Increasing weather resistance of polymer materials or enhancement of polymer materials with respect to weather resistance

FIELD: chemistry.

SUBSTANCE: polymer material contains acrylic polymer, chlorine-containing polymer and inorganic hydroxide. The acrylic polymer is selected from a homopolymer of alkyl(alc)acrylate or copolymer of alkylmethacrylate and alkylacrylate. The chlorine-containing polymer contains 5-70 wt % halogen. The inorganic hydroxide is selected from magnesium hydroxide, zinc hydroxide or mixtures thereof, except a mixture of magnesium hydroxide and zinc oxide or magnesium hydroxide and zinc stannate. Weight ratio between the chlorine-containing polymer and the acrylic polymer is at least 0.3. Polymer material is obtained by mixing the chlorine-containing polymer and inorganic hydroxide in molten acrylic polymer. The polymer material is used to make articles and structural elements in construction.

EFFECT: inorganic hydroxide gives the material high resistance to atmospheric effects.

45 cl, 3 tbl, 6 ex

 

The present invention relates to polymeric materials having high weather resistance. In particular, but not exclusively, the invention relates to polymeric materials, which include halogenated polymer, and particularly, to polymeric materials, which include both halogenated polymer and acrylic polymer.

Halogenated polymers, for example polyvinyl chloride (PVC), is a relatively cheap and readily available from a commercial point of view the materials. They are used in buildings in the open air and for glazing. However, their ability to endure the weather, for example the stability of halogenated polymers by exposure to light, is low, resulting in relatively short service life, especially for pigmented compositions.

Acrylic materials are used because of their strength, ability to carry atmospheric conditions, decorative features and durability in many areas, for example in construction, including glazing, automotive headlights, scale devices, reflectors, lenses, medical diagnostic equipment, signs and bath/sanitation equipment. They can be used as the outer material to create a covering layer on a substrate of a thermoplastic material and traces of the tion, to impart useful properties of acrylic compounds of the underlying thermoplastic material. One example of the application of an acrylic material as the exterior is described in U.S. patent 5318737 that describes the acrylic composition suitable for co-extrusion with Acrylonitrile-butadiene-styrene (ABS) polymer production of products for different areas of the final application.

For many applications it is important to preserve the useful properties after exposure to sunlight etc., are Usually themselves acrylic materials have exceptional resistance to weathering and, if there are valid recipe may be used to impart these properties to the underlying plastic materials. In some situations, it may be useful mixture of PVC and acrylic materials. For example, in comparison with non-modified acrylic materials, acrylic materials, modified by the addition of PVC, can be cheaper to have increased strength, exhibit reduced Flammability and has the desired properties melt flow. However, although the resistance of the mixture of acrylic material/PVC in relation to atmospheric forcing is usually higher than that of pure PVC, adding PVC to acrylic materials lowers resistance to weathering at Poslednij, compared to non-modified acrylic materials. Thus, a mixture of acrylic material/PVC may be invalid specifications in terms of color stability, deterioration of decorative and mechanical properties due to exposure to sunlight or when testing for resistance to weathering. In fact, a mixture of unmodified, pigmented acrylic material/PVC behave similarly to PVC, starting, as he did, to brighten ("fade"), after a few thousand hours of accelerated exposure to atmospheric factors as in xenon (hepo)and quartz UV (QUV) And devices. The phenomenon of the "poslednee" is well known to specialists in the production of PVC materials and is usually manifested in the form of lightening the color of the material, which is measured as a positive "ΔL" when testing for resistance to weathering. For mixtures of unmodified pigmented acrylic material/PVC onset of this "poslednee" depends on the amount of PVC that is present in the mixture, but even at concentrations of PVC below 20 wt.% over 6000 hours there is a significant color change (ΔΕ). The object of the present invention and is addressing the above problem.

In accordance with the first aspect of the present invention proposed a polymer is the material, including halogenated polymer which contains from 5 to 70 wt.% halogen and from 0.1 to 25 wt.% inorganic hydroxide of zinc, magnesium, molybdenum, antimony, aluminum, tin, copper, manganese, cobalt or iron.

In accordance with a second aspect, a method for manufacturing a polymeric material that includes a halogen-containing polymer which contains from 5 to 70 wt.% halogen and from 0.1 to 25 wt.% inorganic hydroxide of zinc, magnesium, molybdenum, antimony, aluminum, tin, copper, manganese, cobalt or iron, and this method involves mixing in the melt specified halogenated polymer and the inorganic hydroxide, preferably by extrusion, preferably between 150 and 250°C.

In accordance with a third aspect of the application of the inorganic hydroxide of zinc, magnesium, molybdenum, antimony, aluminum, tin, copper, manganese, cobalt or iron in the polymer material, comprising halogen-containing polymer which contains from 5 to 70 wt.% halogen, to improve the sustainability of this halogenated polymer to destruction under the influence of atmospheric effects, in particular in relation to its color stability.

Halogen-containing polymer preferably is a chlorine-containing polymer. The only halogen in the specified polymer, before occhialino, is chlorine. The specified polymer may be polyvinyl chloride, polyvinylchloride, grades, chlorinated PVC or chlorinated polyolefin. The specified polymer is preferably selected from a polymer or copolymer of vinyl chloride or vinylidenechloride. Particularly preferred halogen-containing polymer is polyvinyl chloride (PVC). The halogenated polymer may contain other materials known to experts in the art, such as pigments, fillers, impact strength modifiers, lubricants, UV stabilizers, thermal stabilizers and viscosity modifiers. Specified halogenated polymer typically comprises at least 75 wt.% polymer, preferably at least 80 wt.% polymer, preferably at least 90 wt.%, in particular at least 95 wt.% the polymer. Specified halogenated polymer may essentially be composed of a polymer, in particular PVC.

Accordingly, halogenated polymer, preferably in the absence of any fillers or other ingredients (e.g., thermal stabilizers or viscosity modifier), includes at least 10 wt.%, preferably, at least 20 wt.%, preferably, at least 30 wt.%, in particular, at least 40 wt.% is alogena, and in particular at least 45 wt.% halogen, in particular chlorine. Halogenated polymer, preferably in the absence of the above ingredients, preferably includes less than 70 wt.%, preferably, less than 60 wt.%, in particular, less than 57% by weight halogen, in particular chlorine. Preferably, the specified halogenated polymer does not include any other halogen, in addition to chlorine.

