Polyester film, laminated film, solar battery backsheet and solar battery
    3.
    发明授权
    Polyester film, laminated film, solar battery backsheet and solar battery 有权
    聚酯薄膜,层压薄膜,太阳能电池背板和太阳能电池

    公开(公告)号:US08981212B2

    公开(公告)日:2015-03-17

    申请号:US13376287

    申请日:2010-06-02

    摘要: A polyester film includes particles and two kinds of crystalline polyester resins in which a sea-island structure is formed, wherein, if a crystallization temperature of a crystalline polyester resin A that forms a continuous phase or matrix phase in the polyester film is represented by TccA and a crystallization temperature of a crystalline polyester resin B that forms a dispersion phase or domain phase in the polyester film is represented by TccB, expression (1) below is satisfied, and a degree of flatness of the dispersion phase is 3 or more, and 70% or more of a total number of the particles present in the dispersion phase or are in contact with the dispersion phase: TccA−TccB≧5° C.  Expression (1).

    摘要翻译: 聚酯膜包括颗粒和形成海岛结构的两种结晶聚酯树脂,其中如果在聚酯膜中形成连续相或基质相的结晶性聚酯树脂A的结晶温度由TccA 在聚酯膜中形成分散相或畴相的结晶性聚酯树脂B的结晶温度由TccB表示,满足下述式(1),分散相的平坦度为3以上, 存在于分散相中或与分散相接触的颗粒总数的70%以上:TccA-TccB≥5℃。表达式(1)。