公开(公告)号：US20190350822A1

公开(公告)日：2019-11-21

申请号：US16476109

申请日：2018-01-05

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Tetsuro ITAGAKI ,  Hirokazu MATSUSHITA ,  Norito MORISHITA

IPC: A61K8/06 ,  A61Q17/04 ,  A61K8/25 ,  A61K8/28 ,  A61K8/58 ,  A61K8/27

Abstract: In an ultraviolet-shielding particle coated with silicon oxide of the present invention, a surface of the ultraviolet-shielding particle is coated with a silicon oxide coat, at least one functional group selected from the group consisting of an alkyl group, an alkenyl group, and a cycloalkyl group is present on a surface of the silicon oxide coat, and a content of the functional group is 0.0001% by mass or more and 0.30% by mass or less.

公开(公告)号：US20180289600A1

公开(公告)日：2018-10-11

申请号：US15525536

申请日：2015-11-11

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Syunsuke SUMA ,  Tetsuro ITAGAKI ,  Hirokazu MATSUSHITA

IPC: A61K8/25 ,  A61K8/02 ,  A61K8/27 ,  A61Q1/02 ,  A61Q1/04 ,  A61Q1/08 ,  A61Q1/10 ,  A61Q17/04 ,  A61Q19/00 ,  C09C1/04

Abstract: The present invention provides silicon oxide-coated zinc oxide in which, in a silica coating formed of a silicate alkali metal salt, the elution of zinc ions is suppressed, a method for preparing the same, a composition containing silicon oxide-coated zinc oxide, and a cosmetic material. The silicon oxide-coated zinc oxide of the present invention is silicon oxide-coated zinc oxide formed by coating surfaces of zinc oxide particles with a silicon oxide coating, in which an average primary particle diameter of the zinc oxide particles is more than 50 nm and 500 nm or less, and when held in a buffer solution having a pH of 5 for 1 hour, an elution ratio S of the zinc oxide defined by following Expression (1) is 50% or less. Elution ratio S=(amount of eluted zinc oxide)/(amount of zinc oxide in silicon oxide-coated zinc oxide)   (1)

公开(公告)号：US20180161255A1

公开(公告)日：2018-06-14

申请号：US15553146

申请日：2016-02-24

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Syunsuke SUMA ,  Tetsuro ITAGAKI ,  Gaku FUJIHASHI ,  Hirokazu MATSUSHITA

IPC: A61K8/27 ,  A61K8/25 ,  A61Q17/04

CPC classification number: A61K8/27 ,  A61K8/25 ,  A61K8/8147 ,  A61K2800/62 ,  A61Q17/04 ,  C01P2002/52 ,  C01P2004/03 ,  C01P2004/60 ,  C01P2004/84 ,  C09C1/043

Abstract: Provided is silicon oxide-coated zinc oxide, which can inhibit a decrease in viscosity resulting from a carbomer in a case where the silicon oxide-coated zinc oxide is used in water-based materials, a composition containing silicon oxide-coated zinc oxide, and a cosmetic product. The silicon oxide-coated zinc oxide of the present invention contains zinc oxide particles and a silicon oxide coating on a surface of the zinc oxide particles, in which an electric conductivity of a water suspension of the silicon oxide-coated zinc oxide is 120 μS/cm or less.

公开(公告)号：US20150147370A1

公开(公告)日：2015-05-28

申请号：US14613921

申请日：2015-02-04

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Hirokazu MATSUSHITA ,  Shingo HOSODA ,  Chiaki KATAYAMA

IPC: A61K8/81 ,  A61Q17/04 ,  A61K8/19

CPC classification number: A61K8/8141 ,  A61K8/11 ,  A61K8/19 ,  A61K8/27 ,  A61K8/29 ,  A61K8/8152 ,  A61K2800/412 ,  A61K2800/413 ,  A61K2800/624 ,  A61K2800/95 ,  A61Q17/04 ,  C08F2/22 ,  C08F2/44 ,  C08K3/22 ,  C08K2003/2213 ,  C08K2003/2237 ,  C08K2003/2265 ,  C08K2003/2296 ,  C08K2201/003 ,  C08L33/00

Abstract: The present invention relates to a method for manufacturing metallic oxide particle-containing resin powder including: dispersing metallic oxide particles having a specific average particle diameter and a UV shielding function in a (meth)acrylic-based resin monomer to produce a (meth)acrylic-based resin monomer dispersion liquid; suspending or emulsifying the (meth)acrylic-based resin monomer dispersion liquid; and, adding a polymerization initiator to cause suspension polymerization or emulsification polymerization, thereby generating metallic oxide particle-containing resin powder, and provides metallic oxide particles which are dispersed in the resin powder without being exposed on the surface of the resin powder, the powder includes fine particles, the UV absorbing performance, and the transparency with respect to visible light rays are improved.

Abstract translation: 本发明涉及含金属氧化物粒子的树脂粉末的制造方法，其特征在于，在（甲基）丙烯酸类树脂单体中分散具有特定平均粒径和紫外线屏蔽功能的金属氧化物粒子，制造（甲基）丙烯酸 基树脂单体分散液; 悬浮或乳化（甲基）丙烯酸系树脂单体分散液; 并加入聚合引发剂进行悬浮聚合或乳化聚合，从而产生含金属氧化物颗粒的树脂粉末，并且提供分散在树脂粉末中的金属氧化物颗粒，而不暴露在树脂粉末的表面上，粉末包括 提高了细颗粒，UV吸收性能和相对于可见光线的透明度。