The specified polymeric material may include at least 0.5 wt.%, usually at least 0.75 wt.%, preferably at least 1 wt.%, in particular at least 2 wt.%, specified inorganic hydroxide. The specified polymeric material may include 20 wt.% or less, typically 15 wt.% or less, preferably 10 wt.% or less of the specified inorganic hydroxide.

Specified inorganic hydroxide may be selected from the group including aluminum hydroxide, zinc hydroxide, iron hydroxide, magnesium hydroxide and tin hydroxide. Specified inorganic hydroxide may also be hydroxide antimony. Preferably, the specified inorganic hydroxide is chosen from the group comprising magnesium hydroxide, hydroxide, antimony, zinc hydroxide and aluminum hydroxide, and the above-mentioned hydroxide, magnesium hydroxide, antimony and zinc hydroxide are preferred. Preferably, the criminal code is related inorganic hydroxide comprises magnesium hydroxide. Preferably, the specified inorganic hydroxide does not include material that contains aluminum hydroxide or consists of it. Specified inorganic hydroxide may include more than one inorganic hydroxide. However, it is preferable that the inorganic hydroxide is essentially comprised of magnesium hydroxide.

The particle diameter of average mass in the specified inorganic composition is usually less than 250 microns (2,5·10-4m), preferably less than 100 microns (1·10-4m), preferably less than 50 microns (5·10-5m), in particular less than 10 μm (1·10-5m), typically so that the material could have good surface gloss. In some cases, the diameter may be less than, for example, less than 0.1 microns (1·10-7m) or less. In this case, the particles may be so small that they do not scatter light, being embedded in acrylic material, and, therefore, can be made of a transparent acrylic material.

The specified polymeric material may include an acrylic polymer. Specified acrylic polymer may include a homopolymer or copolymer (a term that includes polymers having more than two different recurring items) alkyl(ALK)acrylate or a copolymer comprising Acrylonitrile, in particular a copolymer, which comprises styrene and Acrylonitrile, possibly in conjunction with other the material (in particular, with a polymeric material).

If the specified acrylic polymer is alkyl(ALK)acrylate, it is preferable that this was a Homo - or copolymer, at least one With1-C6alkyl(C0-C10ALK)acrylate, and more preferably, it was a copolymer obtained by polymerization of a mixture of monomers comprising 50-99 wt.% alkylmethacrylamide and 1-50 wt.% alkylacrylate. Alkylsalicylate is, preferably, C1-C4alkylmethacrylamide, for example, methyl methacrylate. Alkylacrylate is, preferably, C1-C4alkylacrylate, for example, methyl-, ethyl - or butyl acrylate. The molecular mass (Mw) alkyl(ALK)acrylate is preferably at least 20,000 and preferably at least 50000. Molecular weight may be 500,000 or less, preferably 200000 or less, preferably 150000 or less.

If the specified acrylic polymer is a copolymer comprising Acrylonitrile, he may be acrylic-styrene-Acrylonitrile (ASA) resin, Acrylonitrile-ethylenediaminedisuccinate (NPP) polymer, styrene-Acrylonitrile (SAN) polymer, olefin-styrene-Acrylonitrile (OCA) polymer or Acrylonitrile-butadiene-styrene (ABS) polymer, and preferred are polymers ASA, NPP and SAN.

Suitable copolymers, including acrylonitril is, include at least 15 wt.%, preferably at least 20 wt.%, preferably at least 25 wt.%, in particular, at least 30 wt.% Acrylonitrile; but less than 50 wt.%, preferably less than 40 wt.%, preferably less than 35 wt.% Acrylonitrile.

Suitable copolymers of Acrylonitrile include at least 40 wt.%, preferably at least 50 wt.%, preferably at least 55 wt.%, in particular, at least 60 wt.% styrene; but less than 80 wt.%, preferably less than 70 wt.%, preferably less than 65 wt.% styrene.

If the specified polymer comprising Acrylonitrile, includes a copolymer comprising Acrylonitrile and styrene in combination with other material, the said material may be selected from the group comprising olefinic material, acrylic material or ethylene-propylene-diene material (EPDM). The past number of these components can be availed in the range from 0 to 20 wt.%, preferably from 0 to 15 wt.%, in particular from 0 to 10 wt.%.

Polymeric material (in particular, a material containing an acrylic polymer comprising an alkyl(ALK)acrylate) may optionally include from 0 to 60 wt.%, preferably from 20 to 60 wt.%, kauchukopodobnoe copolymer. Under koutsokoumnis copolymer, we mean materials that have a temperature Steklova is below room temperature, preferably lower than 0°C, for example lower than -20°C. We also include copolymers that include koutsokoumnis blocks with low Tvitrification(Twith), often in conjunction with more solid blocks with more high-Twith. Such materials, as is known, are used as hardening agents for improving the impact strength of acrylic materials. Suitable koutsokoumnis copolymers include copolymers of acrylates, methacrylates, styrene, Acrylonitrile, and/or olefins (in particular, butadiene). Examples of suitable materials include styrene-butadiene rubbers, copolymers of styrene and of olefin, ternary copolymers of methacrylate, butadiene and styrene (MBS)copolymers of styrene and Acrylonitrile, and the particles of the shell-type core-shell type) on the basis of copolymers of methyl methacrylate and alkylacrylate, such as butyl acrylate and styrene. Preferred types kauchukopodobnoe copolymers are particles of shell type, such as are well known in the art and described, for example, in patent US-A-5318737.

The specified polymeric material preferably comprises from 0.1 to 99.8 wt.% specified halogenated polymer. The specified polymeric material may include at least 2 wt.%, typically at least 5 wt.%, preferably at least 10 wt.%, preferably measures at the 25 wt.%, in particular, at least 30 wt.% specified halogenated polymer. The specified polymeric material may include 80 wt.% or less, usually 70 wt.% or less, preferably 60 wt.% or less, particularly 50 wt.% or less than the specified halogenated polymer.

The specified polymeric material preferably comprises from 0.1 to 99.8 wt.% specified acrylic polymer. The specified polymeric material may include at least 5 wt.%, usually at least 10 wt.%, preferably at least 24,9 wt.%, preferably at least 40 wt.%, in particular, at least 60 wt.% specified acrylic polymer. The specified polymeric material may include 94,9 wt.% or less, usually 90 wt.% or less, preferably 80 wt.% or less, preferably 70 wt.% or less than the specified acrylic polymer.

