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    • 59. 发明申请
    • Thermoplastic Resin Composition, Optical Film, And Process For Producing Film
    • 热塑性树脂组合物,光学膜及其制造方法
    • US20080177002A1
    • 2008-07-24
    • US11813382
    • 2005-12-27
    • Nobuyuki MiyakiYoshikazu MiyamotoNaoyui KawashimaIchiro KajiwaraSoichi Yoshida
    • Nobuyuki MiyakiYoshikazu MiyamotoNaoyui KawashimaIchiro KajiwaraSoichi Yoshida
    • C08L45/00G02B1/04
    • G02B5/3083C08J5/18C08J2333/24C08J2365/00C08L33/24C08L35/06C08L45/00C08L65/00C08L2666/04
    • The present invention is intended to provide a thermoplastic resin composition which is inhibited from suffering phase separation and from which an optical film having excellent transparency is readily obtained, an optical film containing the composition as a main component, a retardation film which is a film obtained by stretching the optical film and exhibits positive wavelength dependence and has a small coefficient of photoelasticity and transparency, and a process for producing the retardation film. The thermoplastic resin composition contains (A) a cycloolefin-based polymer and (B) a vinyl-based polymer having a unit represented by the following formula (II): wherein at least one of R1 to R4 is a group represented by the formula (III), the remainder of R1 to R4 if any, and R5 and R6 are each a hydrogen atom, a halogen atom, a substituted) hydrocarbon group which may have a linkage containing a hetero atom, or a polar group, R5 and R6 may be bonded to each other to form a monocyclic or polycyclic group which may have a hetero atom, or may be united to form a divalent hydrocarbon group and Y is a divalent hydrocarbon group.
    • 本发明旨在提供一种热塑性树脂组合物,其被抑制相分离,容易获得具有优异透明性的光学膜,含有该组合物作为主要成分的光学膜,作为获得的膜的相位差膜 通过拉伸光学膜并呈现正的波长依赖性并且具有小的光弹性和透明度系数以及用于制造延迟膜的工艺。 该热塑性树脂组合物含有(A)环烯烃系聚合物和(B)具有下述式(II)所示的单元的乙烯基系聚合物,其中,R 1〜R 4中的至少1个 4是由式(III)表示的基团,R 1至R 4的剩余部分(如果有的话)和R 5 R 6和R 6各自为氢原子,卤素原子,可具有含杂原子键的取代的烃基或极性基团R 5, / SUP>和R 6可以彼此键合以形成可以具有杂原子的单环或多环基团,或可以一起形成二价烃基,Y是二价烃基 。