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:
Sep. 19, 1978
Filed:
Jul. 08, 1977
Applicant:
Inventors:
Kanzi Katsuragawa, Shin-nanyo, JP;
Tatsuo Hattori, Shin-nanyo, JP;
Keiichi Kihara, Shin-nanyo, JP;
Hanzo Tamabayashi, Shin-nanyo, JP;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2605 / ;
Abstract
Ammonium p-styrenesulfonate is produced in a process which comprises reacting an amine having more than 7 carbon atoms and a mineral acid with an alkali metal p-styrenesulfonate in an aqueous media to produce an amine salt of p-styrenesulfonic acid and then reacting ammonia with said amine salt.