Container having improved organoleptic barrier properties

Details Container having improved organoleptic barrier properties Container having improved organoleptic barrier properties

C - Chemistry, Metallurgy

08

K

C08K 5/15 (2006.01) B01D 69/14 (2006.01) B01D 71/26 (2006.01) B01D 71/48 (2006.01) B65D 1/02 (2006.01) C08F 236/10 (2006.01) C08L 9/06 (2006.01) C08L 23/08 (2006.01) C08L 67/02 (2006.01)

Patent

CA 2456167

The present invention relates to a container having improved barrier properties, the container comprising a thermoplastic polymer; and having uniformly dispersed in the polymer and effective absorbing amount of cyclodextrin material; wherein the cyclodextrin is free of an inclusion complex compound and the cyclodextrin comprises an a-cyclodextrin, a .szlig.- cyclodextrin, a -cyclodextrin or mixtures thereof, having pendant moieties or substituents that render the cyclodextrin compatible with the thermoplastic polymer whereby 20 to 45 % of the hydroxyl groups of the cyclodextrin material, H is replaces by a substituent.

La présente invention concerne un récipient qui possède des propriétés barrière organoleptiques. Ce récipient comprend un polymère thermoplastique et une quantité absorbante efficace de matériau cyclodextrine est dispersée uniformément dans ce polymère. Cette cyclodextrine est exempte de composé complexe d'insertion et elle comprend une alpha cyclodextrine, une alpha bêta cyclodextrine, une alpha .gamma. cyclodextrine ou des mélanges de celles-ci. Cette cyclodextrine possède des fractions pendantes ou des substituants qui la rendent compatible avec le polymère thermoplastique, sachant que dans 20% à 45% des groupes hydroxyle de ce matériau cyclodextrine, H est remplacé par un substituant. .

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