Radiation curable oligomers based on tris(2-hydroxyethyl) isocya

Details Radiation curable oligomers based on tris(2-hydroxyethyl) isocya Radiation curable oligomers based on tris(2-hydroxyethyl) isocya

1978-02-09

1980-01-15

Danison, Walter C.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

428522, 526261, 544222, C08F 250, C08F 400

Patent

active

041837967

ABSTRACT:
A radiation curable oligomer which cures to provide a combination of improved elongation and tensile strength is constituted by a selected hydroxy functional polyester having its active hydrogen atoms end-capped by reaction with ethylenically unsaturated monoisocyanate. This polyester is the reaction product of one mole of tris (2-hydroxyethyl) isocyanurate with three moles of saturated dicarboxylic acid and three moles of diol, these proportions being variable within the limits of .+-.20%, the polyester reaction product having an acid value of less than 20, preferably less than 5, and providing hydroxyl-terminated branches having an average length corresponding to a calculated molecular weight of 100-1500.

REFERENCES:
patent: 3345429 (1967-10-01), Sattler
patent: 3509234 (1970-04-01), Burlant et al.
patent: 3658801 (1972-04-01), Berry et al.
patent: 3783150 (1974-01-01), Koyler et al.
patent: 3989609 (1976-11-01), Brack

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