Water-diluting polymer composition for coatings. RU patent 2495160.

IPC classes for russian patent Water-diluting polymer composition for coatings. RU patent 2495160. (RU 2495160):

C09D163/00 - Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins

Another patents in same IPC classes:

High diffusion power cathodic electrodeposition composition for obtaining high hardness and wear resistant coatings / 2486220
Invention relates to a composition with high diffusion power, which is meant for obtaining coatings at the cathode via electrodeposition. The composition contains an epoxy-amine adduct, which is modified by partially blocked toluene diisocyanate, a pigment paste stabilised by said adduct, a neutraliser - acetic acid, butylene glycol, phenoxy propanol and water. The composition additionally contains powdered polyphenylene sulphide with graphite and silicon carbide additives, treated with an nonionic surfactant - OP-10.

Photolatent catalysts based on organometallic compounds / 2489450
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)

Aldimines and aldimine-containing compositions / 2489421
In formula :

Asymmetric dialdimine-containing polyurethane composition / 2485143
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.

Laminar combined material / 2482967
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.

Water-based polyurethane coatings / 2482135
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.

External polyurethane two-component protective coating (versions) / 2481367
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.

Waterproof frost-resistant road asphalt coat / 2473581
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.

Nanomodified wire enamels and enamelled wire / 2473579
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.

D 1364 bt secondary coatings on optical fibre / 2472831
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.

Solvent-free self-curing polyurethane dispersions / 2471815
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.

Halogen-free fire retarders for epoxy resin systems / 2488615
Invention relates to epoxy resin-based compositions which contain fire retarder. The composition contains epoxy resin and a phosphate-containing fire retarder. The fire retarder is selected from salts of metals of Group 1 saccharide phosphate, salts of Group 2 glycerophosphate, and salts of metals of Group 1 polyphosphate.

Fused epoxy coating compositions containing magnesium oxide / 2483090
Powdered epoxy coating composition for coating a substrate contains: (a) about 50 wt % to about 90 wt % of at least one epoxy resin; (b) about 1 wt % to about 30 wt % of at least one catechin novolac type adhesion promoter; and (c) about 0.1 wt % to about 5 wt % magnesium oxide. The coating can also contain about 10 wt % to about 48 wt % inorganic filler.

Primer compositions for adhesive binding systems and coatings / 2482148
Present invention relates to an aqueous primer composition. The aqueous primer composition contains: a. at least one composition of a heat-curable self-emulsifying epoxy resin obtained by reacting (a) epoxy resin, (b) a polyatomic phenol and (c) an amine-epoxide adduct, where the amine-epoxide adduct is a product of reaction of an aromatic polyepoxide with polyoxyalkylene amine; b. at least one composition of a heat-curable non-self-emulsifying resin having an epoxide base which has epoxide functionality from 1.8 to 4 and epoxide equivalent weight from 100 to 200; c. water; and d. at least one curing agent. The invention also describes a method of producing the aqueous primer composition.

Powdered coating composition / 2478678
Invention relates to heat-curable powdered compositions based on an epoxide oligomer and can be used to make coatings with improved barrier properties. The powdered composition contains the following (pts.wt): epoxy resin - 96.7-90.3, dicyandiamide curing agent - 1.3-2.5, flow agent - 0.6-0.9, aluminosilicate nanoparticles - 0.5-5, anti-crater additive - 0.4-0.6 degassing agent - 0.5-0.7. The aluminosilicate nanoparticles used are: natural montmorillonite, a quaternary ammonium salt modified salt of the following structure [(HT)2N(CH3)2]+Cl-, where HT is dehydrogenated tall oil, or halloysite.

Enamel for protective coating / 2472829
Disclosed enamel contains the following (pts.wt): semi-finished enamel from epoxy resin-base - 100, an accelerator - 0.1-3.0 and a hardener - 50-90. The semi-finished enamel contains a film-forming diane resin-base which contains 48-72% diane epoxy resin, 10-25% modifier, 10-30% catalyst obtained by epoxidation of a hydroxyphenylene oligomer from alkyl resorcinol with degree of polycondensation n=0-2 at temperature of 180-250°C, pigments, filler and a rheological agent. Components of the semi-finished enamel are in the following ratio, wt %: film-forming diane epoxy resin-base - 88-92; pigments, filler, rheological agent - 8-12.

