发明名称 |
Composições e processo para estabilização de cloreto de polivinila contra degradação térmica, e uso de um antioxidante fenólico estericamente impedido juntamente com um tioéter-ester |
摘要 |
The instant invention relates to a composition and process for the stabilization of halogen containing polymer slurries, in particular polyvinylchloride (PVC). The composition comprises a halogen containing polymer in the form of an aqueous suspension or emulsion, a partially hindered phenolic antioxidant and selected sulfur containing antioxidants, which are both solid at 20° C. A further aspect of the invention is the use of specific antioxidant mixtures for the stabilization of halogen containing polymer suspensions or emulsions, in particular PVC. |
申请公布号 |
BRPI0415687(B1) |
申请公布日期 |
2013.12.10 |
申请号 |
BR2004PI15687 |
申请日期 |
2004.10.25 |
申请人 |
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发明人 |
ALEX WEGMANN;PASCAL XANTHOPOULOS |
分类号 |
C08K5/00;C08F2/16;C08F14/00;C08K5/13;C08K5/372;C08L27/00;C08L57/08 |
主分类号 |
C08K5/00 |
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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