Patent ID: 7323240

Claim:
A polypropylene wrap film which is a multilayer film having: a surface layer comprising 99 to 20% by weight of a polypropylene resin, 1 to 80% by weight of a softening agent and, per 100 parts by weight of the sum of these components, 2 to 30 parts by weight of an adhering agent; and an inner layer comprising a gas barrier resin, and being stretched into a twice or more length in a machine direction and/or a transverse direction, wherein said softening agent is at least one selected from the group consisting of an amorphous or low crystalline propylene-α-olefin copolymer and crystalline polybutene-1, wherein said adhering agent is at least one selected from the group consisting of a hydrogenated petroleum resin, a hydrogenated terpene resin, a hydrogenated rosin resin, liquid polybutene, liquid polyisobutylene and liquid butyl rubber, wherein the surface layer contains a liquid adhering assistant in an amount of 0.01 to 30 parts by weight per 100 parts by weight of the sum of the polypropylene resin and the softening agent contained in the surface layer, and said liquid adhering assistant is at least one selected from the ground consisting of a mineral oil and a white mineral oil, wherein the gas barrier resin of the inner layer is an ethylene-vinyl alcohol copolymer resin, and wherein the polypropylene wrap film has a degree of adhesion of from 0.7 to 4 cN.