Collapsible thermoplastic tubular container and method of produc

Details Collapsible thermoplastic tubular container and method of produc Collapsible thermoplastic tubular container and method of produc

1975-06-23

1976-06-08

Whitby, Edward G.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156258, 156244, 156262, 156306, 264152, 264DIG41, B29C 2702

Patent

active

039620069

ABSTRACT:
A tubular container having a collapsible body welded to a head member, and a method of producing the same.
The collapsible body and the head member are made of laminated films having impermeable layers therein, the impermeable layers of the body and the head member abutting or overlapping each other to form an impermeable layer of the shoulder portion thereby minimizing penetration or permeation of oil components, perfumes, etc. contained in the contents of the container or infiltration of oxygen into the container.
The method of producing the aforementioned container comprises the steps of continuously extruding thermoplastic resin with an impermeable layer, cutting the resin to form a disc, welding the open end of the sleeve to close it, and forming a head member by pressing.

REFERENCES:
patent: 3074837 (1963-01-01), Flax
patent: 3700513 (1972-10-01), Haberhauer et al.

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