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US 2010/0166925 A1Published application
Films comprising a liquid-absorbant inner layer and an impermeable outer layer
AssigneeE. I. Du Pont de Nemours and Company
InventorsI-Hwa Lee, James Michael McKenna, Raghuram Narumanchi
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Abstract
Films comprising a liquid-absorbant layer and an impermeable layer are provided. Processes for manufacturing these films is also provided. The films are suitable for preparation of tubular casings and shrinkbags, in particular, casings for smoked foodstuffs. Also described are foodstuffs processed in the tubular casings.
Claims11
A foodstuff that is contained within an article, the article comprising a film laminate, wherein the film laminate comprises (i) a liquid absorptive layer useful for imparting flavor and color evenly to meat, and (ii) an impermeable barrier layer wherein:
- (A) the liquid absorptive layer comprises a block copolyether ester polymer;
- and
- (B) the impermeable barrier layer comprises a structure selected from the group consisting of single film layers, multilayer films and laminates, the barrier layer comprising:
- (a) at least one layer comprising a polymer, wherein the polymer is selected from the group consisting of:
- polyamides;
- mixtures of polyamides;
- ethylene vinyl alcohol copolymers;
- polyvinylidene chloride;
- polyolefins;
- and mixtures of any of these;
- and (b) optionally at least one tie layer;
- and wherein the liquid absorptive layer has a moisture vapor transmission rate of from about 1200 to about 20,000 g 25 micron/m2 24 hrs.
9 more elements
Dependencies are inferred from the claim text.