发明名称 |
Programmed addition of heavy ethers for microstructure control of diene polymers |
摘要 |
A process for the polymerization of dienes which comprises anionically polymerizing dienes in the presence of an anionic polymerization initiator and a microstructure control agent is improved by adding the control agent to the polymerization mixture in two or more doses to closely control the vinyl content of the polymer produced.
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申请公布号 |
US5795944(A) |
申请公布日期 |
1998.08.18 |
申请号 |
US19970820404 |
申请日期 |
1997.03.12 |
申请人 |
SHELL OIL COMPANY |
发明人 |
GRAAFLAND, TEUNIS;BEAN, JR., ARTHUR ROBINSON |
分类号 |
C08F2/38;C08F4/48;C08F36/04;C08F297/02;(IPC1-7):C08F236/10;C08F297/04 |
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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