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:
Nov. 26, 2019
Filed:
Mar. 10, 2015
Bl Technologies, Inc., Minnetonka, MN (US);
John H. Barber, Guelph, CA;
Russell James MacDonald, Burlington, MA (US);
Yongchang Zheng, Westborough, MA (US);
Kai Zhang, Singapore, SG;
Yonghong Zhao, Singapore, SG;
BL TECHNOLOGIES, INC., Minnetonka, MN (US);
Abstract
An ion-exchange membrane is disclosed here including ion-permeable layers impregnated with an ion-exchange material and arranged in an order from one face of the membrane to the opposite face of the membrane such that opposing layers in the supporting membrane substrate provide sufficiently identical physical properties to substantially avoid irregular expansion when in a salt solution. The ion-permeable layers including at least one non-woven layer and at least one reinforcing layer.