Packaging material
AssigneeCellresin Technologies, LLC
InventorsNeil Beaverson, Will Wood
Life of this patent
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Abstract
Described is 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 α-cyclodextrin, a β-cyclodextrin, a γ-cyclodextrin or mixtures thereof, having pendant moieties or substituents that render the cyclodextrin compatible with the matrix material. It is believed that it may be 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.
Claims33
A packaging material having improved barrier properties, the packaging material comprising:
- (a) a matrix material;
- and
- (b) an effective absorbing amount of a cyclodextrin material;
- wherein the cyclodextrin material is uniformly dispersed in the matrix material;
- wherein the cyclodextrin material is free of an inclusion complex compound;
- wherein the cyclodextrin material comprises at least one element selected from the group consisting of α-cyclodextrin, β-cyclodextrin and γ-cyclodextrin;
- wherein the cyclodextrin material comprises at least one element having pendant moieties or substituents that render the cyclodextrin compatible with the matrix material;
- and wherein the cyclodextrin material has a moisture content of more than 0.3 wt.-% based on the cyclodextrin material.
A method for manufacturing a packaging material comprising the steps of:
- providing a matrix material;
- and
- dispersing a cyclodextrin material having a moisture content of more than 0.3 wt.-%, based on the cyclodextrin material in the matrix material.
A packaging material having improved barrier properties and a reduced content of volatile impurities, the material comprising:
- (a) a matrix material;
- and
- (b) an effective absorbing amount of a cyclodextrin material;
- wherein the cyclodextrin material is uniformly dispersed in the matrix material;
- wherein the cyclodextrin material is free of an inclusion complex compound;
- wherein the cyclodextrin material comprises at least one element selected from the group consisting of α-cyclodextrin, β-cyclodextrin and γ-cyclodextrin;
- wherein the cyclodextrin material comprises at least one element having pendant moieties or substituents that render the cyclodextrin compatible with the matrix material;
- and wherein the cyclodextrin material has a moisture content of about 0 wt.-% based on the cyclodextrin material.
A method for manufacturing a packaging material comprising the steps of:
- providing a matrix material;
- and
- dispersing a cyclodextrin material having a moisture content of about 0 wt.-%, based on the cyclodextrin material in the matrix material.
Dependencies are inferred from the claim text.