| 发明名称 |
Precipitated silicas |
| 摘要 |
Rubber compositions comprising a precipitated silica with the following physicochemical properties: <table-cwu id="TABLE-US-00001"> <number>1</number> <table frame="none" colsep="0" rowsep="0"> <tgroup align="left" colsep="0" rowsep="0" cols="3"> <colspec colname="OFFSET" colwidth="21PT" align="left"/> <colspec colname="1" colwidth="105PT" align="left"/> <colspec colname="2" colwidth="91PT" align="left"/> <thead> <row> <entry></entry> <entry></entry> </row> <row> <entry></entry> <entry namest="OFFSET" nameend="2" align="center" rowsep="1"></entry> </row> </thead> <tbody valign="top"> <row> <entry></entry> <entry>BET surface area</entry> <entry>  35 to 350 m2/g</entry> </row> <row> <entry></entry> <entry>BET/CTAB surface area ratio</entry> <entry> 0.8 to 1.1</entry> </row> <row> <entry></entry> <entry>Pore volume, PV</entry> <entry> 1.6 to 3.4 ml/g</entry> </row> <row> <entry></entry> <entry>Silanol group density (V2 =</entry> <entry>  6 to 20 ml</entry> </row> <row> <entry></entry> <entry>NaOH consumption)</entry> </row> <row> <entry></entry> <entry>Average aggregate size</entry> <entry> 250 to 1500 nm</entry> </row> <row> <entry></entry> <entry>CTAB surface area</entry> <entry>  30 to 350 m2/g</entry> </row> <row> <entry></entry> <entry>DBP value</entry> <entry> 150 to 300 ml/100 g</entry> </row> <row> <entry></entry> <entry>V2/V1 by Hg porosimetry</entry> <entry>0.19 to 0.46</entry> </row> <row> <entry></entry> <entry>DBP/CTAB</entry> <entry> 1.2 to 3.5.</entry> </row> <row> <entry></entry> <entry namest="OFFSET" nameend="2" align="center" rowsep="1"></entry> </row> </tbody> </tgroup> </table> </table-cwu>
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| 申请公布号 |
US2002169248(A1) |
申请公布日期 |
2002.11.14 |
| 申请号 |
US20010986468 |
申请日期 |
2001.11.08 |
| 申请人 |
ESCH HEINZ;GORL UDO;KUHLMANN ROBERT;RAUSCH RALF |
发明人 |
ESCH HEINZ;GORL UDO;KUHLMANN ROBERT;RAUSCH RALF |
| 分类号 |
C01B33/193;C08K3/36;(IPC1-7):C01B33/12 |
主分类号 |
C01B33/193 |
| 代理机构 |
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