- 专利标题： DISPERSION OF TITANIUM DIOXIDE MICROPARTICLES IN ORGANIC SOLVENT, METHOD FOR PRODUCING SAME, AND USE OF SAME
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申请号： EP20891684.1申请日： 2020-11-19
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公开(公告)号： EP4067309A1公开(公告)日： 2022-10-05
- 发明人: TAKIMOTO, Tadahiko , KATO, Hironori
- 申请人： Ishihara Sangyo Kaisha, Ltd.
- 申请人地址： JP Osaka-shi, Osaka 550-0002 3-15, Edobori 1-chome Nishi-ku
- 代理机构： Grünecker Patent- und Rechtsanwälte PartG mbB
- 优先权： JP2019216316 20191129
- 国际公布： WO2021106747 20210603
- 主分类号： C01G23/047
- IPC分类号： C01G23/047 ; C09C1/36 ; C09C3/06 ; C09D17/00 ; C09D201/00 ; C09D7/61 ; C09D7/63 ; C09D7/65
摘要：
Provided are: dispersion in which titanium dioxide microparticles are highly dispersed in an organic solvent; and a method for producing the dispersion.
The dispersion comprises at least titanium dioxide microparticles, an organic solvent, a silane coupling agent, and a dispersant having a basic adsorptive group, wherein the ratio of the mass of the dispersant to that of the silane coupling agent is 15 to 75 % by mass. It is preferred that the ratio of the total mass of the silane coupling agent and the dispersant to the mass of the titanium dioxide microparticles is 10 to 40% by mass. The dispersion is produced by dispersing the titanium dioxide microparticles together with the above-specified amounts of the silane coupling agent and the dispersant having a basic adsorptive group in the organic solvent.
The dispersion comprises at least titanium dioxide microparticles, an organic solvent, a silane coupling agent, and a dispersant having a basic adsorptive group, wherein the ratio of the mass of the dispersant to that of the silane coupling agent is 15 to 75 % by mass. It is preferred that the ratio of the total mass of the silane coupling agent and the dispersant to the mass of the titanium dioxide microparticles is 10 to 40% by mass. The dispersion is produced by dispersing the titanium dioxide microparticles together with the above-specified amounts of the silane coupling agent and the dispersant having a basic adsorptive group in the organic solvent.
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