Patent ID: 7297394
Filing Date: 2007-11-20
Classification: C08J,C08K,C08L,Y10T

Abstract:
1. An article of manufacture that is adapted for use as a food wrap that is both resistant to liquids and biodegradable comprising a biodegradable sheet or film having a single layer formed by extruding, blowing or casting a thermoplastic melt formed from a biodegradable thermoplastic composition that includes: (i) at least one thermoplastic biodegradable polymer; and (ii) at least one type of filler particles, wherein the sheet or film is stretched during processing so as to result in cavitation comprising tiny cavities in the vicinity of the filler particles, wherein the sheet or film is thin and flexible so as to be easily wrapped around a food item and possesses sufficient dead-fold that it will remain wrapped around the food item absent application of an external force, wherein the sheet or film, prior to being used to wrap a food item, includes a first exposed surface that contacts the food item when wrapped around the food item and a second exposed surface on a side of the sheet or film opposite the first exposed surface.