| abstract |
A rubber laminate is disclosed, comprising an inner rubber layer comprising a vulcanizate of a blend of an acrylic rubber and a vinylidene fluoride resin, an outer rubber layer comprising a vulcanizate of an epichlorohydrin rubber with an intermediate rubber layer therebetween, wherein the intermediate rubber layer comprises a vulcanized acrylic rubber which is obtained by using a vulcanizing system comprising (1) isocyanuric acid as a vulcanizing agent, (2) a quaternary ammonium salt as a vulcanization accelerator, and (3) diphenylurea as a vulcanization retarder. The intermediate rubber layer affords satisfactory adhesion between the outer and inner rubber layers only by vulcanizing bonding. |