Stock material or miscellaneous articles – Hollow or container type article – Nonself-supporting tubular film or bag
Patent
1997-03-27
1999-11-16
Thibodeau, Paul
Stock material or miscellaneous articles
Hollow or container type article
Nonself-supporting tubular film or bag
428 354, 428 366, 4284758, 4284769, 428483, 428508, 428516, 428518, B32B 2732, B32B 102
Patent
active
059853883
ABSTRACT:
A multi-layer sealant film having a high transparency, which comprises: (1) a high-density polyethylene layer comprising a high-density polyethylene having a melting point of not less than 122.degree. C. and a crystallization temperature of not less than 110.degree. C.; and (2) a polyolefin layer comprising a polyolefin having a crystallization temperature of not more than 109.degree. C., wherein the multi-layer sealant film is produced by co-extruding the high-density polyethylene and the polyolefin to form a multi-layer film, and the high-density polyethylene layer is used as a heat seal layer. Also disclosed are a multi-layer packaging film comprising the multi-layer sealant film having a transparent substrate on the side opposite to layer (1), and a pouch obtained by heat-sealing the packaging film so that layer (1) comes to be the innermost layer thereof.
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Ezaki Tomohiko
Tomita Miyuki
Yotsuyanagi Junji
Showa Denko K.K.
Tarazano D. Lawrence
Thibodeau Paul
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