Method of curing B-stage polyurethanes

Details Method of curing B-stage polyurethanes Method of curing B-stage polyurethanes

1972-11-14

1978-04-04

Tillman, Murray

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

96115P, 20415914, 260859R, 427 36, 427 38, 427 44, 427 54, 428423, 428913, C08F 800

Patent

active

040826341

ABSTRACT:
B-stage polyurethanes comprising the reaction product of at least one hydroxyl-containing ester having a terminal acrylyl or alpha-substituted acrylyl group, an organic diisocyanate and a polyester polyol, are cured by ionizing radiation or actinic light to provide hard, thermoset polyurethanes. The composition may include one or more copolymerizable ethylenic monomers. The method is useful to provide films, coatings and impregnated materials of highly desirable properties.

REFERENCES:
patent: 2921006 (1960-01-01), Schmitz et al.
patent: 3495987 (1970-02-01), Moore
patent: 3509234 (1970-04-01), Burlant et al.
patent: 3651021 (1972-03-01), Kincaid et al.
patent: 3700643 (1972-11-01), Smith et al.

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