发明名称 Easily tearable laminated film and method of manufacturing the same
摘要 Disclosed is an easily tearable laminated film suitable as a sealed pouch or a lid of a sealed container, which can be easily and reliably torn along a direction of any specific shape such as a linear shape, an annular shape, or a V shape in opening the pouch or the lid. This easily tearable laminated film includes a porous organic resin film, a heat-fusible resin film, and an adhesive layer interposed between these films. The porous organic resin film consists of a rigid organic resin film whose entire surface has a large number of fine through and/or non-through pores, and has a higher tearability than that of an organic resin film having no pores. The porous organic resin film and the heat-fusible resin film are bonded with a higher strength than the tear strength of the porous organic resin film in a tear region and with a strength not higher than the tear strength of the porous organic resin film in an adjoining region adjacent to the tear region.
申请公布号 US5654082(A) 申请公布日期 1997.08.05
申请号 US19950408821 申请日期 1995.03.23
申请人 KAGAWA, SEIJI 发明人 KAGAWA, SEIJI
分类号 B65D33/00;B32B5/18;B32B7/02;B32B7/04;B32B27/00;B65D65/26;B65D65/40;(IPC1-7):B32B7/02;B32B5/24 主分类号 B65D33/00
代理机构 代理人
主权项
地址