Flexible blend compositions are provided having a Shore A hardness of less than or equal to about 90. The compositions are blends of an overpolymer and/or graft polymer with a plasticizer or blending agent. The overpolymer has an ethylene copolymer substrate overpolymerized with a vinyl chloride type monomer or comonomer and optionally including an acrylate comonomer. The compositions are distinguished by an absence of shrinkage in hot oil. The compositions generally tend to swell in hot oil.
柔性共混组合物的邵氏 A 硬度小于或等于约 90。该组合物是一种包覆聚合物和/或接枝聚合物与
增塑剂或混合剂的混合物。过共聚物具有与
氯乙烯类单体或共聚单体过共聚的
乙烯共聚物基材,并可选择包括
丙烯酸酯共聚单体。这种组合物的特点是在热油中不收缩。在热油中,这些组合物通常会膨胀。