Diethylene glycol bis(allyl carbonate) compositions containing crosslinkable copolymers
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United States of America Patent
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Aug 12, 1980
Grant Date -
N/A
app pub date -
Aug 3, 1979
filing date -
Aug 3, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
When an acrylic monomer such as methyl methacrylate is copolymerized with an allyl monomer such as allyl methacrylate whereby the resulting copolymer has active pendant allyl groups, this copolymer is then crosslinked with diethylene glycol bis (allyl carbonate) monomer (called ADC). The resulting product has considerable reduction in shrinkage while maintaining optical clarity and is useful as lenses.
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