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:
Nov. 13, 2012
Filed:
Nov. 23, 2010
Ya-jen Yu, Taipei, TW;
Chin-fu Chen, Taipei, TW;
Tsai-yu Lin, Changhua, TW;
Shao-jen Yeh, Jhongpu Township, TW;
Shian-yih Wang, Taipei, TW;
Po-liang Lai, Changhua, TW;
Ya-Jen Yu, Taipei, TW;
Chin-Fu Chen, Taipei, TW;
Tsai-Yu Lin, Changhua, TW;
Shao-Jen Yeh, Jhongpu Township, TW;
Shian-Yih Wang, Taipei, TW;
Po-Liang Lai, Changhua, TW;
Abstract
The disclosed is a biodegradable copolymer, an amphiphilic diblock copolymer, composed of a hydrophilic segment and a hydrophobic segment. The hydrophilic segment is an endcapped PEG or derivatives thereof. The hydrophilic segment is a random polymer polymerized of lactone or cyclic C-Cmolecule and lactic acid/glycolic acid. There is no coupling agent between the hydrophilic and hydrophobic segments, and the biodegradable copolymer is formed by one-pot ring-opening polymerization. The biodegradable copolymer can be dissolved in water to form a thermosensitive material having a phase transfer temperature of 25 to 50° C., thereby being applied to biological activity factor delivery, tissue engineering, cell culture and biological glue.