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:
Apr. 16, 1991
Filed:
Nov. 08, 1989
Applicant:
Inventors:
Makoto Ishizuka, Kawaguchi, JP;
Takashi Wakasugi, Iwaki both of, JP;
Assignee:
Kureha Chemical Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
568466 ; 568449 ; 568458 ; 568488 ; 568490 ; 568495 ;
Abstract
A method for preparing a monochloroacetaldehyde trimer in a high yield is here disclosed which comprises the steps of dissolving, in an organic solvent, a solution containing monochloroacetaldehyde as the main component, and then trimerizing monochloroacetaldehyde in the presence of sulfuric acid. The thus prepared monochloroacetaldehyde trimer can be heated at 120.degree. C. under atmospheric pressure to obtain pure monochloroacetaldehyde.
Ishizuka, Makoto. (1991). Method for preparing monochloroacetaldehyde trimer (U.S. Patent No. 5008462). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5008462
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile