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    Heat-shrinkable polyester film and process for production thereof
    1.
    发明授权
    Heat-shrinkable polyester film and process for production thereof 有权
    热收缩聚酯薄膜及其制造方法

    公开(公告)号：US07829655B2

    公开(公告)日：2010-11-09

    申请号：US12304531

    申请日：2007-06-13

    申请人： Takurou Endo ,  Masayuki Haruta ,  Norimi Tabota ,  Katsuhiko Nose

    发明人： Takurou Endo ,  Masayuki Haruta ,  Norimi Tabota ,  Katsuhiko Nose

    IPC分类号： C08G63/00 ,  B32B27/06

    CPC分类号： B29C55/146 ,  B29C61/003 ,  B29C61/06 ,  B29K2067/00 ,  B29K2995/0049 ,  C08J5/18 ,  C08J2367/02 ,  Y10T428/1328 ,  Y10T428/31786

    摘要： In the heat-shrinkable polyester film of the present invention, the main shrinkage direction is the longitudinal direction. In addition, the hot-water heat shrinkage ratios in the longitudinal direction and the width direction when the film is treated in hot water at 90° C. for 10 seconds, the refractive indexes in the longitudinal direction and the width direction and the natural shrinkage ratio after aging at 40° C. and 65% RH for 700 hours or more are each controlled in predetermined ranges. The heat-shrinkable polyester film of the present invention is manufactured by stretching an unstretched film at a ratio of 2.5 times or more and 6.0 times or less in the width direction at a temperature of Tg+5° C. or more and Tg+40° C. or less, passing the film in an intermediate zone that does not execute an active heating operation, heat-treating the film at a temperature of 100° C. or more and 170° C. or less over a period of 1.0 second or more and 10.0 seconds or less, cooling the film to a surface temperature of 30° C. or more and 70° C. or less, stretching the film at a ratio of 2.0 times or more and 7 times or less in the longitudinal direction at a temperature of Tg+5° C. or more and Tg+80° C. or less, and subsequently cooling the film at a cooling rate of 30° C./second or more and 70° C./second or less to a surface temperature of the film of 45° C. or more and 75° C. or less.

    摘要翻译： 在本发明的热收缩性聚酯膜中，主收缩方向为长度方向。 此外，当在90℃的热水中将膜处理10秒钟时，长度方向和宽度方向上的热水热收缩率，纵向和宽度方向上的折射率以及自然收缩率 在40℃和65％RH下老化700小时以上的比例分别控制在预定范围内。 本发明的热收缩性聚酯膜通过在Tg + 5℃以上的温度下在宽度方向上以2.5倍以上6.0倍以下的比例拉伸未拉伸膜而制造，Tg + 40 ℃以下，使膜处于不进行主动加热操作的中间区域，在1.0秒以上且170℃以下的温度下进行1.0秒钟的热处理 以上且10.0秒以下，将该膜冷却至30℃以上且70℃以下的表面温度，在长度方向上以2.0倍以上7倍以下的比例进行拉伸 在Tg + 5℃以上且Tg + 80℃以下的温度下，然后以30℃/秒以上且70℃/秒以下的冷却速度将膜冷却至 该膜的表面温度为45℃以上且75℃以下。

    HEAT-SHRINKABLE POLYESTER FILM AND PROCESS FOR PRODUCTION THEREOF
    2.
    发明申请
    HEAT-SHRINKABLE POLYESTER FILM AND PROCESS FOR PRODUCTION THEREOF 有权
    热收缩聚酯薄膜及其生产方法

    公开(公告)号：US20090270584A1

    公开(公告)日：2009-10-29

    申请号：US12304531

    申请日：2007-06-13

    申请人： Takurou Endo ,  Masayuki Haruta ,  Norimi Tabota ,  Katsuhiko Nose

    发明人： Takurou Endo ,  Masayuki Haruta ,  Norimi Tabota ,  Katsuhiko Nose

    IPC分类号： C08G63/02 ,  B29C55/12

    CPC分类号： B29C55/146 ,  B29C61/003 ,  B29C61/06 ,  B29K2067/00 ,  B29K2995/0049 ,  C08J5/18 ,  C08J2367/02 ,  Y10T428/1328 ,  Y10T428/31786

