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    Polyester film roll
    1.
    发明授权
    Polyester film roll 有权
    聚酯薄膜卷

    公开(公告)号：US08485460B2

    公开(公告)日：2013-07-16

    申请号：US09914033

    申请日：2000-12-18

    申请人： Ieyasu Kobayashi ,  Mitsuo Tojo ,  Tsuyonari Nohira ,  Shinji Muro ,  Hirofumi Murooka

    发明人： Ieyasu Kobayashi ,  Mitsuo Tojo ,  Tsuyonari Nohira ,  Shinji Muro ,  Hirofumi Murooka

    IPC分类号： B65H18/28

    CPC分类号： C08J5/18 ,  C08J2367/02 ,  Y10T428/139 ,  Y10T428/25

    摘要： A polyester film roll is rolled on a core, wherein the difference R (m) between the maximum value and the minimum value of the diameters of the roll is not more than 2W×10−3 and not more than L×10−7, when the diameters of said roll are measured in the width direction of the roll, (therein, W is the width (m) of the film roll, and L is the length (m) of the rolled film). Alternatively, among the lengths of lines which are obtained by measuring the diameters of said roll in the width direction of the roll, drawing a straight line between both the ends of the curved line of the obtained roll diameters, the maximum distance on the convex portion between the curved and straight lines is not more than 500 μm, and the maximum distance on the concave portion of the same is not more than 300 μm.

    摘要翻译： 将聚酯薄膜辊卷绕在芯上，其中辊的直径的最大值和最小值之间的差R（m）不大于2W×10-3且不大于L×10-7， 当在辊的宽度方向上测量所述辊的直径时（其中W是膜卷的宽度（m），L是轧制膜的长度（m））。 或者，在通过测量辊的宽度方向上的所述辊的直径获得的线的长度之间，在获得的辊直径的曲线的两个端部之间绘制直线，凸起部分上的最大距离 弯曲直线之间的距离不大于500μm，并且其凹部上的最大距离不大于300μm。

    Polyester film roll
    2.
    发明授权
    Polyester film roll 有权
    聚酯薄膜卷

    公开(公告)号：US08191812B2

    公开(公告)日：2012-06-05

    申请号：US10832279

    申请日：2004-04-27

    申请人： Ieyasu Kobayashi ,  Mitsuo Tojo ,  Tsuyonari Nohira ,  Shinji Muro ,  Hirofumi Murooka

    发明人： Ieyasu Kobayashi ,  Mitsuo Tojo ,  Tsuyonari Nohira ,  Shinji Muro ,  Hirofumi Murooka

    IPC分类号： B65H18/28 ,  B32B3/02 ,  B32B5/16

    CPC分类号： C08J5/18 ,  C08J2367/02 ,  Y10T428/139 ,  Y10T428/25

    摘要： The polyester film roll, which is free from wrinkles and slacks generated with the passage of time and is having a good roll appearance, is provided without changing the characteristics of the film.The polyester film roll is a polyester film roll in which a polyester film is rolled on a core, characterized in that the difference R (m) between the maximum value and the minimum value is not more than 2 W×10−3 and not more than L×10−7, when the diameters of said roll are measured in the width direction of the roll, (therein, W is the width (m) of the film roll, and L is the rolled length (m) of the film roll), or a polyester film roll in which a polyester film is rolled on a core, characterized in that, among the lengths of lines which are obtained by measuring the diameters of said roll in the width direction of the roll, drawing a straight line between both the ends of the curved line of the obtained roll diameters, and then vertically drawing the lines from said curved line to said straight line, the maximum length (maximum convex portion) on the convex portion side from said straight line is not more than 500 μm, and the maximum length (maximum concave portion) on the concave portion side from said straight line is not more than 300 μm.

