| 发明名称 | Specially precipitated silicic acids for rubber applications | ||
| 摘要 | The present invention relates to precipitated silicas which have extremely low microporosity and high rubber activity, to a process for their preparation, and to their use as filler for rubber mixtures. | ||
| 申请公布号 | US8986442(B2) | 申请公布日期 | 2015.03.24 |
| 申请号 | US200410542850 | 申请日期 | 2004.01.08 |
| 申请人 | Evonik Degussa GmbH | 发明人 | Luginsland Hans-Detlef;Wehmeier Andre;Stenzel Oleg;Uhrlandt Stefan |
| 分类号 | C09C3/12;B60C1/00;C01B33/193;C09C1/30 | 主分类号 | C09C3/12 |
| 代理机构 | Oblon, McClelland, Maier & Neustadt, L.L.P. | 代理人 | Oblon, McClelland, Maier & Neustadt, L.L.P. |
| 主权项 | 1. A precipitated silica which has the following physical and chemical properties:CTAB surface area100-200m2/g,BET surface area80-110m2/g,BET/CTAB ratio0.9 to 1.03,DBP value210-280g/(100 g),Sears value V221-30ml/(5 g),Moisture level4-8%,andRatio of Sears value V2 to 0.150 to 0.370ml/(5 m2)BET surface area. | ||
| 地址 | Essen DE | ||