Composition of aromatic poly(allylcarbonate), styrene materials, and crosslinker containing three or more ethylenically unsaturated groups for producing polymer of high refractive index and low yellowness

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United States of America Patent

PATENT NO 4622376
SERIAL NO

06749602

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Abstract

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Pourable, polymerizable compositions comprising aromatic-containing poly(allyl carbonate)-functional material, styrenic material, and monomer having three or more allyl, methallyl, acrylyl and/or methacrylyl groups is free radically polymerized to produce polymerizates having high refractive index, high hardness, and low yellowness. The polymerizates are especially useful in the form of ophthalmic lenses.

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Patent Owner(s)

Patent OwnerAddress
PPG INDUSTRIES INCPITTSBURGH PA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Misura, Michael S Barberton, OH 14 671
Oates, Stephanie J Canal Fulton, OH 7 244
Schwarz, Richard A Akron, OH 42 698

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