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U.S. Department of Energy
Office of Scientific and Technical Information

Radiation-curable prepolymer

Patent ·
OSTI ID:5772697
The object of this invention is to provide an isocyanate-curable prepolymer which will adhere to a metal substrate, has good curability and good physical and chemical properties. The product is prepared by the reaction of an organic diisocyanate with a hydroxyl-containing unsaturated monomer and a polyester polyol, preferably containing 2 to 4 hydroxyl groups per molecule. (The polyol should have an average mol wt of 800 to 6000 and a hydroxyl equiv wt of 200 to 3000, and should contain a dimer acid residue derived from 9 to 70%, based on the total wt of the starting materials.
Assignee:
Dainippon Ink and Chemicals, Inc.
Patent Number(s):
US 4164486
OSTI ID:
5772697
Country of Publication:
United States
Language:
English