Claims
- 1. A fluoropolymer composition for coating, which comprises:
- (A) a polymer having a fluorine-containing cycloaliphatic ether-cyclic structure of an at least 5-membered ring containing at least one group of the formula --MR.sup.1.sub.n-a R.sup.2.sub.a, wherein M is a member selected from the group consisting of Si, Ti, Zr, Hf, Th and Al; R.sup.1 is a member selected from the group consisting of halogen, hydroxyl, amino group, alkoxy, alkoxy-substituted alkoxy, hydroxyalkoxy, acyloxy, aminoxy, ketoxime and amide group; R.sup.2 is alkyl or aryl; n is 2 or 3; and a is 1 or 2, provided that a is 0 or 1 when n is 2, and
- (B) a solvent for dissolving said polymer.
- 2. The fluoropolymer composition for coating according to claim 1, wherein said polymer having a fluorine-containing cycloaliphatic structure has a cyclic structure on the main chain.
- 3. The fluoropolymer composition for coating according to claim 1, wherein said polymer having a fluorine-containing cycloaliphatic structure has a cyclic structure obtained by cyclic polymerization on the main chain.
- 4. The fluoropolymer composition for coating according to claim 1, wherein said polymer having a fluorine-containing cycloaliphatic structure is a polymer having a cyclic structure obtained by cyclic polymerization of at least one monomer selected from the group consisting of perfluoroallylvinyl ether and perfluorobutenylvinyl ether.
- 5. The fluoropolymer composition for coating according to claim 1, wherein M is Si; R.sup.1 is a C.sub.1-4 alkoxy group; n is 3; and a is 0.
- 6. The fluoropolymer composition for coating according to claim 1, wherein said solvent includes at least a solvent having a boiling point of from 50.degree. C. to 250.degree. C.
- 7. The fluoropolymer composition for coating according to claim 1, wherein said solvent is at least one member selected from the group consisting of a polyfluoroaromatic compound, a tri(polyfluoroalkyl)amine, a polyfluoroalkane, a polyfluoroalkene, a polyfluorocycloalkane and a polyfluorocyclic ether.
- 8. The fluoropolymer composition for coating according to claim 1, wherein the concentration of said polymer having a fluorine-containing cycloaliphatic structure is from 0.1 to 30% by weight.
- 9. The fluoropolymer composition for coating according to claim 8, wherein at least 1/20 of said polymer having a fluorine-containing cycloaliphatic structure is a polymer having a coupling group.
- 10. The fluoropolymer composition for coating according to claim 1, wherein an amount of an acidic material or acidic group contained in said composition is not more than 10 ppm.
- 11. The fluoropolymer composition for coating according to claim 10, wherein said acidic material or acidic group is a carboxyl or sulfonic group bonded with said polymer, an organic acid or an inorganic acid.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2-141578 |
Jun 1990 |
JPX |
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Parent Case Info
This application is a continuation of application Ser. No. 07/698,078, filed on May 10, 1991, now abandoned.
US Referenced Citations (6)
Foreign Referenced Citations (2)
Number |
Date |
Country |
1237782 |
Mar 1967 |
DEX |
9015082 |
Dec 1990 |
WOX |
Continuations (1)
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Number |
Date |
Country |
Parent |
698078 |
May 1991 |
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