发明名称 |
A method for producing functionalized cis-1,4polydienes having high cis-1,4-linkage content and high functionality |
摘要 |
This invention relates to a method for producing functionalized cis-1,4-polydienes having a combination of a high cis-1,4-linkage content and a high functionality, the resulting polymers and the vulcanized products containing the polymers. The functionalized cis-1,4-polydienes of the present invention are produced by a method comprising the steps of: (1) preparing a reactive polymer by polymerizing conjugated diene monomer with a lanthanide-based catalyst in the presence of less than 20% by weight of organic solvent based on the total weight of monomer, organic solvent, and resulting polymer, where the lanthanide-based catalyst is the combination of or reaction product of (a) a lanthanide compound, (b) an aluminoxane, (c) an organoaluminum compound other than an aluminoxane, and (d) a halogen-containing compound; and (2) contacting the reactive polymer with a functionalizing agent. |
申请公布号 |
EP1939221(A2) |
申请公布日期 |
2008.07.02 |
申请号 |
EP20070255064 |
申请日期 |
2007.12.27 |
申请人 |
BRIDGESTONE CORPORATION |
发明人 |
LUO, STEVEN;KURAZUMI, JUNKO;OZAWA, YOICHI;TARTAMELLA, TIMOTHY L.;SMALE, MARK |
分类号 |
C08C19/44;B60C1/00;C08F4/54;C08F36/04;C08L15/00 |
主分类号 |
C08C19/44 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|