Photolatent catalysts based on organometallic compounds

FIELD: chemistry.

SUBSTANCE: invention relates to organometallic latent catalytic compounds which are suitable as catalysts in polyaddition or polycondensation reactions which are catalysed by a Lewis acid type catalyst, particularly for cross-linking a blocked or non-blocked isocyanate or an isothiocyanate component with a polyol or a polythiol to form polyurethane. Polyaddition or polycondensation reactions are initiated by that a catalyst is released while holding in electromagnetic radiation in wavelength range of 200-800 nm. The latent catalytic compound has formula I or II, Me(FG)(m-x)Ax (I); Ax(FG)(m-1-x)Me-O-Me(FG)(m-1-x)Ax (II), where Me is Sn, Bi, Al, Zr or Ti; m is an integer from 1 to the coordination number of Me; x is an integer from 0 to (m-1); A is a C1-C20 alkyl, halogen, C7-C30 aralkyl, C1-C20 alkoxy group, C2-C10 alkanoyloxy group, C6-C18 aryl or C6-C18 aryl, which is substituted with one or more C1-C20 alkyls; and under the condition that if x is greater than 1, A are identical or different; and FG independently represents a group of formula (Z), (B), (C), (D), (E), (F), (G), (L) or (M)

,

where values of radicals are given in the claim. The invention also relates to a polymerisable composition and a method for polymerisation in the presence of said catalytic compounds. The invention enables to initiate the reaction only if desired by external activation, such as heating or light.

EFFECT: widening the operating window with a polymer mixture until the chain reaction begins.

12 cl, 14 tbl, 67 ex

 

The text descriptions are given in facsimile form.

1. The use of latent catalytic compounds for the reactions polyaddition or polycondensation, which kataliziruetsa reagents of the type of Lewis acid, and a latent catalyst compound contains photoactive group (FG)associated with metal, and the reaction of polyaddition or polycondensation initiate the fact that the catalyst is released upon exposure to electromagnetic radiation in the wavelength interval 200-800 nm, wherein the latent catalyst compound has the formula I or II,
Me(FG)(m-x)A x(I)
Ax(FG)(m-1-x)Me-O-Me(FG)(m-1-x)Ax(II),
where Me represents Sn, Bi, Al, Zr or Ti;
m means an integer from 1 to coordination number Me;
x is an integer from 0 to (m-1);
And represents alkyl, C1-C20, halogen, aralkyl7-C30alkoxygroup C1-C20alkanoyloxy C2-C20, aryl With6-C18or aryl With6-C18which is substituted by one or more alkilani C1-C20and provided that if x is greater than 1, And the same or different; and
FG independently from each other represent a group of formula (Z), (B), (C), (D), (E), (F), (G), (L) or (M)




where y is 0 or 1;
R1represents hydrogen or alkyl (C1-C6,
R3and R4represent hydrogen or R3and R4together represent S;
R2, R5, R6, R11, R12, R13, R14and R15represents hydrogen;
Y1and Y3independently from each other represents a direct bond, O, (CO)O, alkylen C1-C20alkylen C1-C20-O - or alkylene C1-C20-(CO)O-;
Y2is a direct link;
R7and R8independently of one another represent hydrogen, alkyl (C1-C6; or R7and R8together with the carbon atom to which they are attached, form tsiklogeksilnogo ring;
R16represents phenyl;
R17represents CN,
R19and R20together with the N atom to which they are attached, represent
R30represents hydrogen, alkyl (C1-C4or represents alkyl, which is substituted by phenyl, benzoyl or benzoylphenyl;
R31represents alkyl, C1-C12, phenyl or phenyl substituted by one or more R33;
R32represents Ala is l C 1-C12alkoxygroup C1-C4, phenyl or phenyl substituted by one or more R33;
R33represents alkyl, C1-C4alkoxygroup C1-C8, benzoyl; and
R34represents alkyl, C1-C4alkoxygroup C1-C4allylthiourea C1-C4or N(alkyl C1-C4)2;
R35and R36represent hydrogen;
R37represents phenyl substituted by one or more of Akilov C1-C12;
R38represents CN.

