发明名称 |
SURFACE-MODIFIED, PYROGENICALLY PREPARED SILICAS |
摘要 |
Surface-modified, pyrogenically prepared silica is prepared by subjecting the pyrogenically prepared silica, which is in the form of aggregates of primary particles and possesses a BET surface area of 150±15 m2/g, the aggregates having an average area of 12 000-20 000 nm2, an average equivalent circle diameter (ECD) of 90-120 nm and an average circumference of 1150-1700 nm, to surface-modification in a known way. It can be used as a filler for thickening liquid systems. |
申请公布号 |
EP2171000(A1) |
申请公布日期 |
2010.04.07 |
申请号 |
EP20080774566 |
申请日期 |
2008.07.01 |
申请人 |
EVONIK DEGUSSA GMBH |
发明人 |
MEYER, JUERGEN;SCHOLZ, MARIO;SCHUMACHER, KAI |
分类号 |
C09C1/30;B82Y30/00;C08K3/36;C08K9/06;C09D7/00;C09D7/12 |
主分类号 |
C09C1/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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