Polyol(allyl carbonate) compositions and polymerizates...

Details Polyol(allyl carbonate) compositions and polymerizates... Polyol(allyl carbonate) compositions and polymerizates...

C - Chemistry, Metallurgy

08

F

402/173, 400/560

C08F 18/24 (2006.01) C08F 263/06 (2006.01)

Patent

CA 1244593

ABSTRACT OF THE DISCLOSURE Polyol (allyl carbonate), e.g., diethylene glycol bis(allyl carbonate), are polymerized in solution, i.e., in an organic solvent, until about 20 to 50 percent of the allylic carbon-carbon linkages are consumed. The solvent is then removed yielding a product that is gel-free, syrupy viscous liquid of unpolymerized monomer and polymer. This liquid polymer can be polymerized to a hard, transparent material with less shrinkage. Also described is the addition of mono- or polyfunctional acrylates to the liquid polymer to produce a polymerizable mixture that can be cured quickly with the addition of a free-radical initiator.

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