申请人:MITSUBISHI RAYON CO., LTD.
公开号:EP0332136A2
公开(公告)日:1989-09-13
A thermoplastic methacrylimide group-containing resin composition comprised of (a) a methacrylimide group-containing polymer comprising 5 to 100% by weight of units of an imide ring structure represented by the following structural formula (I):
wherein R₁ stands for a hydrogen atom, a substituted or unsubstituted alkyl, cycloalkyl, aryl, alkaryl, aralkyl or allyl group having 1 to 20 carbon atoms,
and 0 to 95% by weight of units derived from at least one monoethylenically unsaturated monomer, and (b) a small amount of a tetramethylpiperidine derivative is described. A shaped article made from this composition has a highly improved weatherability.
一种含甲基丙烯酰亚胺基团的热塑性树脂组合物,由以下物质组成 (a) 含甲基丙烯酰亚胺基团的聚合物,按重量计,该聚合物包含 5%至 100%的由以下结构式(I)表示的酰亚胺环结构单元:
其中 R₁ 代表氢原子、取代或未取代的烷基、环烷基、芳基、烷芳基、芳烷基或具有 1 至 20 个碳原子的烯丙基、
和 0 至 95% (按重量计)由至少一种单乙烯不饱和单体衍生的单元,以及 (b) 少量的四甲基哌啶衍生物。用这种组合物制成的成型品具有极佳的耐候性。