公开(公告)号：US20180272594A1

公开(公告)日：2018-09-27

申请号：US15762652

申请日：2016-10-03

Applicant: UNITIKA LTD.

Inventor： Ken Akamatsu ,  Masami Matsumoto

IPC: B29C55/14 ,  B32B15/09 ,  B32B7/12 ,  B32B37/12 ,  B29C47/00 ,  B29C55/00 ,  B29C71/02

CPC classification number: B29C55/143 ,  B29C47/0004 ,  B29C47/0021 ,  B29C47/0057 ,  B29C55/005 ,  B29C55/12 ,  B29C71/02 ,  B29K2067/00 ,  B29K2509/02 ,  B29L2007/008 ,  B32B7/12 ,  B32B15/09 ,  B32B37/12 ,  B32B2307/518 ,  C08J5/18

Abstract: The present invention provides a polyester film, wherein an arbitrary direction on the film surface is defined to have an angle of 0°, and three directions are defined to have angles of 45°, 90°, and 135°, respectively, clockwise from the 0° direction, and the difference between the maximum value and the minimum value of the stresses at 5% elongation in the four directions is 50 MPa or less, the difference between the maximum value and the minimum value of the stresses at 15% elongation i,n the four directions is 70 MPa or less, and the modulus of elasticity in any one of the four directions falls within a range from 2.0 to 3.5 GPa.

公开(公告)号：US20180264711A1

公开(公告)日：2018-09-20

申请号：US15535448

申请日：2015-12-16

Applicant: UNITIKA LTD.

Inventor： Masami Matsumoto

IPC: B29C55/14 ,  B29C47/00 ,  B29C55/00 ,  B29C71/02 ,  B32B7/12 ,  B32B15/088 ,  C08L77/00 ,  C08J5/18 ,  C08J5/12 ,  B65D65/40

CPC classification number: B29C55/143 ,  B29C48/0018 ,  B29C48/022 ,  B29C48/08 ,  B29C55/005 ,  B29C55/12 ,  B29C71/02 ,  B29K2077/00 ,  B29K2509/02 ,  B29L2007/008 ,  B32B7/12 ,  B32B15/088 ,  B32B27/34 ,  B32B2307/518 ,  B32B2439/00 ,  B65D65/40 ,  C08J5/124 ,  C08J5/18 ,  C08J7/04 ,  C08J2377/00 ,  C08J2467/02 ,  C08J2475/04 ,  C08J2477/02 ,  C08L77/00 ,  C08L2205/025

Abstract: Provided are a polyamide-based film having superior thickness uniformity as well as comparatively little variation in properties in four directions formed of the 0 degree direction, 45 degree direction, 90 degree direction and 135 degree direction, and a method for producing the same. The present invention relates to a polyamide-based film, wherein (1) the difference between the maximum value and minimum value of the respective stress at 5% elongation as determined by a uniaxial tensile test is 35 MPa or less in four directions formed of a specific direction from an arbitrary point in the film that is designated as 0 degrees and directions at 45 degrees, 90 degrees and 135 degrees relative to the specific direction in the clockwise direction, and (2) the difference between the maximum value and the minimum value of the respective stress at 15% elongation as determined by the uniaxial tensile test in the four directions is 40 MPa or less.

公开(公告)号：US10286597B2

公开(公告)日：2019-05-14

申请号：US15762652

申请日：2016-10-03

Applicant: UNITIKA LTD.

