Patent ID: 6211295
Filing Date: 2001-04-03
Classification: C08L

Abstract:
Blown films, comprising a polyolefin composition comprising:(A) from 70% to 99% of a polyolefin composition having:(A1) 35-85 parts by weight of a fraction which is insoluble in xylene at room temperature, comprising a substantially linear propylene homopolymer and/or a substantially linear copolymer of propylene with ethylene and/or another .alpha.-olefin CH.sub.2 =CHR.sup.I, where R.sup.I is an alkyl radical having 2-10 carbon atoms, this fraction containing more than 85% by weight of units derived from propylene; and(A2) 20-65 parts by weight of a fraction which is soluble in xylene at room temperature, comprising a substantially liner amorphous copolymer of ethylene with propylene and/or another .alpha.-olefin CH.sub.2 =CHR.sup.I, where R.sup.I has the meaning described above, this fraction optionally containing smaller proportions of a diene, and containing more than 15% by weight of units derived from ethylene; and(B) from 1 to 30% by weight of a propylene polymer with a branching number less than 1.