    摘要翻译： 在不改变膜特性的情况下，提供无时间地产生并且具有良好的卷筒外观的皱纹和松弛的聚酯薄膜卷。 聚酯薄膜卷是将聚酯薄膜卷绕在芯上的聚酯薄膜卷，其特征在于最大值与最小值之间的差值R（m）不大于2×10×10-3，而不是更大 比L×10-7大，当在辊的宽度方向上测量所述辊的直径时（其中W是膜卷的宽度（m），L是膜的卷绕长度（μm） 或聚酯膜在芯上卷起的聚酯薄膜辊，其特征在于，通过测量所述辊在辊的宽度方向上的直径而获得的线的长度之间，绘制直线 在所获得的辊直径的曲线的两端之间，然后将所述曲线的直线垂直拉伸到所述直线，所述直线上的凸部侧的最大长度（最大凸部）不大于 500μm，最大长度（最大凹部） 来自所述直线的洞部侧不大于300μm。

    Biaxially oriented laminated polyester film and magnetic recording medium
    3.
    发明授权
    Biaxially oriented laminated polyester film and magnetic recording medium 失效
    双轴取向叠层聚酯薄膜和磁记录介质

    公开(公告)号：US06773802B2

    公开(公告)日：2004-08-10

    申请号：US10182646

    申请日：2002-07-31

    申请人： Ieyasu Kobayashi ,  Shinji Muro ,  Hirofumi Murooka

    发明人： Ieyasu Kobayashi ,  Shinji Muro ,  Hirofumi Murooka

    IPC分类号： B32B1800

    CPC分类号： B32B27/08 ,  B32B27/20 ,  B32B27/36 ,  B32B2307/518 ,  B32B2367/00 ,  G11B5/73 ,  G11B5/7315 ,  G11B5/733 ,  Y10T428/252 ,  Y10T428/254 ,  Y10T428/256 ,  Y10T428/259 ,  Y10T428/26 ,  Y10T428/265 ,  Y10T428/31786 ,  Y10T428/31794

    摘要： A biaxially oriented layered polyester film which is excellent in suitability for winding and processability while retaining the flatness of the flat surface and which gives a magnetic recording medium, especially a metal coating type high-recording-density magnetic recording medium, having excellent electromagnetic characteristics. The biaxially oriented layered polyester film comprises a second polyester layer and superposed on one side thereof a first polyester layer containing an ester of a C12 or higher aliphatic monocarboxylic acid with a polyhydric alcohol and three inert particulate materials differing in average particle diameter. In the film, one of the Young's moduli respectively in the longitudinal direction and transverse direction is 6 GPa or higher and the other is 4 GPa or higher.

    摘要翻译： 一种双轴取向层状聚酯膜，其在保持平坦表面的平坦性的同时保持卷绕和加工性能优异，并且具有优异的电磁特性，并且提供了具有优异电磁特性的磁记录介质，特别是金属涂层型高记录密度磁记录介质。 双轴取向层状聚酯膜包括第二聚酯层，并且在其一侧上叠加含有C12或更高级脂族一元羧酸与多元醇的酯和平均粒径不同的三种惰性颗粒材料的第一聚酯层。 在膜中，纵向和横向上的杨氏模量之一为6GPa以上，另一方为4GPa以上。

    Biaxially oriented polyester film and production process therefor
    4.
    发明申请
    Biaxially oriented polyester film and production process therefor 失效
    双轴取向聚酯薄膜及其生产工艺

    公开(公告)号：US20050031880A1

    公开(公告)日：2005-02-10

    申请号：US10942140

    申请日：2004-09-16

    申请人： Ieyasu Kobayashi ,  Shinji Muro ,  Hirofumi Murooka

    发明人： Ieyasu Kobayashi ,  Shinji Muro ,  Hirofumi Murooka

    IPC分类号： B29C55/00 ,  B29C55/12 ,  B29C55/14 ,  C08J5/18 ,  G11B5/73 ,  D06N7/04 ,  B32B27/36 ,  G11B5/64

    CPC分类号： C08J5/18 ,  B29C55/005 ,  B29C55/12 ,  B29C55/143 ,  B29K2067/00 ,  C08J2367/02 ,  G11B5/7305 ,  Y10S428/91 ,  Y10T428/24355 ,  Y10T428/31678 ,  Y10T428/31681 ,  Y10T428/31786 ,  Y10T428/31855

