Polyurethane compositions with improved storage stability

Details Polyurethane compositions with improved storage stability Polyurethane compositions with improved storage stability

C - Chemistry, Metallurgy

08

G

402/147

C08G 18/80 (2006.01) C08G 18/08 (2006.01) C08G 18/32 (2006.01) C08G 18/38 (2006.01) C08G 18/65 (2006.01)

Patent

CA 1297622

Mo-2739 PC-151 POLYURETHANE COMPOSITIONS WITH IMPROVED STORAGE STABILITY ABSTRACT OF THE DISCLOSURE The present invention is directed to a process for improving the storage stability of a composition containing a) a blocked polyisocyanate component prepared by blocking the isocyanate groups of an organic polyiso- cyanate with a blocking agent comprising a di- C1-C12-alkyl and/or -alkoxyalkyl malonate and b) a high molecular weight component comprising a compound containing at least two isocyanate-reactive hydrogens, which comprises incorporating a stabilizing amount of a low molecular weight compound having at least 2 hydroxyl groups into the composition by adding said compound to component (a), component (b) or to the mixture of components (a) and (b). The present invention is also directed to the storage stable composition produced in accordance with the above process. Mo-2739

539359

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