol dimethylpolysiloxane viscosity of 20,000 MPa·s10
4. White ink pasta6,5
5. Finely divided precipitated calcium carbonate40
6. Agent to control the fluidity0,5
7. Microsilica0,5
8. UV stabilizer0,4
9. Hexamethyldisilazane1
10 VINYLTRIMETHOXYSILANE1
11. Methyltrimethoxysilane0,8
12. Methyltrimethoxysilane0,8
13. Aminopropyltrimethoxysilane0,1
14. N-ethylenediaminetetramethylene0,5
15. The diacetate dibutylamine0,04

In this example, about 42 wt.% (of the total weight of the polymer) silicone polim the RA used to receive sealant fast curing. The organic polymer includes a polyurethane polymer that is fixed by a silane and an aromatic alcohol. The curing time of the composition before otlipaniya is 100 minutes and then another 30 minutes, the composition can be subjected to mechanical processing. Hardness shore a of about 20. Sealant more than 10,000 hours was tested for resistance to weathering in the installation of Xenon Arc weatherometer (weatherometer), and no significant changes in the surface were found.

Example 3

wt.%
1. Polyurethane polymer, fixed silane and aromatic alcohol27,12
2. Trimethylsiloxy-terminated the polydimethylsiloxane with a viscosity of 1000 MPa·s6
3. Organic plasticizer10
4. White ink pasta6,5
5. Finely divided precipitated calcium carbonate40
6. Finely ground natural calcium carbonate7
7. agent to control the fluidity 0,5
8. Microsilica0,5
9. UV stabilizer0,4
10. Hexamethyldisilazane0,2
11. VINYLTRIMETHOXYSILANE1,1
12. Aminopropyltrimethoxysilane0,1
13. N-ethylenediaminetetramethylene0,5
14. The diacetate dibutylamine0,08

In this example, to obtain a sealant used about 6 wt.% (of the total weight of the polymer) non-reactive silicone polymer. The organic polymer includes a polyurethane polymer that is fixed by a silane and an aromatic alcohol. The curing time of the composition before otlipaniya is 120 minutes, and then another 40 minutes, the composition can be subjected to mechanical processing. Hardness shore a of about 20. The sealant did not show any signs of staining on marble.

Example 4

wt.%
1. Polyurethane polymer, fixed silane and aromatizes the m alcohol 2,82
2. Terminated by silanol dimethylpolysiloxane viscosity of 20,000 MPa·s2,82
3. VINYLTRIMETHOXYSILANE0,19
4. Polyvinyl chloride16,45
5. Organic plasticizer19,95
6. Color ink pasta2,95
7. Fungicide0,04
8. UV stabilizer0,43
9. Calcium oxide1,90
10. Calcium carbonate18,32
11. Xylen40,77
12. White spirits4,2
13. NCO-terminated urethane prepolymer26,2
14. Glycidoxypropyltrimethoxysilane0,22
15. Hardener OZ2,43
16. Dimeric acid 0,31

In this example, from a 8.9 wt.% (of the total weight of the polymer) of the silicone polymer of 8.9 wt.% (of the total weight of the polymer) of the polyurethane polymer, fixed silane and an aromatic alcohol, and 82.3% of NCO-terminated urethane prepolymer received sealant without separation of phases.

The examples are intended for illustration only and do not limit the scope of the invention.

1. Curable polymeric composition comprising the same time, containing at least one organic polymer with wilanowie groups, having a molecular weight of more than 1000 and selected from the group of polymers consisting of aromatic or aliphatic polyurethanes, partially or completely fixed by silane selected from the group of silanes comprising silane structural formula I
H-NR1-R2-Si(OR3)2(R4),
where R1corresponds to hydrogen, substituted aliphatic, cycloaliphatic and/or aromatic hydrocarbon radical containing from 1 to 10 carbon atoms, the second residue is R2-Si(OR3)2(R4or-CHR5-CHR6COOR7where R5and R6represent N or C1-6organic group,
and R7means1-10organic group,
R2corresponds to a linear or branched Allenova RA is ikulu, containing from 1 to 8 carbon atoms,
R3corresponds to the C1-6alkyl group,
R4represents-CH3, -CH2CH3or or3mercaptomerin, the reaction product of mercaptoethane with monoepoxides, the reaction product of epoxysilane with a secondary amine and silane following structural formula:
OCN-R2-Si(OR3)2(R4),
where R2, R3and R4such as described above,
simple and polyesters, polycarbonate, polyacrylate, polybutadiene, polyether with hydrolyzable wilanowie groups and mixtures thereof, at least one reactive organopolysiloxane polymer having a molecular weight from about 10,000 to about 200,000, selected from the group of reactive organopolysiloxanes, including reactive organopolysiloxanes the polymer of structural formula II

