申请人:Ciba-Geigy Corporation
公开号:US04413096A1
公开(公告)日:1983-11-01
.alpha.-Olefin copolymers having recurring structural units of the formula ##STR1## where preferably T is hydrogen, L.sub.1 is hydrogen, L.sub.2 is COOL.sub.3, L.sub.3 is lower alkyl, E is --COO--, G is a hindered amine moiety, a/a+b+c=0.50 to 0.99, b/a+b+c=0 to 0.49 and c/a+b+c=0.01 to 0.50, are useful as light stabilizers for polymeric substrates, particularly polyolefins.
具有重复结构单元的α-烯烃共聚物的化学式为##STR1## 其中T最好是氢,L.sub.1是氢,L.sub.2是COOL.sub.3,L.sub.3是较低的烷基,E是--COO--,G是阻碍胺基团,a/a+b+c=0.50至0.99,b/a+b+c=0至0.49,c/a+b+c=0.01至0.50。这些共聚物可用作聚合物基材的光稳定剂,特别是聚烯烃。