Aqueous binder in coating for corrosion protection of wood and concrete / 2472828
Binder mixture contains (wt %): 70-98% chain-extended epoxy amine adducts A and 2-30% carboxy functional polyesters B which contain a limited amount of aromatic components in weight ratios of up to 15% and have acid number of 4-50 mg/g. A coating composition is prepared from the binder mixture and then applied onto a substrate.

Resin paint compositions for high internal permeability cationic electrodeposition, containing aromatic sulphonic acid and rheology modifier with urethane functional group / 2467043
Invention relates to a resin paint composition for high internal permeability cationic electrodeposition and can be used as a primer coat. The composition contains a basic resin which contains products of reaction of polysulphide compounds with epoxy compounds and products of reaction of amine compounds and epoxy compounds; a resin curing agent which contains products of reaction of modified polyol compounds; aromatic sulphonic acid; and a substance which provides rheologic properties, containing a urethane functional group.

Barrier coating composition / 2462493
Composition contains the following (pts.wt): a branched polyamide with free primary and secondary amine groups with molecular weight from 2000 to 3500 - 0.1-0.28, an epoxide oligomer 0.025-0.07, an organic solvent 0.560-0.835, a fluoropolymer with content of hydroxyl groups of 1.3-2.5 - 0.02-0.05, a plasticiser - 0.01-0.02 and a catalyst in form of a salt of ethylhexanoic acid - 0.01-0.02.

Method of applying two-layer antifriction coatings on wheel-rail tribocontact surface / 2461666
Flame spraying of epoxy powder composition is carried out. Prior to flame spraying, first 0.01-3.0 mm-thick layer of coating is applied on metal surface by electric spark method, coating hardness exceeding that of metal to be protected, using the electrode of compacted mix of metal powder A and heat-resistant mineral powder B at the ratio of A:B=99:1-80:20. Thereafter said layer is treated by phosphating composition. Second layer is applied by powder flame spraying. Said powder consists of solid epoxy resin modified by fluorine rubber at stretch equipment with resin-rubber ratio of 97:3-70:30, imidazole hardener and filler composed of metal powder mix and antifriction mineral with high surface hardness. Powder is applied in layer of thickness varying from 0.5 to 3 mm and comprises the following components, in wt %: aforesaid solid epoxy resin modified by fluorine rubber - 100, imidazole hardener - 2-10, metal powder - 90-150, antifriction mineral - 0.4-12.

FIELD: metallurgy.

SUBSTANCE: water-diluting polymer composition for coatings includes epoxyamine resin, polyurethane hardener, modifying additive and deionised water; at that, as polyurethane hardener, there used is polyurethane containing 1.3-14.9 % of carbamide groups, 15.0-30.7 % of urethane groups, 0.33-1.80 % of biuretic groups, and as modifying additive there used is 2-mercaptobenzothiazole or 2-phenyl-4-chromenone, or 2,3-benzopyridine, or hexamethylenetetramine at the following component ratio, wt %: epoxyamine resin 5.8-8.8; polyurethane hardener 5.2-7.8; modifying additive 1.0-3.0; deionised water is the rest.

EFFECT: obtaining coatings with low moisture absorption, adhesion that is stable in water, stable physic and mechanical properties at thermal ageing, which are capable of being hardened at high speeds.

4 tbl, 1 ex

The invention relates to the field of reception of compositions based on epoxy-amine and polyurethane oligomers for coatings on metal produced by the method of cathodic electrodeposition.

Known [US patent # 4468307, C25D 13/06] cationic polymer materials for electro-deposition. They have good corrosion resistance, but do not have a stable physical and mechanical properties during operation.

Closest to the claimed composition is essentially a technical composition for coating [US patent # 5510400, C08L 63/02, C09D 5/44], including cation resin, polyurethane hardener and pigmentary paste in the following ratio of components, mass%:

resin

10-88

Polyurethane hardener

10-50

Pigment paste

2-50

The specified composition is relatively stable over time, stirring and forms a corrosion resistant coatings at a temperature of 100-160°C.