The mass ratio between the halogen-containing polymer and the acrylic polymer in the specified polymeric material may be at least 0.3, and in particular, at least, of 0.4. This ratio can be less than 2, preferably less than 1.5, in particular less than 1.1. If the specified acrylic polymer is ASA, and halogenated polymer is PVC, the ratio may be approximately 1. If the specified acrylic polymer is alkyl(ALK)acrylate, and halogenated polymer is PVC, then appropriate osenia can vary in the range from 0.35 to 0.6, in particular from 0.4 to 0.5.

Halogenated polymer, preferably compatible with the acrylic polymer, so that it can be administered by mixing in the melt to produce a polymeric material without difficulty.

Other additives such as UV stabilizers, colorants, lubricants, etc. that are usually in acrylic materials can be present in this polymer material. The polymeric material may optionally contain one or more inorganic material selected from the group including oxides, carbonates, borates, stearates, chlorides or bromides of zinc, magnesium, molybdenum, antimony, aluminum, tin, copper, manganese, cobalt or iron. The polymeric material may include from 0.5 to 15 wt.%, at least one of the foregoing inorganic materials, preferably 0.5 to 5 wt.%.

The specified polymeric material typically comprises less than 1 wt.%, preferably less than 0.5 wt.%, preferably less than 0.1 wt.% hydrotalcite or, in particular, essentially does not contain it at all. The specified polymeric material typically comprises less than 1 wt.%, preferably less than 0.5 wt.%, preferably less than 0.1 wt.% the main calcium-aluminum-hydroxycarboxylic or, in particular, essentially does not contain them at all. The specified polymeric material typically comprises less than 1 wt.%, site is preferably less than 0.5 wt.%, preferably less than 0.1 wt.% polyols and/or isocyanurate containing hydroxyl groups or, in particular, essentially does not contain them at all.

In a preferred modification of the acrylic polymer are mixed in the melt with an inorganic hydroxide at a temperature between 150 and 230°C, preferably between 180 and 220°C before mixing in the melt with the halogenated polymer. It is preferable to mix the melt immediately all the components at a temperature between 150 and 230°C, preferably between 160 and 200°C., in particular between 170 and 195°C.

The polymeric material can be produced in the form of sheets, films, powders or granules. Various configurations can be shaped by extrusion or molding, it can be applied to other materials using co-extrusion or lamination, for example, rigid or foamed ABS, PVC, polystyrene polymers, including polystyrene, high impact (HIPS), and other modified polymers of styrene, or polyolefins. The material can also be caused by joint extrusion or lamination on the metal. Material, as described, in the form of sheets (for example, sheets, obtained by joint extrusion or lamination) can be given the desired shape by thermal means or by any other suitable method.

The present invention entering the tsya on the polymeric material, including:

a) from 0.1 to 99.8 wt.% acrylic polymer;

b) from 0.1 to 99.8 wt.% halogenated polymer, which contains from 5 to 70 wt.% halogen;

C) from 0.1 to 25 wt.% inorganic hydroxide is selected from the hydroxides of zinc, magnesium, molybdenum, antimony, aluminum, tin, copper, manganese, cobalt or iron.

The present invention further extends to a method of manufacturing a polymeric material, which includes:

a) from 0.1 to 99.8 wt.% acrylic polymer;

b) from 0.1 to 99.8 wt.% halogenated polymer, which contains from 5 to 70 wt.% halogen;

C) from 0.1 to 25 wt.% inorganic hydroxide is selected from the hydroxides of zinc, magnesium, molybdenum, antimony, aluminum, tin, copper, manganese, cobalt, or iron;

moreover, this method involves mixing in the melt specified acrylic polymer specified halogenated polymer and the inorganic hydroxide by extrusion at a temperature between 150 and 250°C.

The present invention covers the use of inorganic hydroxide is selected from the hydroxides of zinc, magnesium, molybdenum, antimony, aluminum, tin, copper, manganese, cobalt or iron, polymeric material that includes a halogenated polymer, to improve resistance to decay under the influence of weathering this Halogens is containing a series of polymer.

Described here polymeric material can be supplied in the form of granules. The granules can then be thermally processed for any further application. Alternatively, if the polymer material includes an acrylic polymer, a solid form (e.g. pellets)containing a specified acrylic polymer and said inorganic hydroxide, can be delivered for subsequent mixing with the specified halogenated polymer. Thus, the invention extends to a solid form, including a specified acrylic polymer and said inorganic hydroxide, where "wt.%", marked here and below for the specified acrylic polymer and the inorganic hydroxide represented "mass fraction" in the specified solid form.

The invention extends to weatherproof element includes the acrylic material in accordance with the first aspect, or made by a method in accordance with the second aspect.

The specified element may be any element, caused by joint extrusion or lamination, and to include specified acrylic material.

The specified element can be used in construction.

The specified element can be used in the construction of buildings. For example, it can be a single or poluchenno the joint extrusion of a construction detail, for example, a ceiling Board, covering the gable rafters, drain Board, wall Board, the outer wall, a gutter, pipe, shutters, replacement sash Windows, interior window sill, window profile, the profile greenhouses, door panels, door panels, roofing materials, architectural fittings, or similar items.

The specified component can be used in the construction of vehicles or used otherwise in the automotive industry as a substance in the mass, and as a laminate obtained by joint extrusion. Such use includes (but is not limited to them) decorative exterior finish, the production of molded parts for cabs, bumpers (fenders), blinds, rear panels, parts for buses, trucks, vans, houses, trailers, agricultural machinery and bulk conveyances, decorative exterior trim side and back panels and related parts.

The specified component can be used both indoors and outside, such as baths, facilities, hot showers, shower enclosures, racks, fixtures in the bathroom, seat, kitchen equipment, shells, shells or housings of refrigerators, for making fences, bins, garden tools and similar items.

Izaberete what s additional cover is resistant to weathering element, used outdoors, including a polymeric material in accordance with the first aspect, or made by a method in accordance with the second aspect. Use outdoors includes the above-mentioned construction elements, as well as signs, for example, gas stations (or similar objects).

