Extrusion-coated lidding foil for push-through blister...

B - Operations – Transporting – 32 – B

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Details

B32B 15/08 (2006.01) B29C 47/02 (2006.01) B32B 15/20 (2006.01) B65D 75/36 (2006.01) C08K 3/00 (2006.01)

Patent

CA 2716988

An extrusion-coated lidding foil for blister packaging particularly suitable for push-through pharmaceutical and food blister packaging. The lidding foil includes a foil layer on which one or more tie layer and one or more sealant layer, one or both of which include an embrittling agent mixed therein, are extrusion coated resulting in a lidding foil having push-through ability. The push-through ability of the lidding foil is characterized by a Mullen burst strength of about 10 psi to about 30 psi and an MD tear strength of about 30 to about 100 grams- force.

L'invention porte sur une feuille opercule revêtue par extrusion pour emballage-coque. La feuille est particulièrement appropriée pour un emballage-coque pharmaceutique et alimentaire enfonçable. La feuille opercule comporte une couche en feuille sur laquelle sont revêtues par extrusion une ou plusieurs couches de liaison et une ou plusieurs couches de scellement, dont une ou les deux renferment un agent cassant, ce qui forme une feuille opercule énonçable. Lenfonçabilité de la feuille opercule est caractérisée par une résistance à l'éclatement de Mullen d'environ 10 livres à environ 30 livres par pouce carré et par une résistance à la déchirure dans le sens machine d'environ 30 à environ 100 grammes-force.

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