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:
Apr. 16, 2019
Filed:
Jun. 07, 2017
Hunan Ovay Technology Co., Ltd, Zhuzhou, CN;
Bo Peng, Zhuzhou, CN;
Hongwei Lu, Zhuzhou, CN;
Qunhui Hu, Zhuzhou, CN;
Hui Yu, Zhuzhou, CN;
Pan He, Zhuzhou, CN;
Jin Wang, Zhuzhou, CN;
Dan Liu, Zhuzhou, CN;
Chunqing Wang, Zhuzhou, CN;
Pengjun Liu, Zhuzhou, CN;
HUNAN OVAY TECHNOLOGY CO., LTD., Zhuzhou, CN;
Abstract
The present invention provides a high-flux polyamide composite membrane, which includes a composite membrane body, wherein the composite membrane body includes a non-woven fabric, a porous supporting layer and a polyamide layer which are successively arranged; and the polyamide layer is prepared by a polyamine solution and a poly-acyl chloride solution through an interface polymerization reaction, wherein the polyamine solution contains amino acid. The amino acid adopted in the technical solution of the present invention can be used as an end-capping reagent to react with acyl chloride groups, thereby regulating a polyamide layer structure, decreasing a cross-linking degree of the polyamide layer, and opening a channel for the passing of water molecules; and moreover, the hydrophilic performance of a membrane surface can also be improved, and a water flux is increased while a high interception rate is ensured.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile