Functional sheet

Details Functional sheet Functional sheet

B - Operations, Transporting

32

B

B32B 27/00 (2006.01)

Patent

CA 2729831

The invention is directed to a functional sheet, to a method for preparing said sheet, to a packaging material and to the use of said packaging material. The functional sheet of the invention comprises a porous polymeric carrier having a porosity of at least 60 %, preferably at least 80 %, more preferably at least 90 %, wherein said polymeric carrier comprises one or more functional compounds, which functional compound provides said sheet with at least one function selected from sensing, scavenging and releasing and wherein the polymeric carrier comprises one or more polyolefins and the average pore size of the polymeric carrier is at least 0.11 µm.

L'invention porte sur une feuille fonctionnelle, sur un procédé de préparation de ladite feuille, sur un matériau d'emballage et sur l'utilisation dudit matériau d'emballage. La feuille fonctionnelle de l'invention comprend un support polymère poreux ayant une porosité d'au moins 60 %, de préférence d'au moins 80 %, de préférence encore d'au moins 90 %, ledit support polymère comprenant un ou plusieurs composés fonctionnels, lequel composé fonctionnel confère à ladite feuille au moins une fonction choisie parmi la détection, la fixation et la libération, le support polymère comprenant une ou plusieurs polyoléfines, et la taille moyenne des pores du support polymère étant d'au moins 0,11 µm.

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