Invention Grant
US08017695B2 Method for producing functionalized cis-1,4-polydienes having high cis-1,4-linkage content and high functionality
有权
具有高顺式-1,4-键含量和高官能度的官能化顺式-1,4-聚二烯的方法
- Patent Title: Method for producing functionalized cis-1,4-polydienes having high cis-1,4-linkage content and high functionality
- Patent Title (中): 具有高顺式-1,4-键含量和高官能度的官能化顺式-1,4-聚二烯的方法
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Application No.: US11964848Application Date: 2007-12-27
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Publication No.: US08017695B2Publication Date: 2011-09-13
- Inventor: Steven Luo , Junko Kurazumi , Yoichi Ozawa , Timothy L. Tartamella , Mark Smale , Kevin McCauley
- Applicant: Steven Luo , Junko Kurazumi , Yoichi Ozawa , Timothy L. Tartamella , Mark Smale , Kevin McCauley
- Agent Meredith E. Hooker; Arthur M. Reginelli
- Main IPC: C08F8/00
- IPC: C08F8/00 ; C08F4/52 ; B60C5/00

Abstract:
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.
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