Radiation-curable prepolymer

Details Radiation-curable prepolymer Radiation-curable prepolymer

1978-01-03

1979-08-14

Griffin, Ronald W.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

20415916, 20415919, 260 22D, C09D 364, C09D 366, C09D 368

Patent

active

041644867

ABSTRACT:
A substantially NCO-free radiation-curable prepolymer which is the reaction product of (A) an organic diisocyanate with (B) a hydroxyl-containing unsaturated monomer and (C) a polyester polyol containing 2 to 8 hydroxyl groups per molecule, the polyester polyol (C) having a number average molecular weight of 400 to 6,000 and a hydroxyl equivalent weight of 200 to 3,000 and containing a dimer acid residue derived from 9 to 70%, based on the weight of the total weight of the starting materials, of dimer acid and an alcohol residue derived from 20 to 75%, based on the total weight of the starting materials, of an ethylene oxide or propylene oxide adduct of bisphenol A with the proportion of the oxide added being 2 to 4 moles.

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