Collapsible dispensing tube with an orifice sealed with multi-la

Details Collapsible dispensing tube with an orifice sealed with multi-la Collapsible dispensing tube with an orifice sealed with multi-la

1983-09-15

1986-06-17

Rolla, Joseph J.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

222 81, 215232, B29C 2700

Patent

active

045954348

ABSTRACT:
A collapsible dispensing tube has a multi-layer sheet material sealed over its dispensing orifice to provide a hermetically sealed tube. The multi-layer sealant sheet comprises two layers of metal foil separated by a polymer layer firmly adhered to the metal foil layers. A polymeric layer is adhered to the outer surface of one of the metal foil layers and serves to seal the tube orifice. The laminated sheet may be sealed across the orifice by the application of radio-frequency energy.

REFERENCES:
patent: 2592806 (1952-04-01), Jeffery
patent: 2671577 (1954-03-01), Remington et al.
patent: 2976224 (1976-08-01), Ericson et al.
patent: 2982457 (1961-05-01), D'Alelio
patent: 3791906 (1974-02-01), Farkas
patent: 4442129 (1984-04-01), Niwa et al.

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