公开(公告)号：EP3845494A1

公开(公告)日：2021-07-07

申请号：EP19855425.5

申请日：2019-08-30

申请人： Sumitomo Osaka Cement Co., Ltd.

发明人： YAKUBO, Teppei ,  ITO, Naoko

IPC分类号： C01G23/04 ,  A61K8/29 ,  A61Q1/12

摘要： A titanium oxide powder of the present invention contains a polyhedral-shaped titanium oxide particles, in which each particle of the polyhedral-shaped titanium oxide particles has eight or more faces and an average primary particle diameter is 300 nm or higher and 1000 nm or lower, and a crystallinity is 0.95 or higher.

公开(公告)号：EP3995453A1

公开(公告)日：2022-05-11

申请号：EP20834786.4

申请日：2020-07-03

申请人： Sumitomo Osaka Cement Co., Ltd.

发明人： YAKUBO, Teppei ,  ITO, Naoko ,  NEYA, Tadashi

IPC分类号： C01G23/053 ,  C09C1/36 ,  C09D17/00 ,  A61Q1/12 ,  A61K8/29

摘要： A titanium oxide powder of the present invention has a BET specific surface area of 5 m 2 /g or higher and 15 m 2 /g or lower and contains single-crystalline titanium oxide particles, in which a value (d10/d50) that is obtained by dividing a value (d10), which is obtained when a particle size distribution represented by a cumulative volume percentage of primary particle diameters of the titanium oxide particles is 10%, by a value (d50), which is obtained when a particle size distribution represented by a cumulative volume percentage thereof is 50%, is 0.3 or higher and 1 or lower, an amount of titanium oxide thereof is 99.0% by mass or more, and the titanium oxide powder has an anatase-type crystalline phase.