where R1and R2independently of one another represent alkyl containing 1 to 8 carbon atoms, or an aromatic group containing from 6 to 10 carbon atoms, and X is a functional group independently selected from substituted or unsubstituted HE, OR3N(R4)2,

where R3-R14independently of one another denote alkyl or cycloalkyl containing from about to 8 carbon atoms, "m" is at least 2, n such that the average molecular weight of organopolysiloxane is in the range from about 20000 to 100000 g/mol, and reactive organopolysiloxanes the polymer of structural formula III

where at least one R group independently represents alkyl containing from 1 to 8 carbon atoms, or aromatic, or alkyl-aromatic radical containing from 6 to 20 carbon atoms, and at least one group X is a HE, OR', N(R'), Enoki, acyloxy, oximo, aminoxy or amido, where R' is selected from the group of substituents including alkyl with 1-8 carbon atoms, an aromatic or alkyl-aromatic radical with 6 to 20 carbon atoms and R' may optionally contain at least one functional group selected from amino and hydroxyl, m is 1, 2 or 3, and at least one organic polymer without Milanovich groups, having a molecular weight more than 1000 in the following ratio, wt.% the total weight of the polymer:

the part-time1÷99;
reactive organopolysiloxane polymer1÷45;
organic polymer without Milanovich groups 0÷98

2. The composition according to claim 1, in which a simple ether is silicony allyl-terminated simple polyester.

3. The composition according to claim 1 or 2, in which the part-time includes polyurethane.

4. The composition according to claim 3, in which the polyurethane is obtained by reaction of NCO-terminated polyurethane with celanova fixing agent, with the formation of polyurethane, having from 50 to 100% functionalized by silane NCO-groups.

5. The composition according to claim 4, in which the remaining neilyoungi NCO-groups is introduced into reaction with spatial uncomplicated aromatic or aliphatic alcohol to commit.

6. The composition according to claim 1, in which the part-time includes silicony allyl-terminated simple polyester.

7. The composition according to claim 6, in which silicony allyl-terminated simple polyester is obtained by reaction of vinilli-terminated polyol with a hydride silane.

8. The composition according to claim 1, which includes part-time reactive silicony polyol.

9. The composition according to claim 1, in which the part-time includes a simple polyester with wilanowie functional groups.

10. The composition according to claim 9, in which the molecular weight of the polyether is from about 2000 to about 50000 g/mol.

11. The composition according to claim 1, in which the reactive organopolysiloxane polymer presents a General overview of the formula II:

where R1and R2such as described above.

12. The composition according to claim 1, which additionally comprises a crosslinking agent in the amount of about 0.2 to 4 wt.% the total weight of polyorganosiloxane.

13. The composition according to claim 1, which additionally comprises a catalyst in an amount of 0.01-2 wt.% the total weight.

14. The composition according to claim 1, which further includes a plasticizer.

15. The composition according to claim 1, which further includes a reinforcing fillers, polyacrilamide fillers, or combinations thereof, in the amount of approximately 3-60 wt.% the total weight.



 

Same patents:

FIELD: chemistry.

SUBSTANCE: described is a polymer having a structure of formula: , in which R1 is independently selected from a C2-10 n-alkylene group, a C2-6 branched alkylene group, a C6-8 cycloalkylene group, a C6-10 alkylcycloalkylene group, -[(-CH2-)p-X-]q-(-CH2-)r- or -[(-CH2-)p-X-]q-(-CH2-)r-, wherein at least one -CH2- unit is substituted with a methyl group, p is an integer having a value ranging from 2 to 6, q is an integer having a value ranging from 1 to 5, r is an integer having a value ranging from 2 to 10, and X is selected from O, S, and -NR-, where R is hydrogen or methyl; R2 denotes a structure of formula ; R3 is independently selected from hydrogen and an alkyl group; n is an integer having a value ranging from 1 to 60; and m is a rational number having a value ranging from 1 to 10. The polymer is obtained using a method involving reaction of a compound containing at least two reactive thiol groups with allyl(meth)acrylate. Described also is a method of producing said polymer, wherein (>n) moles of polythiol react with (n) moles of allyl(meth)acrylate in the presence of a catalyst. Also described are curable compositions for a coating, sealant and adhesive, containing said polymer. Described is a method for at least partial coating or sealing a substrate with said curable composition involving: (a) depositing the curable composition on at least part of the substrate and (b) curing the composition. Described also are curable compositions for a coating, sealant and adhesive.

