# US 5,710,201 A · Paint composition

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 5,710,201 A
- Document ID: US5710201A
- Status: Granted
- Kind: A
- Application number: 08/379,553
- Filed: 1995-03-08
- Granted: 1998-01-20
- Earliest claimed: 1992-08-07
- Assignees: BASF SE
- Inventors: Takeshi Hayakawa; Kishio Shibato
- Web page: https://patentgrep.com/patent/US5710201A

## CPC

- C09D 143/04: Homopolymers or copolymers of monomers containing silicon
- C08G 18/4063: {Mixtures of compounds of group C08G18/62 with other macromolecular compounds}
- C08G 18/61: Polysiloxanes
- 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)
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS

## Abstract

Paint compositions containing (A) a vinyl type copolymer obtained by polymerizing (i) specific silicone type vinyl monomers 1-50% by weight, (ii) vinyl monomers containing hydroxyl groups 5-60% by weight, and (iii) other vinyl monomers 5-80% by weight, (B) specific hydroxyl-group-containing silicone type compounds, and (C) a hardening agent that allows reaction with hydroxyl groups. Paint films can be formed which have excellent water-repellence and oil-repellence, and in which there is no lowering of water-repellence or oil-repellence when they are exposed for long periods in natural environments.

## Claims

### Claim 1

Paint composition comprising (A) a vinyl type copolymer obtained by polymerizing
(i) 1-50% by weight of a silicone type vinyl monomer represented by the general formula ##STR5## in the formula X is a hydrogen atom or a methyl group, R.sup.1 is a methyl group or a phenyl group, k is a number 1-5, and m is a number 3-150
(ii) 5-60% by weight of a vinyl monomer containing a hydroxyl group, and (iii) 5-80% by weight of another vinyl monomer,
(B) a silicone compound represented by the general formula ##STR6## in the equation either one of Y.sup.1 and Y.sup.2 is a hydroxyl group and the remaining one is a hydroxyl group or a methyl group; R.sup.2 is a methyl group or a phenyl group, and n is a number 3-150, and
(C) a hardening agent which allows reaction with hydroxyl groups.

### Claim 2 (depends on 1)

Paint composition according to claim 1, in which the hardener of component (C) is selected from the group consisting of an amino resin, a polyisocyanate compound and a polyalkoxysilane compound.

### Claim 3 (depends on 1, 2)

Paint composition according to claim 1 or claim 2 in which component (A) is 40-90% by weight, component (B) is 0.5-20% by weight, and component (C) is 10-60% by weight, based on the total weight of component (A), component (B) and component (C).