申请人:POLYPLASTICS CO. LTD.
公开号:EP0823456A1
公开(公告)日:1998-02-11
A polyacetal resin composition having excellent friction resistance and abrasion resistance performances is provided by improving the compatibility, dispersibility and interfacial adhesiveness between the polyacetal resin and an olefinic polymer.
To a polyacetal resin (A), 1 to 100 parts by weight based on 100 parts by weight of the resin (A) of a modified olefinic polymer (B) modified with at least one member selected from the group consisting of an unsaturated carboxylic acid and an acid anhydride thereof, and their derivatives, and 0.1 to 100% by weight based on component (B) of an alkylene glycol polyme (C)r having a primary or secondary amino group(s) and having a number-average molecular weight of 400 to 500,000 are blended.
通过改善聚缩醛树脂和烯烃聚合物之间的相容性、分散性和界面粘合性,提供了一种具有优异耐摩擦性和耐磨性的聚缩醛树脂组合物。
在聚缩醛树脂(A)中,以 100 份树脂(A)的重量为基准,掺入 1 至 100 份用至少一种 选自不饱和羧酸及其酸酐和它们的衍生物组成的组的成员进行改性的改性烯烃聚合物 (B),以及以组分(B)的重量为基准,掺入 0.1 至 100%的具有伯氨基或仲氨基且数 均分子量为 400,000 至 500,000 的烷二醇聚合物(C)。