发明名称 |
PROCESS FOR CHAIN STOPPING OF PVC POLYMERIZATION. |
摘要 |
<p>The present invention relates to a process and composition for the chain stopping of vinyl chloride polymerization or copolymerization in the presence of a stable free nitroxyl radical and a phenolic antioxidant. A further subject of the invention is the use of a stable free nitroxyl radical together with a phenolic antioxidant as a chain stopping mixture for the vinyl chloride polymerization or copolymerization. A further aspect of the invention is the use of higher sterically hindered nitroxyl radicals alone as chain stopping agents for the vinyl chloride polymerization.</p> |
申请公布号 |
MXPA04010751(A) |
申请公布日期 |
2005.03.07 |
申请号 |
MX2004PA10751 |
申请日期 |
2003.04.24 |
申请人 |
CIBA SPECIALTY CHEMICALS HOLDING INC. |
发明人 |
DIETRICH BRAUN |
分类号 |
C08F2/42;C08F14/00;C08F14/06;(IPC1-7):C08F14/06 |
主分类号 |
C08F2/42 |
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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