| abstract |
A COVULCANIZABLE COMPOSITION WHICH COMPRISES A MIXTURE OF 5-95% BY WEIGHT OF BUTADIENE-ACRYLONITRILE COPOLYMER RUBBER AND 95-5% BY WEIGHT OF EPICHLOROHYDRIN POLYMER RUBBER, AND A VULCANIZATION AGENT CONSISTING OF, PER 100 PARTS BY WEIGHT OF THE FIRST MIXTURE, (I) 0.5-5.0 PARTS BY WEIGHT OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF AROMATIC POLYAMINES, THEIR SALTS, ALIPHATIC POLYAMINES, THEIR SALTS, CYCLOALIPHATIC POLYAMINES, 2-MERCAPTOIMIDAZOLINE, 2-MERCAPTOPYRIMIDIN, THIOUREA AND SUBSTITUTED THIOUREA, (II) 1.0-10.0 PARTS BY WEIGHT OF AN OXIDE, AROMATIC CARBOXYLATE, ALIPHATIC CARBOXYLATE OR PHOSPHATE OF A METAL SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM, CALCIUM, ZINC, CADMIUM, LEAD AND TIN, AND (III) 0.3-3.0 PARTS BY WEIGHT OF AN ORGANIC PEROXIDE. |