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:
Oct. 03, 2017
Filed:
Nov. 18, 2016
Applicant:
Nan Ya Plastics Corporation, Taipei, TW;
Inventors:
Te-Chao Liao, Taipei, TW;
Jung-Jen Chuang, Taipei, TW;
Zhi-Ming Huang, Taipei, TW;
Shun-Chi Chen, Taipei, TW;
Tzu-Chiang Lin, Taipei, TW;
Assignee:
NAN YA PLASTICS CORPORATION, Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 253/18 (2006.01);
U.S. Cl.
CPC ...
C07C 253/18 (2013.01);
Abstract
A method for preparing N,N'-bis(2-cyanoethyl)-1,2-ethylenediamine involves using strongly acidic cation exchange resin as a catalyst for synthesis, and is advantageous for not only eliminating the need of distillation for purification and thereby reducing reaction time, but also improving the yield of N,N′-bis(2-cyanoethyl)-1,2-ethylenediamine to 97.70-98.08%; and the method benefits simplified process and reduced costs and helps to save water significantly, thereby minimizing environmental pollution.