    摘要： In the heat-shrinkable polyester film of the present invention, the main shrinkage direction is the longitudinal direction. In addition, the hot-water heat shrinkage ratios in the longitudinal direction and the width direction when the film is treated in hot water at 90° C. for 10 seconds, the refractive indexes in the longitudinal direction and the width direction and the natural shrinkage ratio after aging at 40° C. and 65% RH for 700 hours or more are each controlled in predetermined ranges. The heat-shrinkable polyester film of the present invention is manufactured by stretching an unstretched film at a ratio of 2.5 times or more and 6.0 times or less in the width direction at a temperature of Tg+5° C. or more and Tg+40° C. or less, passing the film in an intermediate zone that does not execute an active heating operation, heat-treating the film at a temperature of 100° C. or more and 170° C. or less over a period of 1.0 second or more and 10.0 seconds or less, cooling the film to a surface temperature of 30° C. or more and 70° C. or less, stretching the film at a ratio of 2.0 times or more and 7 times or less in the longitudinal direction at a temperature of Tg+5° C. or more and Tg+80° C. or less, and subsequently cooling the film at a cooling rate of 30° C./second or more and 70° C./second or less to a surface temperature of the film of 45° C. or more and 75° C. or less.

    摘要翻译： 在本发明的热收缩性聚酯膜中，主收缩方向为长度方向。 此外，当在90℃的热水中将膜处理10秒钟时，长度方向和宽度方向上的热水热收缩率，纵向和宽度方向上的折射率以及自然收缩率 在40℃和65％RH下老化700小时以上的比例分别控制在预定范围内。 本发明的热收缩性聚酯膜通过在Tg + 5℃以上的温度下在宽度方向上以2.5倍以上6.0倍以下的比例拉伸未拉伸膜而制造，Tg + 40 ℃以下，使膜处于不进行主动加热操作的中间区域，在1.0秒以上且170℃以下的温度下进行1.0秒钟的热处理 以上且10.0秒以下，将该膜冷却至30℃以上且70℃以下的表面温度，在长度方向上以2.0倍以上7倍以下的比例进行拉伸 在Tg + 5℃以上且Tg + 80℃以下的温度下，然后以30℃/秒以上且70℃/秒以下的冷却速度将膜冷却至 该膜的表面温度为45℃以上且75℃以下。

    Heat-shrinkable polyester film roll and a process for producing the same
    7.
    发明授权
    Heat-shrinkable polyester film roll and a process for producing the same 有权
    热收缩聚酯薄膜卷及其制造方法

    公开(公告)号：US07939174B2

    公开(公告)日：2011-05-10

    申请号：US11159144

    申请日：2005-06-23

    申请人： Satoshi Hayakawa ,  Norimi Tabota ,  Yoshinori Takegawa ,  Katsuya Ito ,  Shigeru Komeda ,  Katsuhiko Nose

    发明人： Satoshi Hayakawa ,  Norimi Tabota ,  Yoshinori Takegawa ,  Katsuya Ito ,  Shigeru Komeda ,  Katsuhiko Nose

    IPC分类号： B32B27/36 ,  C08G63/16 ,  C08G63/18 ,  C08G63/181 ,  C08G63/183

    CPC分类号： C08J5/18 ,  B29C55/00 ,  B29C61/003 ,  B29K2067/00 ,  C08J2367/02 ,  Y10S428/91 ,  Y10T428/1328 ,  Y10T428/1331 ,  Y10T428/24 ,  Y10T428/31786