Inventor： Ken Akamatsu ,  Masami Matsumoto

IPC: B32B7/12 ,  B32B15/08 ,  B32B15/09 ,  B32B27/36 ,  B32B37/12 ,  B29C48/08 ,  B29C55/12 ,  B29C55/14 ,  B29D7/01 ,  C08L67/02 ,  C08L67/03 ,  B29C48/00 ,  C08J5/18 ,  B29C47/00 ,  B29C55/00 ,  B29C71/02 ,  B29K67/00 ,  B29K509/02 ,  B29L7/00

Abstract: The present invention provides a polyester film, wherein an arbitrary direction on the film surface is defined to have an angle of 0°, and three directions are defined to have angles of 45°, 90°, and 135°, respectively, clockwise from the 0° direction, and the difference between the maximum value and the minimum value of the stresses at 5% elongation in the four directions is 50 MPa or less, the difference between the maximum value and the minimum value of the stresses at 15% elongation in the four directions is 70 MPa or less, and the modulus of elasticity in any one of the four directions falls within a range from 2.0 to 3.5 GPa.

公开(公告)号：US20150298879A1

公开(公告)日：2015-10-22

申请号：US14646287

申请日：2013-11-27

Applicant: UNITIKA LTD.

Inventor： Kazunari Nanjo ,  Toshiya Hamada ,  Masami Matsumoto ,  Nobuhiro Tanaka

IPC: B65D75/36 ,  B32B27/34 ,  B32B15/088 ,  B65D65/38 ,  B32B15/20

CPC classification number: B65D75/36 ,  B32B15/088 ,  B32B15/20 ,  B32B27/34 ,  B32B2307/31 ,  B32B2307/518 ,  B32B2307/54 ,  B32B2307/7242 ,  B32B2307/7265 ,  B32B2307/738 ,  B32B2439/40 ,  B32B2439/80 ,  B65D65/38

Abstract: The packaging material for cold forming of the present invention includes a polyamide resin film biaxially stretched by a tenter method and an aluminum foil provided on one surface of the polyamide resin film and integrated with the polyamide resin film. The distortion of the polyamide resin film caused by applying thereto a tension corresponding to the tensile break tension of the aluminum foil is 20% or more and 45% or less. Herewith, it is possible to provide a packaging material for cold forming excellent in cold formability, capable of suppressing the breakage of the aluminum foil during the cold forming in the case where the polyamide resin film biaxially stretched by the tenter method is used.

Abstract translation: 本发明的冷成型用包装材料包括通过拉幅机法双轴拉伸的聚酰胺树脂膜和设置在聚酰胺树脂膜的一个表面上并与聚酰胺树脂膜一体化的铝箔。 通过施加与铝箔的拉伸断裂张力相对应的张力引起的聚酰胺树脂膜的变形为20％以上且45％以下。 因此，可以提供一种冷成型性优异的冷成型包装材料，其能够在使用通过拉幅机双向拉伸的聚酰胺树脂膜的情况下，抑制冷成型时铝箔的断裂。

公开(公告)号：US20150183204A1

公开(公告)日：2015-07-02

申请号：US14414950

申请日：2013-07-23

Applicant: UNITIKA LTD.

Inventor： Kazunari Nanjo ,  Toshiya Hamada ,  Masami Matsumoto

IPC: B32B38/00 ,  C08J5/18 ,  B32B15/09

CPC classification number: B32B38/0012 ,  B29C55/16 ,  B32B7/12 ,  B32B15/09 ,  B32B15/18 ,  B32B15/20 ,  B32B27/36 ,  B32B37/12 ,  B32B2038/0028 ,  B32B2250/03 ,  B32B2307/31 ,  B32B2307/518 ,  B32B2307/54 ,  B32B2367/00 ,  B32B2439/00 ,  B32B2457/10 ,  B32B2581/00 ,  C08J5/18 ,  C08J2367/02 ,  C08J2367/03 ,  C08J2467/02 ,  C08J2467/03 ,  C08L67/02 ,  Y10T428/2848

Abstract: A polyester film for cold forming including polybutylene terephthalate (PBT) and polyethylene terephthalate (PET), wherein a mass ratio (PBT/PET) between PET and PET is 30/70 to 80/20.

Abstract translation: 一种用于冷成型的聚酯膜，包括聚对苯二甲酸丁二醇酯（PBT）和聚对苯二甲酸乙二醇酯（PET），其中PET和PET之间的质量比（PBT / PET）为30/70至80/20。