B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
154/140, 18/978,
B32B 27/30 (2006.01) B29C 35/08 (2006.01) B29C 47/06 (2006.01) B29C 55/02 (2006.01) B29C 55/28 (2006.01) B29C 61/06 (2006.01) B32B 27/08 (2006.01) B65D 65/40 (2006.01) C08J 3/24 (2006.01)
Patent
CA 1333269
A heat shrinkable cylindrical laminated film having a polyvinylidene chloride type resin (I) as an oxygen gas barrier core layer, on the both surface side of which 1 or 2 resin layers are arranged respectively and consisting of 3 - 5 layers with total, characterized in that the cylindrical exterior surface resin layer on said layer (I) comprises a crosslinked polyolefin type resin layer (II) having a gel fraction [x] at the outer- most layer of 25 - 70% by weight, a geld fraction [y] at the surface layer in the side of the layer (I) of 40% by weight or less and a gradient of gel fraction represented by [y/x] of 0.6 or less and the joint of said layers (I) and (II) comprises a laminate of a joint in a state denaturated by electron rays.
540094
Ishio Tadashi
Matsumura Daisuke
Asahi Kasei Life & Living Corporation
Goudreau Gage Dubuc
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