发明名称 |
Preparation of star polymers |
摘要 |
Divinyl benzene and/or diisopropenyl benzene in hydrocarbon solvent is added over a period of time at low temperature to a hydrocarbon solvent containing a C2-20 normal, secondary or tertiary alkyl or cycloalkyl lithium compound and a tertiary alkylamine having 2-4 carbon atoms prepared at low temperature to provide an initiator having an average of from 4 to 9 C-Li sites and a VPO Mn of from about 750 to 4,000. These initiators a re useful in polymerizing dienes and vinyl monomers to provide star polymers having an average of from about 4 to 9 arms or branches. These star polymers among other things are useful low profile or low shrink additives for FRPs, e.g., glass fiber reinforced plastics.
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申请公布号 |
US4426495(A) |
申请公布日期 |
1984.01.17 |
申请号 |
US19820421700 |
申请日期 |
1982.09.22 |
申请人 |
THE GENERAL TIRE & RUBBER COMPANY |
发明人 |
VITUS, FRANCIS J.;HARGIS, IVAN G.;LIVIGNI, RUSSELL A.;AGGARWAL, SUNDAR L. |
分类号 |
C08F236/10;C08F297/04;C08L21/00;C08L67/06;(IPC1-7):C08L67/06 |
主分类号 |
C08F236/10 |
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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