Polymerizable polyol(allyl carbonate) composition
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United States of America Patent
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Jul 17, 2001
Grant Date -
N/A
app pub date -
Jun 19, 2000
filing date -
Jan 30, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Describes a polymerizable organic composition comprising a polyol(allyl carbonate), e.g., diethylene glycol bis(allyl carbonate), and from 0.1 percent to 10 percent by weight, based on the total weight of the composition, of an allyl ester terminated nonaromatic polyester, e.g., diallyl 4-methyl-1,2-cyclohexanedicarboxylate oligomer with 1,4-butane diol. Polymerizates prepared from polymerizable organic compositions of the present invention have a refractive index of less than 1.53, e.g., from 1.49 to 1.50, and are substantially free of defects due to tinting failure.
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