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. 07, 2014
Filed:
Mar. 08, 2010
Applicants:
Zongming Yi, Changde, CN;
Yi Liu, Foshan, CN;
Inventors:
Zongming Yi, Changde, CN;
Yi Liu, Foshan, CN;
Assignee:
Hunan Astar Biotechnology Ltd., Changde, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 233/54 (2006.01); C07C 309/04 (2006.01); B23K 35/22 (2006.01); C07C 309/06 (2006.01); B23K 35/362 (2006.01); C07C 309/08 (2006.01); B23K 35/36 (2006.01); B23K 35/24 (2006.01); C07C 309/05 (2006.01);
U.S. Cl.
CPC ...
C07C 309/04 (2013.01); B23K 35/22 (2013.01); C07C 309/06 (2013.01); B23K 35/362 (2013.01); C07C 309/08 (2013.01); B23K 35/36 (2013.01); B23K 35/24 (2013.01); C07C 309/05 (2013.01);
Abstract
A non-halogen active agent for a flux is a sulfonate formed by a sulfonic acid reacting with an organic base. The sulfonic acid can be an alkyl sulfonic acid, alkyl disulfonic acid, hydroxyl sulfonic acid or halogenated sulfonic acid. The organic base can be an organic amine, carbamidine, imidazole, phosphorus. The non-halogen active agent for a flux has the advantage of high activity and low corrosion.