The invention additionally extends to weatherproof the extrudate comprising a polymeric material in accordance with the first aspect, or made by a method in accordance with the second aspect.

The invention covers the use of elements made of polymeric material in accordance with the first aspect, or made by a method in accordance with the second aspect, in the construction and/or use outside the premises.

The invention extends to a structure comprising an element made of acrylic material in accordance with the first aspect, or made by a method in accordance with the second aspect.

The invention extends to an element that includes a substrate and an outer material, where at least either the substrate or the outer material are acrylic material in accordance with the first aspect, or made by a method in accordance with the second aspect.

Ljubo is a feature of any aspect of any invention or variant implementation of the invention, described here can be combined with any feature of any aspect of any invention or variant implementation of the invention described here.

The invention will be further described through the following examples.

Example 1

Commercial grade modified in regard to the impact strength of the moulding acrylic copolymer comprising poly (methyl methacrylate), copolymerizable with acrylate were mixed in the melt with the required number of unplasticized PVC (supplied by EVC Compounds) and magnesium hydroxide having an average particle size of 5 μm (5·10-6m) (supplied Britmag), as shown in table 1. To each sample was added 0.5 wt.% UV stabilizer (Tinuvin P from Ciba-Geigy) and 8 wt.% ink masterbatches (50% dispersion of pigment in an acrylic material). For compounding materials used twin screw extruder with exhaust gas Clextral 30 (screws General purpose 300 Rev/min, 190°C). Materials caused by joint extrusion on the foam unplasticized PVC with thickness of 100 mm

The samples were tested for resistance to weathering using accelerated tests for atmospheric effects using quartz UV (QUV) lamps And apparatus of the Q-Panel test according to ASTM G53 and using a xenon arc lamp in the apparatus Hereaus 150S test according to ISO 4892. Results after 6000 cha is offering the impacts shown in table 1.

Adding magnesium hydroxide to the mixtures of acrylic material/PVC has had significant positive effects on color stability when conducting accelerated tests on atmospheric impacts. Acrylic blend containing 30 wt.% PVC and not containing Mg(OH)2shows color change (characterized by the value of ΔΕ)exceeding 4 units after 6000 hours of exposure to a xenon lamp and 6000 hours of exposure to quartz UV lamp A. the Material is also aswell and Tomelilla". On the contrary, in samples, to which was added magnesium hydroxide, the value of ΔΕ is much less after the same exposure time, indicating a much better color retention when conducting accelerated tests on the weather.

Table 1
Composition
Acrylic copolymer (wt.%)Unplasticized PVC (wt.%)Mg(OH)2(wt.%)Quartz UV AND ΔΕXenon 150 S, ΔΕ
7030-5,84,5
65 30510,6
6030100,60,4

Example 2

A composition including at 54.5 wt.% the standard of moulding acrylic polymer (eye specialists Frau Dr. med™ MG102 supplied by Ineos Acrylics), 40 wt.% unplasticized PVC, 1% Mg(OH)2, 2% stannate zinc and 2% of zinc borate and 0.5% of UV stabilizer (Tinuvin P from Ciba-Geigy), and 0.2% of a thermal stabilizer (Irganox 1076 from Ciba-Geigy) were mixed in the melt as described in example 1. Was defined as resistance to weathering compared to the sample obtained from the same colour unmodified unplasticized PVC. The results are shown in table 2.

0,2
Table 2
Time (hours)Modified MG102, Quartz UV AND ΔΕUnplasticized PVC, UV Quartz AND ΔΕ
10000,63,0
20001,5the 3.8
3000the 3.8
40000,23,7
50000,33,7
60000,73,1

Example 3

A composition comprising of 36.5 wt.% commercially available modified in regard to the impact strength of acrylic molding composition comprising polymethylmethacrylate, copolymerizable with acrylate, 50 wt.% unplasticized PVC (supplied EVC), 8 wt.% ink masterbatches (50% dispersion of pigment in an acrylic material) and 5% Mg(OH)2and 0.5% of UV stabilizer (Tinuvin P from Ciba-Geigy) were mixed in the melt, using a twin screw extruder with exhaust gas Clextral 30 (screws General purpose 300 Rev/min, 190°C). Thus obtained pellets were injection molded to form a plate nominal thickness 4 mm

Example 4

A composition containing 11.5 wt.% commercially available acrylic molding composition comprising polymethylmethacrylate, copolymerizable with acrylate, 75 wt.% unplasticized PVC (supplied EVC), 8 wt.% ink masterbatches (50% dispersion of pigment in an acrylic material) and 5% Mg(OH)2and 0.5% of the UV-stabilised the RA (Tinuvin P from Ciba-Geigy), mixed in the melt was molded as described in example 3.

Example 5

A composition including 86,5 wt.% unplasticized PVC (supplied EVC), 8 wt.% ink masterbatches (50% dispersion of pigment in an acrylic material) and 5% Mg(OH)2and 0.5% of UV stabilizer (Tinuvin P from Ciba-Geigy)were mixed in the melt was molded as described in example 3.

Example 6

Similar color sample pigmented unplasticized PVC and materials described in examples 3-5 were tested for resistance to weathering using quartz UV lamps And apparatus of the Q-Panel according to ASTM G53. The results are shown in table 3.

Table 3
MaterialQuartz UV AND ΔΕ
250 hours500 hours1000 hours
Example 30,40,40,4
Example 40,40,40,8
Example 50,7 0,71,1
Pigmented unplasticized PVC1,43,05,3

The attention of the reader feature all papers and documents which have been registered at the same time or earlier in this specification in connection with the present application and which are open for access along with this specification; and the content of all these articles and documents cited hereafter as references.

All the characteristics described in the present description (including any accompanying claims, abstract and drawings), and/or all transactions of any method or process described thus can be combined in any combination, except combinations where at least some of these features and/or operations are mutually excluded.

Each trait described in this specification (including any accompanying claims, abstract and drawings)may be replaced by alternative features, suitable for the same, equivalent or similar purpose, unless otherwise specified. Thus, unless otherwise noted, each of these signs is just one example of a generic series of equivalent or similar to the signs.

The invention is not limited to the details above modifications (modifications). The invention extends to any new combination or any new combination of characteristics described in this specification (including any accompanying claims, abstract and drawings), or any new combination or any new combination of the operations of any of the described method or process.

