Patent ID: 9718895
Date: 2017-08-01
CPC Classifications: B32B,C08C,C08J,C08K,C08L,F16L,Y10T

Claim:
1. A process for producing an acrylic rubber/fluorinated rubber composition, the process comprising (1) kneading a fluorinated rubber (A), a crosslinking agent for an acrylic rubber, which does not react with the fluorinated rubber (A), and a crosslinking coagent for an acrylic rubber, which does not react with the fluorinated rubber (A), to obtain a fluorinated rubber composition containing the fluorinated rubber (A), the crosslinking agent, and the crosslinking coagent at a temperature of 30 to 100° C., and (2) kneading the fluorinated rubber composition while adding an acrylic rubber (B) in a mass ratio of the fluorinated rubber (A) to the acrylic rubber (B) of 5/95 to 50/50 to crosslink the acrylic rubber (B) at a temperature of 120 to 250° C., and dispersing particles of the crosslinked acrylic rubber (B) in a continuous phase of the fluorinated rubber (A).