An acrylic rubber that is a copolymer in which 1 to 4 wt.% of a reactive halogen group-containing vinyl monomer is copolymerized as a crosslinkable comonomer, wherein 45 to 65 wt.% of n-butyl acrylate, 10 to 35 wt.% of 2-methoxyethyl acrylate and 8 to 30 wt.% of ethoxyethoxyethyl acrylate are copolymerized in 100 wt.% of comonomers other than the crosslinkable comonomer. This ethoxyethoxyethyl acrylate-copolymerized acrylic rubber can suppress the reduction of oil resistance while improving cold resistance represented by a TR-10 value, and by compounding it with a vulcanizing agent corresponding to the crosslinkable group thereof, a crosslinkable composition is formed.
一种
丙烯酸橡胶,它是一种共聚物,其中 1 至 4 wt.%的含活性卤基
乙烯基单体作为可交联共聚单体进行共聚,其中 45 至 65 wt.%的
丙烯酸正丁酯、10 至 35 wt.%的
丙烯酸 2-甲氧基
乙酯和 8 至 30 wt.%的
丙烯酸乙氧基乙氧基乙酯与 100 wt.%的可交联共聚单体以外的共聚单体进行共聚。这种乙氧基乙氧基乙基
丙烯酸酯共聚
丙烯酸橡胶可抑制耐油性的降低,同时提高以 TR-10 值表示的耐寒性,并通过与对应于其可交联基团的
硫化剂共混,形成可交联组合物。