EFFECT: improved composition.

25 cl, 1 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a method of making a compound which is used to fill space between bearing elements of linings, when producing wearing elements of pumps or in friction bearings, or filling the inter-element space in grinders and ejector groups of elevators of mills. The method involves formation of a solid compound by mixing epoxy resin with a plasticiser. Filler heated to temperature 65-80°C is the added to the obtained mixture. The filler is selected from washed quartz sand, electrocorundum, boron carbide or dolomite.

EFFECT: formed compound has stable physical and mechanical characteristics and high pouring fluidity regardless of ambient temperature.

FIELD: chemistry.

SUBSTANCE: room temperature fast-curable organopolysiloxane composition contains: (A) diorganopolysiloxane with a hydroxy group on both ends and/or a hydrolysable group, (B) alkenoxysilane of formula: R1x-Si(O-CR2=CR3R4)4-x where R1 and R2 are independently an unsubstituted or substituted univalent hydrocarbon group; R3 and R4 are independently a hydrogen atom or a substituted or unsubstituted univalent hydrocarbon group; under the condition that R2 and R3 can together represent an alicyclic hydrocarbon group containing a C=C double bond in the formula given above, with carbon atoms, with R2 and R3 bonded thereto, x equals 0 or 1; or partial hydrolysate thereof, (C) aminosilane of formula: R5y-Si(NHR6)4.y, where R5 is a substituted or unsubstituted univalent hydrocarbon group; R6 is a substituted or unsubstituted univalent hydrocarbon group; and y equals 0 or 1; or partial hydrolysate thereof, and (D) a curing agent. The method of curing a room temperature fast-curable organopolysiloxane composition involving coating a substrate with a first portion of the composition containing components (A), (B) and (D), coating another substrate with a second portion of the composition containing components (A), (C) and optionally (D), and binding the substrates by curing the first portion of the composition together with the second portion of the composition.

EFFECT: obtaining a room temperature fast-curable organopolysiloxane composition capable of fast and complete curing.

12 cl, 5 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to aldimines of formula (I)

where A does not contain active hydrogen and a primary amine group, or together with R7 denotes a (n+2)-valent hydrocarbon radical containing 3-20 carbon atoms and, if necessary, at least one heteroatom in form of oxygen of an ether group or nitrogen or a tertiary amine group; n equals 1, 2, 3 or 4; m equals 0,1, 2, 3 or 4; R1 and R2 each denotes a univalent hydrocarbon residue with 1-12 carbon atoms or together denote a divalent hydrocarbon radical which is part of a carbocyclic ring with 5-8 carbon atoms; R3 denotes H or alkyl; R4 and R5 independently denote CH3 or a univalent aliphatic radical containing 2-12 carbon atoms and optionally hydroxy groups; X denotes O, S, N-R6, or N-R7, where R6 denotes a univalent hydrocarbon radical containing 1-20 carbon atoms and having at least one hydroxy group; as well as curable compositions containing such aldimines and use of said compositions.

EFFECT: obtaining novel aldimines which can be used as curing agents in curable compositions.

22 cl, 18 ex, 6 tbl

FIELD: chemistry.

SUBSTANCE: composition contains a polysulphide oligomer, manganese dioxide, filler, a plasticiser, a solvent, diphenyl guanidine and a modifier. The filler is modified montmorillonite obtained by reacting montmorillonite with polyfluoroalkyloligo-ε-caproamides. The modifier is di(1,1,5-trihydroperfluoropentyl) phthalic ester.

EFFECT: invention improves physical and mechanical, adhesion and waterproofing properties of the coating and widens the field of use of the composition.

2 tbl, 4 ex

Urethane putty // 2451703

FIELD: chemistry.

SUBSTANCE: invention relates to chemistry, particularly quick-setting polyurethane compositions and can be used in construction to seal joints between enclosing structures of buildings and control joints of concrete floors, slits and cracks. The urethane putty contains a component A as the basic paste, which contains a hydroxyl-containing polyether with molecular weight 3600, silicon dioxide, diethylene glycol, a cationic catalyst, a plasticiser containing dibutylphthalate and chloroparaffin, filler, and a component B as the putty hardener, which is obtained by reacting the hydroxyl-containing polyether - laprol 3603-2-12 with toluylene diisocyanate and further contains a stabiliser, wherein before application, components A and B are mixed with each other in ratio 9:1 pts.wt, respectively.

