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:
Sep. 18, 2012
Filed:
Dec. 31, 2009
Applicants:
Ming-yu Huang, Taipei, TW;
Jen-chun Chang, Taipei, TW;
Jann-chen Lin, Taipei, TW;
Kuen-hai Lin, Taipei, TW;
Jung-chung Wu, Taipei, TW;
Inventors:
Ming-Yu Huang, Taipei, TW;
Jen-Chun Chang, Taipei, TW;
Jann-Chen Lin, Taipei, TW;
Kuen-Hai Lin, Taipei, TW;
Jung-Chung Wu, Taipei, TW;
Assignee:
Chinese Petroleum Corp., Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 41/42 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention fabricates diethylene-glycol tert-butyl ether (DEGtBE) by using isobutylene and diethylene glycol (DEG) coordinated with an acidic cation exchanged resin as catalyst. Through two stages of vacuum distillations, highly selective and pure DEGtBE is produced. Moreover, a byproduct of diethylene-glycol di-tert-butyl ether (DEGDtBE) can be recycled.