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Abstract

Asoft resin composition of the present invention comprises a polyethylene resin (A) and an ethylene/.alpha.-olefin random copolymer (B) comprising ethylene and an .alpha.-olefin having 3 to 20 carbon atoms at a specific proportion, wherein an MFR and density of the polyethylene resin (A), and a density, intrinsic viscosity, glass transition temperature, crystallinity, molecular weight distribution, B value and g.eta.* values of the copolymer (B) are each in a specific range. The soft resin composition is excellent in melt flow characteristics, namely excellent in moldability, and is capable of providing moldings excellent in balance between pliability and heat resistance. An ethylene/.alpha.-olefin copolymer resin composition of the present invention comprises a liner ethylene /.alpha.-olefin copolymer (A-.alpha.) comprising ethylene and an .alpha.-olefin having 4 to 20 carbon atoms and a long-chain branched ethylene/.alpha.-olefin random copolymer (B-.alpha.) comprising ethylene and an .alpha.-olefin having 3 to 20 carbon atoms in a specific proportion, wherein a density and melt flow rate of the copolymer (A-.alpha.) and a density, MFR, intrinsic viscosity, glass transition temperature, crystallinity, molecular weight distribution, B value and g.eta.* values of the copolymer (B-.alpha.) are each in a specific range. A film of the invention is produced from the resin composition. The ethylene/.alpha.-olefin copolymer resin composition is excellent in heat stability and suitability for high-speed molding, and can provide the films excellent in mechanical strength properties, low temperature heat-sealing properties and sealing stability, and further in slip characteristics and anti-blocking properties thereby being excellent in handling properties and suitability for high-speed filling upon packaging by automatic filling machines. The film also exhibits the effect as described above.

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First Claim