Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...
Patent
1995-03-23
1997-08-05
Lee, Helen
Stock material or miscellaneous articles
Structurally defined web or sheet
Including components having same physical characteristic in...
42831111, 4283171, 4283184, 4283199, B32B 702, B32B 524
Patent
active
056540825
ABSTRACT:
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.
REFERENCES:
patent: 3559800 (1971-02-01), Butler
patent: 4039364 (1977-08-01), Rasmussen
patent: 4735335 (1988-04-01), Torterotot
LandOfFree
Easily tearable laminated film and method of manufacturing the s does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Easily tearable laminated film and method of manufacturing the s, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Easily tearable laminated film and method of manufacturing the s will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1073556