# US 5,705,560 A · Aqueous coating composition

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- Number: US 5,705,560 A
- Document ID: US5705560A
- Status: Granted
- Kind: A
- Application number: 08/602,674
- Filed: 1996-02-16
- Granted: 1998-01-06
- Earliest claimed: 1995-02-16
- Assignees: Rohm and Haas Company
- Inventors: Kunihide Takarabe; Yoshio Tamura; Takayuki Sugiyama; Tomohiro Shinoda; James Keith Bardman
- Web page: https://patentgrep.com/patent/US5705560A

## CPC

- C09D 133/062: {Copolymers with monomers not covered by C09D133/06}
- C09D 133/064: {containing anhydride, COOH or COOM groups, with M being metal or onium-cation}
- C08L 33/062: {Copolymers with monomers not covered by C08L33/06}
- C08L 33/064: {containing anhydride, COOH or COOM groups, with M being metal or onium-cation}
- 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)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)

## Abstract

This invention is a new aqueous paint composition, and its object is to provide a quick-drying paint composition that has a low sensitivity to temperature and has a high rubber elasticity. An aqueous paint composition, comprising (1) a latex which is a film-forming latex polymer having anionic property, where the solubility of the monomers to form the polymer, excluding the monomers that show anionic property, is 0.01-1.50 g per 100 g of water, (2) a water-soluble or water dispersible polymer formed from a monomer mixture containing at least 20 weight % of amine functional group-containing monomer, and (3) an amount of volatile base sufficient to raise the pH of the composition to a sufficiently high level to bring essentially all amine functional groups to a nonionic state.

## Claims

### Claim 1

Aqueous paint composition, comprising:
(1) a latex which is a film-forming latex polymer having anionic property, where the solubility of the polymer-forming monomers to form the polymer, excluding the monomers having anionic property, is 0.01-1.50 g per 100 g of water,
(2) water-soluble or water-dispersible polymer, formed from a monomer mixture that contains at least 20 weight % of amine functional group containing monomers, and
(3) from one to four equivalents of a volatile base selected from the group consisting of ammonia, morpholine, alkylamines, 2-dimethylaminoethanol, N-methyl morpholine, ethylenediamine and their mixtures, based on a titrated amount of latex acid and polyamine.

### Claim 2 (depends on 1)

The aqueous paint composition according to claim 1, where the solubility of the monomers to form the film-forming latex polymer having anionic property, excluding the monomers that show anionic property, is 0.1-0.9 g per 100 g of water.

### Claim 3 (depends on 1)

The aqueous paint composition according to claim 1, where the amount of water-soluble or water-dispersible polymer formed from the amine funcntional group-containing monomers is 0.02-20 weight % of the total combined amount of the latex polymer and the water-soluble or water-dispersible polymer.

### Claim 4 (depends on 1)

The aqueous paint composition according to claim 1, where the latex polymer is polymerized from a monomer mixture containing butyl methacrylate.

### Claim 5 (depends on 4)

The aqueous paint composition according to claim 4, where the amount of butyl methacrylate is 1-70 weight % of the monomer mixture.

### Claim 6 (depends on 1, 2, 3, 4, 5)

The aqueous paint composition according to either one of the claims 1 through 5, containing additional water-soluble or water-dispersible polyvalent metal.

### Claim 7 (depends on 6)

The aqueous paint composition according to claim 6, where the water-soluble or water-dispersible polyvalent metal is zinc.

### Claim 8

Aqueous paint composition, comprising
1) a latex which is a film-forming latex polymer having anionic property, where the solubility of the monomers to form the polymer, excluding the monomers having anionic property, is 0.01-1.50 g per 100 g of water, and
(2) water-soluble or water-dispersible polyvalent metal.

### Claim 9

Aqueous paint composition, comprising a latex which is a film-forming latex polymer having anionic property, modified by water-soluble or water-dispersible polyvalent metal, where the solubility of the monomers to form the polymer, excluding the monomers having anionic property, is 0.01-1.50 g per 100 g of water reacted with a water-soluble or water-dispersible polyvalent metal.

### Claim 10 (depends on 8, 9)

The aqueous paint composition according to claim 8 or claim 9, where the water-soluble or water-dispersible polyvalent metal is zinc.

### Claim 11

Aqueous paint composition, comprising:
(1) a latex which is a film-forming latex polymer having anionic property, modified by water-soluble or water-dispersible polyvalent metal, where the solubility of the monomers to form the polymer, excluding the monomers having anionic property, is 0.01-1.50 g per 100 g of water,
(2) water-soluble or water-dispersible polymer, formed from a monomer mixture containing at least 20 weight % of amine functional group-containing monomer, and
(3) from one to four equivalents of a volatile base selected from the group consisting of ammonia, morpholine, alkylamines, 2-dimethylaminoethanol, N-methyl morpholine, ethylenediamine and their mixtures, based on a titrated amount of latex acid and polyamine.

### Claim 12 (depends on 11)

The aqueous paint composition according to claim 11, where the water-soluble or water-dispersible polyvalent metal is zinc.
