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:
Jan. 01, 1991
Filed:
Nov. 28, 1986
Applicant:
Inventor:
Bernard Besson, Villeurbanne, FR;
Assignee:
Rhone Poulenc Specialities Chimiques, Courbevoie, FR;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
260413 ; 2604 / ; 558353 ; 560232 ; 562406 ; 562497 ; 562520 ;
Abstract
A process for preparing alpha-hydroxycarboxylic acids. An organic halide is reacted with carbon monoxide and a hydrogen donor compound, in the presence of a carbonylation catalyst and an inorganic base, at a temperature of at least 90.degree. C.