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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 10278903 B1

PDFFull Text
Date of Patent:
May. 07, 2019

Filed:

Nov. 24, 2015

Composite powder having inorganic powder impregnated with porous polymer, cosmetic composition containing same, and method for preparing same

Applicant:

Amorepacific Corporation, Seoul, KR;

Inventors:

Hyun Suk Lee, Yongin-si, KR;

Yong Jin Kim, Yongin-si, KR;

Jon Hwan Lee, Yongin-si, KR;

Se Jun Park, Yongin-si, KR;

Kyung Ho Choi, Yongin-si, KR;

Yeong Jin Choi, Yongin-si, KR;

Sung-Wook Choi, Bucheon-si, KR;

Dong-Hyun Paik, Siheung-si, KR;

Assignee:

AMOREPACIFIC CORPORATION, Seoul, KR;

Attorney:

Lucas & Mercanti, LLP

Primary Examiner:

Ernst V Arnold

Int. Cl.
CPC ...
A61K 8/29 (2006.01); A61K 8/02 (2006.01); A61K 8/27 (2006.01); A61K 8/19 (2006.01); A61K 8/81 (2006.01); A61Q 1/02 (2006.01); C08J 3/12 (2006.01); A61K 8/26 (2006.01); A61Q 1/00 (2006.01); A61Q 1/12 (2006.01);
U.S. Cl.
CPC ...
A61K 8/022 (2013.01); A61K 8/0279 (2013.01); A61K 8/19 (2013.01); A61K 8/26 (2013.01); A61K 8/27 (2013.01); A61K 8/29 (2013.01); A61K 8/817 (2013.01); A61K 8/8147 (2013.01); A61K 8/8152 (2013.01); A61K 8/8176 (2013.01); A61Q 1/00 (2013.01); A61Q 1/02 (2013.01); A61Q 1/12 (2013.01); C08J 3/122 (2013.01); A61K 2800/654 (2013.01); C08J 2333/02 (2013.01);
Abstract

The present invention relates to composite powder having enhanced water repellency and oil absorbency by means of even impregnation of inorganic powder particles with a super-water-repellent porous polymer. The composite powder prepared by means of a one-step spraying procedure of electro-spraying or spray drying, according to the present invention, shows super water repellency and maximized oil absorbency by means of increased porosity of porous polymethyl methacrylate (PMMA) and even impregnation with titanium dioxide (TiO) nanoparticles.

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