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. 25, 1979
Filed:
Feb. 22, 1977
Yoshiya Kametani, Yokohama, JP;
Yasuo Iino, Yokohama, JP;
Nitto Chemical Industry Co. Ltd., Tokyo, JP;
Abstract
An unsaturated quaternary ammonium salt represented by the formula ##STR1## WHEREIN R.sub.1 is hydrogen atom or methyl group and R.sub.2 and R.sub.3 each are methyl or ethyl group, is obtained in high-quality crystalline form in a good yield by reacting an unsaturated tertiary amine repesented by the formula ##STR2## wherein R.sub.1, R.sub.2 and R.sub.3 have the same meanings as defined above, with methyl chloride in the presence of acetonitrile used as reaction solvent. The unsaturated quaternary ammonium salt thus obtained is a substance useful as starting material in the production of flocculants, antistatics, soil conditioners, etc.