2. The use according to claim 1, where in the latent catalytic compound of formula I or II
Me represents Sn, Bi, Al, Zr or Ti;
m means an integer from 1 to coordination number Me;
x is an integer from 0 to (m-1);
And represents alkyl, C1-C20, halogen, alkoxygroup C1-C20alkanoyloxy2-C20or aryl With6-C18;
FG independently from each other represent a group of formula (Z), (B), (C), (D), (E), (F), (G), (L) or (M);
y is 0 or 1;
R1represents hydrogen or alkyl (C1-C6;
R2represents hydrogen;
R3and R4represent hydrogen, or R3and R4together represent S;
R5represents hydrogen;
R6represents hydrogen;
Y1and Y3independently of one another represent O, (CO)O, alkylen C1-C20alkylen C1-C20-O - or alkylene C1-C20-(CO)O-;
Y2is a direct link;
R7and R8independently of one another represent alkyl, C1-C6; or R7and R8together with the carbon atom to which they are attached, form tsiklogeksilnogo ring;
R11, R12, R13, R14and R15represent hydrogen;
R16represents phenyl;
R17represents CN;
R19and R20together with the N atom to which they are attached, represent

R30represents hydrogen, alkyl (C1-C4or alkyl, which is substituted by phenyl or benzoylphenyl;
R31represents alkyl, C1-C12, phenyl or phenyl substituted by one or more R33;
R32represents alkyl, C1-C12alkoxygroup1-C4, phenyl or phenyl substituted by one or more R33;
R33is alkoxygroup C1-C8or benzoyl;
R37represents phenyl substituted by one or more alkilani C1-C12;
R38represents CN.

3. The use according to claim 1 for making and blocked or non-blocked isocyanate or isothiocyanates component with the polyol to form polyurethane (PU).

4. Curable composition for industrial purposes, containing
(a) at least one blocked or non-blocked isocyanate or isothiocyanate component
(b) at least one polyol;
(C) at least one latent catalyst compound according to claim 1.

5. Curable composition according to claim 4, comprising in addition to components (a), (b) and (C) other additives (g), in particular photosensitizing compound.

6. Curable composition according to claim 4, which contains from 0.001 to 15 wt.%, preferably from 0.01 to 5 wt.% latent catalytic compounds on the composition of the entire composition.

7. The method of polymerization of compounds, which enables crosslinking in the presence of a Lewis acid, wherein the latent catalyst compound as defined in claim 1, add to the above compounds, and the resulting mixture is irradiated with electromagnetic radiation in the wavelength interval 200-800 nm and/or heat-treated.

8. The method according to claim 7, where the component that is capable of blending in the presence of a Lewis acid is a mixture of (a) a blocked or non-blocked isocyanate or isothiocyanates component and (b) polyol.

9. The method according to claim 7, characterized in that the mixture is irradiated with electromagnetic radiation and simultaneously with irradiation or after it will versaut thermal processing.

10. The method according to claim 7 to obtain adhesives, sealants, coatings, components, sealing, printing inks, printing plates, pins, cast connections or photostructurable layers.

11. The polymerized or stitched composition for industrial purposes, resulting from the curing of curable composition according to any one of claims 4 to 6.

12. Latent catalytic compound which has the formula I or II,
Me(FG)(m-x)Ax(I)
Ax(FG)(m-1-x)Me-O-Me(FG)(m-1-x)Ax(II),
where Me represents Sn, Bi, Al, Zr or Ti;
m means an integer from 1 to coordination number Me;
x is an integer from 0 to (m-1);
But is al the Il C 1-C20, halogen, aralkyl7-C30alkoxygroup C1-C20alkanoyloxy2-C20, aryl With6-C18or aryl With6-C18which is substituted by one or more alkilani C1-C20,and provided that if x is greater than one, And the same or different; and
FG independently from each other represent a group of formula (Z), (B), (C), (D), (E), (F), (G), (L) or (M)



