Polyol(allyl carbonate) compositions and polymerizates prepared therefrom

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United States of America Patent

PATENT NO 5017666
SERIAL NO

07163227

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Abstract

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Polyol (allyl carbonate), e.g., diethylene glycol bis(allyl carbonate), are polymerized in solution, i.e., in an organic solvent, until from about 20 to 50 percent of the allylic carbon-carbon linkages are consumed. The solvent is then removed yielding a product that is a 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 product a polymerizable mixture that can be cured quickly with the addition of a free-radical initiator.

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Patent Owner(s)

Patent OwnerAddress
PPG INDUSTRIES INCPENNSYLVANIA USA PENNSYLVANIA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Crano, John C Akron, OH 16 442
Haynes, Ronald L Barberton, OH 7 302

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