公开(公告)号：EP2974793A4

公开(公告)日：2016-11-30

申请号：EP14764090

申请日：2014-03-06

申请人： DAICEL CORP

发明人： KOJIMA RYOUTA ,  FUKUI NAOYUKI ,  WATANABE HITOSHI

IPC分类号： B01J35/02 ,  B01D53/86 ,  B01J23/745 ,  C09D5/16 ,  C09D7/12 ,  C09D201/00

CPC分类号： B01J21/063 ,  B01D53/8668 ,  B01D2255/20707 ,  B01D2255/20738 ,  B01D2255/802 ,  B01D2257/306 ,  B01D2257/708 ,  B01D2257/90 ,  B01D2257/91 ,  B01D2258/06 ,  B01D2259/4508 ,  B01D2259/4591 ,  B01D2259/804 ,  B01J23/745 ,  B01J31/06 ,  B01J31/26 ,  B01J35/004 ,  B01J35/1014 ,  B01J37/0203 ,  B01J37/0219 ,  C08F220/06 ,  C09D5/16 ,  C09D5/1606 ,  C09D7/12 ,  C09D7/1208 ,  C09D7/40 ,  C09D7/60 ,  C09D201/00

摘要： Provided is a titanium oxide dispersion liquid that has dispersibility and dispersion stability both at superior levels and, when applied and dried, can form a photocatalyst coating film capable of rapidly developing excellent photocatalytic activity. The titanium oxide dispersion liquid according to the present invention includes titanium oxide particles (A), a dispersing agent (B), and a solvent (C). The titanium oxide particles (A) support a transition metal compound. The dispersing agent (B) includes a poly(acrylic acid) or a salt thereof. The poly(acrylic acid) or a salt thereof in the dispersing agent (B) preferably includes a poly(acrylic acid) alkali metal salt. The poly(acrylic acid) or a salt thereof in the dispersing agent (B) preferably has a weight-average molecular weight of from 1000 to 100000.