EFFECT: broader processing capability of urethane putty in construction of buildings.

4 cl

FIELD: chemistry.

SUBSTANCE: invention relates to acrylic rubber compositions which are used to make industrial rubber products, e.g., rubber hose, sealing articles, rubber vibration insulators etc. The composition contains carboxyl group-containing acrylic rubber, a diazabicycloalkene compound, a polyamine compound and a tertiary amine compound of formula (1), where each of R1, R2 and R3 independently denotes a substitute containing at least one saturated aliphatic hydrocarbon or an unsaturated aliphatic hydrocarbon with a linear structure, a branched structure or a cyclic structure, or a benzyl group. The polyamine compound is an aromatic polyamine of formula (2): H2N-Ph-M-Ph-NH2 (2) where M denotes O, S, SO2, CONH or O-R-O; R in O-R-O is Ph, Ph-Ph, Ph-SO2Ph, (CH2)m, m ranges from 3 to 5, Ph-CH2-C(CX3)2CH2-Pn, where X is H or F, or (CH2)C(CH3)2(CH2); Ph denotes a benzene ring.

EFFECT: good curing parameters and excellent combination of processability, mechanical properties of rubber and compression set of acrylic rubber compositions and curing products thereof.

9 cl, 5 tbl, 18 ex

FIELD: chemistry.

SUBSTANCE: composition contains the following in pts.wt: polysulphide oligomer 100, manganese dioxide 9-15, filler - modified montmorillonite 1-5, plasticiser 30-60, diphenyl guanidine 0.2-0.6 and a modifier 5-7. The modifier is an oligodiene diol ester prepolymer of an oligomer of ε-aminocaproic acid.

EFFECT: invention improves physical and mechanical, adhesion and waterproofing properties of the coating.

2 tbl, 2 ex

Coating composition // 2448141

FIELD: chemistry.

SUBSTANCE: composition contains the following in pts.wt: polysulphide oligomer - liquid thiocols with number-average molecular weight 1700-5500 and viscosity at 25°C 7.5-50 Pa·s 100, manganese dioxide 9-15, glycerine 15-25, 2,4,6-tris- (dimethylaminomethyl)-phenol 0.2-0.6, oligobutadiene diol 10-20, polyisocyanate 3-5, urethane-formation catalyst 0.01-1.00, diatomite 60-80, modifier 0.1-1.

EFFECT: invention enables to obtain an elastomeric material with improved physical-mechanical and water-proofing properties.

2 tbl

FIELD: chemistry.

SUBSTANCE: insulating double-glased window has at least two glass sheets spaced apart, a low thermal conductivity gas in between and a gas sealing element containing a curable sealing compound. The sealing compound consists of a) polydiorganosiloxane, which is permeable to said gas and the polydiorganosiloxane has a silanol end, having the following formula: MaDbD'c, in which a=2, b≥1, c equals zero or a positive whole number, M=(HO)3-x-yR1xR2ySiO1/2, in which x=0, 1 or 2, and y=0 or 1, provided that (x+y)≤2, R1 and R2 denote univalent C1-C60 hydrocarbon radicals; D=R3R4SiO1/2, in which R3 and R4 denote univalent C1-C60 hydrocarbon radicals; D'=R5R6SiO2/2, in which R5 and R6 are independently selected from univalent C1-C60 hydrocarbon radicals; b) at least one polymer which is at least less permeable to said gas than the polydiorganosiloxane polymer; c) a cross-linking agent; and d) a cross-linking catalyst.

EFFECT: obtaining insulating double-glased window with improved heat insulation stability and longer service life.

36 cl, 4 dwg, 3 tbl

FIELD: chemistry.

SUBSTANCE: polyurethane adhesive composition contains polyether, blocked polyisocyanate, polysilazane solution in toluene and filler. The filler is aluminium oxide. In order to increase adhesion strength and increase the operating temperature range to +230°C, the polyurethane adhesive composition is modified by epoxy diane resin ED-20.

EFFECT: invention enables to reduce hardening time, increase adhesion strength and processability.

2 tbl

FIELD: chemistry.

