Method for producing a plastic lens using tertiary alkyl peroxy allyl carbonate
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United States of America Patent
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-
May 20, 1986
Grant Date -
N/A
app pub date -
Mar 23, 1983
filing date -
Mar 29, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A plastic lens which has high hardness and excellent scratch resistance and can form a transparent and uniform reflection preventing film through vacuum deposition, is produced by mixing (a) diethylene glycol bis(allyl carbonate) with (b) at least one of organic peroxides having a decomposition temperature at selected half-life value for ten hours of not higher than 80.degree. C. and (c) at least one of specifically limited peroxycarbonates having a radical copolymerizability to the diethylene glycol bis(allyl carbonate) (a), as a polymerization initiator, and polymerizing and casting the resulting mixture in a desired lens-forming mold.
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