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. 18, 2016
Filed:
Sep. 08, 2015
Applicant:
Toyo Gosei Co., Ltd., Chiba, JP;
Inventor:
Satoshi Enomoto, Chiba, JP;
Assignee:
TOYO GOSEI CO., LTD., Chiba, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 303/32 (2006.01); C07C 381/12 (2006.01); G03F 7/004 (2006.01);
U.S. Cl.
CPC ...
C07C 303/32 (2013.01); C07C 381/12 (2013.01); G03F 7/0045 (2013.01);
Abstract
Provided is a sulfonium salt manufacturing method which can reduce the production of a monosulfonium salt. A method of manufacturing a sulfonium salt includes preparing a first sulfonium salt containing a sulfonium cation and a first anion, preparing a second sulfonium salt by exchanging the first anion for a halide ion, and preparing a third sulfonium salt by exchanging the halide ion for a second anion.