TRANSPARENT POLYURETHANES WITH HIGH GLASS TRANSITION TEMPERATURE Tg
    2.
    发明申请
    TRANSPARENT POLYURETHANES WITH HIGH GLASS TRANSITION TEMPERATURE Tg 审中-公开
    透明聚氨酯具有高玻璃化转变温度Tg

    公开(公告)号:US20150246998A1

    公开(公告)日:2015-09-03

    申请号:US14624761

    申请日:2015-02-18

    Abstract: The present invention relates to a polyurethane exclusively composed of a polyisocyanate component and of a polyol component, where the polyisocyanate component consists of one or more polyisocyanates and the average NCO functionality per molecule of the polyisocyanate component is ≧3, and the polyol component consists of one or more polyols and the average OH functionality per molecule of the polyol component is ≧3 and its OH content is ≧25% by weight. The invention further relates to a process for the production of the polyurethane of the invention, to an optical element comprising or consisting of a polyurethane of the invention, and also to the use of a polyurethane of the invention for conducting light, scattering light and/or deflecting

    Abstract translation: 本发明涉及由多异氰酸酯组分和多元醇组分单独组成的聚氨酯,其中多异氰酸酯组分由一种或多种多异氰酸酯组成,每分子多异氰酸酯组分的平均NCO官能度≥3,多元醇组分由 一种或多种多元醇和每分子多元醇组分的平均OH官能度为≥3,其OH含量为≥25重量%。 本发明还涉及本发明的聚氨酯的制备方法,涉及包含本发明的聚氨酯或由本发明的聚氨酯组成的光学元件,以及本发明的聚氨酯用于传导光,散射光和/ 或偏转

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