A rubber laminate comprised of a cross-linked rubber layer containing a carboxyl-group containing nitrile copolymer rubber (A), a carboxyl-group containing acryl-based polymer (B), and a specific phosphonium salt and a fluorine-based polymer layer. Preferably, the carboxyl-group content per 100 grams of the (A) ingredient is 2×10-3 to 1×10-1 equivalents and the carboxyl-group content per 100 grams of the (B) ingredient is 4×10-4 to 1×10-1 equivalents, the (A) ingredient and (B) ingredient are in a weight ratio of 40:60 to 90:10, and the phosphonium salt content in the cross-linked rubber layer is 0.5 to 10 parts by weight per 100 parts by weight of the total of the (A) ingredient and (B) ingredient. According to the present invention, there is provided a rubber laminate excellent in oil resistance and gasoline permeation resistance plus tensile strength, low compression set, and other mechanical characteristics, ozone resistance, and interlayer adhesion.
一种橡胶层压板,由含有含羧基的
丁腈共聚物橡胶(A)、含羧基的
丙烯基聚合物(B)、特定的
鏻盐和
氟基聚合物层的交联橡胶层组成。优选地,每 100 克(A)成分中的羧基含量为 2×10-3 至 1×10-1 当量,每 100 克(B)成分中的羧基含量为 4×10-4 至 1×10-1 当量,(A)成分和(B)成分的重量比为 40:60 至 90:10,交联橡胶层中的
鏻盐含量为 0.5 至 10 份(按重量计),每 100 份(按重量计)(A)成分和(B)成分的总和。根据本发明,提供了一种耐油性和耐汽油渗透性优异的橡胶层压板,同时还具有拉伸强度、低压缩永久变形和其他机械特性、耐
臭氧性和层间粘合性。