Vinyl ether terminated urethane resins
AssigneeAllied-Signal Inc.
InventorsStephen C. Lapin, David W. House
Life of this patent
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Abstract
Vinyl ether terminated urethane resins may be prepared by reacting the product obtained by the addition of acetylene to an organic polyol with an isocyanate-containing compound at temperatures ranging from about ambient to about 125.degree. C. The thus prepared resin may then be cured by irradiation from an electron beam, thermally or by exposure to an ultraviolet light to cure the resin and form a coating material.
Claims35
A vinyl ether terminated urethane resin having the generic formula:
- ##STR7## in which R and R' are independently selected from the group consisting of alkyl, aryl, alkaryl, aralkyl, cycloalkyl and alkyl oxide radicals and n is an integer of from 1 to 4.
A process for the preparation of a vinyl ether terminated urethane resin which comprises reacting the product obtained by the addition of acetylene to an organic polyol with an isocyanate-containing compound at reaction conditions, and recovering the resultant vinyl ether terminated urethane resin.
A polymeric material that results from curing a vinyl ether terminated resin having the generic formula:
- ##STR8## in which R and R' are independently selected from the group consisting of alkyl, aryl, alkaryl, aralkyl, cycloalkyl and alkyl oxide radicals and n is an integer of from 1 to 4 which has been cured by a curing treatment at curing conditions.
A method for obtaining a tack-free coating which comprises subjecting a vinyl ether terminated urethane resin having the generic formula:
- ##STR9## in which R and R' are independently selected from the group consisting of alkyl, aryl, alkaryl, aralkyl, cycloalkyl and alkyl oxide radicals and n is an integer of from 1 to 4 to a curing treatment at curing conditions, and recovering the resultant tack-free coating.
Dependencies are inferred from the claim text.