Patent ID: 6162871
Filing Date: 2000-12-19
Classification: B32B,C08F,C08J,C08L,H01B,Y10S

Abstract:
A polyolefin resin composition comprising:not less than 2% by weight of an ethylene-.alpha.-olefin copolymer and not more than 98% by weight of a polyolefin;wherein said copolymer has:(A) a density (d) of 0.86 to 0.96 g/cm.sup.3 ;(B) a melt flow rate (MFR) 0.01 to 200 g/10 min;(C) a molecular weight distribution (Mw/Mn) of 1.5 to 4.5;(D) a composition distribution parameter (Cb) of 1.08 to 2.00;(E) an orthodichlorobenzene-soluble content (X, wt %) at 25.degree. C., a density (d, cm.sup.3) and a melt flow rate (MFR, g/10 min) satisfying that:(i) when the density (d) and the melt flow rate (MFR) satisfy relationship (I):d-0.008.times.log MFR24 0.93 (I)the orthodichlorobenzene-soluble content (X) satisfies relationship (II):X<2.0 (II)(ii) when the density (d) and the melt flow rate (MFR) satisfy relationship (III):d-0.008.times.log MFR<0.93 (III)the orthodichlorobenzene-soluble content (X) satisfies relationship (IV):X<9.8.times.10.sup.3 .times.(0.9300-d+0.008.times.log MFR).sup.2 +2.0 (IV);wherein said copolymer has an electrical activation energy of not more than 0.4 eV; and(F) a number of peaks on an elution temperature-eluted amount curve determined by continuous temperature rising elution fractionation method (TREF) of 2 or more.