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US 4,400,497 AGranted
Storage stable, heat curable mixtures of polyisocyanate and polyol and process for their manufacture and use
AssigneeBASF SE
InventorsRainer Blum, August Lehner, Hans-Uwe Schenck
Life of this patent
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Abstract
The invention relates to mixtures comprising of (a) a polyisocyanate in the form of discrete particles having diameters of 0.1 to 150 microns which are deactivated at their surface such that from 0.5 to 20 equivalent percent of the total isocyanate groups present are deactivated; and (b) a polyol. These mixtures are useful as coatings and adhesives as well as gasket materials and are particularly useful as undercoating materials for automotive vehicles.
Claims9
A mixture comprising
- (a) a polyisocyanate in the form of discrete particles having diameters of 0.1 micron to 150 microns which are deactivated at their surface such that from 0.5 to 20 equivalent percent of the total isocyanate groups present are deactivated;
- and
- (b) a polyol.
Dependencies are inferred from the claim text.