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:
Jul. 06, 2021
Filed:
Sep. 18, 2019
Applicant:
National Tsing Hua University, Hsinchu, TW;
Inventors:
Chien-Tien Chen, Hsinchu, TW;
Yi-Ya Liao, Hsinchu, TW;
Assignee:
NATIONAL TSING HUA UNIVERSITY, Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 8/14 (2006.01);
U.S. Cl.
CPC ...
C08F 8/14 (2013.01);
Abstract
An esterification method of a copolymer is disclosed. The esterification method includes the steps of: (A) mixing a copolymer having a carboxylic acid group, an alcohol or an aminoalcohol compound, a catalyst of formula (I), and a first solvent to obtain a first mixture; (B) reacting the first mixture at a predetermined temperature to obtain a second mixture; and (C) adding the second mixture into a second solvent; wherein the catalyst of formula (I) is shown below:[M(O)]X  (I)wherein M, X, a, b, in, and n are defined in the specification.