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. 08, 1988
Filed:
Nov. 27, 1984
Applicant:
Inventors:
Menahem A Kraus, St. Louis, MO (US);
Milton K Murphy, St. Charles, MO (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55 16 ; 210640 ; 21050027 ;
Abstract
Processes utilizing polyphosphazene membranes for separating polar fluids from non-polar fluids are disclosed. Fluid separation membranes comprised of polyphosphazenes having halogenated side groups are disclosed as exhibiting effective preferential selectivity and permeabilities for polar fluids relative to non-polar fluids contained in feedstream mixtures. The polyphosphazenes are in general rubbery polymers having attractive fluids transport properties and improved thermal and chemical stability.