Invention Grant
- Patent Title: Process for producing modified polymer rubber
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Application No.: US12608550Application Date: 2009-10-29
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Publication No.: US08436097B2Publication Date: 2013-05-07
- Inventor: Katsunari Inagaki , Seiichi Mabe , Mayumi Oshima
- Applicant: Katsunari Inagaki , Seiichi Mabe , Mayumi Oshima
- Applicant Address: JP Tokyo
- Assignee: Sumitomo Chemical Company, Limited
- Current Assignee: Sumitomo Chemical Company, Limited
- Current Assignee Address: JP Tokyo
- Agency: Panitch Schwarze Belisario & Nadel LLP
- Priority: JP2004-166716 20040604; JP2004-268012 20040915
- Main IPC: C08F8/00
- IPC: C08F8/00 ; C08F8/42
Abstract:
A process for producing a modified polymer rubber comprising the steps of: (1) polymerizing a conjugated diene monomer or a combination thereof with an aromatic vinyl monomer in a hydrocarbon solvent, in the presence of an alkali metal catalyst or a specified alkali metal compound, to form an alkali metal end-carrying active polymer, and (2) reacting the alkali metal end-carrying active polymer with a specified isocyanurate compound or a combination thereof with a specified coupling agent in a hydrocarbon solvent.
Public/Granted literature
- US20100048806A1 PROCESS FOR PRODUCING MODIFIED POLYMER RUBBER Public/Granted day:2010-02-25
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