Peelable heat seals and method for making same

Details Peelable heat seals and method for making same Peelable heat seals and method for making same

B - Operations, Transporting

65

D

B65D 65/40 (2006.01) A61J 1/10 (2006.01) B32B 27/32 (2006.01)

Patent

CA 2195268

A heat sealed package including a first package wall having an inner surface and an outer surface and a second package wall having an inner surface and an outer surface. The first package wall is formed of spunbonded olefin. The second package wall includes an inner layer laminated to an outer layer. The inner layer is formed of a blend of polybutylene and one other constituent. The other constituent preferably comprises a 2% ethylene vinyl acetate copolymer of polyethylene. The inner layer forms the inner surface of the second package wall and is heat sealed to the inner surface of the first package wall to form an object receiving chamber. The first package wall is joined to the second package wall by the heat seal such that the first package wall can be peelably removed from the second package wall without tearing of the first package wall.

mballage thermoscellé comprenant un premier emballage présentant une surface interne et une surface externe ainsi qu'un deuxième emballage présentant une surface interne et une surface externe. Le premier emballage est formé d'oléfine filée-liée. Le deuxième emballage comprend une couche intérieure adhérée à une couche extérieure. La couche intérieure est composée d'un mélange de polybutylène et d'un autre composant. L'autre composant comprend de préférence un copolymère éthylène vinyle acétate de polyéthylène 2 %. La couche interne forme la surface interne du deuxième emballage, sous l'action du thermoscellage, de telle sorte que le premier emballage peut être pelé du deuxième emballage sans qu'il y ait déchirure du premier emballage.

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