Patent ID: 6414088
Filing Date: 2002-07-02
Classification: C08J,C08L

Abstract:
A soft resin composition comprising:a polyethylene resin (A-&agr;) in an amount of 100 parts by weight; and a linear ethylene/&agr;-olefin random copolymer (B-&agr;) comprising ethylene and an &agr;-olefin of 6 to 20 carbon atoms, in an amount of 50 to 5000 parts by weight, (A) wherein the polyethylene resin (A-&agr;) has: (a) an MFR (ASTM D 1238, 190Â° C., a load of 2.16 kg) of 1 to 150 g/10 min; and (b) a density of 0.901 to 0.970 g/cm3, and (B) wherein the ethylene/&agr;-olefin random copolymer (B-&agr;) has: (a) a density of 0.870 to 0.900 g/cm3; (b) an intrinsic viscosity (&eegr;), as measured in decalin at 135Â° C., of 0.3 to 3.0 dl/g; (c) a glass transition temperature (Tg) of not higher than âˆ’50Â° C.; (d) a crystallinity, as measured by X-ray diffractometry, of not more than 30%; (e) a molecular weight distribution (Mw/Mn), as measured by GPC, of not more than 3.0; (f) a B value, as determined by the 13C-NMR spectrum of 1.0 to 1.4; and (g) a ratio g&eegr;* of the intrinsic viscosity (&eegr;) of this copolymer determined in the property (b) to the intrinsic viscosity (&eegr;)blank of a linear ethylene/propylene copolymer having the same weight-average molecular weight (measured by a light scattering method) as this copolymer and having an ethylene content of 70% by mol, (&eegr;)/(&eegr;)blank, of more than 0.95.