发明名称 |
PROCESS FOR PRODUCING HIGH MOLECULAR WEIGHT MONOVINYLIDENE AROMATIC POLYMERS |
摘要 |
A process for producing a monovinylidene aromatic polymer having molecular weight (Mw) greater than 275,000 which comprises polymerizing a monomer mixture comprising a monovinylidene aromatic monomer in the presence of: A) from 10 to 2000 ppm by weight of at least one free radical generating, branching polymerization initiator; and B) from 10 to 2000 ppm of one or more organic gel reduction agent selected from the group consisting of: 1) mercaptans, terpenes, halocarbons and halohydrocarbons, such agent having up to 20 carbons; 2) distillate recovered from the reaction devolatilization process (recycle); and 3) mixtures of 1) and 2).
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申请公布号 |
WO9515344(A1) |
申请公布日期 |
1995.06.08 |
申请号 |
WO1994US12691 |
申请日期 |
1994.11.04 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
CUMMINGS, CLARK, J.;HATHAWAY, PAUL, E. |
分类号 |
C08F2/38;C08F12/00;C08F12/04;C08F12/08;(IPC1-7):C08F12/04 |
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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