1. Weather resistant polymeric material in the form of sheets, films, powders or granules, including
(a) an acrylic polymer selected from homopolymer or copolymer of alkyl(ALK)acrylate, where the specified copolymer obtained by polymerization of a mixture of monomers comprising from 50 to 99 wt.% alkylmethacrylamide and from 1 to 50 wt.% alkylacrylate, and molecular mass (Mw) alkyl(ALK)acrylate is less than or equal to 200,000, but is at least 20000;
b) chlorine-containing polymer which contains from 5 to 70 wt.% halogen;
C) from 0.1 to 25 wt.% inorganic hydroxide is selected from magnesium hydroxide, zinc hydroxide, or mixtures thereof, but not including magnesium hydroxide in combination with zinc oxide or magnesium hydroxide in combination with stannate zinc.

2. The polymeric material of claim 1, wherein the inorganic hydroxide is a hydroxide of magnesium.

3. The polymeric material according to claim 1 in which the acrylic polymer contains the amount of 0.1 to 99.8 wt.% polymer material.

4. The polymeric material according to claim 1, in which the chlorine-containing polymer is contained in an amount of 0.1 to 99.8 wt.%.

5. The polymeric material according to claim 1, wherein said acrylic polymer is a homopolymer of methyl methacrylate.

6. The polymeric material according to claim 1 in which the acrylic polymer is a copolymer obtained by polymerization of a mixture of monomers comprising from 50 to 99 wt.% alkylmethacrylamide and from 1 to 50 wt.% alkylacrylate, and alkylbetaine represents a C1-C4alkylmethacrylamide.

7. The polymeric material according to claim 6, in which C1-C4alkylsalicylate is a methacrylate.

8. The polymeric material according to claim 1 in which the acrylic polymer is a copolymer obtained by polymerization of a mixture of monomers comprising from 50 to 99 wt.% alkylmethacrylamide and from 1 to 50 wt.% alkylacrylate, and alkylacrylate represents a C1-C4alkylacrylate.

9. The polymeric material according to claim 1, in which the molecular mass (Mw) alkyl(ALK)acrylate is at least 50000.

10. The polymeric material according to claim 1, in which the molecular mass (Mw) alkyl(ALK)acrylate is at least 150000.

11. The polymeric material of claim 1, wherein the mass ratio of chlorine-containing polymer to the acrylic polymer in the specified polymeric material extending t is at least 0,3.

12. The polymeric material according to claim 1, wherein said chlorine-containing polymer is a polymer or copolymer of vinyl chloride or vinylidenechloride.

13. The polymeric material according to claim 1, wherein said chlorine-containing polymer comprises at least 10 wt.% halogen.

14. The polymeric material according to claim 1, wherein said chlorine-containing polymer does not include any other halogen, in addition to chlorine.

15. The polymeric material according to claim 1, wherein said polymeric material comprises at least 0.5 wt.% specified inorganic hydroxide.

16. The polymeric material according to claim 1, wherein said polymeric material comprises 20 wt.% or less of the specified inorganic hydroxide.

17. The polymer material according to item 16, wherein said polymeric material comprises 10 wt.% or less of the specified inorganic hydroxide.

18. The polymer material according to any one of claims 1 to 17, which additionally contains from 20 to 60 wt.% kauchukopodobnoe copolymer.

19. Weather resistant polymeric material in the form of sheets, films, powders or granules, including
(a) an acrylic polymer selected from homopolymer or copolymer of alkyl(ALK)acrylate, where the specified copolymer obtained by polymerization of a mixture of monomers comprising from 50 to 99 wt.% alkylmethacrylamide and from 1 to 50 wt.% alkylacrylate, and molecular mass (Mw) Alki the(ALK)acrylate is less than or equal to 200,000, but is at least 20000;
b) chlorine-containing polymer which contains from 5 to 70 wt.% halogen;
C) from 0.1 to 25 wt.% inorganic hydroxide, consisting essentially of magnesium hydroxide.

20. The polymeric material according to claim 19, in which the acrylic polymer is contained in an amount of from 0.1 to 99.8 wt.% polymeric material.

21. The polymeric material according to claim 19, in which the chlorine-containing polymer is contained in an amount of from 0.1 to 99.8 wt.% polymeric material.

22. The polymeric material according to claim 19, in which the acrylic polymer is a homopolymer of methyl methacrylate.

23. The polymeric material according to claim 19, in which the acrylic polymer is a copolymer obtained by polymerization of a mixture of monomers comprising from 50 to 99 wt.% alkylmethacrylamide and from 1 to 50 wt.% alkylacrylate, and the specified alkylmethacrylamide represents a C1-C4alkylmethacrylamide.

24. The polymer material according to item 23, in which C1-C4alkylsalicylate is a methacrylate.

25. The polymeric material according to claim 19, in which the acrylic polymer is a copolymer obtained by polymerization of a mixture of monomers comprising from 50 to 99 wt.% alkylmethacrylamide and from 1 to 50 wt.% alkylacrylate, and alkylacrylate represents a C1-C4alkylacrylate.

26. The polymeric material according to claim 19, in which the mole is alarna mass (M w) alkyl(ALK)acrylate is less than or equal to 50000.

27. The polymeric material according to claim 19, in which the molecular mass (Mw) alkyl(ALK)acrylate is less than or equal to 150000.

28. The polymeric material according to claim 19, in which the mass ratio of chlorine-containing polymer to the acrylic polymer in the specified polymeric material is at least 0,3.

29. The polymeric material according to claim 19, wherein said chlorine-containing polymer is a polymer or copolymer of vinyl chloride or vinylidenechloride.

30. The polymeric material according to claim 19, wherein said chlorine-containing polymer comprises at least 10 wt.% halogen.

31. The polymeric material according to claim 19, wherein said chlorine-containing polymer does not include any other halogen, in addition to chlorine.

32. The polymeric material according to claim 19, wherein said polymeric material comprises at least 0.5 wt.% specified inorganic hydroxide.

33. The polymeric material according to claim 19, wherein said polymeric material comprises 20 wt.% or less of the specified inorganic hydroxide.

34. Polymeric material p, wherein said polymeric material comprises 10 wt.% or less of the specified inorganic hydroxide.

35. The polymer material according to any one of p-34, which additionally contains from 20 to 60 wt.% kauchukopodobnoe copolymer.

