STABILIZATION OF PHOTOCHROMIC SYSTEMS
    4.
    发明申请
    STABILIZATION OF PHOTOCHROMIC SYSTEMS 有权
    光电系统的稳定性

    公开(公告)号:US20090289236A1

    公开(公告)日:2009-11-26

    申请号:US12508641

    申请日:2009-07-24

    IPC分类号: G02B5/23

    CPC分类号: C08K5/3492

    摘要: Photochromic compositions are disclosed comprising a polymeric material, a photochromic dye, a hydroxyphenyl triazine UV absorber and, optionally, a further light stabilizer selected from the sterically hindered amines. These systems provide a reversible photochromic effect and show improved light stabilization and color fastness.

    摘要翻译: 公开的光致变色组合物包含聚合物材料,光致变色染料,羟基苯基三嗪UV吸收剂和任选的另外的选自空间位阻胺的光稳定剂。 这些系统提供可逆的光致变色作用并显示改善的光稳定性和色牢度。

    Process for improving color of polycondensates
    8.
    发明申请
    Process for improving color of polycondensates 审中-公开
    降低缩聚物颜色的方法

    公开(公告)号:US20070027252A1

    公开(公告)日:2007-02-01

    申请号:US10572153

    申请日:2004-09-17

    IPC分类号: C08K3/32

    CPC分类号: C08G63/78 C08G63/80

    摘要: The present invention relates to a process of preparing a polycondensate in the presence of a fluorescent whitening agent and at least one phosphonate, and/or phosphinate. Further aspects of the invention are a polyester prepared according to this process and composition comprising a polycondensate, a fluorescent whitening agent and at least one phosphonate and/or phosphinate. Yet another aspect is the use of a fluorescent whitening agent and at least one phosphonate and/or phosphinate for improving the color of a polycondensate.

    摘要翻译: 本发明涉及在荧光增白剂和至少一种膦酸酯和/或次膦酸盐存在下制备缩聚物的方法。 本发明的其它方面是根据该方法制备的聚酯和包含缩聚物,荧光增白剂和至少一种膦酸酯和/或次膦酸盐的组合物。 另一方面是使用荧光增白剂和至少一种膦酸盐和/或次膦酸盐来改善缩聚物的颜色。