Sughrue, Mion, Zinn, Macpeak & Seas
Vulcanizable epoxy group-containing elastomer composition
 A vulcanizable epoxy group-containing elastomer composition is disclosed, comprising (A) an epoxy group-containing elastomer, (B) an organic compound containing at least two ##STR1## 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: ##STR2## wherein R.sub.1 and R.sub.2, 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. 
Sumitomo Chemical Company, Limited
C C C C
C08K C08G C08K C08K
inventional inventional inventional inventional
Hideaki Keisaku Masahiro
Yamada Yamamoto Fukuyama