SUBSTANCE: composition contains the following in pts.wt: 100 bifunctional prepolymer with terminal isocyanate groups, 10.6-12.8 - 3,3'-dichloro-4,4'-diaminodiphenylmethane, 15.9-19.2 dioctylsebacate, 1.2-1.4 - 1,4-butanediol, 0.31-0.35 - para-phenylenediamine and 0.015-0.030 - Agidol 51,52,53 (mixture of 2-dimethylaminomethylphenol, 4-dimethylaminophenol, 2,6-bis (dimethylaminomethyl)phenol, 2,4-bis-(dimethylaminomethyl)phenol,2,4,6-tris-dimethylaminomethyl)phenol.

EFFECT: obtaining a fixing composition which, after prolonged storage, retains strength and adhesion parameters vital for operation of charges of antitank grenades at both high and low temperatures, and also prevents accidental exposure to substances which are harmful to health of personnel, in cases of technical faults and emergencies.

3 tbl

FIELD: transport.

SUBSTANCE: invention relates to method for covering light airplanes with polyester sheathing fabric, as well as to dispersive hot-gluing glue and its application for covering. For covering, polyester sheathing fabric with longitudinal shrinkage of 7% and transversal shrinkage of 5% at 160-180°C is used. In the process of covering light airplanes and/or their parts consisting of frame system, sheathing fabric in the area of its overhangs and frame parts is covered by dispersive hot-gluing glue and wrapped around longeron part of frame so that when connection between sheathing fabric and frame produced by glue is destructed the fabric could be held on frame carcass. Dispersive hot-gluing glue contains 80-88% of adhesive, 12-15% of hardener and 0.15-0.3% thickener, and the glue is polymerised at temperatures >40°C. The hardener contains 54-60% of solvent, 0.35-0.5% of naphthalensulfonic acid sodium salt-based stabiliser, 0.25-0.35% of propoxylated spirit-based emulsifier, 1.7-1.9% of polyetheramines-based hardener, 37-41% of polyisocyanate.

EFFECT: reliability and durability of light airplanes and/or their parts covering.

15 cl, 3 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to aldimines of formula (I)

where A does not contain active hydrogen and a primary amine group, or together with R7 denotes a (n+2)-valent hydrocarbon radical containing 3-20 carbon atoms and, if necessary, at least one heteroatom in form of oxygen of an ether group or nitrogen or a tertiary amine group; n equals 1, 2, 3 or 4; m equals 0,1, 2, 3 or 4; R1 and R2 each denotes a univalent hydrocarbon residue with 1-12 carbon atoms or together denote a divalent hydrocarbon radical which is part of a carbocyclic ring with 5-8 carbon atoms; R3 denotes H or alkyl; R4 and R5 independently denote CH3 or a univalent aliphatic radical containing 2-12 carbon atoms and optionally hydroxy groups; X denotes O, S, N-R6, or N-R7, where R6 denotes a univalent hydrocarbon radical containing 1-20 carbon atoms and having at least one hydroxy group; as well as curable compositions containing such aldimines and use of said compositions.

EFFECT: obtaining novel aldimines which can be used as curing agents in curable compositions.

22 cl, 18 ex, 6 tbl

FIELD: chemistry.

SUBSTANCE: invention can be used in making soft structures with a large size and complex configuration from multilayer fabric-film materials used in aerostatic technology. The adhesive, which is obtained by dissolving granular Desmocoll-530 or Chisicoll-005 adhesive in acetone in ratio 1:10 at temperature 25-30°C for 6-8 hours, is a homogeneous viscous liquid from colourless to milk-white colour with a mother-of-pearl tint. The low viscosity of the adhesive enables to form a thin, flexible adhesive film having a strong bond with the surface film of the multilayer fabric-film material, which makes it easier to apply the adhesive onto the surface. Hardening time between applying adhesive layers is not more than 5 min and after applying the layer the solvent is not completely removed from the adhesive for 1-3 min. The remaining negligible amount of acetone 'loosens' the surface of the material, which increases adhesion after heating the joint. Gradual 'point' warming up of glued surfaces with a hot roller moving at 3-5 mm/s with pressure 0.2-0.3 MPa, ensures formation a joint whose adhesion strength during delamination is not less than 1.5 N/m.

EFFECT: gluing method is essential in parts of an article which are hard to reach, with large areas of the glued surfaces and length of joints of up to 5-7 m.

3 cl

FIELD: chemistry.

