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:
Aug. 16, 1994
Filed:
Jun. 05, 1991
Applicant:
Inventors:
Dirk M Koenhen, Dedemsvaart, NL;
Aloysius H Tinnemans, Zeist, NL;
Assignee:
X-Flow B.V., Ah Almelo, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210654 ; 210490 ; 21050036 ;
Abstract
A semi-permeable composite with a porous substrate having a polymer network obtained by interfacial polymerization of a reactive polyfunctional monomer having reactive groups --NHR. (R.sub.1 is H or a C.sub.1 -C.sub.20 alkyl groups), --OH or --SH and a reactive polyfunctional material having --NCO reactive groups built from a polyalkylene oxide with terminal --OH groups and a polyisocyanate, and a process for separating components in an organic liquid medium by using said composite.