发明名称 SURFACE-MODIFIED TITANIUM DIOXIDE FINE PARTICLES AND DISPERSION COMPRISING THE SAME, AND METHOD FOR PRODUCING THE SAME
摘要 <p>Surface-modified titanium dioxide fine particles which have a surface chemically modified with a hydrophilic polymer, wherein a carboxyl group of the hydrophilic polymer and titanium dioxide are bound through an ester bonding; and a method for producing the surface-modified titanium dioxide fine particles, which comprises mixing a dispersion comprising titanium dioxide fine particles having a particle size of 2 to 200 nm and a solution of a water-soluble polymer, heating the resultant mixture to a temperature of 80 to 220°C, to thereby bind both the components through an ester bonding, and removing an unbound water-soluble polymer, to purify the resultant particles. The surface -modified titanium dioxide fine particles exhibit excellent dispersibility and stability in an aqueous solvent over a wide pH region including a neutral range.</p>
申请公布号 WO2004087577(A1) 申请公布日期 2004.10.14
申请号 WO2004JP04635 申请日期 2004.03.31
申请人 TOTO LTD.;SONEZAKI, SHUJI;BANZAI, TOSHIAKI;KANEHIRA, KOKI;YAGI, SHINICHI;OGAMI, YUMI 发明人 SONEZAKI, SHUJI;BANZAI, TOSHIAKI;KANEHIRA, KOKI;YAGI, SHINICHI;OGAMI, YUMI
分类号 A61K33/24;A61K41/00;B01J31/06;B01J35/00;C02F1/30;C02F1/32;C09C1/36;(IPC1-7):C01G23/047;A61K33/00;B01J35/02;A61K47/48;A61K47/02 主分类号 A61K33/24
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