Crosslinkable fluorine rubber composition, fluorine rubber molded article, and method for producing same
US9102817B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2012 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | Aug 6, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2312/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A crosslinkable fluororubber composition containing: a fluororubber (A); and a fluororesin (B), wherein the fluororesin (B) is a copolymer (B1) consisting of tetrafluoroethylene units (a) and hexafluoropropylene units (b) or a copolymer (B2) containing tetrafluoroethylene units (a), hexafluoropropylene units (b), and polymerized units (c) derived from a monomer copolymerizable with tetrafluoroethylene and hexafluoropropylene, the copolymer (B1) satisfies the condition that the ratio (a)/(b) is (80.0 to 87.3)/(12.7 to 20.0) on a molar basis, and the copolymer (B2) satisfies the condition that the ratio (a)/(b) is (80.0 to 90.0)/(10.0 to 20.0) on a molar basis, and the ratio (c)/{(a)+(b)} is (0.1 to 10.0)/(90.0 to 99.9) on a molar basis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.