Patent ID: 8574717

Claim:
A rubber laminate obtained by vulcanization-bonding of an unvulcanized fluororubber composition and an unvulcanized NBR composition, the unvulcanized fluororubber composition comprising: (A) 100 parts by weight of a fluororubber comprising a terpolymer containing 50 to 60 mol % of a constitutional unit derived from vinylidene fluoride, 20 to 30 mol % of a constitutional unit derived from tetrafluoroethylene, and 10 to 30 mol % of a constitutional unit derived from hexafluoropropene, total: 100 mol %; (B) 1 to 40 parts by weight of an oxide and/or hydroxide of a divalent metal; (C) 0.5-10 parts by weight of a polyhydroxy aromatic compound; (D) 0.1 to 5 parts by weight of a 2-substituted-4,6-dithiol-s-triazine derivative; (E 1 ) 0.1 to 5 parts by weight of a quaternary phosphonium salt or a tetraalkyl ammonium salt vulcanization accelerator; (E 2 ) 0.01 to 2 parts by weight of 1,8-diazabicyclo[5.4.0]undecene-7 or a salt thereof; and (E 3 ) 0.01 to 2 parts by weight of a 5-substituted-1,5-diazabicyclo[4.3.0]-5-nonene or a salt thereof.