36. The way of getting karnego material, corresponding to any of the preceding paragraphs, comprising mixing in the melt acrylic polymer, chlorine-containing polymer and an inorganic hydroxide.

37. The method according to p, in which the mixing in the melt is carried out at a temperature between 150 and 250°C.

38. The method according to p or 37, in which the mixing in the melt is carried out by extrusion.

39. The method according to p, in which the acrylic polymer is mixed in the melt with an inorganic hydroxide at a temperature between 150 and 250°C before mixing with chlorine-containing polymer.

40. Weather resistant structural element comprising a polymeric material according to any one of claims 1 to 35.

41. Weather resistant structural element according to p, which is a one-piece structural element or structural element obtained by co-extrusion.

42. The product made from a polymeric material according to any one of claims 1 to 35.

43. Structural element that includes a substrate and an outer material, where at least either the substrate or the outer material is a polymeric material according to any one of claims 1 to 35.

44. Application of inorganic zinc hydroxide or magnesium in the polymeric material comprising (a) chlorine-containing polymer according to any one of claims 1 to 35, and b) acrylic polymer according to any one of claims 1 to 35, to improve the weather resistance chlorine is containing polymer.

45. The polymer material according to any one of claims 1 to 35 for use in construction as weather resistant material.



 

Same patents:

FIELD: process engineering.

SUBSTANCE: invention relates to mechanical fining of shaped articles by films. Adhesive is applied on shaped article surface and film is applied thereto. Shape article represents a window section. Fining of said section is carried out using polyurethane adhesive PVC film, polyacrylate or poly ether. Note here that said section is heated on applying adhesive on its surface, or adhesive is heated on its application on section surface to at least 40°C. Proposed method allows rejecting pre-processing of section to be fined.

EFFECT: minimised lamination of applied film.

7 cl, 1 ex

FIELD: process engineering.

SUBSTANCE: invention relates to mechanical fining of shaped articles by films. Adhesive is applied on shaped article surface and film is applied thereto. Shape article represents a window section. Fining of said section is carried out using polyurethane adhesive PVC film, polyacrylate or poly ether. Note here that said section is heated on applying adhesive on its surface, or adhesive is heated on its application on section surface to at least 40°C. Proposed method allows rejecting pre-processing of section to be fined.

EFFECT: minimised lamination of applied film.

7 cl, 1 ex

FIELD: chemistry.

SUBSTANCE: polychloroprene rubber-based glue is applied onto rubber surfaces and said surfaces are brought into contact. Nairite NT or nairite DP combined with 88NT or 88SA butylphenol formaldehyde resin is used. Before application, methylphosphite borate modifier is added to the glue in amount of 1-3 pts. wt per 100 pts. wt of glue. The glue film is then dried at room temperature for 1-2 minutes and the glued surfaces are brought into contact under a load for 24 hours.

EFFECT: high strength of the glue joint when gluing vulcanised rubber and simplification of the gluing process.

2 tbl, 2 ex

FIELD: chemistry.

SUBSTANCE: invention can be used in rubber industry to make rubber-metal articles, particularly water-resistant articles used at high temperatures (up to 90°C). The invention relates to a method of gluing rubber to metal through a cold curing method, which involves applying a layer of glue onto a processed metal surface. Rubber is glued to the metal using a ternary adhesive composition: a first layer of Chemosil 211 glue is applied onto a processed metal surface and dried, a second layer of Chemosil 221 or Chemosil 222 glue is applied on the first layer and dried, and two layers of 88 KR glue are applied on each processed metal and rubber surfaces, drying each of the layers and then gluing the surfaces.

EFFECT: higher bonding strength of polar raw rubber-based rubber with a metal alloy while maintaining high adhesiveness and adhesion strength when the article is used in water at high temperatures.

2 cl, 1 tbl

FIELD: chemistry.

SUBSTANCE: invention can be used in rubber industry to make rubber-metal articles, particularly water-resistant articles used at high temperatures (up to 90°C). The invention relates to a method of gluing rubber to metal through a cold curing method, which involves applying a layer of glue onto a processed metal surface. Rubber is glued to the metal using a ternary adhesive composition: a first layer of Chemosil 211 glue is applied onto a processed metal surface and dried, a second layer of Chemosil 221 or Chemosil 222 glue is applied on the first layer and dried, and two layers of 88 KR glue are applied on each processed metal and rubber surfaces, drying each of the layers and then gluing the surfaces.

EFFECT: higher bonding strength of polar raw rubber-based rubber with a metal alloy while maintaining high adhesiveness and adhesion strength when the article is used in water at high temperatures.

2 cl, 1 tbl

FIELD: chemistry.

SUBSTANCE: invention can be used in rubber industry to make rubber-metal articles, particularly water-resistant articles used at high temperatures (up to 90°C). The invention relates to a method of gluing rubber to metal through a cold curing method, which involves applying a layer of glue onto a processed metal surface. Rubber is glued to the metal using a ternary adhesive composition: a first layer of Chemosil 211 glue is applied onto a processed metal surface and dried, a second layer of Chemosil 221 or Chemosil 222 glue is applied on the first layer and dried, and two layers of 88 KR glue are applied on each processed metal and rubber surfaces, drying each of the layers and then gluing the surfaces.

EFFECT: higher bonding strength of polar raw rubber-based rubber with a metal alloy while maintaining high adhesiveness and adhesion strength when the article is used in water at high temperatures.

2 cl, 1 tbl

FIELD: construction.

SUBSTANCE: invention relates to method for manufacturing of laminate wooden parts and elements, namely multichamber ones, in construction, furniture making. Method for manufacturing of multichamber laminate construction element, which consists in manufacturing of multichamber element from previously prepared board materials and lamellae and insulating material cut accordingly, with the help of layout table with heating, which in its turn consists of lower table, movable upper slab with drop-out guides and with hydraulic cylinders with pushers. Lamel with slots and dowels inserted as glued into "dead" holes in element stock is laid onto lower table in front of press, transverse power spacers are glued to protruding ends of dowels. Longitudinal parts of power frame are placed into slots of lamel and power spacers with applied glue. Insulating material is laid into produced pockets. Afterwards heating of lower table is switched on, with the help of coolant - air, water, passing along strengthening tight box installed under lower table. Assembled stock is placed into press so that upper part of power spacers is installed into guides on lower surface of movable upper table. Afterwards stock of multichamber element is aligned by marks on press and is exposed to pressure with the help of hydraulic cylinders of press with pushers. After lifting of upper plate, the stock is again moved to free part of lower table, and the second lamel is laid on top of it, with applied glue. Its longitudinal parts are inserted into according slots, and protruding ends of dowels - into openings of power longitudinal spacers. Assembled element is turned by 180 degrees to prevent outflow of glue. After inspection of assembly accuracy, the element is placed into press, with previously dropped out guides on upper plate. Upper plate lowers to the fixed level, creating pressure at element components and developing a required geometric size. Heating is switched one, and after required time delay assembled element is moved to section of finishing works.

