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. 25, 1989
Filed:
May. 02, 1988
Applicant:
Inventors:
Russell B Hodgdon, Sudbury, MA (US);
Samuel S Alexander, Concord, MA (US);
Assignee:
Ionics, Incorporated, Watertown, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G25B / ;
U.S. Cl.
CPC ...
204296 ; 427 58 ; 427245 ; 521 25 ; 521 27 ;
Abstract
Improved bipolar membranes comprised of two laminates, one a long term base stable thermoset anion exchange membrane and the other a strongly solvent bonded (solvent cast) thermoplastic water insoluble cation exchange membrane. The membranes have a useful level of acid and base efficiencies at low water splitting voltages, along with high current densities.