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:
Nov. 28, 1989
Filed:
Aug. 08, 1983
Applicant:
Inventors:
Helmut Kampfer, Cologne, DE;
Wolfgang Himmelmann, Leverkusen, DE;
Assignee:
AGFA-Gevaert Aktiengessellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
546347 ; 549 14 ; 549 40 ; 562104 ; 562107 ;
Abstract
Propane or butane sultones are prepared by the thermal decomposition of the corresponding aryl sulfoalkyl ethers wherein the alkyl part has three or four carbons between the sulfo group and the ether oxygen. When a tertiary amine is present, the final product is the corresponding sulfoalkyl quaternary salt of the tertiary amine.
Kampfer, Helmut. (1989). Process for the preparation of sulfoalkyl quaternary salts and for the (U.S. Patent No. 4883880). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4883880
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile