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. 18, 2023
Filed:
Aug. 31, 2020
Applicant:
Nan Ya Plastics Corporation, Taipei, TW;
Inventors:
Te-Chao Liao, Taipei, TW;
Sen-Huang Hsu, Taipei, TW;
Chung-Chi Su, Taipei, TW;
Chuan Chou, Taipei, TW;
Jui-Jung Lin, Taipei, TW;
Assignee:
NAN YA PLASTICS CORPORATION, Taipei, TW;
Primary Examiner:
Int. Cl.
CPC ...
C08L 79/02 (2006.01); C08G 59/50 (2006.01); C08G 59/42 (2006.01); C08L 71/08 (2006.01); C08G 65/34 (2006.01); C08G 65/00 (2006.01); C08L 63/00 (2006.01);
U.S. Cl.
CPC ...
C08G 59/5013 (2013.01); C08G 59/4276 (2013.01); C08G 65/002 (2013.01); C08G 65/34 (2013.01); C08L 71/08 (2013.01);
Abstract
A curing agent and method for producing the same are provided, the method includes: esterification reaction: reacting a polyhydric alcohol with a polybasic acid anhydride to obtain an ester-based emulsifier (A); chain extension reaction: reacting an ester-based emulsifier (A) with a bifunctional epoxy resin to obtain a polymer intermediate (B); and reacting the polymer intermediate (B) with a polyamine compound to obtain a curing agent (C).