Ethylene acrylic rubber composition, ethylene acrylic rubber, rubber metal composite and bonded piston seal

摘要

The present invention relates to an ethylene acrylic rubber composition that is excellent in compression set and excellent in cross-linking adhesion without being subjected to secondary crosslinking, an ethylene acrylic rubber obtained by primary crosslinking of the composition, the ethylene acrylic rubber and a metal And a bonded piston seal made of the rubber-metal composite, and 100 parts by weight of a binary ethylene acrylic rubber polymer made of ethylene and an acrylate ester. An ethylene acrylic rubber composition containing 1 to 7 parts by weight of calcium hydroxide, an ethylene acrylic rubber formed by subjecting the ethylene acrylic rubber composition to peroxide crosslinking by primary crosslinking, the ethylene acrylic rubber, and a metal, Rubber metal composite that is cross-linked and bonded along with the primary cross-linking, and bonded pith made of the rubber metal composite It is resolved by Nshiru.