# US 5,349,031 A · Fluorine-containing coating composition

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

- Number: US 5,349,031 A
- Document ID: US5349031A
- Status: Granted
- Kind: A
- Application number: 08/050,648
- Filed: 1993-04-22
- Granted: 1994-09-20
- Earliest claimed: 1992-04-24
- Assignees: Asahi Glass Company, Limited
- Inventors: Shun-ichi Kodama; Yasuyuki Sasao; Ryuichi Miura
- Web page: https://patentgrep.com/patent/US5349031A

## CPC

- C09D 127/12: containing fluorine atoms
- 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

A fluorine-containing coating composition comprising from 30 to 90 wt % of a fluorine-containing copolymer containing units derived from a fluoroolefin and units derived from a vinyl ether and having a hydroxyl value of from 30 to 150 (mgKOH/g) and an epoxy equivalent of from 300 to 2,000 (g/eq) and from 10 to 70 wt % of a curing agent having carboxylic acid groups or a derivative thereof.

## Claims

### Claim 1

A fluorine-containing coating composition comprising:
i) 30 to 90 wt. % of a fluorine-containing copolymer obtained by copolymerizing monomers comprising
a) a fluoroolefin;
b) a vinyl ether;
c) an ethylenically unsaturated monomer having a hydroxy group; and
d) an ethylenically unsaturated monomer having an epoxy group;
wherein said copolymer has a hydroxyl value of from 30 to 150 (mgKOH/g) and an epoxy equivalent of from 300 to 2,000 (g/eq); and
(ii) 10 to 70 wt. % of a curing agent selected from the group consisting of a polybasic carboxylic acid, a polybasic carboxylic anhydride, a blocked polybasic carboxylic acid and a mixture thereof.

### Claim 2 (depends on 1)

The fluorine-containing coating composition according to claim 1, wherein the fluoroolefin is a compound of the formula (1):
CF.sub.2 =CFX (1)
wherein X is chlorine, fluorine, a C.sub.1-3 perfluoroalkyl group of a C.sub.1-3 perfluoroalkoxy group.

### Claim 3 (depends on 1)

The fluorine-containing coating composition according to claim 1, wherein the vinyl ether is an alkylvinyl ether or a cycloalkylvinyl ether.

### Claim 4 (depends on 1)

The fluorine-containing coating composition according to claim 1, wherein the ethylenically unsaturated monomer having a hydroxyl group is a hydroxyalkylvinyl ether or a hydroxyalkylisopropenyl ether.

### Claim 5 (depends on 1)

The fluorine-containing coating composition according to claim 1, wherein the ethylenically unsaturated monomer having an epoxy group is a vinyl ether having an epoxy group.