- 专利标题: Precipitated silicas
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申请号: US09986468申请日: 2001-11-08
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公开(公告)号: US07071257B2公开(公告)日: 2006-07-04
- 发明人: Heinz Esch , Udo Görl , Robert Kuhlmann , Ralf Rausch
- 申请人: Heinz Esch , Udo Görl , Robert Kuhlmann , Ralf Rausch
- 申请人地址: DE Dusseldorf
- 专利权人: Degussa AG
- 当前专利权人: Degussa AG
- 当前专利权人地址: DE Dusseldorf
- 代理机构: Pillsbury Winthrop Shaw Pittman LLP
- 优先权: DE4334201 19931007; DE4427137 19940730
- 主分类号: C08K5/541
- IPC分类号: C08K5/541
摘要:
Rubber compositions comprising a precipitated silica with the following physico-chemical properties: BET surface area 35 to 350 m2/g BET/CTAB surface area ratio 0.8 to 1.1 Pore volume, PV 1.6 to 3.4 ml/g Silanol group density 6 to 20 ml/(5 g) Average aggregate size 250 to 1500 nm CTAB surface area 30 to 350 m2/g DBP value 150 to 300 ml/100 g V2/V1 by Hg porosimetry0.19 to 0.46 DBP/CTAB 1.2 to 3.5.
公开/授权文献
- US20020169248A1 Precipitated silicas 公开/授权日:2002-11-14
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