Abstract:
Films or sheets comprising a layer of a heterophasic propylene copolymer containing up to 7.0% by weight of ethylene-derived units and comprising: (a) from 80% to 92% by weight of a matrix phase being a propylene homopolymer or a propylene copolymer containing up to 5% by weight of units derived from ethylene and/or an alpha-olefin; and (b) from 8% to 20% by weight of a rubber phase that is an ethylene-propylene copolymer containing from 20% to 60% by weight of ethylene-derived units.
Abstract:
A copolymer of propylene with hexene-1 containing from 5 to 9% by weight of recurring units derived from hexene-1, having a melting temperature from 125°C to 140°C and Melt Flow Rate (ASTM D1238, 230°C/2.16 Kg) from 0.1 to 3 g/10 min., is used to produce blown films having valuable mechanical and optical properties.
Abstract:
A masterbatch composition comprising (percent by weight): A) 15%-50% of a polypropylene component having a melt flow rate of from 1 to 250 g/10 min.; and B) 50%-85% of an olefin polymer partially soluble in xylene at room temperature, containing from 60% to 85% by weight of ethylene; said masterbatch composition having (i) a value of the intrinsic viscosity [rl] of the fraction soluble in xylene at room temperature ([rl] SO l) equal to or lower than 2.9 dl/g, and (ii) a value of the ratio MFR / [TI],,,, equal to or lower than 4, is added to polyolefin materials to obtain final compositions suitable for injection molding.
Abstract:
A bottle closure comprising an olefin polymer composition (A) comprising 30-80 wt% of a crystalline propylene polymer having Mw/Mn ratio ranging from 5 to 60 and 20-70 wt% of a thermoplastic elastomeric olefin polymer composition.
Abstract:
A copolymer of propylene with hexene-1 containing from 5 to 9% by weight of recurring units derived from hexene-1, having a melting temperature from 125° C. to 140° C. and Melt Flow Rate (ASTM D1238, 230° C./2.16 Kg) from 0.1 to 3 g/10 min., is used to produce blown films having valuable mechanical and optical properties.
Abstract translation:丙烯与己烯-1的共聚物,其含有5至9重量%的衍生自己烯-1的重复单元,其熔点为125-140℃,熔体流动速率(ASTM D1238,230 / 2.16Kg)为0.1至3 g / 10分钟,用于生产具有有价值的机械和光学性能的吹塑薄膜。
Abstract:
A masterbatch composition comprising (percent by weight): A) 15%-50% of a polypropylene component having a melt flow rate of from 1 to 250 g/10 min.; and B) 50%-85% of an olefin polymer partially soluble in xylene at room temperature, containing from 60% to 85% by weight of ethylene; said masterbatch composition having (i) a value of the intrinsic viscosity [rl] of the fraction soluble in xylene at room temperature ([rl]SOl) equal to or lower than 2.9 dl/g, and (ii) a value of the ratio MFR / [TI],,,, equal to or lower than 4, is added to polyolefin materials to obtain final compositions suitable for injection molding.
Abstract:
Films or sheets comprising a layer of a heterophasic propylene copolymer containing up to 7.0% by weight of ethylene-derived units and comprising: (a) from 80% to 92% by weight of a matrix phase being a propylene homopolymer or a propylene copolymer containing up to 5% by weight of units derived from ethylene and/or an alpha-olefin; and (b) from 8% to 20% by weight of a rubber phase that is an ethylene-propylene copolymer containing from 20% to 60% by weight of ethylene-derived units.
Abstract:
Polyolefin compositions comprising (percent by weight): 1) 55-80% of a crystalline propylene homopolymer or copolymer containing up to 15% of ethylene and/or C4-C10 α-olefin(s) and having an MFR value of at least 15 g/10 min, and 2) 2) 20-45 wt% of a copolymer of ethylene with one or more C4-C10 α-olefin(s) containing from 10 to 4 wt% of said C4-C10 α-olefin(s). The said compositions have values of MFR equal to or higher than 15 g/10 min, a total content of ethylene of 20% or more, a total content of C4-C10 α-olefin(s) of 4.5% or more, a ratio of the total content of ethylene to the total content of C4-C10 α-olefin(s) of 2.3 or more, and an intrinsic viscosity value of the fraction soluble in xylene at room temperature of 1.7 dl/g or less.