Invention Grant
US07691957B2 Butadiene-based polymer and method of producing the same as well as rubber composition and tire using the same
有权
丁二烯类聚合物及其制造方法以及橡胶组合物和使用其的轮胎
- Patent Title: Butadiene-based polymer and method of producing the same as well as rubber composition and tire using the same
- Patent Title (中): 丁二烯类聚合物及其制造方法以及橡胶组合物和使用其的轮胎
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Application No.: US10562157Application Date: 2004-06-23
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Publication No.: US07691957B2Publication Date: 2010-04-06
- Inventor: Eiju Suzuki , Yoichi Ozawa , Tetsuya Ohmura , Junko Kurazumi
- Applicant: Eiju Suzuki , Yoichi Ozawa , Tetsuya Ohmura , Junko Kurazumi
- Applicant Address: JP Tokyo
- Assignee: Bridgestone Corporation
- Current Assignee: Bridgestone Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2003-181042 20030625
- International Application: PCT/JP2004/008804 WO 20040623
- International Announcement: WO2005/000921 WO 20050106
- Main IPC: C08F136/06
- IPC: C08F136/06 ; C08F4/52 ; C08F2/02 ; B60C1/00
Abstract:
This invention is concerned with a butadiene-based polymer having a high cis-1,4 bond content, a low vinyl bond content and a molecular weight distribution of a specified range, and more particularly a butadiene-based polymer having a 1,3-butadiene monomer unit, characterized in that a cis-1,4 bond content and a vinyl bond content in the 1,3-butadiene monomer unit as measured by a Fourier transform infrared spectroscopy (FT-IR) is not less than 98.0% and not more than 0.3%, respectively, and a ratio (Mw/Mn) of weight average molecular weight (Mw) to number average molecular weight (Mn) is 1.6-3.5.
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