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. 13, 2022
Filed:
Oct. 16, 2017
Applicant:
Shiseido Company, Ltd., Tokyo, JP;
Inventors:
Assignee:
SHISEIDO COMPANY, LTD., Tokyo, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 8/81 (2006.01); A61Q 19/00 (2006.01); C08F 120/06 (2006.01); C08F 8/44 (2006.01); C08F 120/58 (2006.01);
U.S. Cl.
CPC ...
A61K 8/8147 (2013.01); A61K 8/8152 (2013.01); A61K 8/8158 (2013.01); A61Q 19/00 (2013.01); C08F 8/44 (2013.01); C08F 120/06 (2013.01); C08F 120/58 (2013.01); A61K 2800/10 (2013.01); A61K 2800/48 (2013.01);
Abstract
Aqueous compositions can be thickened without increasing stringiness, by using polymers of polyacrylic acid, poly(2-acryamide-2-methylpropanesulfonate), or salts thereof, having a weight average molecular weights of 500,000 to 8,000,000 as thickeners. The polymers contain no more than 10 mass % of polymers having a molecular weight of 10,000,00 or more, and/or contain no more than 10 mass % of polymers having more than three times the weight average molecular weight. Aqueous solutions of these polymers exhibit a low degree of stringiness, and are particularly useful as thickeners for cosmetics.