| abstract |
A laminate film for stretch-wrapping is disclosed, comprising an intermediate layer containing from 50 to 95% by weight of at least one member selected from the group (A) consisting of (A-1) an ethylene-α-olefin copolymer (A-2) a propylene-ethylene-α-olefin random copolymer or propylene-α-olefin random copolymer, and (A-3) a butene-1 homopolymer or butene-1-ethylene copolymer and from 5 to 50% by weight of at least one member selected from the group (B) consisting of (B-1) a hydrogenated block copolymer elastomer (B-2) 1,2-polybutadiene, and (B-3) an ethylene-propylene copolymer elastomer or ethylene-butene-1 copolymer elastomer comprising ethylene and propylene or butene-1, having laminated on both sides thereof a surface layer comprising an ethylene resin selected from the group (C) consisting of (C-1) a copolymer of ethylene and vinyl acetate, (C-2) a copolymer of ethylene and an unsaturated aliphatic carboxylic acid, and (C-3) a copolymer of ethylene and an unsaturated aliphatic monocarboxylic acid alkyl ester. The film is excellent in stretchability, softness, tear strength, and in particular deformation recovery properties as well as other properties, such as moderate slip properties, self-tack, sufficient heat sealability, heat resistance during heat sealing, and transparency. |