Food or edible material: processes – compositions – and products – Packaged or wrapped product – Packaged product is lacteal derived
Patent
1995-06-02
1996-04-09
Szekely, Peter A.
Food or edible material: processes, compositions, and products
Packaged or wrapped product
Packaged product is lacteal derived
206484, 2064842, 2065242, 2065244, 2065246, 426106, 426127, 426323, 426397, 426415, B65D 8572, B65D 8580, B65D 7504, B65B 5500
Patent
active
055059694
ABSTRACT:
A barrier film composition can comprise a thermoplastic web comprising a thermoplastic polymer and a dispersed cyclodextrin composition having substituents that compatibilize the cyclodextrin in the film. The thermoplastic/cyclodextrin film obtains substantial barrier properties from the interaction between the substituted cyclodextrin in the film material with a permeant. The substituents on the cyclodextrin molecule causes the cyclodextrin to be dispersible and stable in the film material resulting in an extrudable thermoplastic. Such materials can be used as a single layer film material, a multilayer film material which can be coated or uncoated and can be used in structural materials wherein the thermoplastic is of substantial thickness resulting in structural stiffness. The cooperation between the cyclodextrin and the thermoplastic polymer provides barrier properties to a web wherein a permeant can be complexed or entrapped by the cyclodextrin compound and held within the film preventing the permeant from passing through the film into the interior of a film, an enclosure or container. The permeant can comprise a variety of well known materials such as moisture, aliphatic or aromatic hydrocarbons, monomer materials, off flavors, toxic compounds etc.
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Beaverson Neil J.
Wood Willard E.
Aspen Research Corporation
Szekely Peter A.
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