发明授权
- 专利标题： Stabilized styrene polymer
- 专利标题（中）： 稳定的苯乙烯聚合物
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申请号： US128874申请日： 1987-12-04
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公开(公告)号： US4812494A公开(公告)日： 1989-03-14
- 发明人: Hideo Nagasaki , Shinichi Yachigo , Tamaki Ishii , Masakatsu Yoshimura , Yukoh Takahashi , Hiroki Yamamoto
- 申请人： Hideo Nagasaki , Shinichi Yachigo , Tamaki Ishii , Masakatsu Yoshimura , Yukoh Takahashi , Hiroki Yamamoto
- 申请人地址： JPX Osaka
- 专利权人： Sumitomo Chemical Company, Limited
- 当前专利权人： Sumitomo Chemical Company, Limited
- 当前专利权人地址： JPX Osaka
- 优先权： JPX61-304826 19861219
- 主分类号： C08K5/34
- IPC分类号： C08K5/34 ; C08K5/17 ; C08K5/3435 ; C08K5/3475 ; C08K5/3477 ; C08L25/00 ; C08L25/04 ; C08L55/00 ; C08L55/02
摘要：
A styrene polymer is stabilized by incorporating into said styrene polymer(A) a hindered piperidine compound represented by the formula ##STR1## wherein R.sub.1 is a hydrogen atom or an alkyl group having 1 to 3 carbon atoms,R.sub.2 is a hydrogen atom or an alkyl group having 1 to 12 carbon atoms, andR.sub.3 and R.sub.4 are each independently an alkyl group having 1 to 4 carbon atoms; and(B) a benzotriazole compound selected from the group consisting of 2-(2-hydroxy-5-methylphenyl)benzotriazole and 2-(2-hydroxy-3-tert-butyl-5-methylphenyl)-5-chlorobenzotriazole.
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