| 摘要 |
The invention provides a polypropylene based wrap film as a multilayered film, which comprises: (A) a surface layer containing: a first composition comprising from 50 to 99 % by weight of (S1) a crystalline polypropylene based resin and from 1 to 50 % by weight of (S2) at least one softener selected from amorphous or lowly crystalline propylene-±-olefin copolymers and butene-1 polymers; and from 2 to 20 parts by weight of (S3) a rosin derivative and from 2 to 20 parts by weight of (S4) a mineral oil, each based on 100 parts by weight of the total sum (S1 + S2) of the first composition; and (B) a core layer which is disposed adjacent to the surface layer and which contains from 80 to 99 % by weight of (C1) a crystalline polypropylene based resin and from 1 to 20 % by weight of (C2) a mineral oil; and a polypropylene based wrap film as a multilayered film, which comprises: (A) a surface layer containing: a first composition comprising more than 80 % by weight and not more than 99 % by weight of (S1) a crystalline polypropylene based resin and from 1 % by weight or more and less than 20 % by weight of (S2) at least one softener selected from amorphous or lowly crystalline propylene-±-olefin copolymers and butene-1 polymers; and from 2 to 20 parts by weight of (S3') at least one clinging agent selected from hydrogenated products of a 1-methyl-4-(1-methylethenyl)-cyclohexene homopolymer and hydrogenated hydrocarbon resins and from 2 to 20 parts by weight of (S4) a mineral oil, each based on 100 parts by weight of the total sum (S1 + S2) of the first composition; and (B) a core layer which is disposed adjacent to the surface layer and which contains from 80 to 99 % by weight of (C1) a crystalline polypropylene based resin and from 1 to 20 % by weight of (C2) a mineral oil. According to the present invention, a satisfactory wrap film free from sticky feeling and twining can be provided. |
