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:
Jul. 08, 2014
Filed:
Jul. 22, 2011
Orhan Ozturk, Toyonaka, JP;
Orhan Ozturk, Toyonaka, JP;
Sumitomo Chemical Company, Limited, Tokyo, JP;
Abstract
An aminoalkylthiosulfuric acid compound represented by formula (1): is produced. In step (A1), a hydrochloride of a chloroalkylamine compound represented by formula (2): is reacted with an alkali metal salt of thiosulfuric acid in the presence of 2 to 6 parts by weight of water with respect to 1 part by weight of the hydrochloride between 50° C. and 100° C. Rand Reach represents a hydrogen atom and the like, and n represents an integer of 2 to 9. In step (B1), a mixture of a solid containing the aminoalkylthiosulfuric acid compound and a liquid containing an alkali metal chloride is obtained by adjusting the temperature of the mixture of step (A1) to between −15° C. and 50° C. In step (C1), the aminoalkylthiosulfuric acid compound is obtained as solid by separating the solid containing the aminoalkylthiosulfuric acid compound and the liquid containing the alkali metal chloride from the mixture of (B1).