Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Adhesive outermost layer
428518, 428520, 428900, B32B 2700
Heat sealable, composite film comprising a polypropylene film, at least one adhesion layer, at least one gas-barrier layer and at least one heat-sealing layer of a linear statistical ethylene copolymer of low density.
patent: 3645992 (1972-02-01), Elston
patent: 4011382 (1977-03-01), Levine et al.
patent: 4547433 (1985-10-01), Ohya et al.
patent: 4617241 (1986-10-01), Mueller
B/o/ hner J/u/ rgen
Wolff Walsrode Aktiengesellschaft
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