发明名称 |
Polyisobutylene/phenol polymers treated with diisocyanates and poly(oxyalkylene)polyols |
摘要 |
Disclosed herein are block copolymers prepared by polymerizing isobutylene in the presence of an alkyl-substituted phenol as chain transfer agent followed by reaction with a diisocyanate and coupling to a polyoxyalkylene polyol.
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申请公布号 |
US4321343(A) |
申请公布日期 |
1982.03.23 |
申请号 |
US19800198038 |
申请日期 |
1980.10.17 |
申请人 |
W. R. GRACE & CO. |
发明人 |
ROONEY, JOHN M. |
分类号 |
C08G18/10;C08G18/62;(IPC1-7):C08F283/00;C08G18/22;C08G18/24;C08G18/63 |
主分类号 |
C08G18/10 |
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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