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    POLYCARBONATE RESIN COMPOSITION OR COPOLYMER, AND OPTICAL FILM
    1.
    发明公开
    POLYCARBONATE RESIN COMPOSITION OR COPOLYMER, AND OPTICAL FILM 审中-公开

    公开(公告)号：EP3926000A1

    公开(公告)日：2021-12-22

    申请号：EP20755326.4

    申请日：2020-02-03

    申请人： Teijin Limited

    发明人： MAEKAWA, Shoichi ,  OKADA, Yohei

    IPC分类号： C08G64/16 ,  C08L69/00 ,  C08J5/18

    摘要： A polycarbonate resin composition or a copolymer, comprising, as main repeating units, a carbonate unit (a-1) having a fluorene ring in a side chain, a carbonate unit (a-2) represented by the following formula (a-2):

    (wherein W represents an alkylene group having 1 to 20 carbon atoms or a cycloalkylene group having 6 to 20 carbon atoms, R represents a branched or linear-chain alkyl group having 1 to 20 carbon atoms or a cycloalkyl group having 6 to 20 carbon atoms optionally having a substituent, and u represents an integer of 0 to 3), and a carbonate unit (a-3) derived from 2,2-bis(4-hydroxyphenyl)propane, wherein
    1) a molar ratio of the carbonate unit (a-1) to the carbonate unit (a-2) is from 50/50 to 80/20, and
    2) a molar ratio of the total of the carbonate unit (a-1) and the carbonate unit (a-2) to the carbonate unit (a-3) is from 1:99 to 70:30. This polycarbonate resin composition or copolymer has excellent heat resistance, transparency, and bending resistance and has low retardation.

    FILM
    6.
    发明公开
    FILM 审中-公开
    电影

    公开(公告)号：EP3272793A1

    公开(公告)日：2018-01-24

    申请号：EP16765096.9

    申请日：2016-03-14

    申请人： Teijin Limited

    发明人： TAKAHASHI, Naoshi ,  MOTOYOSHI, Tetsuya ,  IMAZATO, Kenta ,  SHIMIZU, Toshiyuki ,  MAEKAWA, Shoichi ,  YAMANAKA, Katsuhiro

    IPC分类号： C08J5/18 ,  B32B27/18 ,  B32B27/36 ,  C08K5/3435 ,  C08K5/3492 ,  C08L69/00

    CPC分类号： C08J5/18 ,  B32B27/18 ,  B32B27/36 ,  B32B27/365 ,  C08J7/047 ,  C08J2369/00 ,  C08J2475/06 ,  C08K5/0041 ,  C08K5/3435 ,  C08K5/3475 ,  C08K5/3492 ,  C08L69/00

    摘要： A film having high transparency, weather resistance and moist heat resistance, excellent tensile characteristics, a good hue and high surface hardness.
    The film comprises:
    (a) 100 parts by weight of a polycarbonate resin (component a) containing a carbonate unit (A) represented by the following formula (A) and having a specific viscosity measured from a 20°C methylene chloride solution of 0.2 to 0.5;
    (b) 0.03 to 2.5 parts by weight of at least one ultraviolet absorbent (component b) selected from the group consisting of an ultraviolet absorbent having a benzotriazole skeleton and an ultraviolet absorbent having a triazine skeleton;
    (c) 0.0001 to 0.02 part by weight of a coloring agent (component c); and
    (d) 0.01 to 1 part by weight of a hindered amine-based optical stabilizer (component d).

    摘要翻译： 具有高透明性，耐候性和耐湿热性，优异的拉伸特性，良好的色调和高表面硬度的薄膜。 该膜包括：（a）100重量份含有由下式（A）表示的碳酸酯单元（A）并且具有0.2的由20℃二氯甲烷溶液测量的比粘度的聚碳酸酯树脂（组分a） 到0.5; （b）0.03至2.5重量份的至少一种选自具有苯并三唑骨架的紫外线吸收剂和具有三嗪骨架的紫外线吸收剂的紫外线吸收剂（组分b）; （c）0.0001-0.02重量份的着色剂（组分c）; 和（d）0.01至1重量份受阻胺基光稳定剂（组分d）。