Olefin polymer compositions and easy-peelable sealants made by using the same

The present invention provides for polypropylene, low temperature dependence of its heat seal strength, low temperature sealing property may be formed, olefin polymer composition excellent in sealability and easy openability of the opening portion of the sealing material appearance. Particularly as the heat resistance, oil resistance material, the specific proportions of propylene polymer (A), a density of 900kg / m 3 or more vinyl polymer (B), noncrystalline or low crystalline ethylene · α- olefin copolymer (C) and a tackiness imparting resin (D) constituting the composition formed. Further, as a material excellent in oil resistance, by a particular ratio of the unsaturated ethylene copolymer (E), the propylene-based polymer (A), an amorphous or low crystalline ethylene alpha] -olefin copolymer (C) and tackiness imparting resin (D) constituting the composition formed.