Claims
- 1. A peroxide-vulcanizable, fluorine-containing elastomer composition, which comprises a fluorine-containing elastomer containing at least one of iodine and bromine in the molecule, an organic peroxide, a polyfunctional compound and ultra fine white silicic anhydride or hydrated silicic acid particles having a pH of 9 to 12 as an aqueous 4-5% by weight solution.
- 2. A peroxide-vulcanizable, fluorine-containing elastomer composition according to claim 1, wherein the fluorine-containing elastomer containing at least one of iodine and bromine in the molecule is a fluorine-containing olefin copolymer obtained by polymerization reaction of fluorine-containing olefins in the presence of a saturated or unsaturated, linear or aromatic compound represented by the general formula RBr.sub.n I.sub.m, wherein R is a fluorohydrocarbon group, a chlorofluorohydrocarbon group, a chlorohydrocarbon group or a hydrocarbon group and n and m are 1 or 2.
- 3. A peroxide-vulcanizable, fluorine-containing elastomer composition according to claim 1, wherein the fluorine-containing elastomer containing iodine in the molecule is a fluorine-containing olefin copolymer obtained by polymerization reaction of fluorine-containing olefins in the presence of an iodine-substituted aromatic compound, perfluoroaromatic compound, or saturated or unsaturated aliphatic hydrocarbon, fluoroaliphatic hydrocarbon or chlorofluoroaliphatic hydrocarbon.
- 4. A peroxide-vulcanizable, fluorine-containing elastomer composition according to claim 1, wherein the fluorine-containing elastomer containing bromine in the molecule is a fluorine-containing olefin copolymer obtained by polymerization reaction of olefin-containing olefins in the presence of a bromine-substituted aromatic compound, perfluoroaromatic compound, or saturated or unsaturated aliphatic hydrocarbon.
- 5. A peroxide-vulcanizable, fluorine-containing elastomer composition according to claim 2 wherein the fluorine-containing elastomer containing at least one of iodine and bromine is contained at least one of iodine and bromine in a combining ratio of 0.001 to 10% by weight.
- 6. A peroxide-vulcanizable, fluorine-containing elastomer composition according to claim 3 wherein the fluorine-containing elastomer containing at least one of iodine and bromine is contained at least one of iodine and bromine in a combining ratio of 0.001 to 10% by weight.
- 7. A peroxide-vulcanizable, fluorine-containing elastomer composition according to claim 4 wherein the fluorine-containing elastomer containing at least one of iodine and bromine is contained at least one of iodine and bromine in a combining ratio of 0.001 to 10% by weight.
- 8. A peroxide-vulcanizable, fluorine-containing elastomer composition according to claim 1 wherein 0.1 to 10 parts by weight of the organic peroxide is contained per 100 parts by weight of the fluorine-containing elastomer containing at least one of iodine and bromine.
- 9. A peroxide-vulcanizable, fluorine-containing elastomer composition according to claim 1 wherein 0.1 to 20 parts by weight of the polyfunctional compound is contained per 100 parts by weight of the fluorine-containing elastomer containing at least one of iodine and bromine.
- 10. A peroxide-vulcanizable, fluorine-containing elastomer composition according to claim 1 wherein 0.5 to 100 parts by weight of the ultra fine white silicic anhydride or hydrated silica acid particles is contained per 100 parts by weight of the fluorine-containing elastomer containing at least one of iodine and bromine.
- 11. The composition according to claim 1 wherein the pH of said particles is 10.4-10.5.
- 12. The composition according to claim 2 wherein the pH of said particles is 10.4-10.5.
- 13. The composition according to claim 3 wherein the pH of said particles is 10.4-10.5.
- 14. The composition according to claim 4 wherein the pH of said particles is 10.4-10.5.
- 15. The composition according to claim 5 wherein the pH of said particles is 10.4-10.5.
- 16. The composition according to claim 6 wherein the pH of said particles is 10.4-10.5.
- 17. The composition according to claim 7 wherein the pH of said particles is 10.4-10.5.
- 18. The composition according to claim 8 wherein the pH of said particles is 10.4-10.5.
- 19. The composition according to claim 9 wherein the pH of said particles is 10.4-10.5.
- 20. The composition according to claim 10 wherein the pH of said particles is 10.4-10.5.
Priority Claims (1)
Number |
Date |
Country |
Kind |
1-40166 |
Feb 1989 |
JPX |
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Parent Case Info
This is a continuation of application Ser. No. 07/466,490, filed Jan. 17, 1990, now abandoned, and the benefits of 35 USC 120 are claimed relative to it.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
4748223 |
Haruyoshi |
May 1988 |
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Continuations (1)
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Number |
Date |
Country |
Parent |
466490 |
Jan 1990 |
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