DISPERSION OF TITANIUM DIOXIDE MICROPARTICLES IN ORGANIC SOLVENT, METHOD FOR PRODUCING SAME, AND USE OF SAME
申请人:Ishihara Sangyo Kaisha, Ltd.
公开号:EP4067309A1
公开(公告)日:2022-10-05
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.
本文提供了:二氧化钛微粒在有机溶剂中高度分散的分散液;以及生产该分散液的方法。
该分散液至少包括二氧化钛微颗粒、有机溶剂、硅烷偶联剂和具有碱性吸附基团的分散剂,其中分散剂与硅烷偶联剂的质量比为 15% 至 75%(按质量计)。硅烷偶联剂和分散剂的总质量与二氧化钛微粒的质量之比最好为 10%至 40%。将二氧化钛微粒与上述规定量的硅烷偶联剂和具有碱性吸附基团的分散剂一起分散在有机溶剂中,即可制得分散液。