However composition does not provide high speed of curing (contents gel faction after 30 minutes at 100 C is 78-80%) and does not give possibility to get coverage with low water absorption, is stable in water adhesion and stable physical and mechanical properties at the .

The technical goal of this invention - creation of polymer coatings with low water absorption, is stable in water adhesion, stable physical and mechanical properties at the capable of cure with high speeds at a temperature of 100-160°C. the problem is solved formulated composition, including resin, polyurethane hardener, modifying additive and deionized water, where as polyurethane hardener use polyurethane, containing carbamide groups 1,3-14,9%, urethane groups 15-30,7%, groups of 0.33-1,8%, and for modifying additive use 2-, 2-phenyl-4-, 2,3-, hexamine with the following component ratio, mass%:

resin

5,8-8,8

Polyurethane hardener

the 5.2-7,8

Modifying admixture

1-3

Deionized water

rest

As resin use oligomers with a molecular mass of 550-1300, content Amin 2,7-14,8%, content of hydroxyl groups 2,2-9,6%, obtained by interaction of epoxy with amines.

Polyurethane hardener is produced by interaction of diisocyanate with amines, alcohols and water. As diisocyanates using 2,4-toluene diisocyanate, 2,4 - and 2,6-diisocyanate ratio (mass%) 80:20 and 65:35, 4,4'-diphenylmethanediisocyanate, , .

As amines use diethylamine, monoethanolamine and .

From alcohols used I-propanol, butanol, , . Characteristics hardeners are presented in table 1.

Modifying additives: 2- (GOST 739-41), 2-phenyl-4- (TU 6-09-50-2366-80), 2,3- (TU 6-09-4325-76), hexamine (GOST 1381-73).

Polyurethane hardener obtained as follows.

Diisocyanate dissolved in cyclohexanone, add tin, heated reaction mass to 50 C and enter Amin, maintained at stirring 20 minutes, then injected alcohol, stand for 30 minutes and then load the water, followed by exposure within 30 minutes. The entire transformation groups in urea, urethane and .

Structure hardeners confirmed by IR-spectroscopy and chemical analysis.

Table 1

Characteristics of polyurethane hardeners.

The composition of polyurethane,% mass

The masses. Share, %

Diisocyanate

Alcohol Amin Water

Urethane groups

Carbamide groups

Б groups

2,4-toluene diisocyanate

Isopropanol

Diethylamine

59,9 20,4 19,9 0,4 20,7 14,9 1 2

2,4-toluene diisocyanate

Isopropanol

Diethylamine

61,3 23,3 12,9 0,5 22,8 2,9 0,33 3

4,4'-

Diethylamine

54,1 43,5 1,6 0,8 21,6 1,3 0,62 4

2,4-toluene diisocyanate

Diethylamine

53,7 27,8 18 0,4 18,5 13,5 0,86 5

Diethylamine

45,3 47,8 5,9 1 23,8 4,8 0,8 6

Monoethanolamine

50,6 45,7 2,8 0,9 22,8 2.9 0,33 7

4,4'-

Butanol

Diethylamine

20 9,8 2,5 16,7 7,2 1,8 67,7 8

2,4 - and 2,6-toluene diisocyanate

Butanol

Diethylamine

(65:35) 32,7 5 3,1 27 3,6 2,3 59,2 9

2,4 - and 2,6-toluene diisocyanate

(80:20) 51,6 2,7 1 32,2 1,6 0,93 44,7 10

4,4'-

Diethylamine

58,1 27,4 13,6 0,9 14 10,3 0,62

The invention is illustrated by the following examples.

Example 1: paint and varnish composition for the electrodeposition receive a combination of resin, urethane hardener and modifying additive with stirring at a temperature of 20-25 C) for 30 minutes, then neutralize glacial acetic acid and diluted with deionized water. Next organic solvent is evaporated under reduced pressure of 0,8-0,9 kg/cm2 and a temperature of 70-75°C. thus receive water cation dispersion of.

As pigments in the composition can be entered soot, kaolin, lead silicate, titanium dioxide.

Compositions compositions are given in table 2.

Table 2

Compositions compositions.

