# US 2019/0169353 A1 · Aqueous polyurethane - vinyl polymer hybrid dispersions

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- Number: US 2019/0169353 A1
- Document ID: US20190169353A1
- Status: Published application
- Kind: A1
- Application number: 16/269,763
- Filed: 2019-02-07
- Published: 2019-06-06
- Earliest claimed: 2014-07-31
- Assignees: Allnex Austria GmbH
- Applicants: Allnex Austria GmbH
- Inventors: Anton ARZT; Ulrike KUTTLER
- Web page: https://patentgrep.com/patent/US20190169353A1

## CPC

- C08F 283/006: {on to polymers provided for in C08G18/00 (C08F283/004 takes precedence)}
- B05D 3/007: {After-treatment}
- C08G 18/0823: {containing carboxylate salt groups or groups forming them}
- C08G 18/2835: {having less than 5 ether groups}
- C08G 18/3228: {acyclic}
- C08G 18/3275: {containing two hydroxy groups}
- C08G 18/4288: {modified by higher fatty oils or their acids or by resin acids}
- C08G 18/4291: {prepared from polyester forming components containing monoepoxy compounds (C08G18/4266 takes precedence)}
- C08G 18/6254: {Polymers of alpha-beta ethylenically unsaturated carboxylic acids and of esters of these acids containing hydroxy groups}
- C08G 18/6659: {with compounds of group C08G18/34}
- C08G 18/67: Unsaturated compounds having active hydrogen
- C08G 18/724: {Combination of aromatic polyisocyanates with (cyclo)aliphatic polyisocyanates}
- C08G 18/755: {and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate}
- C08G 18/765: {alpha, alpha, alpha', alpha', -tetraalkylxylylene diisocyanate or homologues substituted on the aromatic ring}
- C08G 18/792: {formed by oligomerisation of aliphatic and/or cycloaliphatic isocyanates or isothiocyanates}
- C08G 18/831: {by oxygen-containing compounds inclusive of carbonic acid halogenides, carboxylic acid halogenides and epoxy halides (by aldehydes C08G18/84, by peroxides C08G18/86)}
- C08L 75/06: from polyesters
- C09D 5/002: {Priming paints (C09D5/08 takes precedence)}
- C09D 151/08: grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C09D 175/06: from polyesters
- C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- B05D: PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (conveying articles or workpieces through baths of liquid B65G, e.g. B65G49/02)
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D)

## Abstract

The invention relates to aqueous polyurethane-vinyl polymer hybrid dispersions comprising, as building blocks hydrophobically modified hydroxy-functional polyesters A, acids B that have further groups which react with isocyanates under formation of urethanes, ureas, or thiourethanes, compounds G having only one hydroxyl group, and one or more tertiary amino groups, olefinically unsaturated monomers H2 having a polymerisable ethylenic unsaturation and a further functional group which reacts with an isocyanate group under bond formation, olefinically unsaturated monomers H1 having at least one polymerisable ethylenic unsaturation and no further functional group which reacts with an isocyanate group, and multifunctional isocyanates I having at least two isocyanate groups per molecule, to a process of their preparation, and to a method of use thereof.

## Claims

### Claim 1

Aqueous polyurethane-vinyl polymer hybrid dispersions comprising, as building blocks, hydrophobically modified hydroxy-functional polyesters A, acids B that have further groups which react with isocyanates under formation of urethanes, ureas, or thiourethanes, optionally, hydroxy-functional oligomeric or polymeric compounds C which may be polyesters, polycarbonates, polyethers, polyamides, polydienes and polyenes, and which have at least two hydroxyl groups per molecule, optionally, monomeric hydroxy compounds D having at least two hydroxyl groups per molecule, optionally, compounds E having at least one primary or secondary amino group, and at least one hydroxyl group per molecule, optionally, compounds F having two or more primary or secondary amino groups per molecule and no hydroxyl groups, compounds G having only one hydroxyl group, and one or more tertiary amino groups, olefinically unsaturated monomers H2 having a polymerisable ethylenic unsaturation and a further functional group which reacts with an isocyanate group under bond formation, olefinically unsaturated monomers H1 having at least one polymerisable ethylenic unsaturation and no further functional group which reacts with an isocyanate group, and multifunctional isocyanates I having at least two isocyanate groups per molecule, wherein the hydrophobically modified polyesters A are obtained from a polyester A′ having residual hydroxyl and acid groups, by reaction of the acid groups thereof with a mono-functional compound A4 having an epoxide or aziridine functionality, and a linear or branched alkyl residue of at least four carbon atoms, in which reaction at least 90% of the remaining acid groups of the polyester A′ are converted to ester or amide groups.

### Claim 2 (depends on 1)

The aqueous polyurethane-vinyl polymer hybrid dispersions of claim 1 wherein the hydrophobically modified polyesters A have side chains with chain length of from four to twenty carbon atoms.

### Claim 3 (depends on 1)

The aqueous polyurethane-vinyl polymer hybrid dispersions of claim 1 wherein the hydrophobically modified polyesters A have an acid number of 0.1 mg/g or less.

### Claim 4 (depends on 2)

The aqueous polyurethane-vinyl polymer hybrid dispersions of claim 2 wherein the side chains of the hydrophobically modified polyesters A are bound to the polyester by ester or amide groups.

### Claim at position 5

5-11. (canceled)

### Claim 12 (depends on 1)

A method of use of the aqueous polyurethane-vinyl polymer hybrid dispersions of claim 1, for the preparation of a coating composition, comprising the steps of providing the aqueous polyurethane-vinyl polymer hybrid dispersions of claim 1, and adding thereto an aminoplast crosslinker, and homogenising the resulting mixture.

### Claim 13 (depends on 1)

A method of use of the aqueous polyurethane-vinyl polymer hybrid dispersions of claim 1, for the preparation of a coating composition, comprising the steps of providing the aqueous polyurethane-vinyl polymer hybrid dispersions of claim 1 and adding thereto an aminoplast crosslinker, homogenising the resulting mixture, applying the coating composition to a substrate, and crosslinking the coating composition to form a coating, by heating the coated substrate to a temperature of from 50° C. to 180° C.