Verfahren zur Herstellung von Polyurethane-Hartschaumstoffen

Translated title of the contribution: Process for producing rigid polyurethane foams.

Z. Tomovic (Inventor), Olaf Jacobmeier (Inventor), Rainer Hensiek (Inventor), Gunnar Kampf (Inventor)

Research output: PatentPatent publication

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Abstract

The invention relates to a method for producing rigid polyurethane foams, wherein a mixture of one or more highly functional polyether alcohols having functionalities of (3.5) to (5.5) and a hydroxyl value of (350) to (550) mg KOH/g, one or more polyether alcohols based on aliphatic and/or aromatic amines having functionalities of (3) to (4) and a hydroxyl value of (150) to (800) mg KOH/g, a fatty acid ester containing OH groups, and optionally one or more low-molecular-weight chain exten­ ders and/or cross-linking agents having functionalities of (2) to (3) and a molecular weight Mw < (400) g/mol is used as a polyol component. The obtained rigid polyurethane foams are characterized by good surface properties.
Translated title of the contributionProcess for producing rigid polyurethane foams.
Original languageGerman
Patent numberWO2010/106067Al
Filing date16/03/10
Publication statusPublished - 23 Sep 2010

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