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. 14, 2016
Filed:
Apr. 30, 2012
Meike Niesten, Köln, DE;
Sebastian Dörr, Düsseldorf, DE;
Sascha Plug, Leverkusen, DE;
Jan Schönberger, Haan, DE;
Meike Niesten, Köln, DE;
Sebastian Dörr, Düsseldorf, DE;
Sascha Plug, Leverkusen, DE;
Jan Schönberger, Haan, DE;
Covestro Deutschland AG, Leverkusen, DE;
Abstract
The invention relates to a specific composition comprising A) isocyanate-functional prepolymers obtainable by reaction of A1) aliphatic diisocyanates with A2) di- to hexa-functional polyalkylene oxides having an ethylene oxide content of 50 to 100 mol %, based on the total amount of the oxyalkylene groups present, B) an aqueous polyurethane suspension, an aqueous polyacrylate suspension or aqueous silica sols, especially for production of hydrophilic, aliphatic polyurethane foams. The invention further provides a process for producing a hydrophilic, aliphatic polyurethane foam, based on the inventive composition, a polyurethane foam obtainable by the process and a wound dressing comprising the polyurethane foam.