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:
May. 15, 1990
Filed:
Jan. 10, 1989
Applicant:
Inventors:
Alexandre Rojey, Garches, FR;
Andre Deschamps, Noisy Le Roi, FR;
Alain Grehier, Paris, FR;
Eric Robert, Rueil-Malmaison, FR;
Assignee:
Institut Francais Du Petrole, Rueil-Malmaison, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ;
U.S. Cl.
CPC ...
155 16 ; 55 68 ; 55 75 ; 55158 ; 55389 ; 585818 ;
Abstract
A mixture of at least two constituents A and B is submitted to selective separation across a selective membrane. The membrane comprises an active layer comprising particles of a selective solid (5) dispersed in a continuous non-porous and non-elastomeric polymer phase (4) and a porous support (6). The thickness of the active layer is less than 100 micrometers, advantageously less than 20 micrometers.