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. 11, 1983
Filed:
Feb. 11, 1981
Applicant:
Inventors:
Assignee:
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568428 ;
Abstract
A xylene mixture containing at least one of m-xylene and o-xylene is formylated by carbon monoxide in the presence of hydrogen fluoride and boron trifluoride at a molar ratio of boron trifluoride to sum total of m-xylene and o-xylene in the xylene mixture of not more than 1.5 to selectively and correspondingly produce at least one of 2,4-dimethylbenzaldehyde and 3,4-dimethylbenzaldehyde.
Fujiyama, Susumu. (1983). Process for formylating xylene mixture (U.S. Patent No. 4368336). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4368336
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile