Stock material or miscellaneous articles – Hollow or container type article – Cellular material derived from plant or animal source
Patent
1982-12-15
1985-02-26
Kittle, John E.
Stock material or miscellaneous articles
Hollow or container type article
Cellular material derived from plant or animal source
206432, 383113, 383908, 428520, B65D 6500
Patent
active
045017808
ABSTRACT:
A heat sealing layer is provided for multiply tubular film preferably of the type having an inner shrink layer of an irradiatively cross-linked ethylene vinyl acetate copolymer, a core barrier layer of vinylidene chloride-vinyl chloride copolymer, and an outer abuse layer of an ethylene vinyl acetate copolymer, the sealing layer being melt bonded onto the shrink layer and being composed of a propylene ethylene random copolymer. Heat seals formed in making bags from the improved film demonstrate enhanced high temperature strength and grease resistance. An associated method for making the tubular film is also provided.
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Caldwell Karl N.
Voso Philip T.
Walters Johnnie J.
Kittle John E.
Lee, Jr. William D.
Quatt Mark B.
Seidleck James J.
Toney John J.
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