Components

Ratio, mass%

resin (EQ. 182,5)

8,0

Polyurethane hardener from the sample №1*

6,4

Modifying admixture

2,0

Deionized water

rest 2

resin (EQ. 215,0)

8,8

Polyurethane hardener from the sample №2

5,6

Modifying admixture

2,0

Deionized water

rest 3

resin (EQ. 160,5)

6,0

Polyurethane hardener from the sample №3

7,2

Modifying admixture

2,0

Deionized water

rest 4

resin (EQ. 182,5)

6,0

Polyurethane hardener from the sample №4

5,3

Modifying admixture

2,0

Deionized water

rest 5

resin (EQ. 182,5)

7,2

Polyurethane hardener from the sample №5

7,2

Modifying admixture

2,0

Deionized water

rest 6

resin (EQ. 182,5)

7,9

Polyurethane hardener from the sample №6

7,8

Modifying admixture

2,0

Deionized water

rest 7

resin (EQ. 213)

6,9

Polyurethane hardener from the sample №7

5,8

Modifying admixture

2,0

Deionized water

rest 8

resin (EQ. 182,5)

6,8

Polyurethane hardener from the sample №8

5,2

Modifying admixture

2,0

Deionized water

rest 9

resin (EQ. 182,5)

7,7

Polyurethane hardener from the sample №9

7,2

Modifier additive

2,0

Deionized water

rest 10

resin (EQ. 135,3)

5,8

Polyurethane hardener from the sample №10

8,1

Modifying admixture

2,0

Deionized water

rest

* - the data from the table 1

Coating get electrodeposition on the cathode songs (table 2) samples of steel 3 at a voltage of 100-250 V and time 15-210 C.

Curing of the coating was carried out at 100-160°C.

Properties of the coating are listed in table 4.

The stability of the songs was determined by its ability to sustain aggregate stability while stirring.

Adhesion was determined according to GOST 15140-78.

Impact strength was determined according to GOST 4765-73.

Transverse elasticity of film was determined according to GOST 6806-73 state standard.

Water absorption was assessed by changes in the mass of the film after soaking in water for 7 days.

Corrosion resistance determined dived to 240 hours of 5% NaCl solution (55 C) in violation of the continuity of coating.

The data indicate that compared with the prototype of the obtained coatings with low moisture absorption 2,1-4,2% (prototype of 3.1-5.2%), and with high adhesion, continued after soaking in water at a temperature of 20-25°C for 48 hours - 1 point (the prototype of 3 points) and stable physical and mechanical properties, which are retained at at 200 degrees C for 72 hours, the strength of the film during the impact - 50 cm (prototype 40 cm), elasticity at bending - 1 mm (prototype of 5 mm). The coverage at a temperature of 100-160°C with high speeds: content gel faction after 30 minutes at 100 C is 85-87% (prototype 78-80%), and at 160 degrees C - 94-96% (prototype 87-90%).

Table 4

Properties of coatings.

No. a song by table 2

Stability of the composition, the day

The curing temperature, C

Contents of gel-fraction*, %

Adhesion, points

Impact strength,CM

Transverse elasticity of film, mm

Water absorption, %

Corrosion resistance, mm

Original

After heating at 50 C for 48 H.

Original

After **

Original

After **

Prototype

14 100 78-80 1 3 50 40 1 5 5,2 6,5 130 85-88 1 3 50 40 1 5 4,0 2,6 160 87-90 1 3 50 40 1 5 3,1 1,5 1 24 100 86-88 1 1 50 50 1 1 3,8 2,5 2 24 160 95-97 1 1 50 50 1 1 2?1 1,2 3 22 130 92-94 1 1 50 50 1 1 2,9 2,0 4 19 160 94-96 1 1 50 50 1 1 2,4 1,8 5 18 130 90-92 1 1 50 50 1 1 3,1 2,2 6 16 100 87-89 1 1 50 50 1 1 3,7 2,6 7 16 130 89-92 1 1 50 50 1 1 3,2 2,1 8 18 100 85-87 1 1 50 50 1 1 4,2 5,8 9 18 100 81-83 1 3 50 40 1 5 4,8 6,0 10 16 130 86-89 1 3 50 40 1 5 3,7 2,4

* - curing time of 30 minutes; ** - the temperature of 200 degrees C - 72 hours.