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:
May. 29, 2001
Filed:
Jun. 28, 2000
Applicant:
Inventors:
Michael William Marshall Tuck, London, GB;
Michael Anthony Wood, Middlesbrough, GB;
Andrew George Hiles, Chesham Bois, GB;
Assignee:
BASF Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
C07D / ;
Abstract
A process for the production of at least one C,compound selected from 1,4-butanediol, gamma-butyrolactone and tetrahydrofuran, in which a solution of maleic anhydride in a high boiling ester is esterified with a C,to C,alcohol to form the corresponding maleate ester which is hydrogenated to form the at least one C,compound. The specified high boiling ester has a boiling point which is about 30 degrees C. higher than that of the di-(C,-C,alkyl)maleate.