POLYOL OR POLYTHIOL COMPOUND, PREPARATION METHOD THEREFOR, TRANSPARENT POLYURETHANE-BASED RESIN PREPARED THEREFROM, AND OPTICAL BODY
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United States of America Patent
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Issued Date -
Feb 15, 2024
app pub date -
Oct 5, 2023
filing date -
Feb 15, 2017
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Abstract
The present invention relates to a novel polyol or polythiol having three or more functional groups, a preparation method there for, and an optical body manufactured therefrom. Especially, the present invention relates to a poly(thio)urethane-based resin and an optical body, such as lenses, manufactured using the resin, wherein the poly(thio)urethane-based resin is prepared by obtaining a novel polyol and then combining a polythiol, which is prepared from the obtained polyol, with a polyiso(thio)cyanate.
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