发明授权
US08975324B2 Tread rubber compounds having improved abrasion resistance using functionalized liquid polybutadiene
有权
使用官能化液体聚丁二烯具有改善耐磨性的轮胎橡胶化合物
- 专利标题： Tread rubber compounds having improved abrasion resistance using functionalized liquid polybutadiene
- 专利标题（中）： 使用官能化液体聚丁二烯具有改善耐磨性的轮胎橡胶化合物
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申请号： US13879855申请日： 2011-10-18
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公开(公告)号： US08975324B2公开(公告)日： 2015-03-10
- 发明人: Amy M. Randall , Sheel P. Agarwal , William L. Hergenrother
- 申请人： Amy M. Randall , Sheel P. Agarwal , William L. Hergenrother
- 申请人地址： JP Tokyo
- 专利权人： Bridgestone Corporation
- 当前专利权人： Bridgestone Corporation
- 当前专利权人地址： JP Tokyo
- 代理商 Meredith E. Hooker; Jenny L. Sheaffer
- 国际申请： PCT/US2011/056677 WO 20111018
- 国际公布： WO2012/054458 WO 20120426
- 主分类号： C08K3/18
- IPC分类号： C08K3/18 ; C08J3/22 ; C08K3/22 ; B60C1/00 ; C08L9/06 ; C08L21/00 ; C08K3/00 ; C08L13/00 ; C08L91/00
摘要：
A tread rubber composition having improved abrasion resistance is provided. The tread rubber composition comprises a conjugated diene polymer or copolymer, at least one filler, from 2 to 10 phr of liquid polybutadiene, from 2 to 5 phr of zinc oxide and from 1 to 100 phr of process oil. The liquid polybutadiene is functionalized by reaction with unsaturated acid anhydride, has a number average molecular weight of from 3 to 8 kg/mol and an acid number of from 40 to 80. Also provided are methods for preparing the tread rubber composition comprising mixing of the foregoing ingredients by master-batch and final batch steps whereby the abrasion resistance of the tread rubber composition is improved.
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