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:
Dec. 09, 2003
Filed:
Feb. 07, 2001
Applicant:
Inventors:
Assignee:
Adisseo Ireland Limited, Dublin, IE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ; C07C 6/952 ;
U.S. Cl.
CPC ...
C07C / ; C07C / ; C07C / ; C07C 6/952 ;
Abstract
A process, for the preparation of an ester of 2-hydroxy-4-methylthiobutyric acid which is substantially in the monomeric form, which process, being capable of industrial application and which comprises reacting 2-hydroxy-4-methylthiobutyric acid with an alcohol in the presence of water and an acid catalyst at a temperature of from 30 to 150° C. wherein the acid is the direct product of the hydrolysis of 2-hydroxy-4-methylthiobutyronitrile.