The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 25, 2018
Filed:
Oct. 16, 2013
Applicant:
Sakai Chemical Industry Co., Ltd., Sakai-shi, Osaka, JP;
Inventors:
Assignee:
SAKAI CHEMICAL INDUSTRY CO., LTD., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
A61K 8/25 (2006.01); A61Q 1/12 (2006.01); A61K 8/19 (2006.01); A61K 8/891 (2006.01); A61K 8/02 (2006.01); C09C 1/02 (2006.01); C01F 11/18 (2006.01);
U.S. Cl.
CPC ...
A61K 8/25 (2013.01); A61K 8/025 (2013.01); A61K 8/0241 (2013.01); A61K 8/19 (2013.01); A61K 8/891 (2013.01); A61Q 1/12 (2013.01); C01F 11/18 (2013.01); C09C 1/024 (2013.01); A61K 2800/412 (2013.01); A61K 2800/621 (2013.01); A61K 2800/63 (2013.01); A61K 2800/651 (2013.01); A61K 2800/654 (2013.01); C01P 2004/32 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01);
Abstract
The invention provides surface-treated spherical calcium carbonate particles for use in cosmetics which comprise spherical calcium carbonate particles having a volume mean diameter in a range of 0.5 to 20 μm, and having on their surfaces a hydrous silica coating, and further a silicone oil coating on the hydrous silica coating. The surface-treated spherical calcium carbonate particles for use in cosmetics are obtained by forming a hydrous silica coating on the surfaces of spherical calcium carbonate particles, and then by forming a silicone oil coating on the surfaces of the hydrous silica coating of the particles.