In the case where a polyamide is blended with a specific partially crosslinked graft-modified polyolefin elastomer obtained by dynamically heat-treating a blend of a peroxide-crosslinking olefin copolymer rubber and an olefinic plastic with an unsaturated carboxylic acid or derivative thereof, an unsaturated epoxy monomer or an unsaturated hydroxy monomer in the presence of an organic peroxide, if the graft-modified polyolefin plastomer occupies a major portion, a composition strength and the resistance against heat agin is obtained and if the polyamide occupies a major portion, a composition excellent in the impact resistance, the rigidity and the tensile strength is obtained.
在聚酰胺与特定的部分交联接枝改性聚烯烃弹性体混合物中,聚烯烃弹性体是通过将过氧化物交联烯烃共聚物橡胶和烯烃塑料的混合物与不饱和
羧酸或其衍
生物、不饱和环氧单体或不饱和羟基单体在有机过氧化物存在下进行动态热处理而获得的,如果接枝改性聚烯烃弹性体占主要部分,则可获得组合物强度和耐热性,如果聚酰胺占主要部分,则可获得抗冲击性、刚性和拉伸强度优异的组合物。