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:
Nov. 19, 1996
Filed:
Oct. 27, 1993
Peter Konstantin, Neunkirchen, DE;
Michael Rinck, St. Ingbert-Hassel, DE;
Fresenius AG, Bad Homburg, DE;
Abstract
A process for the immobilization of a linear polymer, in particular a polyionenes, which is soluble in an aqueous solvent, on a chemically inert carrier material and a matrix having an antimicrobial effect are provided, which are suitable for, in particularly intracorporeally applied, medical appliances and in the form of microporous membranes as filters for water purification or, in the form of beads, as a surface disinfectant. The process is characterized in that the two terminal reactive groups of the linear polymer are reacted with an excess of an alpha, omega-bifunctional compound, the reaction product obtained is dissolved in a hydrophilic solvent and applied at least once to the carrier material and then cross-linked with a cross-linking agent dissolved in a hydrophobic solvent which is chemically inert to the cross-linking agent and the carrier material.