Patent ID: 8557372

Claim:
A food wrap laminate, comprising: at least one thermoplastic outer layer and at least one hydrophobic moisture and gas resistant thermoplastic inner layer; at least one barrier layer; a tie layer composition that is compatible with said hydrophobic polymer inner layer and said barrier layer, said tie layer composition comprising a polyacrylate or a polymethacrylate wherein the ester portion thereof has from 1 to about 12 carbon atoms, or a blend of said polyacrylate or said polymethacrylate with a polyolefin; a polyanhydride or a polymaleic anhydride, or a copolymer of said polyanhydride or said polymaleic anhydride with an olefin, with ethyl vinyl acetate, or with ethylene acrylate; wherein at least one of said inner layers contains a food preservative, and wherein said food preservative comprises ascorbyl palmitate, calcium ascorbate, EDTA, calcium sorbate, caprylic acid, dehydroacetic acid or its sodium salt, disodium thylenebisdithiocarbamate, erythorbic acid, formaldehyde, methylparaben, sodium nitrate, potassium nitrate, n-octanoic acid, octyl gallate, potassium metabisulfite, potassium sorbate, propionic acid, propylparaben, quaternary ammonium chloride combination, silver nitrate, silver metal particles, silver nano particles, ionic silver compounds, sodium ascorbate, sodium benzoate, sodium bisulfite, sodium dimethyldithiocarbamate, sodium metabisulfite, sodium nitrite, potassium nitrite, sodium phosphate, sodium propionate, sodium sorbate, stannous chloride, stearyl citrate, sulfating agents, sulfur dioxide, or a tocopherol; or any combination thereof; and wherein said laminate has an oxygen transmission rate of less than about 1.0 cc/100 in 2 /day.