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:
Dec. 18, 1984
Filed:
Jun. 30, 1982
Applicant:
Inventor:
Anthony Zampini, St. Louis, MO (US);
Assignee:
Monsanto Company, St. Louis, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55158 ; 2642091 ; 428398 ;
Abstract
Asymmetric polymeric gas separation membranes comprise amorphous aryl substituted arylene oxide polymer. Such amorphous polymer is capable of forming hollow fiber membranes by wet spinning procedures utilizing coagulation baths and bore injection fluids comprising water. Desirable aryl substituents include halogens, nitro, lower alkyls and lower acyls.