Crosslinkable composition and molded article made of same
AssigneeDaikin Industries, Ltd.
InventorsKeiko Washino, Meiten Koh, Yasuko Takagahara
Life of this patent
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Abstract
The present invention provides a crosslinkable composition being capable of providing a molded article and a sealing material for an oxygen sensor which have excellent long-term heat resistance and satisfactory compression set. Also there is provided a molded article and a sealing material for an oxygen sensor which have excellent long-term heat resistance and satisfactory compression set. The crosslinkable composition comprises (A) a compound having at least one specific crosslinkable reaction group and (B) a nonperfluoro fluorine-containing elastomer being crosslinkable with the compound (A).
Claims7
A crosslinkable composition comprising:
- a compound represented by the general formula (4):
- wherein X1s are the same or different and each is hydrogen atom or a monovalent organic group;
- R1 is OR3— or —SR3, and R3 is a hydrogen atom or a monovalent organic group;
- a compound represented by the general formula (5):
- wherein R4s are the same or different and each is hydrogen, atom or cyano group;
- a compound represented by the general formula (6):
- wherein X2s are the same or different and each is hydrogen atom or monovalent organic group;
- Z− is an anion derived from an acid;
- Y1 is —H, —OH, —SH or —N+X22H.Z− (X2 and Z− are as defined above), and
- (B) a nonperfluoro fluorine-containing elastomer being capable of crosslinking reaction with the compound (A),
- wherein the nonperfluoro fluorine-containing elastomer (B) is selected from the group consisting of
- (1) vinylidene fluoride/hexafluoropropylene copolymer,
- (2) vinylidene fluoride/tetrafluoroethylene/hexafluoropropylene copolymer,
- (3) tetrafluoroethylene/propylene copolymer,
- (4) hexafluoropropylene/ethylene copolymer,
- (5) tetrafluoroethylene/vinylidene fluoride/fluoro(alkyl vinyl ether) copolymer, and
- (6) chlorotrifluoroethylene/vinylidene fluoride/fluoro(alkyl vinyl ether) copolymer.
Dependencies are inferred from the claim text.