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:
Jun. 06, 1989
Filed:
May. 02, 1988
Applicant:
Inventor:
Johan G Bitter, Amsterdam, NL;
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B05D / ; B05D / ; B01D / ;
U.S. Cl.
CPC ...
427244 ; 21050025 ; 21050026 ; 21050027 ; 21050034 ; 427387 ; 4273885 ; 4273935 ;
Abstract
A supported membrane comprising a non-woven monofilament support layer wherein dense membranes with a maximum width of 5000 .mu.m are surrounded by filaments. The invention further relates to a process for the preparation of said supported membranes.