    摘要： A film roll of a heat-shrinkable polyester film characterized in that the heat-shrinkable polyester film meets the following requirements (1) and (2).(1) When samples are cut off therefrom at an almost equal interval along the longitudinal direction, and immersed in hot water at 85° C. for 10 seconds, subsequently in water at 25° C. and withdrawn, heat-shrinkage percentages in the maximum shrinkage direction of all the samples are 20% or more.(2) When raw polymers used for production of the film above comprises of a major constitutional unit and one or more sub constitutional units different therefrom; and the content of the primary sub constitutional unit is determined, the content of the primary sub constitutional unit in each sample is more than 7 mole % in 100% of all constitutional units, and when an average of the contents of the primary sub constitutional unit is calculated, the contents thereof of all the samples fall within a range of ±2 mole % relative to the average.

    摘要翻译： 一种热收缩性聚酯膜的膜卷，其特征在于，所述热收缩性聚酯膜满足以下要求（1）和（2）。 （1）将样品沿着长度方向以几乎相等的间隔切断，并将其浸入85℃的热水中10秒钟，随后在25℃的水中取出，加热收缩率 所有样品的最大收缩方向为20％以上。 （2）用于生产上述薄膜的原料聚合物包含主要结构单元和一个或多个与其不同的亚结构单元; 确定主要次级宪法单位的内容，在100％的所有宪法单位中，每个样本中的主要次级宪法单位的内容大于7摩尔％，并且当主要次级宪法单位的内容的平均值 ，其所有样品的含量相对于平均值为±2摩尔％的范围。

    HEAT-SHRINKABLE POLYESTER FILM ROLL AND A PROCESS FOR PRODUCING THE SAME
    10.
    发明申请
    HEAT-SHRINKABLE POLYESTER FILM ROLL AND A PROCESS FOR PRODUCING THE SAME 审中-公开
    热收缩聚酯薄膜滚筒及其制造方法

    公开(公告)号：US20080284057A1

    公开(公告)日：2008-11-20

    申请号：US11933673

    申请日：2007-11-01

    申请人： Satoshi Hayakawa ,  Norimi Tabota ,  Yoshinori Takegawa ,  Katsuya Ito ,  Shigeru Komeda ,  Katsuhiko Nose

    发明人： Satoshi Hayakawa ,  Norimi Tabota ,  Yoshinori Takegawa ,  Katsuya Ito ,  Shigeru Komeda ,  Katsuhiko Nose

    IPC分类号： B29C47/88 ,  C08L67/00

    CPC分类号： C08J5/18 ,  B29C55/00 ,  B29C61/003 ,  B29K2067/00 ,  C08J2367/02 ,  Y10S428/91 ,  Y10T428/1328 ,  Y10T428/1331 ,  Y10T428/24 ,  Y10T428/31786

    摘要： A film roll of a heat-shrinkable polyester film meeting the following requirements: (1) when samples are cut off therefrom at an almost equal interval along the longitudinal direction, and immersed in hot water at 85° C. for 10 seconds, subsequently in water at 25° C. and withdrawn, heat-shrinkage percentages in the maximum shrinkage direction of all the samples are 20% or more; and (2) when raw polymers used for production of the film above comprises of a major constitutional unit and one or more sub constitutional units different therefrom, and the content of the primary sub constitutional unit in each sample is more than 7 mole % in 100% of all constitutional units, and the contents of the primary sub constitutional unit of all the samples fall within a range of ±2 mole % relative to the average.

    摘要翻译： 一种热收缩聚酯薄膜的卷筒，其满足以下要求：（1）当沿着纵向以几乎相等的间隔切割样品时，将其浸入85℃的热水中10秒钟，随后在 25℃下的水分，所有样品的最大收缩方向的热收缩百分比为20％以上; 和（2）当用于生产上述膜的原料聚合物包含主要结构单元和一个或多个与其不同的亚结构单元时，每个样品中的初级次级结构单元的含量大于100摩尔％ 所有结构单位的百分比，所有样品的主要次级结构单位的含量相对于平均值在±2摩尔％的范围内。