Oil resistant packaging
View Patent ↗Oil resistant package material and packages prepared therefrom have cyclodextrin incorporated in or adjacent to a film layer of the package to reduce the permeation of oil through the package material, and particularly out of the package. The film layer comprises a polymer that coordinates or bonds with a cyclodextrin compound in an amount sufficient to reduce the permeation of oil through the film layer as compared to a like film layer that does not contain cyclodextrin.
1. An oil resistant package material comprising a film layer comprising a polymer coordinated or bonded with a cyclodextrin compound in an amount sufficient to reduce the permeation of oil through the film layer as compared to a like film layer that does not contain cyclodextrin wherein the film layer is a water-based adhesive and comprises a vinyl acetate copolymer and starch.
2. The package material of claim 1 , wherein the cyclodextrin is alpha cyclodextrin.
3. The package material of claim 1 , wherein the cyclodextrin comprises an inclusion complex.
4. The package material of claim 3 , wherein the inclusion complex is formed of the cyclodextrin with a glyceride having at least one fatty acid ester functionality.
5. The package material of claim 3 , wherein the inclusion complex is formed of the cyclodextrin with alpha monoglycerol stearate.
6. A product package comprising
a) a closed package; and
b) an oil or fat containing product disposed within the package;
wherein the package comprises the package material of claim 1 .
7. A packaged microwave popcorn product comprising
a) a closed microwave popcorn package;
b) unpopped popcorn kernels disposed within the package; and
c) an oil/fat slurry disposed within the package; wherein the package comprises the package material of claim 1 .
8. The package material of claim 1 , wherein the cyclodextrin is pre-hydrated prior to assembly of the package material.
9. The package material of claim 8 wherein the pre-hydrated cyclodextrin comprises cyclodextrin and water at a weight ratio from 1:10 to 10:1.
10. The package material of claim 8 wherein the pre-hydrated cyclodextrin comprises cyclodextrin and water at a weight ratio from 5:1 to 1:5.
11. The package material of claim 8 wherein the pre-hydrated cyclodextrin comprises cyclodextrin and water at a weight ratio from 2:1 to 1:2.
12. The package material of claim 1 wherein the cyclodextrin is hydrated in situ in the package.