Patent ID: 6589615
Filing Date: 2003-07-08
Classification: A22C,B29C,Y10T

Abstract:
A porous food casing consisting essentially of:a film of food grade thermoplastic having a plurality of interconnected interstices therein, the interstices defined by a porosity modifier, the porosity modifier present in the casing in a range of approximately 70 to 30% by weight based on total weight of the casing and being selected from the group consisting of soybean oil, peanut oil, corn oil, glycerin, polyethylene glycol, monolaurate, mineral oil, polyoxyethylene, sorbitan monostearate, sorbitan monooleate and glycerol monooleate, the interstices in a range of approximately 0.002 to 1 micron, the casing having a water vapor permeability in a range of about 1 to 1500 gms/m2/min.