Optical resin composition and method for producing the same
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United States of America Patent
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Jun 11, 2013
Grant Date -
Nov 24, 2011
app pub date -
Aug 5, 2011
filing date -
Jun 24, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
To provide an optical resin composition containing carbonate crystals, which have oriented birefringence, have a needle- or rod-like shape, and are able to negate the birefringence without sacrificing the light transmittance of a transparent polymeric resin where the carbonate crystal exists, and a method for producing the resin composition. To achieve this provided are an optical resin composition containing a resin and carbonate crystals, wherein the carbonate crystals have a specific surface area of 4 m2/g or more, and the carbonate crystals dispersed into the resin have an average dispersion diameter of 500 nm at a maximum, and a method for producing the optical resin composition.
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