TRANSPARENT MOLDED ARTICLE, OPTICAL MEMBER, PLASTIC LENS, AND METHODS OF MANUFACTURING SAME
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United States of America Patent
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May 15, 2015
filing date -
Mar 21, 2001
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Abstract
A transparent molded article is comprised of a polymer of an isocyanate terminal prepolymer and one or more aromatic diamines, and the polymer further includes one or more phosphorous peroxide decomposing agents. The isocyanate terminal prepolymer is in the form of a reaction product of an aliphatic diisocyanate having an intramolecular cyclic structure and one of a polyether diol and a polyester diol, and the isocyanate group content of the prepolymer ranges from 10 to 20 weight percent.
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