,
y is 0 or 1;
R1represents hydrogen or alkyl (C1-C6,
R3and R4represent hydrogen or R3and R4together represent S;
R2, R5, R6, R11, R12, R13, R14and R15represents hydrogen;
Y1and Y3independently from each other represents a direct bond, O, (CO)O, alkylen C1-C20alkylen C1-C20-O - or alkylene C1-C20-(CO)O-;
Y2is a direct link;
R7and R8independently of one another represent hydrogen, alkyl (C1-C6; or R7and R8 together with the carbon atom to which they are attached, form tsiklogeksilnogo ring;
R16represents phenyl;
R17represents CN,
R19and R20together with the N atom to which they are attached, represent
R30represents hydrogen, alkyl (C1-C4or represents alkyl, which is substituted by phenyl, benzoyl or benzoylphenyl;
R31represents alkyl, C1-C12, phenyl or phenyl substituted by one or more R33;
R32represents alkyl, C1-C12alkoxygroup C1-C4, phenyl or phenyl substituted by one or more R33;
R33represents alkyl, C1-C4alkoxygroup C1-C8, benzoyl; and
R34represents alkyl, C1-C4alkoxygroup C1-C4allylthiourea C1-C4or N(alkyl C1-C4)2;
R35and R36represent hydrogen;
R37represents phenyl substituted by one or more of Akilov C1-C12;
R38represents CN;
provided that compounds in which x represents 3, if Me is a Sn and FG represents a group of formula (Z).



 

Same patents:

FIELD: chemistry.

SUBSTANCE: in formula :

A denotes either an amine residue after removing n primary n aliphatic amino groups and m HX- groups, or together with R7 denotes a (n+2)-valent hydrocarbon residue with 3-20 carbon atoms, which optionally contains at least one heteroatom, particularly in form of oxygen an ether or tertiary amine nitrogen; n equals 1-4, m equals 0-4; under the condition that (m+n) equals 2-5; R1 and R2 either, independently of each other, each denote a univalent hydrocarbon residue with 1-12 carbon atoms, or together denote a divalent hydrocarbon residue with 4-12 carbon atoms, which is part of an optionally substituted carbocycle with 5-8, preferably 6, carbon atoms; R3 denotes a hydrogen atom or an alkyl group or an arylalkyl group or an alkoxycarbonyl group, particularly with 1-12 carbon atoms; X denotes O or S, or N-R6, or N-R7, where values of radicals R4-R6 are given in the claim. The invention also relates to a curable or cured composition containing said compound, use of the compound in adhesives, sealants, filling compounds, coatings and an article containing the curable composition.

EFFECT: higher compound properties.

21 cl, 13 tbl, 48 ex

FIELD: chemistry.

SUBSTANCE: present invention relates to a curable composition consisting of two components K1 and K2, which contain (a) at least one aromatic polyisocyanate P, which contains isocyanate groups, (b) at least one dialdimine A of formula , where X is a diamine residue DA with two primary amino groups after separating said two amino groups; and Y1 and Y2 are independently a univalent hydrocarbon residue with 1-12 C atoms; and Y3 is a univalent hydrocarbon residue which optionally has at least one heteroatom, particularly oxygen in form of an ether, a carbonyl or ester group, and (c) compounds which are reactive with respect to isocyanate groups, particularly water and/or polyols and/or polyamines, under the condition that at least one of the two primary amino groups of diamine DA is an aliphatic amino group, and that two primary amino groups of diamine DA differ from each other either by the number of hydrogen atoms at the carbon atoms (Cα), which are in the α-position to the corresponding amino group, at least one, or the number hydrogen atoms at the carbon atoms (Cβ), which are in the β-to the corresponding amino group, at least two. Described also is a curable composition obtained after reacting said composition with water, use of the disclosed compositions as an adhesive, a sealant, filling compound or coating, methods of gluing, sealing and coating using said curable composition, and an article which is glued, sealed or coated using said methods.

