发明公开
EP0222420A2 Process for coating inorganic particles with condensation polymers
失效
Verfahren zumUmhüllenaorganischer Partikel mit Polykondensaten。
- 专利标题： Process for coating inorganic particles with condensation polymers
- 专利标题（中）： Verfahren zumUmhüllenaorganischer Partikel mit Polykondensaten。
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申请号： EP86200548.5申请日： 1986-04-02
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公开(公告)号： EP0222420A2公开(公告)日： 1987-05-20
- 发明人: Scholten, Pieter Cornelis , Snyder, Fred W. , Sorkin, Howard
- 申请人： Philips Electronics N.V.
- 申请人地址： Groenewoudseweg 1 5621 BA Eindhoven NL
- 专利权人： Philips Electronics N.V.
- 当前专利权人： Philips Electronics N.V.
- 当前专利权人地址： Groenewoudseweg 1 5621 BA Eindhoven NL
- 代理机构： Weening, Cornelis (NL)
- 优先权： US787408 19851015
- 主分类号： C09C3/08
- IPC分类号： C09C3/08 ; C09C1/36 ; C08G69/28 ; C08G85/00 ; B05D7/00
摘要：
The invention provides a process for the production of coatings of condensation polymers on inorganic particles, in which the product consists mainly of polymer particles which particles contain one or a few pigment particles, and essentially no large aggregates and pigment-free particles. In the method the thickness of the coating can be adjusted through the quantity of monomer added.
In the process two separate stable suspensions are formed, one of these suspensions being that of a solid monomer in a first organic liquid, the other suspension being of finely divided inorganic particles in a second organic liquid, miscible with the first organic liquid. Further, said first suspension is added to said second suspension while stirring and heating said second suspension to the polymerization temperature of said monomer.
In the process two separate stable suspensions are formed, one of these suspensions being that of a solid monomer in a first organic liquid, the other suspension being of finely divided inorganic particles in a second organic liquid, miscible with the first organic liquid. Further, said first suspension is added to said second suspension while stirring and heating said second suspension to the polymerization temperature of said monomer.
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