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:
Mar. 13, 1979
Filed:
Mar. 23, 1977
Applicant:
Inventors:
Ming N Sheng, Cherry Hill, NJ (US);
Jar-lin Kao, Cherry Hill, NJ (US);
Assignee:
Atlantic Richfield Company, Los Angeles, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
562598 ;
Abstract
A process for the preparation of acrylic acid or methacrylic acid by the ruthenium and/or osmium catalyzed conversion of peroxide (peroxy) intermediate compounds, derived from the autoxidation of acrolein or methacrolein, to the corresponding .alpha.,.beta.-unsaturated carboxylic acid, particularly the conversion of permethacrylic acid and methacrolein monopermethacrylate to methacrylic acid.