EFFECT: obtaining moisture-curable polyurethane compositions which are stable during storage, are characterised by long curing time before gluing and high rate of hardening and harden without bubbles.

23 cl, 10 tbl, 24 ex

FIELD: process engineering.

SUBSTANCE: invention relates to food packing materials, particularly, to production of packing flexible laminate. At least, one plastic film and, at least, other plastic film, metal foil or paper are coated with adhesive to make laminate layers and bonded together to make said laminate. Then, laminate is continuously irradiated at the line with microwave radiation station for hardening the adhesive.

EFFECT: faster hardening.

9 cl, 2 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to an adhesive composition for mutual attachment of two objects and a method of attaching an article to a substrate and can be used to attach articles to building walls and similar bases. The adhesive composition is double-packed in form of mounting set. The adhesive composition consists of a mixture of an aerobic adhesive substance and a hydrophilic material. The set has two containers for separate storage of the aerobic adhesive substance and the hydrophilic material. The adhesive aerobic substance is silane MS polymers. The method of attaching an object to a base using the adhesive composition involves mixing the aerobic adhesive substance with the hydrophilic substance, attaching the object by pressing a layer of the adhesive composition to the base and hardening the adhesive composition.

EFFECT: invention provides fast hardening of the adhesive layer and easier attachment of objects to each other.

8 cl, 3 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to moisture-cured hot-melt adhesives. Disclosed is a moisture-cured hot-melt adhesive composition containing at least one silane group-containing polyurethane prepolymer of formula (I), where R1 is an n-valent organic radical of prepolymer P, which is obtained from at least one polyol and at least one polyisocyanate and has at least n isocyanate groups, followed by removal of the n isocyanate groups; R2 is a C1-C10 alkyl group; R3 is a linear or branched C1-C10 alkylene group; X is a hydrolysable radical OR4, wherein R4 is a C1-C10 alkyl group which can contain 1 or 2 oxygen atoms of an ether; a equals 0, 1 or 2; n equals 2 or more; where the prepolymer of formula (I) is obtained from reaction of the polyurethane prepolymer P with a mercaptosilane of formula (II), wherein the prepolymer P is solid at room temperature and does not have an additional silane group, and the composition has longer storage life (viscosity stability) in uncured form. Disclosed also is a method for adhesive binding of substrates using the disclosed adhesive composition and an article obtained using the adhesive.

EFFECT: disclosed adhesive compositions do not form bubbles neither when heated nor during curing and have stable viscosity at high temperatures.

20 cl, 7 tbl

FIELD: chemistry.

SUBSTANCE: present invention relates to an aqueous polyurethane-polyurethane-urea dispersion which is used as a starting adhesive material in dispersion adhesives, as well as a method of producing such a dispersion, use thereof, adhesive compositions containing said dispersion and adhesive composite materials. The aqueous polyurethane-polyurethane-urea dispersion is composed of: A) one or more di- or higher functional polyols, having average molecular weight of 400-5000 Da, B) optionally one or more di- or higher functional polyol components, having molecular weight of 62-399 Da, C) one or more di- or higher polyisocyanate components, and D) a mixture (D) of primary and/or secondary monoamine compounds D1) and primary and/or secondary diamine compounds D2), wherein at least one of the components (D1) and/or (D2) contains sulphonate groups, wherein the average amine functionality of the mixture (D) is 1.65-1.95, and the equivalent ratio of NCO groups in the NCO prepolymer and total number of amine and hydroxyl groups of the mixture (D) which react with the isocyanate is equal to 1.04-1.9.

EFFECT: obtaining stable aqueous dispersions of adhesives without the need to use an emulsifying agent, films from which have improved initial thermal stability and high final thermal stability.

14 cl, 10 ex, 1 tbl

FIELD: chemistry.

