公开(公告)号：EP4458768A1

公开(公告)日：2024-11-06

申请号：EP22915822.5

申请日：2022-12-20

申请人： Kao Corporation

发明人： ASANO, Moeko ,  TEZUKA, Hikaru ,  ISHIYAMA, Shogo ,  TAKAI, Masanori

IPC分类号： C01B33/18 ,  A61K8/25 ,  A61K8/73 ,  A61K8/893 ,  A61K8/894 ,  A61Q1/00 ,  A61Q3/02 ,  A61Q5/00 ,  C01B33/40 ,  C01B33/42

摘要： The present invention relates to a surface-coated particle in which a portion or all of the surface of a particle (A) is coated with a surface treatment agent (B), wherein a dynamic friction coefficient of the surface-coated particle is 0.50 or less, when a 5% by mass ethanol dispersion of the surface-coated particle is applied onto a polyurethane substrate in an amount of 2 mg/cm 2 , and dried for 24 hours under atmospheric pressure at 23°C, followed by measurement under conditions of a load of 3.53 N, a moving speed of 10 mm/sec, a moving distance of 50 mm, 30 reciprocations, and a temperature of 25±2°C, and the standard deviation of the dynamic friction coefficient is 0.020 or less.

公开(公告)号：EP4458767A1

公开(公告)日：2024-11-06

申请号：EP22915821.7

申请日：2022-12-20

申请人： Kao Corporation

发明人： ASANO, Moeko ,  TEZUKA, Hikaru ,  TAKAI, Masanori

IPC分类号： C01B33/18 ,  A61K8/25 ,  A61K8/73 ,  A61K8/893 ,  A61K8/894 ,  A61Q1/00 ,  A61Q3/02 ,  A61Q5/00 ,  C01B33/40 ,  C01B33/42

摘要： The present invention relates to surface-coated inorganic particles in which a portion or all of the surface of inorganic particles (A) is coated with a surface treatment agent (B), wherein the inorganic particles (A) comprise silica particles or silicate mineral particles, the surface treatment agent (B) comprises at least one selected from the group consisting of a modified silicone (b 1) liquid at 25°C and a water-soluble cationic polymer (b2), and the modified silicone (b 1) comprises at least one selected from the group consisting of a polyether-modified silicone, a polyglycerin-modified silicone, a branched polyglycerol-modified silicone and an alkyl glyceryl ether-modified silicone.