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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.:

US 9539553 B1

PDFFull Text
Date of Patent:
Jan. 10, 2017

Filed:

Oct. 17, 2012

Corona-core microgel emulsifying agent and oil-in-water emulsified composition

Applicant:

Shiseido Company, Ltd., Tokyo, JP;

Inventors:

Yuki Sugiyama, Yokohama, JP;

Tomoko Sato, Yokohama, JP;

Ken Shoji, Yokohama, JP;

Assignee:

SHISEIDO COMPANY, LTD., Tokyo, JP;

Attorney:
Primary Examiner:

Jessica Worsham

Int. Cl.
CPC ...
A61K 8/06 (2006.01); A61K 8/81 (2006.01); A61Q 13/00 (2006.01); B01F 17/00 (2006.01); A61Q 19/00 (2006.01); C08F 290/06 (2006.01); C08F 220/18 (2006.01); C11B 9/00 (2006.01); A61K 8/91 (2006.01); C08F 220/14 (2006.01); C08F 220/28 (2006.01); C08L 33/10 (2006.01); C08L 33/12 (2006.01); A61Q 17/04 (2006.01);
U.S. Cl.
CPC ...
B01F 17/0028 (2013.01); A61K 8/062 (2013.01); A61K 8/8152 (2013.01); A61K 8/91 (2013.01); A61Q 13/00 (2013.01); A61Q 19/00 (2013.01); B01F 17/0021 (2013.01); C08F 220/14 (2013.01); C08F 220/18 (2013.01); C08F 220/28 (2013.01); C08F 290/062 (2013.01); C08L 33/10 (2013.01); C08L 33/12 (2013.01); C11B 9/00 (2013.01); A61K 2800/10 (2013.01); A61K 2800/54 (2013.01); A61K 2800/95 (2013.01); A61Q 17/04 (2013.01); A61Q 19/005 (2013.01);
Abstract

The present invention provides a corona-core microgel emulsifying agent composed of a copolymer obtained by polymerizing polyethylene oxide macromonomers, hydrophobic monomers, and cross-linking monomers under specific conditions as well as an oil-in-water emulsified composition characteristically using said emulsifying agent for emulsification. The object of the present invention is to provide a new corona-core microgel emulsifying agent to be used to prepare an oil-in-water emulsified composition that manifests superior emulsification stability, stability over time, and low skin irritation, and is free of stickiness at the time of application, manifests dewy freshness, is free of powdery sensation and/or squeakiness, and is superior in durability of fragrance, as well as an oil-in-water emulsified composition emulsified with said emulsifying agent.

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