Urethanized acrylic resin material for plastic lens and lens composed thereof
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United States of America Patent
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-
Dec 11, 1984
Grant Date -
N/A
app pub date -
Sep 21, 1983
filing date -
Sep 21, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A polymer obtained by polymerizing a urethanized acrylic or methacrylic monomer obtained by reacting the hydroxyl group of an acrylic or methacrylic monomer having a nucleus-halogen-substituted aromatic ring and a hydroxyl group with the isocyanate group of a polyfunctional isocyanate is excellent and has a high refractive index. Accordingly, this polymer is valuable as a resin material for a plastic lens.
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Cited Art Landscape
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