Patent ID: 8642144

Claim:
A multilayer film comprising a nylon skin layer, a buried high moisture barrier high density polyethylene (HDPE) layer, and an outer surface sealant layer, the multilayer film having a thickness of less than 2.0 mils, the multilayer film exhibiting a moisture vapor transmission rate of 0.3 g/100 in 2 /day or less and exhibiting a tear strength in the machine direction of at least 40 grams, wherein the nylon skin layer comprises a material selected from the group consisting of nylon 6, nylon 6,6, nylon 6,66, nylon 12, and nylon MX-D6, and wherein the sealant layer comprises a material selected from the group consisting of ionomer; LLDPE; LDPE; ethylene vinyl acetate; polybutylene; polypropylene-based plastomers, homopolymers or random copolymers; medium density polyethylene (MDPE); high density polyethylene (HDPE); ultra low density polyethylene; very low density polyethylene, olefins catalyzed by a single site catalyst; EMA; EAA; ethylene normal-butyl acrylate (ENBA); copolymers of ethylene and ethylenically unsaturated comonomer selected from the group consisting of carboxylic acids and esters, salts and anhydrides thereof; ethylene methacrylic acid copolymer; and a blend of any of these polymers.