Patent ID: 6794053
Filing Date: 2004-09-21
Classification: B32B,Y10T

Abstract:
A multi-layer film structure for use in packaging flowable dairy products into flexible pouches comprising an inner sealing layer, an outer layer, and a core sandwiched between said sealing layer and said outer layer, wherein said sealing layer comprises about 70 to 95 weight percent of a metallocene catalyzed resin having a density of between about 0.902 and 0.912 g/cc, and about 0 to 60 weight percent of a low density polyethylene or a mixture of low density polyethylene and linear low density polyethylene; said outer layer comprises a low density polyethylene or a mixture of low density polyethylene and linear low density polyethylene; said core comprising a mixture of about 10 to 90 weight percent of a polypropylene copolymer and about 10 to 90 weight percent of a low density polyethylene or a mixture of low density polyethylene and linear low density polyethylene; said multi-layer film structure having a thickness within a range between about 50 and 70 microns; said metallocene catalyzed resin being m-polyethylene.