SUBSTANCE: present invention relates to a two-component adhesive for gluing wooden materials, as well as a method of producing said adhesive. Said adhesive contains an isocyanate-containing component A and an amine-containing component B. Component A contains a prepolymer with a terminal isocyanate group with isocyanate functionality ≥ 1.7, preferably 1.7<fNco<3, more preferably in the range of 2-3, and component B contains at least one diamine and/or polyamine, preferably a diamine polyether and/or a polyamine polyether. Stoichiometric ratio of isocyanate groups in component A to amine groups in component B is equal to 0.5-1.2, more preferably 1.

EFFECT: obtaining a two-component adhesive which ensures strength, stability and improved load-bearing capacity of the obtained bond, and also having improved light fastness.

10 cl, 3 ex

FIELD: chemistry.

SUBSTANCE: present invention relates to a polyisocyanurate based adhesive which is obtained by reacting an organic polyisocyanate with a compound containing hydrogen atoms which are reactive towards isocyanate, in the presence of a trimerisation catalyst. The organic polyisocyanate is a polymer or prepolymer polyisocyanate, and content of the soft block in the adhesive ranges from 40 to 60 wt %. A reaction mixture for producing said adhesive is also described.

EFFECT: obtaining an adhesive capable of withstanding high maximum stress, having extremely fast setting and having a good and strong bond with the base, as well as high thermal stability, resistance to salty water and creep.

9 cl, 4 ex, 6 tbl

Gluing method // 2451040

FIELD: chemistry.

SUBSTANCE: method involves applying a UV curable adhesive resin composition, containing a photolatent base, onto at least one transparent surface of at least one of a first and a second substrate. The substrates are then brought together so that said adhesive composition lies in between. The adhesive composition is then exposed to actinic radiation for curing. The UV curable adhesive is a OH/NCO system or SH/NCO system. In another version of the gluing method, the first and second substrates are brought together after exposing the adhesive composition in between to actinic radiation.

EFFECT: disclosed gluing method enables faster curing of the adhesive.

5 cl, 10 tbl, 6 ex

FIELD: chemistry.

SUBSTANCE: disclosed is a polyurethane adhesive for laminating films. The polyurethane adhesive for laminating films contains at least one NCO-reactive polyurethane prepolymer and/or polyisocyanates and is cross-linked only through NCO-/acidic H groups. The adhesive is characterised by that it contains between 0.5 and 20 wt % low-molecular weight compound (A) having molecular weight lower than 2000 g/mol, which contains at least one group which is reactive with respect to primary amine groups, selected from an epoxy group, oligomeric polyethers of unsaturated carboxylic acids or vinylphosphonic acid, wherein compound (A) reacts with primary amine groups at a rate slower than the rate of the cross-linking reaction. Disclosed also is use of said adhesives in a method of producing laminated multilayer films which are glued using the disclosed polyurethane adhesives.

EFFECT: films glued using said adhesive contain a negligible amount of aromatic amines capable of migrating.

13 cl, 3 ex

FIELD: chemistry.

SUBSTANCE: composition contains one or more urethane prepolymers, having isocyanate residues, one or more compounds which catalyse the reaction of isocyanate residues with water or a compound which contains active hydrogen and one or more alpha-hydrocarbyl silane compounds. The urethane propolymer additionally contains a silane functional group. The composition additionally contains a compound or a polymer, containing silane residues. The composition additionally contains one or more compounds which catalyse silanol condensation. The composition is deposited onto the surface of glass or plastic with a coating or onto the surface of a substrate to obtain a sealant, then brought into contact and the composition is then hardened. The composition is placed between the glass or plastic with coating and the substrate. The sealing composition is used for binding an unprimed surface with a coating, such as a window lintel with glass with a transparent plastic, coated with an abrasive-resistant coating or with glass or plastic with a coating, additionally coated with glass cement, such as ceramic or organic glass cement.

EFFECT: improved composition properties.

10 cl, 2 ex

Glue composition // 2285027

FIELD: adhesives.

SUBSTANCE: glue composition usable in medicinal industry for gluing stainless steal needles with polypropylene head in manufacture of disposable injection needles. Composition contains, wt parts: epoxide dian resin 20.7-115.0, diluent 2.0-62.0, dicyanodiamide (curing agent) 3.0-18.0, Cotoran (curing agent) 1.7-37.0, Aerosil 0-2.7, titanium dioxide 0-91, said diluent being (i) ether selected from group consisting of butyl glycidyl ether, cresyl glycidyl ether and/or (ii) aliphatic epoxide resin (DEG-1, TEG-1).

EFFECT: increased adhesive properties and vitality of composition on storage, and also improved workability due to reduced viscosity and opacity.

2 tbl, 9 ex

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