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. 22, 1976
Filed:
Mar. 15, 1974
Applicant:
Inventors:
Assignee:
Asahi Glass Co., Ltd., Tokyo, JA;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2605 / ; 252435 ; 252437 ; 2605 / ;
Abstract
Unsaturated carboxylic acids are prepared by reacting the corresponding unsaturated aldehyde with molecular oxygen in the presence of a catalyst of (a) molybdenum, (b) phosphorus, (c) antimony, (d) at least one element selected from the group consisting of tungsten, barium, chromium, lead, niobium, tantalum, tin, nickel, iron and zirconium, and (e) oxygen, and optionally (f) at least one element selected from the group consisting of strontium, titanium, germanium, cerium, and silver.