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:
Sep. 11, 2012
Filed:
Jun. 20, 2005
I-chien Wei, Kaohsiung, TW;
Kung-hsing Lee, Kaohsiung, TW;
Hsien-ming Hung, Kaohsiung, TW;
Ning Tsao, Kaohsiung, TW;
Meng-hui Hsu, Kaohsiung, TW;
Shan-ying Lin, Kaohsiung, TW;
Ya-hui Huang, Feng-Shan, TW;
I-Chien Wei, Kaohsiung, TW;
Kung-Hsing Lee, Kaohsiung, TW;
Hsien-Ming Hung, Kaohsiung, TW;
Ning Tsao, Kaohsiung, TW;
Meng-Hui Hsu, Kaohsiung, TW;
Shan-Ying Lin, Kaohsiung, TW;
Ya-Hui Huang, Feng-Shan, TW;
Taiwan Hopax Chemicals Manufacturing Company, Ltd., Feng-Shan, Kaohsiung Hsien, TW;
Abstract
This invention discloses chemically modified polyaminosaccharides, in particular chemically modified chitosans, in the molecular structure of which a predetermined proportion of the amino functional groups is sulfonated by the hydrocarbyl sultone compound via a covalent bond. Such chemically modified polyaminosaccharides may be produced by a process of sulfonating an un-modified polyaminosaccharide having amino functional groups by a hydrocarbyl sultone compound in the presence of an organic solvent under a suitable temperature. Chemically modified chitosans of this invention may be used in a variety of applications, including wound healing.