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:
Feb. 25, 1992
Filed:
Dec. 05, 1990
Applicant:
Inventors:
Okan M Ekiner, Wilmington, DE (US);
Richard A Hayes, Hockessin, DE (US);
Philip Manos, Wilmington, DE (US);
Assignees:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
L'Air Liquide, S.A., Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427245 ; 427243 ; 4273935 ;
Abstract
A process is disclosed for sealing gas separation membranes through treatment with two monomeric materials which condense with each other to form a polymer such as a diamine and a di- or tri- acyl chloride.