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    • 8. 发明专利
    • Laminated film and polarizing plate with optical compensation layer
    • 层压膜和带光学补偿层的极化板
    • JP2009053492A
    • 2009-03-12
    • JP2007220780
    • 2007-08-28
    • Toray Ind Inc東レ株式会社
    • HIRAMA SUSUMUTSUKUDA AKIMITSU
    • G02B5/30B32B27/30B32B27/34B32B27/36G02F1/1335G02F1/13363
    • PROBLEM TO BE SOLVED: To provide a laminated film which is suitable for protection use of a polarizer having retardation, which has a simple manufacturing process and which is suitable as an optical film, and to provide a polarizing plate having retardation. SOLUTION: The laminated film has at least a layer A consisting of an acrylic resin and a layer B, consisting of one or more kinds from among polyamide, polyimide, polyester, polyether ketone, polyamideimide and polyesterimide and satisfies conditions (i) to (iv), at the same time, where (i): in-plane retardation Re(a) of the layer A is 5 nm or smaller, thickness direction retardation Rth(a) is ≥-5 nm and ≤5 nm, (ii) a photoelastic coefficient of the layer A is smaller than 5.0×10 -12 Pa -1 , (iii) formula: ¾Re(a')-Re(a)¾ ¾Rth(a)¾×50. COPYRIGHT: (C)2009,JPO&INPIT
    • 解决的问题:提供一种适合于保护使用具有延迟的偏振片的层叠膜,其具有简单的制造工艺并且适合作为光学膜,并且提供具有延迟的偏振片。 解决方案:层压膜至少具有由聚酰胺,聚酰亚胺,聚酯,聚醚酮,聚酰胺酰亚胺和聚酯酰亚胺中的一种或多种丙烯酸树脂和B层组成的层A,并且满足条件(i) 至(iv)同时,其中(i):层A的面内延迟Re(a)为5nm以下,厚度方向延迟Rth(a)为≥-5nm且≤5nm, (ⅱ)层A的光弹性系数小于5.0×10 SP-1,(iii)式:¾Re(a')-Re(a )当Tg表示构成层A的丙烯酸类树脂的玻璃化转变温度,并且Re(a')表示在Tg-10时拉伸至1.5倍时的面内相位差,¾<5(nm) ℃和(iv):层B的厚度方向延迟Rth(b)满足下式:¾Rth(b)¾>¾Rth(a)¾×50。 版权所有(C)2009,JPO&INPIT
    • 10. 发明专利
    • Method for producing polymeric porous membrane and the resultant polymeric porous membrane
    • 生产聚合多孔膜和聚合多孔膜的方法
    • JP2008056905A
    • 2008-03-13
    • JP2007186678
    • 2007-07-18
    • Toray Ind Inc東レ株式会社
    • NISHIHARA KENTASUEOKA MASANORITSUKUDA AKIMITSU
    • C08J9/28C08L77/10H01M2/16
    • Y02E60/12
    • PROBLEM TO BE SOLVED: To provide a method for producing a polymeric porous membrane at low cost, excellent in thin membrane formation, and capable of easily controlling stable porosity properties.
      SOLUTION: The method for producing the polymeric porous membrane comprises the following process: A mutually compatibilized solution comprising a water-insoluble polymer(polymer 1), a solvent which is a good solvent for the polymer 1 and compatible with water and a second polymer(polymer 2) incompatible with the polymer 1 and compatible with water and the above solvent, is made into a filmy form on a substrate. Thereafter, 5-100 wt.% of the solvent, based on the total amount of the solvent added, is evaporated to deposit at least the polymer 1.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种低成本制造聚合物多孔膜的方法,薄膜形成优异,并且能够容易地控制稳定的孔隙性。 解决方案:聚合物多孔膜的制造方法包括以下工序:含有水不溶性聚合物(聚合物1)的相溶相溶溶液,作为聚合物1的良溶剂的溶剂,与水和a相容的溶剂 与聚合物1不相容并与水和上述溶剂相容的第二聚合物(聚合物2)在基材上被制成膜状。 此后,将5-100重量%的溶剂(基于加入的溶剂的总量)蒸发至少沉积至聚合物1.版权所有(C)2008,JPO&INPIT