Radiation curable compositions comprising an unsaturated polyest

Details Radiation curable compositions comprising an unsaturated polyest Radiation curable compositions comprising an unsaturated polyest

1997-08-13

2000-02-29

Berman, Susan W.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

522 40, 522 42, 522 43, 522 44, 522 46, 522 64, 522107, 522181, C08F 250, C08L 6706, C08L 6707, G02B 602

Patent

active

06030703&

ABSTRACT:
Composition suitable for free radical, radiation curable coating comprising at least one polyester having unsaturated backbone and at least one compound having two to six propenyl ether groups, and optionally, a free radical photoinitiator. The equivalent ratio of propenyl ether groups to maleimide, maleate and/or fumarate groups in the polyester is preferably about 5:1 to about 1:5.
The process for curing the composition includes exposing it to ionizing radiation and/or ultraviolet light. The resultant cured coatings and coated articles are similar in performance to their vinyl ether analogues, but the propenyl ethers are easier to prepare than the vinyl ether analogues.

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