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:
Jun. 29, 1999
Filed:
Apr. 28, 1998
Applicant:
Inventors:
Shien Chang Chen, Taipei, TW;
Cheng Chang Chu, Kaohsiung, TW;
Fu Shen Lin, Kaohsiung, TW;
June Yen Chou, Kaohsiung, TW;
Ming Hui Chu, Kaohsiung, TW;
Assignee:
Dairen Chemical Corporation, Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
549509 ; 549356 ;
Abstract
This invention is directed to a process for producing cyclic ethers by liquid phase reaction, which comprises using a crystalline aluminosilicate zeolite as the catalyst, and subjecting an alkanediol to cyclodehydration at a temperature less than the boiling point of the alkanediol to obtain the corresponding cyclic ether.