Process for producing liquid-container material

Details Process for producing liquid-container material Process for producing liquid-container material

1992-05-27

1994-03-22

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

15624423, 15624424, 26421112, 26421113, 26421118, B29C 4706

Patent

active

052960706

ABSTRACT:
A process for producing a liquid-container material that includes a thermoadhesive resin film, a substrate sheet having a thin-film layer of an inorganic compound, such as a silicon oxide, and a paper substrate. The thermoadhesive resin film is formed by melt-extruding a thermoadhesive resin from an extruder die, and then cooled to a temperature at which the thermoadhesive properties inherent in the thermoadhesive resin film can be retained and at which no crack is produced in the thinfilm layer of an inorganic compound when the thermoadhesive resin film is laminated to the substrate sheet. The cooled thermoadhesive resin film is laminated to the substrate sheet to form a laminate, which is then laminated to the paper substrate. The thermoadhesive resin film may preferably include a non-adsorptive resin layer and a thermoadhesive resin layer. In this instance, the non-adsorptive resin layer is so provided as to be on the outside of the liquid-container material.

REFERENCES:
patent: 3380876 (1968-04-01), Rusher
patent: 4729926 (1988-03-01), Koteles et al.
patent: 4802943 (1989-02-01), Gibbons
patent: 4806398 (1989-02-01), Martin
patent: 5059459 (1991-10-01), Huffman

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