发明名称 |
PROCESS FOR MAKING A COUPLED BLOCK COPOLYMER COMPOSITION AND THE RESULTING COMPOSITION |
摘要 |
This invention relates to a process far making a hydrogenated block copolymer, comprising the steps of: a) reacting a living lithium-terminated polymer having the formula P-Li, where P is a copolymer chain having at least one polymer block A composed of one or more mono alkenyl arenes having 8 to 18 carbon atoms and at least one polymer block B composed of one or more conjugated dienes having 4 to 12 carbon atoms, with an alkoxy silane coupling agent having the formula Si-(OR)4, where R is selected from, linear and branched alkyl radicals, and where the molar ratio of Si to Li is between 0.4 and 0.55, thereby forming a coupled block copolymer composition; b) optionally hydrogenating the coupled block copolymer composition; and c) recovering the resulting block copolymer composition. It also relates to the resulting composition containing low levels of uncoupled polymer and having a substantial linear character. |
申请公布号 |
WO03102032(A3) |
申请公布日期 |
2004.09.30 |
申请号 |
WO2003EP05875 |
申请日期 |
2003.06.03 |
申请人 |
KRATON POLYMERS RESEARCH B.V. |
发明人 |
ATWOOD, HARVEY, EMERSON;BENING, ROBERT, C.;HANDLIN, DALE, L., JR.;JOHNSON, KIMBERLY, ANN;WILLIS, CARL, LESLEY |
分类号 |
C08F2/00;C08F8/04;C08F8/42;C08F297/04;C08L23/04;C08L23/08;C08L23/10;C08L53/02 |
主分类号 |
C08F2/00 |
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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