Bayer Aktiengesellschaft

Werner Drouve

Gerhard Grogler

Richard Kopp

Manfred Bock

Heinrich Hess

Peter Hohlein

Holger Casselmann

Wolfhart Wieczorrek

The present invention relates to a heat curable, one-component polyurethane reactive compositions containing

Heat curable, one-component polyurethane reactive compositions

Suspensions of solid polyisocyanates inactivated on the surface of adduct formation in organic, isocyanate reactive compounds as continuous phase, which suspensions are stable in storage at room temperature and heat curable and optionally contain auxiliary agents and additives, the continuous phase containing at least 10% by weight of ether group- and ester group-containing polyhydroxyl compounds having an (average) hydroxyl functionality of from 0.5 to 3 and an (average) hydroxyl number of from 15 to 150 constituting esterification products of (i) polyether polyols having an (average) hydroxyl functionality of from 3 to 8 and an (average) hydroxyl number of from 200 to 1000 with (ii) from 40 to 90 equivalents percent of inorganic monocarboxylic acids and the use of these suspensions for the production of coatings, adhesives or sealing compounds, in particular as underseal and doorseal compounds for motor vehicles.

Polyisocyanate suspensions in isocyanate reactive compounds and their use

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Leverkusen, Germany

Werner Drouve