B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 5/18 (2006.01) B32B 7/04 (2006.01) B32B 27/08 (2006.01) B65D 65/40 (2006.01) B32B 31/14 (1995.01)
Patent
CA 2145447
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.
Kagawa Seiji
Mccarthy Tetrault Llp
LandOfFree
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