发明名称 |
STABILISED POLYMERS AND THEIR PREPARATION |
摘要 |
STABILIZED POLYMERS AND THEIR PREPARATION Oxidatively stabilized polyolefin polymers containing an antioxidant are made more resistant to loss of antioxidant by converting at least some of the antioxidant comprising a polymer of dicyclopentadiene and a phenolic compound into a form non extractable with cyclohexane. The conversion is preferably by reaction in the melt phase in the presence of a radical initiator. Addition of organotin esters, sulphides, oxides or thioethers reduces the colour.
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申请公布号 |
CA2034515(A1) |
申请公布日期 |
1991.07.21 |
申请号 |
CA19912034515 |
申请日期 |
1991.01.18 |
申请人 |
BP CHEMICALS LIMITED |
发明人 |
DAVIDSON, NEIL S.;LEIPER, HILDA A.;DI MURRO, COLETTE A. A.;WILKINSON, KENNETH |
分类号 |
C08K5/56;C08L23/00;C08L23/02;C08L65/00;C08L87/00;(IPC1-7):C08L57/00;C08L47/00 |
主分类号 |
C08K5/56 |
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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