B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 27/08 (2006.01) B32B 7/02 (2006.01) B32B 7/06 (2006.01) B32B 27/32 (2006.01)
Patent
CA 2265865
The present invention is a multi-layer film which has an improved composite structure for providing hermetic seals to packages manufactured in high speed packaging apparatus. The structure of the multi-layer film of the present invention includes a main substrate and a sealant layer. The sealant layer, in turn, includes two components, an intermediate layer which has the primary function of compliance during sealing, and a sealing layer which has the primary function of providing adhesivity to the completed seal. As a result of this invention, high strength hermetic seals can be provided to multi-layer films effectively and efficiently, and hermetic seals are provided with the ability to be peeled open without destruction of several layers of the film.
L'invention concerne un film multicouches présentant une structure composite améliorée pour fournir des fermetures hermétiques pour des emballages fabriqués dans un appareil d'emballage ultra-rapide. La structure du film multicouches selon l'invention comprend un substrat principal et une couche d'étanchéité. Cette dernière couche comprend, à son tour, deux composants, à savoir, une couche intermédiaire dont la fonction essentielle est d'assurer une élasticité pendant la fermeture, et une couche d'étanchéité qui a pour rôle principal d'assurer l'adhésivité de la fermeture hermétique terminée. L'invention fournit ainsi des fermetures hermétiques de grande résistance pour des films multicouches, et des fermetures hermétiques sont ainsi obtenues qui peuvent se décoller sans détruire les nombreuses couches du film.
Donovan Kevin Michael
Kong Dan-Cheng
Liu Leland Li-Jen
Sexton Donald Francis
Su Tien-Kuei
Gowling Lafleur Henderson Llp
Mobil Oil Corporation
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