C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 5/16 (2006.01) B32B 27/18 (2006.01) B65D 65/38 (2006.01) B65D 65/40 (2006.01) C08J 3/20 (2006.01) C08L 1/00 (2006.01) C08L 23/06 (2006.01) C08L 25/06 (2006.01) C08L 27/06 (2006.01) C08L 29/04 (2006.01) C08L 67/02 (2006.01) C08L 101/00 (2006.01) D21H 17/24 (2006.01) D21H 27/10 (2006.01)
Patent
CA 2456154
The present invention relates to a packaging material having improved barrier properties, the material comprising a matrix material and uniformly dispersed in the matrix material, an effective absorbing amount of a cyclodextrin material, wherein the cyclodextrin comprises an a-cyclodextrin, a .szlig.- cyclodextrin, a .gamma.-cyclodextrin or mixtures thereof, having pendant moieties or substituents that render the cyclodextrin compatible with the matrix material. It has been found that it is possible to regulate or optimize the barrier and trapping properties of a cyclodextrin-containing material by varying the moisture content in the cyclodextrin prior to incorporation into the matrix material.
L'invention concerne un matériau d'emballage présentant de meilleures propriétés barrières, ledit matériau comportant un matériau de base et, uniformément dispersée dans le matériau de base, une quantité absorbante efficace d'un matériau à base de cyclodextrine, la cyclodextrine comprenant .alpha.-cyclodextrine, .beta.-cyclodextrine, .gamma.-cyclodextrine ou un mélange de celles-ci, ayant des fractions pendantes ou des substituants qui rendent la cyclodextrine compatible avec le matériau de base. Selon l'invention, on peut réguler ou optimiser les propriétés barrières ou de piégeage d'un matériau contenant de la cyclodextrine en faisant varier la teneur en humidité de la cyclodextrine avant de l'incorporer dans le matériau de base.
Beaverson Neil
Wood Will
Borden Ladner Gervais Llp
Cellresin Technologies Llc
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