C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 3/28 (2006.01) B29C 71/04 (2006.01) B32B 27/16 (2006.01) C08K 3/04 (2006.01) C08K 7/24 (2006.01)
Patent
CA 2618887
A method of increasing the gas transmission rate of a packaging film comprises providing a packaging film that comprises at least about 0.001 weight % of fullerene material selected from spherical fullerenes, bowl-shaped fullerenes, multi-walled carbon nanotubes, carbon nanocones, and carbon nano-onions. The packaging film is exposed to an amount of radiation energy effective to increase the oxygen transmission rate of the packaging film by at least about 100 cc (STP)/m2. day (1 atm, 0% RH, 23~C).
La présente invention concerne un procédé permettant d'augmenter la vitesse de perméation de gaz d'un film d'emballage. A cet effet, on prend u film d'emballage comprenant pour au moins 0,001 % de sa masse des fullerènes tels que fullerènes sphériques, fullerènes en cuvette, nanotubes de carbone multiparoi, des nanocones de carbone, et des nano-oignons. Le film d'emballage est exposé à un rayonnement capable d'augmenter la vitesse de perméation de l'oxygène du film d'emballage d'au moins environ 100 cc (STP)/m2. jour (1 atm, 0 % RH, 23°C).
Cryovac Inc.
Smart & Biggar
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