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. 26, 2013
Filed:
Nov. 21, 2007
Si-jae Park, Daejeon, KR;
Taek-ho Yang, Daejeon, KR;
Hye-ok Kang, Daejeon, KR;
Sang-hyun Lee, Daejeon, KR;
Eun-jeong Lee, Daejeon, KR;
Tae-wan Kim, Daejeon, KR;
Sang-yup Lee, Daejeon, KR;
Si-Jae Park, Daejeon, KR;
Taek-Ho Yang, Daejeon, KR;
Hye-Ok Kang, Daejeon, KR;
Sang-Hyun Lee, Daejeon, KR;
Eun-Jeong Lee, Daejeon, KR;
Tae-Wan Kim, Daejeon, KR;
Sang-Yup Lee, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
The present invention relates to a copolymer comprising 4-hydroxybutyrate monomer unit and lactate monomer unit, a copolymer 4-hydroxybutyrate monomer unit, lactate monomer unit and 3-hydroxyalkanoate, or their preparing method. More specifically, the present invention relates to a method for preparing a copolymer comprising lactate monomer; 4-hydroxybutyrate monomer; and optionally 3-hydroxyalkanoate, wherein the method comprises culturing a cell or plant comprising the gene of enzyme converting lactate and 3-hydroxyalkanoate into lactyl-CoA and 3-hydroxyalkanoyl-CoA, respectively, phosphotransbutylase gene, butyrate kinase gene and polyhydroxyalkanoate synthase gene together, and the copolymer made by the method. The copolymer of the present invention is a biodegradable polymer being able to be usefully used instead of conventional synthetic plastic, and the copolymer can be used for medical use.