Method of making laminated multi-layered film enclosures

Details Method of making laminated multi-layered film enclosures Method of making laminated multi-layered film enclosures

1981-12-02

1984-05-22

Gallagher, John J.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156243, 15624413, 1563082, 1563084, 156324, 428 35, 428 36, 428518, 493189, 493193, 493293, 493933, 383116, 383121, B29C 1700, B32B 3120

Patent

active

044500289

ABSTRACT:
Multi-layered enclosures are provided which include extruded tubing laminated between two extruded sheets of coextruded film in order to rapidly produce an unusually tough enclosure having longitudinal side walls that are free of internal seams while providing superior fluid barrier properties. When desired, the multi-layered enclosure is transformed into a multi-layered bag or pouch by sealing the multi-layered enclosure together along one or more locations interconnecting the longitudinal or side edges of the multi-layered enclosure to thereby cross seal together the sheets, the tubing, and the internal surfaces of the tubing.

REFERENCES:
patent: 3031332 (1962-04-01), Rothacker
patent: 3122297 (1964-02-01), Sachs
patent: 3204825 (1965-09-01), Underwood
patent: 3329549 (1967-07-01), Vilutis
patent: 3519513 (1970-07-01), Wilharm
patent: 3743562 (1973-07-01), Phipps

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