EFFECT: invention makes it possible to produce multichamber laminate construction element in fast and manufacturable manner.

2 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to a method of gluing vulcanised rubber to each other and can be used in rubber industry. The method of gluing different types of vulcanised rubber to each other involves application of polychloroprene rubber based glue onto vulcanised rubber surfaces to be glued and then bringing the surfaces into contact. The base of the polychloroprene glue used is nairit NT or nairit DP combined with butyl phenolformaldehyde resin in 88NT or 88SA adhesive. Before application onto the surface, the adhesive is mixed with a trichloroethylphosphate or trichloropropylphosphate modifier in amount of 0.05-2.0 pts. wt per 100 pts. wt of the adhesive, and after application, the adhesive film is dried at room temperature for 1-2 minutes and the surfaces to be glued are brought into contact under a load for 24 hours.

EFFECT: increased strength of the glue joint when gluing vulcanised rubber and simplification of the gluing process.

2 tbl, 2 ex

FIELD: chemistry.

SUBSTANCE: two-component composition of adhesion promotor contains first component K1 including at least one organoalkoxysilane S and at least one dehydrated surfactant T, and second component K2 including water and at least one acid, with acid taken in amount providing acid reaction at pH 3-5 in the mix obtained from K1 and K2 components.

EFFECT: simplified composition preparation, improved adhesion with composition stability preserved.

27 cl, 7 dwg, 12 tbl

FIELD: process engineering.

SUBSTANCE: invention relates to method of jointing coverings with cellular filler in three-layer panels and can be used in aircraft engineering, ship building and other machine building branches. Proposed method comprises applying adhesive composition on faces of cellular filler, assembling coverings and cellular filler and their jointing together at increased temperature and permanent magnetic field effects. Note here that ferromagnetic powder is preliminary added into adhesive composition in amount of 5-10% by weight of adhesive composition weight, while permanent magnetic field intensity makes 300-500 "Э".

EFFECT: higher strength of joint, hence, higher reliability of articles in operation.

2 ex, 1 tbl

FIELD: medicine, pharmaceutics.

SUBSTANCE: declared invention concerns hydrogel compositions useful as a dressing material or protective agent, and for application of a wide range of active substances in relation to the skin and tissues of mucosas, such as mouth, including tooth bleaches. The faza-parted, film-forming composition containing an admixture is offered: (a) the first polymer bulking up in water, and the specified polymer is not dissolved in water at pH less than approximately 5.5, or water-soluble polymer; (b) an admixture of hydrophylic polymer and additional low-molecular polymer, capable to formation of hydrogen communications with hydrophylic polymer; (c) the second polymer bulking up in water, and the specified polymer we will not dissolve in water at all value pH; and (d) unessential active substance, in a dissolvent or in an admixture of dissolvents where the composition is exposed to separation of phases at hydration.

EFFECT: treatment of a disease state of various surfaces of a body (teeth, fingernails, skin, mucosas etc).

44 cl, 7 ex

FIELD: medicine.

SUBSTANCE: composition contains water-swelling, water-insoluble polymer, mixed hydrophilic polymer and complementary oligomer able to form hydrogen bond with hydrophilic polymer, and a bleaching agent, preferentially peroxide. The composition is applied a dental bleaching composition and applied on teeth to be bleached, and then removed as the required bleaching is reached. In best versions the composition is unstable and translucent. There are also methods of preparation and application of the compositions.

EFFECT: reduced dental sensitivity and damage or irritation of gums and oral mucous membranes, improved clinical effectiveness.

54 cl, 10 ex

FIELD: chemistry.

SUBSTANCE: there is offered wheel impregnation composition containing aqueous solution of binding agent, oxyethylated lanolin and liquid glass, where a binding agent is a mixed aqueous copolymer emulsion prepared by emulsion polymerisation of methylolmethacrylamide, vinylacetate, butykacrylate, methylmethacrylate and methacrylic acid in mass ratio 1.0:9.0-9.5:2.5-3.0:3.5-4.0:0.04-0.06 respectively with the composition formulation as follows (wt fractions): copolymer emulsion (on dry basis) - 100, oxyethylated lanolin - 3-8, liquid sodium glass - 1-6, water 360-440.

EFFECT: development of wheel impregnation composition improving resistance of sisal-fabric and sisal-cord wheels with operating cost reduction.

1 cl, 1 tbl, 5 ex

FIELD: chemistry.

SUBSTANCE: there is disclosed application of inorganic IR-reflecting pigments for dark-coloured moulding compounds containing mixed polymethyl(meth)acrylate and adjugated matrix to 45 wt % containing (wt %): styrene (70-92), acrylonitrile (8-30), additional comonomers (0-22) and inorganic pigments. A moulded piece made of these moulding compounds is characterised with heating rate 50°C/20 min and less. In addition, there is disclosed application of the declared moulded piece over the other moulded piece with using conventional methods.

EFFECT: development of well processed, stable opaque-coloured IR-reflecting moulding compounds.

7 cl, 3 dwg, 2 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: present invention pertains to compositions, with low coefficient of friction for use in friction units of living organisms. Proposal is given of an antifriction composition, containing, as polymer binding mixture (with ratio of components in the binder): methyl methacrylate monomer (27-36 mass units), polymethyl methacrylate polymer powder (72-64 mass units), initiator - benzoyl peroxide 1 mass units (polymer binder A); or a mixture (with ratio of components in the binder): methyl methacrylate (27-36 mass units), copolymer powder (72-64 mass units) with the following content of components: methyl methacrylate - 89 mass units, ethyl methacrylate - 8 mass units, methyl methacrylate - 2 mass units, as well as initiator-benzoyl peroxide - 0.6-1.5 mass units (polymer, binder B) and ultrahigh-molecular polyethylene with 1·106 - 12·106 dalton molecular weight, in powder form (2-15 mass units per 85-98 mass units of polymer binder). Compared to the prototype, the value of coefficient of friction decreases by 2-4 times.

