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:
May. 26, 2015
Filed:
Dec. 13, 2012
Chung-shan Institute of Science and Technology, Armaments Bureau, M.n.d, Taoyuan County, TW;
Wen-Chiung Su, Taoyuan County, TW;
Ru-Jong Jeng, Taoyuan County, TW;
Tzong-Yuan Juang, Taoyuan County, TW;
Shi-Min Shau, Taoyuan County, TW;
Guan-Liang Chen, Taoyuan County, TW;
Han-Sheng Lin, Taoyuan County, TW;
CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY, ARMAMENTS BUREAU, M. N. D, Taoyuan County, TW;
Abstract
A facile synthesis of amphiphilic hyperbranched polymers consisting of poly(amic acid) and polyimide was developed via 'A+B' approach from difunctional anhydride and trifunctional hydrophilic poly(oxyalkylene)triamine. Various amphiphilic hyperbranched poly(amic acid)s (HBPAAs) with terminal amine functionalities and amic acid structures were prepared through ring-opening polyaddition at room temperature, followed by thermal imidization process for the formation of hyperbranched polyimides (HBPIs), accordingly. The resulting HBPIs were analyzed by GPC, indicating the molecule weights of 5000˜7000 g/mol with a distribution of polydispersity between 2.0 and 3.8. The amine titration for HBPIs indicated the peripheral total-amine contents to be 8.32˜18.32 mequiv/g dependent on compositions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile