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. 04, 2017
Filed:
Nov. 30, 2015
Changhai Xu, Wuxi, CN;
Chang Sun, Wuxi, CN;
Jinmei Du, Wuxi, CN;
Shuangshuang Cui, Wuxi, CN;
Jingjing Zhang, Wuxi, CN;
Jiao Yu, Wuxi, CN;
Zhiyong Huang, Wuxi, CN;
Wenjuan Tang, Wuxi, CN;
Yan Zhang, Wuxi, CN;
Wenhua Chen, Wuxi, CN;
Changhai Xu, Wuxi, CN;
Chang Sun, Wuxi, CN;
Jinmei Du, Wuxi, CN;
Shuangshuang Cui, Wuxi, CN;
Jingjing Zhang, Wuxi, CN;
Jiao Yu, Wuxi, CN;
Zhiyong Huang, Wuxi, CN;
Wenjuan Tang, Wuxi, CN;
Yan Zhang, Wuxi, CN;
Wenhua Chen, Wuxi, CN;
Jiangnan University, Wuxi, Jiangsu, CN;
Abstract
The present invention provides a method for synthesizing cationic bleach activators via a single-bath reaction, comprising steps of: separately dissolving 4-chloromethylbenoyl chloride and lactam in its respective solvent, adding an acid-binding agent to the lactam solution, next adding dropwisely 4-chloromethylbenoyl chloride solution into the lactam/acid binding-agent solution, and finally adding tertiary amine to the solution above to make a reaction solution, which is further treated with mixing and refluxing. The washed and dried final product is TBLC cationic bleach activator. The method of the present invention greatly simplifies the synthesizing process and lowers the stringency of reaction conditions for preparing cationic bleach activators (TBLC). At the same time, the present method produces TBLC cationic bleach activators with high yields, making it a suitable option for industrial production of these bleach activators.