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. 20, 2018
Filed:
Nov. 07, 2014
Covestro Deutschland Ag, Leverkusen, DE;
Stefan Lindner, Remscheid, DE;
Wolfgang Friederichs, Köln, DE;
Meike Niesten, Köln, DE;
Reinhard Strey, Dormagen, DE;
Thomas Sottmann, Stuttgart, DE;
Niels Becker, Köln, DE;
Agnes Chalbi, Köln, DE;
Diana Engelen, Leverkusen, DE;
Paul Heinz, Köln, DE;
Covestro Deutschland AG, Leverkusen, DE;
Abstract
A polyurethane foam, polyisocyanurate foam or polyurea foam is obtainable from the reaction of a mixture comprising A) a compound reactive towards isocyanate ('NCO-reactive compound'); B) a blowing agent selected from the group comprising linear, branched or cyclic C1 to C6 hydrocarbons, linear,branched or cyclic C1 to C6 fluorocarbons, N, O, argon and/or CO, where the blowing agent B) is present in the supercritical or near-critical state; C) a polyisocyanate; D) an amphiphilic isocyanate; and E) optionally a surfactant and F) optionally other auxiliaries and additives. The invention further relates to the production of this polyurethane foam, where the blowing agent is emulsified in the isocyanate component containing amphiphilic isocyanate.