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公开(公告)号:US3498924A
公开(公告)日:1970-03-03
申请号:US3498924D
申请日:1966-03-10
申请人: PPG INDUSTRIES INC
发明人: WALSH ROBERT H , DIETZ ALBERT
CPC分类号: C01B11/062
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公开(公告)号:US3902915A
公开(公告)日:1975-09-02
申请号:US26778372
申请日:1972-06-30
申请人: PPG INDUSTRIES INC
发明人: CRAWFORD ROGER A , WALSH ROBERT H
CPC分类号: C09C1/309 , C01P2004/50 , C01P2004/60 , C01P2006/60 , C08K3/36 , C08K9/04 , C08L21/00
摘要: Readily dispersible pelletized silica, useful as rubber and paper pigments are provided by treating an aqueous silica slurry having a solids content less than about 25 percent by weight, with a minor amount of a surface active agent, preferably a cationic dialkyl dimethyl ammonium chloride followed by simultaneously pelletizing and drying the silica in a moving bed.
摘要翻译: 通过用少量的表面活性剂,优选阳离子二烷基二甲基氯化铵处理具有小于约25重量%的固体含量的二氧化硅水溶液,然后加入用作橡胶和纸颜料的容易分散的颗粒状二氧化硅 同时在移动床中造粒和干燥二氧化硅。
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公开(公告)号:US3545994A
公开(公告)日:1970-12-08
申请号:US3545994D
申请日:1969-11-07
申请人: PPG INDUSTRIES INC
发明人: LOTT HARRY JR , WALSH ROBERT H
CPC分类号: C09C1/3692 , C01P2004/80 , C01P2006/60 , C09C3/063 , C09C3/08 , C09C3/12
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公开(公告)号:US3522078A
公开(公告)日:1970-07-28
申请号:US3522078D
申请日:1967-04-21
申请人: PPG INDUSTRIES INC
发明人: MAY RUSSELL R JR , WALSH ROBERT H
IPC分类号: C09C1/36
CPC分类号: C09C1/3661 , C01P2004/84 , C01P2006/19 , C01P2006/60
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