Interpenetrating dual cure resin compositions

Details Interpenetrating dual cure resin compositions Interpenetrating dual cure resin compositions

C - Chemistry, Metallurgy

09

D

400/104, 402/123

C09D 175/04 (2006.01) C08G 18/62 (2006.01) C08G 18/63 (2006.01)

Patent

CA 1122742

INTERPENETRATING DUAL CURE RESIN COMPOSITIONS ABSTRACT OF THE INVENTION Curable resin compositions are prepared containing a radiation-sensitive reactive diluent and a saturated polyol. Curing is accomplished by mixing the reactive diluent and the polyol with a polyisocyanate, followed by exposure of the re- sultant composition to radiation to polymerize the reactive diluent and then, by thermal curing, to form the hydroxy- isocyanate (urethane) linkage. The fully cured resin compos- ition is described as interpenetrated or one in which there is no cross-linking between the reactive diluent and urethane linked co-polymer. the interpenetrated resin compositions form tough and hard coatings on various substrates.

293570

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