    摘要： A biaxially oriented polyester film for a high-density magnetic recording medium, particularly a high-density magnetic recoding medium of linear recording system, which has high strength in longitudinal and transverse directions, excellent dimensional stability in a crosswise direction and is flat and excellent in output characteristics and a process for producing the same. The biaxially oriented film is made from polyethylene-2,6-naphthalate and has a Young's modulus in a longitudinal direction of 8 GPa or more, a Young's modulus in a transverse direction of 6 GPa or more, a temperature expansion coefficient in the transverse direction (αt) of −5×10−6/° C. to +12×10−6/° C., a humidity expansion coefficient in the transverse direction (αh) of 5×10−6/% RH to 12×10−6/% RH and a thermal shrinkage factor in the transverse direction at 105° C. of −0.5 to +1.5%

    摘要翻译： 一种用于高密度磁记录介质的双轴取向聚酯膜，特别是线性记录系统的高密度磁记录介质，其纵向和横向具有高强度，在横向上具有优异的尺寸稳定性，并且平坦且优异 输出特性及其制造方法。 双轴取向膜由聚2,6-萘二甲酸乙二醇酯制造，长度方向的杨氏模量为8GPa以上，横向杨氏模量为6GPa以上，横向的温度膨胀系数 （alphat）为-5×10 -6 /℃至+ 12×10 -6 /℃，横向湿度膨胀系数（alphah）为5×10 -6 / RH至12×10 -6 / 6℃/％RH，105℃下横向的热收缩率为-0.5〜1.5％

    Biaxially oriented polyester film and production process therefor
    5.
    发明授权
    Biaxially oriented polyester film and production process therefor 失效
    双轴取向聚酯薄膜及其生产工艺

    公开(公告)号：US07122241B2

    公开(公告)日：2006-10-17

    申请号：US10942140

    申请日：2004-09-16

    申请人： Ieyasu Kobayashi ,  Shinji Muro ,  Hirofumi Murooka

    发明人： Ieyasu Kobayashi ,  Shinji Muro ,  Hirofumi Murooka

    IPC分类号： B32B15/09 ,  B32B27/06 ,  B32B27/36

    CPC分类号： C08J5/18 ,  B29C55/005 ,  B29C55/12 ,  B29C55/143 ,  B29K2067/00 ,  C08J2367/02 ,  G11B5/7305 ,  Y10S428/91 ,  Y10T428/24355 ,  Y10T428/31678 ,  Y10T428/31681 ,  Y10T428/31786 ,  Y10T428/31855

    摘要： A biaxially oriented polyester film for a high-density magnetic recording medium, particularly a high-density magnetic recoding medium of linear recording system, which has high strength in longitudinal and transverse directions, excellent dimensional stability in a crosswise direction and is flat and excellent in output characteristics and a process for producing the same. The biaxially oriented film is made from polyethylene-2,6-naphthalate and has a Young's modulus in a longitudinal direction of 8 GPa or more, a Young's modulus in a transverse direction of 6 GPa or more, a temperature expansion coefficient in the transverse direction (αt) of −5×10−6/° C. to +12×10−6/° C., a humidity expansion coefficient in the transverse direction (αh) of 5×10−6/% RH to 12×10−6/% RH and a thermal shrinkage factor in the transverse direction at 105° C. of −0.5 to +1.5%.

    摘要翻译： 一种用于高密度磁记录介质的双轴取向聚酯膜，特别是线性记录系统的高密度磁记录介质，其纵向和横向具有高强度，在横向上具有优异的尺寸稳定性，并且平坦且优异 输出特性及其制造方法。 双轴取向膜由聚2,6-萘二甲酸乙二醇酯制造，长度方向的杨氏模量为8GPa以上，横向杨氏模量为6GPa以上，横向的温度膨胀系数 （alphat）为-5×10 -6 /℃至+ 12×10 -6 /℃，横向湿度膨胀系数（alphah）为5×10 6 / SUP> -6％/％RH至12×10 -6 /％RH，在105℃下横向的热收缩率为-0.5至+ 1.5％。

    Biaxially oriented polyester film and method for production thereof
    6.
    发明授权
    Biaxially oriented polyester film and method for production thereof 失效
    双轴取向聚酯薄膜及其制造方法

