Optical lenses having a scratch-resistant coating
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United States of America Patent
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Jun 10, 1986
Grant Date -
N/A
app pub date -
Aug 1, 1984
filing date -
Aug 3, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Lenses of allyl-N-ethylene glycol carbonate having enhanced resistance to scratching or abrasion can be formed by preparing a substrate of a polymer or copolymer of allyl-N-ethylene glycol carbonate, the substrate being at least partially polymerized. A thin film of a copolymer of allyl-N-ethylene glycol carbonate and of an allyl monomer is formed by overmolding on the substrate and polymerized.
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