| abstract |
A vulcanizable epoxy group-containing elastomer composition is disclosed, comprising (A) an epoxy group-containing elastomer, (B) an organic compound containing at least two (* CHEMICAL STRUCTURE *) bonds, wherein X and Y, which may be the same or different, each represents an oxygen atom or a sulfur atom, per molecule or an organic compound containing at least two carboxyl groups per molecule, and (C) a phosphine compound represented by formula: (* CHEMICAL STRUCTURE *) wherein R1 and R2, which may be the same or different, each represents an alkyl group having from 1 to 4 carbon atoms; and R represents a hydrogen atom or an alkoxy group having from 1 to 4 carbon atoms. The composition has excellent compression set, particularly in a high temperature atmosphere, as well as excellent mechanical characteristics. |