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    RANDOM MAT AND FIBRE-REINFORCED COMPOSITE MATERIAL
    131.
    发明公开
    RANDOM MAT AND FIBRE-REINFORCED COMPOSITE MATERIAL 审中-公开
    偶然地垫和纤维增强复合材料

    公开(公告)号：EP2810979A4

    公开(公告)日：2015-07-08

    申请号：EP13744132

    申请日：2013-01-31

    申请人： TEIJIN LTD

    发明人： KONAGAI YUHEI ,  HAGIHARA KATSUYUKI ,  NAITO TAKESHI ,  SONODA NAOAKI

    IPC分类号： C08J5/04 ,  B29C70/12 ,  D04H1/4242

    CPC分类号： C08J5/042 ,  B29C70/12 ,  D04H1/4242 ,  Y10T428/268

    摘要： There is provided a random mat for obtaining a fiber-reinforced composite material excellent in tensile strength. A random mat including carbon fibers and a matrix resin, wherein the carbon fibers in the random mat have an average fiber length in a range of 3 mm to 100 mm, a fiber areal weight of the carbon fibers is 25 to 10,000 g/m 2 , at least one of fiber bundles including the carbon fibers less than a critical number of single fiber being defined by the following formula (1) and a single fiber, and carbon fiber bundles (A) constituted by the carbon fibers of the critical number of single fiber or more are present in the random mat, a ratio of the carbon fiber bundles (A) to a total amount of the carbon fibers in the random mat is a range of 20 Vol% to 99 Vol%, an average number (N) of fibers in the carbon fiber bundles (A) satisfies the following formula (2), and a ratio of carbon fiber bundles having a thickness of 100 µm or more of the carbon fiber bundles (A) is less than 3% of the number of whole carbon fiber bundles (A): Critical number of single fiber = 600 / D 0.6 × 10 4 / D 2

    HIGH-INSULATING FILM
    137.
    发明公开
    HIGH-INSULATING FILM 有权
    HOCHISOLIERENDE SCHICHT

    公开(公告)号：EP2712883A4

    公开(公告)日：2015-03-25

    申请号：EP12776849

    申请日：2012-04-25

    申请人： TEIJIN LTD

    发明人： NAKAHIRO TAKASHI ,  NAKAGAWA DAI ,  YOSHIDA TETSUO ,  NISHIYAMA MASANORI

    IPC分类号： C08J5/18 ,  B29C55/12 ,  C08J7/04 ,  C08L25/04

    CPC分类号： C08L25/06 ,  B29C37/0025 ,  B29C55/026 ,  B29C55/143 ,  B29K2025/04 ,  B29K2071/12 ,  C08J5/18 ,  C08J2325/04 ,  C08J2471/12 ,  H01B17/56 ,  Y10T428/265 ,  Y10T428/31663 ,  Y10T428/31801 ,  Y10T428/31938

    摘要： An object of this invention is to provide a highly insulating film, which is excellent in the heat resistance and has increased breakdown voltage. This invention is a highly insulating film, which is characterized by comprising a biaxially stretched film containing a styrene polymer having a syndiotactic structure as a main component, containing a thermoplastic amorphous resin Y having a glass transition temperature Tg by DSC of 130°C or higher in an amount of 5% by mass or more and 48% by mass or less, and having a plane orientation coefficient (”P) represented by the following equation (1) of -0.027 or less. ”P=(Nx+Ny)/2-Nz (1) (Here, in the equation (1), Nx represents the minimum value of the refractive index in the plane direction of the film, Ny represents the refractive index in the direction perpendicular to Nx in the plane direction of the film, and Nz represents the refractive index in the thickness direction of the film.)

    摘要翻译： 本发明的目的是提供一种耐热性优异并且具有增加的击穿电压的高绝缘性膜。 本发明是一种高度绝缘的膜，其特征在于包括含有间同立构结构作为主要成分的苯乙烯聚合物的双轴拉伸膜，其含有DSC为130℃以上的玻璃化转变温度Tg的热塑性非晶性树脂Y 其量为5质量％以上且48质量％以下，并且具有-0.027以下的由下式（1）表示的面取向系数（“P”）。 “P =（Nx + Ny）/ 2-Nz（1）（这里，在式（1）中，Nx表示膜的平面方向的折射率的最小值，Ny表示膜的折射率 在膜的平面方向垂直于Nx，Nz表示膜的厚度方向的折射率。）