Storage stable polyurethane compositions

Details Storage stable polyurethane compositions Storage stable polyurethane compositions

C - Chemistry, Metallurgy

08

G

402/140, 400/740

C08G 18/50 (2006.01) C08G 18/10 (2006.01)

Patent

CA 1200346

STORAGE STABLE POLYURETHANE COMPOSITIONS ABSTRACT OF THE DISCLOSURE The present invention is directed to an organic polyurethane composition having a solids content of about 10 to 100 weight percent which comprises 1) isocyanate-terminated prepolymers which are prepared by reacting reaction products of the phos- genation of aniline-formaldehyde condensates containing specific ratios of isomers and homologues with poly- ether polyols containing at least two hydroxyl groups and at least one tertiary nitrogen atom and, optional- ly, an additional polyol which does not contain a ter- tiary nitrogen atom and optionally, 2) a monoisocyanate comprising a member selected from para-toluenesulfonyl isocyanate and the reaction product of 2,4- or 2,6-toluene diisocyanate or mixtures thereof with specific monoalcohols. The present invention is also directed to the coatings produced from the polyurethane compositions, optionally containing pigments.

427495

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