    公开(公告)号：US06890471B2

    公开(公告)日：2005-05-10

    申请号：US10203346

    申请日：2001-12-07

    申请人： Ieyasu Kobayashi ,  Shinji Muro ,  Hirofumi Murooka

    发明人： Ieyasu Kobayashi ,  Shinji Muro ,  Hirofumi Murooka

    IPC分类号： B29C55/00 ,  B29C55/12 ,  B29C55/14 ,  C08J5/18 ,  G11B5/73

    CPC分类号： C08J5/18 ,  B29C55/005 ,  B29C55/12 ,  B29C55/143 ,  B29K2067/00 ,  C08J2367/02 ,  G11B5/7305 ,  Y10S428/91 ,  Y10T428/24355 ,  Y10T428/31678 ,  Y10T428/31681 ,  Y10T428/31786 ,  Y10T428/31855

    摘要： A biaxially oriented polyester film for a high-density magnetic recording medium, particularly a high-density magnetic recoding medium of linear recording system, which has high strength in longitudinal and transverse directions, excellent dimensional stability in a crosswise direction and is flat and excellent in output characteristics and a process for producing the same. The biaxially oriented film is made from polyethylene-2,6-naphthalate and has a Young's modulus in a longitudinal direction of 8 GPa or more, a Young's modulus in a transverse direction of 6 GPa or more, a temperature expansion coefficient in the transverse direction (αt) of −5×10−6/° C. to +12×10−6/° C., a humidity expansion coefficient in the transverse direction (αh) of 5×10−6/% RH to 12×10−6/% RH and a thermal shrinkage factor in the transverse direction at 105° C. of −0.5 to +1.5%

    摘要翻译： 一种用于高密度磁记录介质的双轴取向聚酯膜，特别是线性记录系统的高密度磁记录介质，其纵向和横向具有高强度，在横向上具有优异的尺寸稳定性，并且平坦且优异 输出特性及其制造方法。 双轴取向膜由聚2,6-萘二甲酸乙二醇酯制造，长度方向的杨氏模量为8GPa以上，横向杨氏模量为6GPa以上，横向的温度膨胀系数 （alphat）为-5×10 -6 /℃至+ 12×10 -6 /℃，横向湿度膨胀系数（alphah）为5×10 6 / SUP> -6％/％RH至12×10 -6 / RH，在105℃下横向的热收缩率为-0.5至+ 1.5％

    Biaxially oriented polyester film and magnetic recording tape
    10.
    发明授权
    Biaxially oriented polyester film and magnetic recording tape 有权
    双轴取向聚酯薄膜和磁记录胶带

    公开(公告)号：US08404371B2

    公开(公告)日：2013-03-26

    申请号：US13117224

    申请日：2011-05-27

    申请人： Ieyasu Kobayashi ,  Shinji Muro ,  Takeshi Ishida

    发明人： Ieyasu Kobayashi ,  Shinji Muro ,  Takeshi Ishida

    IPC分类号： G11B5/706 ,  G11B5/60

    CPC分类号： G11B5/7305 ,  B29C55/12 ,  B29C55/143 ,  B29K2067/00 ,  C08J5/18 ,  C08J2367/02 ,  G11B5/733

    摘要： A biaxially oriented polyester film which has a Young's modulus (YMD) in the film machine direction (YMD) of 6.5 GPa or more and a Young's modulus in the width direction (YTD) of 8.2 to 9.8 GPa and is used as a base film for magnetic recording tapes of linear recording system, and a magnetic recording tape of linear recording system comprising the same as a base film.There are provided a biaxially oriented polyester film which has excellent dimensional stability, especially dimensional stability in the width direction and is suitable for use as a base film for magnetic recording tapes of linear recording system and a magnetic recording tape comprising the same.

    摘要翻译： 将膜长度方向（YMD）的杨氏模量（YMD）为6.5GPa以上，宽度方向的杨氏模量（YTD）为8.2〜9.8GPa的双轴取向聚酯膜用作基膜 线性记录系统的磁记录带，以及包括与基膜相同的线性记录系统的磁记录带。 提供了具有优异的尺寸稳定性，特别是宽度方向的尺寸稳定性的双轴取向聚酯膜，适合用作线性记录系统的磁记录带的基膜和包含该基片的磁记录带。