SUBSTANCE: present invention relates to an aqueous polyurethane-polyurethane-urea dispersion which is used as a starting adhesive material in dispersion adhesives, as well as a method of producing such a dispersion, use thereof, adhesive compositions containing said dispersion and adhesive composite materials. The aqueous polyurethane-polyurethane-urea dispersion is composed of: A) one or more di- or higher functional polyols, having average molecular weight of 400-5000 Da, B) optionally one or more di- or higher functional polyol components, having molecular weight of 62-399 Da, C) one or more compounds which are monofunctional when reacting with a polyisocyanate and which have ethylene oxide content of at least 50 wt % and molecular weight of at least 400 Da, D) one or more di- or higher polyisocyanate components, and E) a mixture (E) of primary and/or secondary monoamine compounds E1) and primary and/or secondary diamine compounds E2), wherein at least one of the components (E1) and/or (E2) contains sulphonate groups, wherein the average amine functionality of the mixture (E) is 1.65-1.98, and the equivalent ratio of NCO groups in the NCO prepolymer and the total number of amine and hydroxyl groups of the mixture (E) which react with the isocyanate is equal to 1.04-1.9.

EFFECT: obtaining stable aqueous dispersions of adhesives without the need to use an emulsifying agent, films from which have improved initial thermal stability and high final heat stability.

14 cl, 4 ex, 1 tbl

FIELD: chemistry.

SUBSTANCE: adhesive composition contains a polyfunctional isocyanate, polyether polyol and a catalyst. The catalyst consists of at least one organic compound of iron and at least one chelating ligand. The multicomponent adhesive composition is prepared in form of at least two inter-reacting chemical components. One of the at least two inter-reacting chemical components contains a polyfunctional isocyanate and a catalyst, and the other contains polyether polyol. The multicomponent adhesive composition is used to produce articles from bound lignocellulose composite based on a lignocellulose substrate, especially for making oriented fibre panels.

EFFECT: invention enables to obtain articles using filler with high moisture content, which are structured at low pressing temperatures without reducing efficiency of the press.

4 tbl, 1 ex, 17 cl

FIELD: chemistry.

SUBSTANCE: moisture-curable and biodegradable adhesive which contains a reaction product of: (a) an isocyanate component having an average functionality of at least 2, the isocyanate component being selected from a group consisting of lysine diisocyanate and derivatives thereof, lysine triisocyanate and derivatives thereof, and combinations thereof; (b) an active hydrogen component having an average functionality greater than 2.1, the active hydrogen component containing a component with a hydroxyl functional group; and (c) an ionic salt component having an average hydroxyl or amino functionality, or combination thereof, of at least 1, selected from a group consisting of ammonium salts, halides, sulphonates, phosphonates, carboxylates and combinations thereof.

EFFECT: obtaining a moisture-curable and biodegradable adhesive.

18 cl, 1 dwg, 17 ex

FIELD: chemistry.

SUBSTANCE: adhesive polyurethane composition consists of a prime coat and polyurethane adhesive, comprising urethane rubber and ethyl acetate, applied on its surface. The prime coat consists of a solution of polyurethane thermoplastic elastomer with ethyl acetate in ratio: polyurethane thermoplastic elastomer 10-18 wt % and ethyl acetate - the balance. The polyurethane adhesive contains a solution of polyurethane thermoplastic elastomer and a mixture of polar organic solvents consisting of ethyl acetate and methylene chloride, with the following ratio of components: polyurethane thermoplastic elastomer 17-27 wt %; methylene chloride 7-10 wt % and ethyl acetate - the balance. The polyurethane adhesive can contain perchlorovinyl resin as a target additive in amount of 0-10% to the total weight of the adhesive.

EFFECT: low cost and improved adhesion properties of the adhesive composition and cohesion strength characteristics of the adhesive joints.

2 cl, 2 tbl

FIELD: chemistry.

