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. 18, 1990
Filed:
Apr. 28, 1987
Applicant:
Inventors:
Norbert Bluthe, Villeurbanne, FR;
Robert Perron, Charly, FR;
Assignee:
Rhone-Poulenc Chimie, Courbevoie, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568428 ; 546298 ; 568429 ; 568451 ; 568454 ;
Abstract
Aromatic aldehydes are more efficiently produced by reacting carbon monoxide/hydrogen admixture with an aromatic halide in the presence of a noble metal-based catalyst, a tertiary nitrogenous based and, if necessary, a noble metal complexing agent, e.g., a phosphine or phosphite, wherein the CO/H.sub.2 ratio is less than 1.
Bluthe, Norbert. (1990). Preparation of aromatic aldehydes (U.S. Patent No. 4978801). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4978801
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile