Patent ID: 11866579
Assignee: SHIN-ETSU CHEMICAL CO., LTD.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  G | IPC C  G

Claim 3:
4. The curable fluoropolyether-based rubber composition of claim 1 wherein component (A) is a linear polyfluoro compound having the formula (2):, wherein R1 and R2 each are an alkenyl group or an unsubstituted or substituted monovalent hydrocarbon group free of aliphatic unsaturation, R1 is independent each other, R2 is independent each other, at least two of the total six R1 and R2 are alkenyl groups, R3 is each independently hydrogen or an unsubstituted or substituted monovalent hydrocarbon group, c and d each are an integer of 1 to 150, an average value of c+d is 2 to 300, and e is an integer of 1 to 6, and/or a linear polyfluoro compound having the formula (3):, wherein R1 and R2 each are an alkenyl group or an unsubstituted or substituted monovalent hydrocarbon group free of aliphatic unsaturation, R1 is independent each other, R2 is independent each other, at least two of the total six R1 and R2 are alkenyl groups, R4 is each independently a C1-C6 alkylene group, R5 is each independently hydrogen or a C1-C4 alkyl group which may be substituted with fluorine, c and d each are an integer of 1 to 150, an average value of c+d is 2 to 300, and e is an integer of 1 to 6.