SUBSTANCE: in formula :

A denotes either an amine residue after removing n primary n aliphatic amino groups and m HX- groups, or together with R7 denotes a (n+2)-valent hydrocarbon residue with 3-20 carbon atoms, which optionally contains at least one heteroatom, particularly in form of oxygen an ether or tertiary amine nitrogen; n equals 1-4, m equals 0-4; under the condition that (m+n) equals 2-5; R1 and R2 either, independently of each other, each denote a univalent hydrocarbon residue with 1-12 carbon atoms, or together denote a divalent hydrocarbon residue with 4-12 carbon atoms, which is part of an optionally substituted carbocycle with 5-8, preferably 6, carbon atoms; R3 denotes a hydrogen atom or an alkyl group or an arylalkyl group or an alkoxycarbonyl group, particularly with 1-12 carbon atoms; X denotes O or S, or N-R6, or N-R7, where values of radicals R4-R6 are given in the claim. The invention also relates to a curable or cured composition containing said compound, use of the compound in adhesives, sealants, filling compounds, coatings and an article containing the curable composition.

EFFECT: higher compound properties.

21 cl, 13 tbl, 48 ex

FIELD: chemistry.

SUBSTANCE: present invention relates to a curable composition consisting of two components K1 and K2, which contain (a) at least one aromatic polyisocyanate P, which contains isocyanate groups, (b) at least one dialdimine A of formula , where X is a diamine residue DA with two primary amino groups after separating said two amino groups; and Y1 and Y2 are independently a univalent hydrocarbon residue with 1-12 C atoms; and Y3 is a univalent hydrocarbon residue which optionally has at least one heteroatom, particularly oxygen in form of an ether, a carbonyl or ester group, and (c) compounds which are reactive with respect to isocyanate groups, particularly water and/or polyols and/or polyamines, under the condition that at least one of the two primary amino groups of diamine DA is an aliphatic amino group, and that two primary amino groups of diamine DA differ from each other either by the number of hydrogen atoms at the carbon atoms (Cα), which are in the α-position to the corresponding amino group, at least one, or the number hydrogen atoms at the carbon atoms (Cβ), which are in the β-to the corresponding amino group, at least two. Described also is a curable composition obtained after reacting said composition with water, use of the disclosed compositions as an adhesive, a sealant, filling compound or coating, methods of gluing, sealing and coating using said curable composition, and an article which is glued, sealed or coated using said methods.

EFFECT: obtaining moisture-curable polyurethane compositions which are stable during storage, are characterised by long curing time before gluing and high rate of hardening and harden without bubbles.

23 cl, 10 tbl, 24 ex

FIELD: process engineering.

SUBSTANCE: invention relates to multilayer combined materials. Proposed material comprises: top layer of textile web with porous polymer layer applied on its wrong side, adhesion layer and bottom layer. Porous polymer layer is formed on said working side and consists of the following components in wt %: polyesterurethane - 92.08-94.84; dimethyl formamide - 0.759-1.106; surfactant - 0.759-1.106; di-(2-ethylhexyl)phthalate - 0.759-1.106; microcrystalline cellulose - 2.884-4.604. Said composition is diluted by dimethyl formamide to viscosity of 170-180 poises.

EFFECT: optimised thermophysical and hygienic properties.

6 cl, 5 tbl, 2 ex

FIELD: chemistry.

SUBSTANCE: present invention relates to versions of a water-based coating composition which is suitable for use particularly in the aerospace field. The water-based coating composition contains: (a) an essentially anhydrous basic component containing at least one hydrophilic polyol resin and at least one hydrophobic polyol resin, (b) an activating component containing at least one hydrophobic polyisocyanate and (c) water, wherein said composition contains 1-3 wt % of an organic solvent of the total weight of the water-based coating composition and component (a), (b) and (c) are mixed shortly before applying the water-based coating composition. In one version of the composition, the hydrophilic polyol resin can be selected from a group consisting of polyesters, polyethers, polyurethanes, caprolactones, alkyde resins and combinations thereof. Described also is a coating made using the polyurethane compositions disclosed herein.

EFFECT: obtaining water-based coating compositions which are stable during storage and have significantly low content of volatile organic compounds, coatings from which have improved technical characteristics such as impact resistance, specular gloss and longevity.

