Laminated multi-layered film enclosures

Details Laminated multi-layered film enclosures Laminated multi-layered film enclosures

1984-01-26

1985-09-03

Kittle, John E.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

383116, 383121, 156198, 15624413, 1563084, 493189, 493193, B32B 3126, B29C 1700

Patent

active

045392366

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
patent: 3939972 (1976-02-01), Mayworm

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