发明授权
US5858490A Film formed from polyethylene-2,6-naphthalate resin, process for
producing said film and package using said film
失效
由聚2,6-萘二甲酸乙二醇酯树脂形成的膜，使用所述膜制造所述膜和包装的方法
- 专利标题： Film formed from polyethylene-2,6-naphthalate resin, process for producing said film and package using said film
- 专利标题（中）： 由聚2,6-萘二甲酸乙二醇酯树脂形成的膜，使用所述膜制造所述膜和包装的方法
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申请号： US379655申请日： 1995-04-07
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公开(公告)号： US5858490A公开(公告)日： 1999-01-12
- 发明人: Shinichiro Mori , Katsuhiko Sasada , Kayo Hasegawa , Yasuhiro Harada , Chikao Kumaki , Masahisa Yamaguchi , Yasuki Suzuura , Rikiya Yamashita , Toshiyuki Suzuki , Isao Inoue
- 申请人： Shinichiro Mori , Katsuhiko Sasada , Kayo Hasegawa , Yasuhiro Harada , Chikao Kumaki , Masahisa Yamaguchi , Yasuki Suzuura , Rikiya Yamashita , Toshiyuki Suzuki , Isao Inoue
- 申请人地址： JPX JPX
- 专利权人： NKK Corporation,DAI Nippon Printing Co., Ltd.
- 当前专利权人： NKK Corporation,DAI Nippon Printing Co., Ltd.
- 当前专利权人地址： JPX JPX
- 优先权： JPX5-165169 19930610; JPX5-188675 19930702; JPX5-328089 19931224
- 主分类号： B29C55/00
- IPC分类号： B29C55/00 ; B32B27/08 ; B32B27/36 ; C08G63/20 ; C08J5/18 ; C08L67/02 ; B32B27/06
摘要：
Packaging films for press-through packaging comprise a polyethylene-2,6-naphthalate film having an intrinsic viscosity .eta. of 0.31 to 0.6 wherein the film is: (1) stretched in mutually perpendicular directions each with draw ratios of 1 to 3 times; or (2) stretched in the longitudinal direction at draw ratios of 3 to 6 times and in the transverse direction at draw ratios of 1 to 1.8 times. The films have a thickness of 5-150 .mu.m and may be incorporated into multi-layer cover films comprising the polyethylene-2,6-naphthalate film, a barrier layer, a reinforcing layer, and a sealing or adhesive layer.
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