15 cl, 17 tbl, 7 ex

FIELD: chemistry.

SUBSTANCE: invention relates to pipeline construction and is used in field and basic conditions when laying underground main pipelines for protection thereof from corrosion, mechanical damage and during construction of gas or liquid transporting field and industrial pipelines in conditions of permanently frozen soil, when laying pipelines on swamps, on waterlogged areas, particularly for repairing anti-corrosion coatings of oil pipelines, oil product pipeline and gas pipelines during repair thereof in field conditions, including without stopping transportation of the product, and during corrosion protection of piping of compressor stations at pipeline temperature of 70-90°C, on a section of a pipeline transporting gas at temperature above zero after a compressor station, e.g. at a section of a discharge line transporting compressed gas at temperature of plus 40°C. Versions of anti-corrosion paint for obtaining an external polyurethane two-component protective coating are given. The paint is obtained by mixing component A and component B - polyisocyanate based on diphenyl methane diisocyanate with equivalent mass of 131-135. Component A is a suspension of substances in a hydroxyl-containing polyatomic alcohol with ether and ester bonds with equivalent mass of 230….250.

EFFECT: providing high rate of hardening of the coating with improved protective properties thereof, which prevents development of underfilm and stress corrosion on the pipeline for a period of time comparable with the life of the pipeline.

6 cl

FIELD: chemistry.

SUBSTANCE: invention relates to construction and can be used in road construction. The coating contains a polymer base - two liquid low-molecular weight rubbers with terminal epoxy and carboxyl functional groups, copolymerisable and three-dimensionally cross-linked by an agent. Said rubber is polydiene isoprene urethane rubber with terminal epoxy groups and polybutadiene rubber with terminal carboxyl groups. The coating also contains filler in form of polyfractional silicon dioxide and additionally contains processing additives which include a three-dimensionally cross-linking agent with epoxy functional groups which are antipodal with respect to carboxyl groups, a thixotropic booster and an elastomer pigment - technical carbon and a catalyst for three-dimensional cross-linking rubber. The ingredients are in the following ratio, wt %: two liquid low-molecular weight rubbers with terminal epoxy and carboxyl functional groups - 9.0-18.0, polyfractional silicon dioxide - 77.0-86.5, process additives - 4.5-5.0.

EFFECT: improved waterproofing properties and frost-resistance of road asphalt.

2 cl, 1 tbl, 2 ex

FIELD: chemistry.

SUBSTANCE: invention relates to use of nanomaterials in wire enamel for improving thermal properties of enamel. The nanomodified wire enamels are usually used in making insulated winding wire. The polymer base of wire enamel is selected from a group comprising polyamideimide, polyester, polyesterimide, polyurethane and mixtures thereof. The nanomaterial is selected from a group comprising nano-oxides, metal nano-oxides, metal oxides or hydroxides of aluminium, tin, born, germanium, gallium, lead, transition metals, lanthanides, actinides and mixtures thereof. The nanomaterial is also selected from a group comprising nano-oxides, metal nano-oxides, metal oxides and hydroxides of aluminium, silicon, titanium, zinc, yttrium, vanadium, zirconium, nickel and mixtures thereof. After applying enamel on the wire and curing thereof, the wire exhibits improved thermal and mechanical properties.

EFFECT: improved thermal properties of enamel.

8 cl, 6 tbl

FIELD: chemistry.

