Method of making a heat-sealable oriented polypropylene film

Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor

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15624418, 428516, 428520, 428910, 264291, 156182, 264241, 2642106, 2642107, 2642902, B32B 2708

Patent

active

041982568

ABSTRACT:
A heat-sealable oriented plastic film comprising an oriented polypropylene film having on at least one surface a heat-sealable layer comprising a predominantly linear random copolymer of ethylene and up to 12 mole percent of at least one further alpha-olefin having at least three carbon atoms per molecule.

REFERENCES:
patent: 3508944 (1970-04-01), Henderson et al.
patent: 3540979 (1970-11-01), Hughes
patent: 3671383 (1972-06-01), Sakata et al.
patent: 4117193 (1978-09-01), Tsuchiya et al.
patent: 4125662 (1978-11-01), Weiner et al.

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