Radiation curable acrylated polyurethane

Details Radiation curable acrylated polyurethane Radiation curable acrylated polyurethane

C - Chemistry, Metallurgy

08

G

402/144

C08G 18/67 (2006.01) C08G 18/40 (2006.01)

Patent

CA 1123548

11,859 RADIATION CURABLE ACRYLATED POLYURETHANE ABSTRACT Radiation curable acrylated polyurethane is produced by (a) producing an isocyanate-terminated intermediate by coreacting an organic diisocyanate with a combination of organic tri/tetraol and organic diol, said combination being chosen from polyester tri/tetraol- polyether diol and polyether tri/tetraol-polyester diol combinations; (b) reacting the isocyanate-terminated intermediate with an hydroxyacrylate such as 2-hydroxyethyl acrylate. Unexpectedly, the oligomer has desirably low viscosity, yet cures upon exposure to radiation to a coating having good physical properties. S P E C I F I C A T I O N

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