发明名称 |
Polyolefin compositions stabilized against UV-radiations by pyrrolidine derivatives |
摘要 |
Polyolefin polymers can successfully be stabilized against the detrimental effects of UV-radiations by compounding them with a stabilizer belonging to the class of compounds containing a pyrrolidine ring and which are sterically hindered in the 3-position and also substituted in such position by substituents having a high molecular weight. The esters of the 2,2,5,5-tetraalkyl-4-methyl-3-methylol pyrrolidine are exemplary compounds; the adipic and the stearic esters are preferred.
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申请公布号 |
US4346188(A) |
申请公布日期 |
1982.08.24 |
申请号 |
US19800213655 |
申请日期 |
1980.12.05 |
申请人 |
ANIC, S.P.A. |
发明人 |
COSTANZI, SILVESTRO;TESSAROLO, FRANCESCO;BALLABIO, ADRIANO;BRUNELLI, MAURIZIO |
分类号 |
C08L23/00;C07D207/08;C08K5/34;C08K5/3415;C08L101/00;(IPC1-7):C08K5/00 |
主分类号 |
C08L23/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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