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:
Feb. 01, 2011
Filed:
Oct. 17, 2002
Min-hyo Seo, Daejeon, KR;
Sa-won Lee, Daejeon, KR;
Hee-jo Kim, Daejeon, KR;
Jeong-kyung Kim, Daejeon, KR;
Myung-han Huyn, Daejeon, KR;
Jeong-il Yu, Daejeon, KR;
Bong-oh Kim, Daejeon, KR;
Min-Hyo Seo, Daejeon, KR;
Sa-Won Lee, Daejeon, KR;
Hee-Jo Kim, Daejeon, KR;
Jeong-Kyung Kim, Daejeon, KR;
Myung-Han Huyn, Daejeon, KR;
Jeong-il Yu, Daejeon, KR;
Bong-Oh Kim, Daejeon, KR;
Samyang Corporation, Seoul, KR;
Abstract
Polymeric compositions capable of forming stable micelles in an aqueous solution, comprising an amphiphilic block copolymer of a hydrophilic block and a hydrophobic block, and a polylactic acid derivative wherein one end of the polylactic acid is covalently bound to at least one carboxyl group. The carboxyl group of the polylactic acid derivative may be fixed with a di- or tri-valent metal ion, obtained by adding the di- or tri-valent metal ion to the polymeric composition.