| abstract |
A carboxyl group-containing acrylic rubber composition comprising (A) carboxyl group-containing acrylic rubber, (B) 1,4-diazabicyclo[2.2.2]octane, (D) a crosslinking agent for carboxyl group-containing acrylic rubber, and (E) a guanidine-based, thiuram-based, or thiourea-based crosslinking accelerator. The carboxyl group-containing acrylic rubber composition can form an acrylic rubber layer having excellent bonding strength to a fluororubber layer by crosslinking bonding a fluororubber composition. The carboxyl group-containing acrylic rubber composition may further comprise (C) a primary amine represented by the general formula RNH, wherein R is an aliphatic hydrocarbon group having 1 to 30 carbon atoms, thereby increasing interlaminar bonding force. |