Process for the preparation of polyurethane powders

Details Process for the preparation of polyurethane powders Process for the preparation of polyurethane powders

C - Chemistry, Metallurgy

08

G

402/132

C08G 18/00 (2006.01) C08G 18/08 (2006.01) C08G 18/10 (2006.01)

Patent

CA 2023632

Mo3444 LeA 27,120 A PROCESS FOR THE PREPARATION OF POLYURETHANE POWDERS ABSTRACT OF THE DISCLOSURE The present invention is directed to an improved process for the direct preparation of polyurethane powders in a finely divided form by the reaction of polyisocyanates and isocyanate reactive compounds in a carrier phase, using interface active compounds, the improvement wherein the interface active compound used consists of at least one polymer of a urethane of (i) a long chain alkyl isocyanate and (ii) a hydroxyalkyl- acrylic or -methacrylic acid ester . Mo3444

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