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:
Apr. 10, 2001
Filed:
Jun. 25, 1999
Ulrich Baurmeister, Wuppertal, DE;
Rudolf Wollbeck, Erlenbach, DE;
Akzo Nobel NV, Postbus, NL;
Abstract
An apparatus and process for substance-specific treatment of fluids, whereby the apparatus comprises a housing with a distribution space and a collection space, between which is arranged a structure of adjacent flat first and second layers containing first and second hollow-fiber membranes, respectively, and a matrix on which groups acting in a substance-specific manner for fluid treatment are immobilized, whereby the filling ratio &egr; of the housing determined by the hollow-fiber membranes and the matrix is greater than 0.55. The first hollow-fiber membranes are open in the direction of the distribution space and closed in the direction of the collection space, and the second hollow-fiber membranes are open in the direction of the collection space and closed in the direction of the distribution space, and the hollow fiber membranes are embedded at least at their open end in the sealing compounds. The layers contained in the apparatus are substantially of equal thickness, and each first layer is, on at least one of its sides, adjacent to a second layer and each second layer is, on at least one of its sides, adjacent to a first layer.