Laminate for making tubes

Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Physical dimension specified

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428 35, 428347, 428516, 428520, 428461, 222107, 426127, B65D 3508, B32B 1508, B32B 2708

Patent

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045392595

ABSTRACT:
The stiffness and deadfold properties of laminates used to make toothpaste tubes are improved by including a layer of high density polyethylene as one of the layers of the laminate. The use of high density polyethylene obviates the need to use a layer of paper or thick foil to provide stiffness and deadfold. The laminates containing high density polyethylene also have excellent strength and other properties which make them especially suitable for making tubes used to package toothpaste or other substances.

REFERENCES:
patent: 4257536 (1981-03-01), Hilmar
patent: 4265948 (1981-05-01), Hayes et al.
patent: 4389438 (1983-06-01), Ohsuki et al.
patent: 4418841 (1983-12-01), Eckstein

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