EFFECT: design of a composition, which reduces friction in the maxillotemporal joint of a polymer implant.

3 cl, 4 tbl

FIELD: chemistry.

SUBSTANCE: invention refers to technology of hull-kernel particles which can be used to modify impact strength of poly(met)akrylate moulding compositions. According to method a) water and emulsifier b) are added with 25.0 to 45.0 mass fractions of the first composition containing A) alkylmetacrylate 50.0 to 99.9 mass fractions, B) alkylakrylate 0.0 to 40 mass fractions, C) cohesive monomers 0.1 to 10.0 mass fractions, and D) styrene monomers 0.0 to 8.0 mass fractions, and polymerised, c) added 35.0 to 55.0 mass fractions of the second composition containing E) (met)akrylates 80.0 to 100.0 mass fractions, F) cohesive monomers 0.05 to 10.0 mass fractions, and G) styrene monomers 0.0 to 20.0 mass fractions, and polymerised, d) added 10.0 to 30.0 mass fractions of the third composition containing H) alkylmetakrylates 50.0 to 100.0 mass fractions I) alkylakrylates 0.0 to 40.0 mass fractions and J) styrene monomers 0.0 to 10.0 mass fractions, and polymerised. Method is distinctive in that e) each polymerisation cycle is performed at temperature within 60 to 90°C and f) fractional content of all substances is selected so that total weight A) to J) per total weight of aqueous dispersion exceeds 50.0 mass %. Presented method is used to produce impact strength modifiers minimum content of which provides sufficient improvement of impact strength when tested on cut moulding composition samples, not degrading at the same time other important properties of moulding composition.

EFFECT: production of impact strength modifiers minimum content of which provides sufficient improvement of impact strength when tested on cut moulding composition samples, not degrading at the same time other important properties of moulding composition.

17 cl, 8 tbl

FIELD: composite polymer biomedicine materials containing polymer binder, biocompatible filler and carbon reinforcing filler.

SUBSTANCE: claimed composition contains polymer binder, namely mixture of polymethylmethacrylate or methylmethacrylate copolymer with methylacrylate and monomer methylmethacrylate in ratio of polymer part to monomer from 1:0.3 to 1:0.5 mass pts (50-72 mass pts); peroxide initiator (0.05-0.5 mass pts): carbon continuous fibers of 200-1000 filaments made of hydratcellulose fiber of polyacrylonitrile fiber (2-10 mass pts); and hydroxyapatite as filler (25-40 mass pts). Method for production of material from claimed composition useful in manufacturing of jowl implants also is disclosed.

EFFECT: polymer material having natural bone-like properties.

3 cl, 10 ex, 1 tbl

FIELD: organic chemistry, impregnating compositions.

SUBSTANCE: invention relates to composition used for impregnation of a polishing disk. The composition for impregnation of polishing disk comprises a binding agent aqueous solution representing a mixture of an aqueous emulsion of co-polymer prepared by emulsion polymerization of butyl acrylate, ethyl acrylate, methyl methacrylate and acrylic acid amide with the content of basic substance 50 ± 5%, liquid water glass and oxyethylated lanolin in the following ratio of components, mas. p. p.: copolymer of butyl acrylate, ethyl acrylate, methyl methacrylate and acrylic acid amide as measure for dry residue, 15-50; liquid water glass, 3-12; oxyethylated lanolin, 1-6, and water, 45-105. Invention provides enhancing stability and to reduce cost in making the polishing disk.

EFFECT: improved and valuable properties of composition.

2 tbl, 4 ex

FIELD: polishing materials.

SUBSTANCE: invention relates to manufacturing cotton polishing disks based on friction effect. The composition for making polishing disks comprises a binding agent aqueous solution wherein an aqueous emulsion of copolymer 15-50% of its total mass is used and prepared by emulasion polymerization of butyl acrylate, ethyl acrylate, methyl methacrylate and acrylic acid amide in the ratio, mas. p. p.: butyl acrylate, 140-160; ethyl acrylate, 140-160; methyl methacrylate, 205-231; acrylic acid amide, 17-19. Invention provides enhancing durability of polishing disks and to reduce cost in their making. Invention can be used for polishing table dishware and their parts made of stainless, devices for dental practice, jewelry articles, watches and so on.

EFFECT: improved and valuable properties of composition.

2 tbl, 9 ex

FIELD: polymer materials.

SUBSTANCE: composition contains, wt %: vinylidene fluoride 20-40, methyl methacrylate homopolymer or copolymer, acryl elastomer 5-18, and UV-absorbing substance 1-4. Invention also discloses jointly extruded films (options) and substrates covered by these films. Invention enables preparing composition with not rising UV-absorbing substances and manufacturing films showing high mechanical strength and providing high-quality adhesion to substrate while being resistant to radiation.

EFFECT: improved consumer's properties of films.

14 cl, 7 ex

FIELD: chemistry.

SUBSTANCE: invention relates to use of granular polyalkyl(meth)acrylate polymers with average particle size V50 from 30 to 70 mcm for increasing fatigue cracking resistance, which contain polyalkyl(meth)acrylate of moulding compounds. The invention proposes use of granular polyalkyl(meth)acrylate polymers with average particle size V50 from 30 to 70 mcm in a moulding compound, containing at least 65 wt % of an impact viscosity modifier obtained beforehand which contains at least one polyalkyl(meth)acrylate phase, at least 8 wt % of the said granular polyalkyl(meth)acrylates and from 0 to 20 wt % polyalkyl(meth)acrylates with molecular weight between 20000 and 350000 g/mol, whereby the sum of wt % of the components a) - c) is equal to 100 wt % to increase fatigue cracking resistance of said moulding compounds. Disclosed also are moulding compounds described above and corresponding moulded articles.

EFFECT: preparation of moulding compounds, extrusion of which enables to obtain fatigue cracking resistant moulded articles with a dull surface, having good strength characteristics.

23 cl, 1 tbl, 6 ex

Up!