Accession Number : ADD006183
Title : Polymeric Membranes which Contain Polyphenylquinoxalines and which are Useful as Battery Separators.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Angres,Isaac ; Duffy,James V ; Matesky,Sol J
Report Date : 19 Jun 1979
Pagination or Media Count : 6
Abstract : This invention relates to a polymeric membrane composed of a homogeneous mixture of (1) a hydrophilic resin which is (a) partially acetylated cellulose in which from about 50 to less than 100 percent of the hydroxyl groups are acetylated, (b) polyvinyl acetate, (c) hexadimethrine bromide, or mixtures thereof, and (2) a polyphenylquinoxaline with an inherent viscosity of from about 0.5 to about 2.5 dl./g as a 0.5 g in 100 ml solution in 98 percent sulfuric acid at about 30 C. These polymeric membranes are used as separators in alkaline cells such as silver-zinc cells.
Descriptors : *Patents, *Membranes, *Battery separators, *Quinoxalines, *Polymers, Polyphenylenes, Mechanical properties, Polymeric films, Chloroform, Cellulosic resins
Subject Categories : Electrochemical Energy Storage
Distribution Statement : APPROVED FOR PUBLIC RELEASE