Aminoplast dispersions and polyurethanes prepared therefrom

Details Aminoplast dispersions and polyurethanes prepared therefrom Aminoplast dispersions and polyurethanes prepared therefrom

C - Chemistry, Metallurgy

08

L

400/107, 400/734

C08L 61/20 (2006.01) C08G 18/54 (2006.01)

Patent

CA 1059682

ABSTRACT OF THE DISCLOSURE A process which comprises preparing aminoplast condenses by the oligocondensation or polycondensation of substances which are capable of aminoplast formation, the improvement wherein said oligocondensation or said polycondensation is conducted in an organic polyhydroxyl compound having a molecular weight of from about 250 to about 14,000, whereby a storage stable aminoplast dispersion having a solids content of from about 5 to about 45% by weight is produced. The resulting dispersions, which are stable indefinitely in storage, are valuable and novel starting compounds for the production of polyurethanes by the isocyanate polyaddition process.

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