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:
Oct. 24, 1989
Filed:
Dec. 17, 1987
Applicant:
Inventors:
Assignee:
Allied Colloids Limited, , GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562 41 ; 562105 ;
Abstract
2-acrylamido 2-methyl propane sulphonic acid and other acrylamido-alkane sulphonic acids are made by reacting a compound such as t-butanol, t-butyl acetate or t-butyl methyl ester with a sulphonating agent in the absence of water, and then with a nitrile and water.
Benn, Gerald. (1989). Process for producing sulphonic acid (U.S. Patent No. 4876047). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4876047
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile