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:
Jun. 27, 2017
Filed:
Mar. 18, 2014
Applicant:
Cosmax Co., Ltd., Hwaseong-si, KR;
Inventors:
Assignee:
COSMAX CO., LTD., Hwaseong-si, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J 9/28 (2006.01); C08F 20/10 (2006.01); C08F 2/22 (2006.01); A61Q 19/00 (2006.01); A61K 8/81 (2006.01); C08J 9/00 (2006.01); C08J 9/16 (2006.01); C08J 3/09 (2006.01); C08F 220/14 (2006.01);
U.S. Cl.
CPC ...
C08J 9/286 (2013.01); A61K 8/8152 (2013.01); A61Q 19/00 (2013.01); C08F 2/22 (2013.01); C08F 20/10 (2013.01); C08J 9/0061 (2013.01); C08J 9/16 (2013.01); A61K 2800/40 (2013.01); C08F 220/14 (2013.01); C08J 3/09 (2013.01); C08J 2205/042 (2013.01); C08J 2205/044 (2013.01); C08J 2329/04 (2013.01); C08J 2333/12 (2013.01); C08J 2429/04 (2013.01); C08J 2433/12 (2013.01); C08J 2471/02 (2013.01);
Abstract
A method for preparing macroporous polymethyl methacrylate (PMMA) particles includes the steps of: (a) dissolving a polymethyl methacrylate polymer and Pluronic polymer into an organic solvent; (b) introducing the mixed solution of step (a) to an aqueous solution containing a surfactant to carry out emulsion polymerization; (c) heating the resultant product of step (b) to allow evaporation of the organic solvent; and (d) washing and drying the porous polymethyl methacrylate particles remaining after the evaporation.