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:
Mar. 29, 2022
Filed:
Mar. 22, 2019
Applicant:
Shiseido Company, Ltd., Tokyo, JP;
Inventors:
Yuki Sugiyama, Kanagawa, JP;
Ryushi Fukuhara, Kanagawa, JP;
Assignee:
Shiseido Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 8/91 (2006.01); C08F 290/06 (2006.01); A61K 8/06 (2006.01); A61K 8/02 (2006.01); A61Q 19/00 (2006.01);
U.S. Cl.
CPC ...
A61K 8/91 (2013.01); A61K 8/0245 (2013.01); A61K 8/062 (2013.01); A61K 8/064 (2013.01); A61Q 19/00 (2013.01); C08F 290/068 (2013.01); A61K 2800/10 (2013.01); A61K 2800/26 (2013.01);
Abstract
Provided are a raw material for a cosmetic and an oil-in-water emulsion cosmetic comprising a core-corona polymer particle excellent in emulsion stability and feeling of use. Certain embodiments of the present invention provides a raw material for a cosmetic, comprising a core-corona polymer particle dispersion obtained by radical-polymerizing a polyethylene oxide macromonomer represented by formula (1) and one or two or more of hydrophobic monomers represented by formulas (2) and (3) under conditions (A) to (D).