发明公开
EP0326717A1 Bloc copolymer compositions and process for the preparation thereof 失效
Blockmischpolymerzusammensetzungen und Verfahren zu deren Herstellung。

Bloc copolymer compositions and process for the preparation thereof
摘要:
An aromatic vinyl compound-conjugated diene block copolymer composition having improved light stability comprises a mixture of a 2-(hydroxyphenyl)-substituted benzotriazole and an ester of a sterically hindered 4-hydroxypiperidine, 0.3-5 parts by weight per 100 pbw of block copolymer being present and the weight ratio benzotriazole to ester being 20:80 to 80:20.
信息查询
0/0