发明申请
- 专利标题: MULTILAYERED STRETCHED FILM WITH BARRIER PROPERTY
- 专利标题(中): 带有障碍物的多层拉伸膜
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申请号: US13160898申请日: 2011-06-15
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公开(公告)号: US20110315590A1公开(公告)日: 2011-12-29
- 发明人: Norio Uehara , Hiroyuki Yoshizaki , Naoyuki Maruichi
- 申请人: Norio Uehara , Hiroyuki Yoshizaki , Naoyuki Maruichi
- 申请人地址: JP Ayabe-shi
- 专利权人: GUNZE LIMITED
- 当前专利权人: GUNZE LIMITED
- 当前专利权人地址: JP Ayabe-shi
- 优先权: JP2009-253680 20091105
- 主分类号: B65D30/10
- IPC分类号: B65D30/10 ; B29C55/12 ; B32B7/12 ; B32B1/02 ; B32B15/08 ; B32B27/08 ; B32B7/02
摘要:
[Object] An object of the invention is to provide a multilayer stretched film with barrier property that is free from deterioration of barrier properties attributable to dimensional change caused by moisture absorption, and bending, etc.[Method for Achieving the Object] A multilayer stretched film with barrier property obtained by biaxially stretching a multilayer laminate comprising at least two layers, namely, a polyester-based resin layer (Layer A) and a polyamide-based resin layer (Layer B) to obtain a biaxially stretched multilayer film; and providing a deposition layer (Layer C) on at least one surface of the biaxially stretched multilayer film; Layer A containing a crystalline polyester; Layer B containing 70 to 99 wt % of aliphatic polyamide and 1 to 30 wt % of aromatic polyamide; and Layer C containing an inorganic substance. [Selected Drawings] None
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