SUBSTANCE: radiation curable secondary coating composition contains an alpha-oligomer which does not contain urethane, obtained by reacting the following components: (a) an acrylate compound selected from an alcohol-containing acrylate or alcohol-containing methacrylate compound, (b) an anhydride compound, (c) an expoxide-containing compound, (d) an optional chain extending compound, and (e) an optional catalyst. Said composition additionally contains a beta-oligomer, said beta-oligomer being different from said alpha-oligomer, said beta-oligomer obtained by reacting 1) hydroxyethyl acrylate; 2) one or more diisocyanates; 3) a glycol selected from a group consisting of polyether polyols and polyester polyols. The polyester polyols are obtained by reacting a polyatomic alcohol with a polybasic acid, wherein the polyether polyols are selected from a group consisting of polyethylene glycol, polypropylene glycol, a copolymer of polypropylene glycol and ethylene glycol, polytetramethylene glycol, polyhexamethylene glycol, polyheptamethylene glycol and polydecamethylene glycol; and 4) a catalyst. The invention also relates to a wire and an optical fibre having a secondary coating made from said composition.

EFFECT: high rate of curing the coating while ensuring desirable coating properties, such as modulus of elasticity, impact viscosity and elongation.

8 cl, 5 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing self-curing polyurethane dispersions, use thereof as coating agents, coating agents containing these self-curing aqueous dispersions, a method of coating substrates, as well as substrates treated with coating agents. The method of producing self-curing aqueous polyurethane dispersions involves the following steps: I. reacting al) polyisocyanate with a mixture of, a2) 2,2-bis(hydroxymethyl)alkanecarboxylic acid as an anionic hydrophilisation agent containing a group which is reactive towards isocyanate and, a3) at least one polyol component with average OH-functionality >1, wherein any mixture from a2) and a3), or component a1) k) contains at least one catalyst selected from a group consisting of tertiary amines, tin, zinc or bismuth compounds; II obtaining an OH-functional polyurethane without NCO-groups from step I, which then; III. a4) is mixed with a reactive blocking agent for isocyanate groups, selected from a group consisting of butanone oxime, diisopropylamine or tert-butylbenzylamine, 3,5-dimethylpyrazole, triazole, respectively, mixture thereof; IV. subsequent reaction of that mixture from step III with a5) one or more polyisocyanates selected from group a1), wherein these polyisocyanates are the same as or are different from al), and subsequent V. obtaining a physical mixture of OH-functional polyurethane without NCO-groups and a blocked polyisocyanate from step IV, after which after either; VI. acid groups of OH-functional polyurethane a6) are completely or partially deprotonated by adding a neutralising agent; VII. and the polyurethane obtained at step VI id dispersed in water, or step VII is carried out before step VI.

EFFECT: obtaining self-curing aqueous polyurethane dispersions containing negligible amounts of cosolvent.

14 cl, 1 tbl, 5 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing coating material. Disclosed is a method of producing coating material in form of powdered lacquer or a fluid resin, characterised by that one or more alcohols or polyols react with one or more silanes selected from a group consisting of (isocyanatomethyl)methyl-dimethoxysilane, 3-isocyanatopropyl-trimethoxysilane and 3-isocyanatopropyl-triethoxysilane, to form a covalent bond between the alcohol or polyol and the silane such that the reaction product is a high-molecular weight silane which is cured directly using a catalyst, wherein all alcohol or polyol organic functional groups participate in the reaction with the silane organic functional group. Coating material and use thereof are also disclosed.

EFFECT: disclosed method enables to obtain coating material which can be used to make scratch-resistant coatings.

12 cl, 4 ex

FIELD: chemistry.

SUBSTANCE: invention relates to polyamide-based printed films which are used as casings for food products, particularly artificial sausage casing. Disclosed is a printing ink system for printing on (co)polyamide-based films. Said system contains a radically curable primer ink and UV radiation radically curable printing ink which forms an almost colourless layer of primer ink. The primer ink contains a reactive compound which, in one molecule, contains a group capable of bonding with a (co)polyamide surface and an ethylenically unsaturated group which can undergo radical-initiated polyaddition. The invention also discloses a (co)polyamide-based single- or multilayer film which is printed with said printing ink system and a method for production thereof.

EFFECT: printing ink system enables to print on (co)polyamide-based food films with high adhesion to the film, resistance to friction, scratching even without an additional lacquer coat, mechanical and thermal processing, resistance to migration of ink components, which prevents foreign odours from food products.

27 cl, 1 ex

Up!