发明名称 |
IMPROVED PROCESS FOR PRODUCING POLYVINYL CHLORIDE |
摘要 |
PROBLEM TO BE SOLVED: To provide an aqueous suspension polymerization process for producing a polymer having an improved color, especially a polyvinyl chloride and a PVDF product, and a process utilizing a combination of an N-substituted hydroxylamine chain stopper and a fixed polymerization initiator. SOLUTION: The improved process method is characterized in that vinyl chloride alone or a mixture of vinyl chloride and <50% another vinyl monomer is subjected to an aqueous suspension polymerization, its polymerization initiator comprises at least one kind of a compound selected from a dialkyl peroxydicarbonate, a peroxy-t-alkanoate and a diacyl peroxide, and further a mono- or disalkyl-substituted N-hydroxylamine is used as the polymerization initiator or the chain stopper. |
申请公布号 |
JP2002080508(A) |
申请公布日期 |
2002.03.19 |
申请号 |
JP20010225660 |
申请日期 |
2001.07.26 |
申请人 |
ATOFINA CHEMICALS INC;ATOFINA |
发明人 |
BONARDI CHRISTIAN;HEBRARD PIERRE;PERES RICHARD;MALONE KENNETH;MENDOLIA MICHAEL;LOU JIANFENG;NOSOWITZ MARTIN;STAINBROOK BARBARA;CALLAIS PETER |
分类号 |
C08F2/38;C08F2/18;C08F14/00;C08F14/06;(IPC1-7):C08F2/38 |
主分类号 |
C08F2/38 |
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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