Invention Grant
- Patent Title: Fluororubber composition capable of forming crack-resistant seal and crack-resistant seal formed from the composition
- Patent Title (中): 能够形成由组合物形成的抗裂密封和抗裂纹密封的氟橡胶组合物
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Application No.: US12922903Application Date: 2009-03-12
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Publication No.: US08349965B2Publication Date: 2013-01-08
- Inventor: Masanori Okazaki , Naoki Ohsumi
- Applicant: Masanori Okazaki , Naoki Ohsumi
- Applicant Address: JP Tokyo
- Assignee: Nippon Valqua Industries, Ltd.
- Current Assignee: Nippon Valqua Industries, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: The Webb Law Firm
- Priority: JP2008-069611 20080318
- International Application: PCT/JP2009/054773 WO 20090312
- International Announcement: WO2009/116451 WO 20090924
- Main IPC: C08F14/18
- IPC: C08F14/18
Abstract:
A fluororubber composition according to the present invention contains 0.1 to 3 parts by weight of a polyol compound, 0.1 to 4 parts by weight of a peroxide crosslinking agent, and 1 to 9 parts by weight of a co-crosslinking agent per 100 parts by weight of a peroxide-crosslinkable fluoropolymer. A crack-resistant seal according to the present invention contains a crosslinked fluoropolymer and a polyol compound. The crack-resistant seal according to the present invention can be formed by crosslinking the fluororubber composition, and the resultant crack-resistant seal has particularly high crack resistance. With the fluororubber composition according to the present invention, a durable crack-resistant seal having high plasma resistance, crack resistance, and compression set and that produces few particles can be formed at low cost.
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