Abstract:
Polyo lefin compositions, comprising (percent by weight): 1) 55-80% of a homopolymer or copolymer of propylene, said copolymer containing up to 15% of ethylene and/or C4-C10 -olefin(s). 2) 20-45% of a copolymer of ethylene with one or more C4-C10 -olefin(s) containing from 10 to 40% of said C4-C10 -olefin(s); said compositions having values of MFR (230 °C, 2.16 kg) up to 20 g/10 min, a total content of ethylene of 20% or more, a total content of C4-C10 -olefin(s) of 4.5% or more, a ratio of the total content of ethylene to the total content of C4-C10 -olefin(s) of 2.3 or more, a total fract ion soluble in xylene at room temperature of 18 wt% or higher and flexural modulus, referred to the composition as a reactor grade, of more than 700 MPa.
Abstract:
A propylene, ethylene, 1-butene terpolymer containing from 0.5 wt% to 2.2 wt% of ethylene derived units and from 6.0 wt% to 20.0 wt% of 1 butene derived units; wherein: i) the ratio C2wt%/C4wt% ranges from 0.09 to 0.06; wherein C2wt% is the weight per cent of ethylene derived units and C4wt% is the weight per cent of 1 -butene derived units; ii) the Melt flow rate ranges from 0.4 to 54 g/10 min; iii) the xylene soluble fraction at 25°C is lower than 15.0 wt% the minimum value being 5.0 wt%.
Abstract:
Random copolymers of propylene with ethylene, and optionally other olefins, comprising from 3.5% to 6.5% by weight of ethylene and having a melt flow rate (MFR) according to ISO 1133 (230°C, 2.16 Kg) of less than 10 g/10 min and a melting temperature (Tm), determined by DSC, satisfying the relation: 45 °C ≤ Tm + C ≤ 150 °C wherein C is the quantity (by weight) of ethylene in the copolymer. The random copolymers of the invention are specifically suited for cast film and/or sheet applications.
Abstract:
Pipe systems having at least one layer comprising a semi-crystalline random polymer of propylene and 0.2 to 5 wt% 1-hexen and optionally a recurring unit selected from ethylene and a C 4 -C 10 α-olefin in an amount from more than 0 to 9 % by moles. The polymer exhibits broad molecular weight distribution, in terms of the ratio of weight average molecular weight to numeric average molecular weight formula (I), ranging from 5 to 11, molecular weight distribution of monomodal type and hexen-1 content in the fraction with an intrinsic viscosity of equal to or higher than 3.3 dl/g lower than the hexen-1 content in the fraction with an intrinsic viscosity of less than 3.3 dl/g.
Abstract:
A terpolymer containing propylene, ethylene and an alpha olefins of formula CH2=CHZ wherein Z is an hydrocarbon group having from 2 to 10 carbon atoms wherein: (i) the content of ethylene derived units ranges from 0.5 wt% to 5.0 wt%; (ii) the content of alpha olefin derived units ranges from 1.0 wt% to 5.0 wt%; (iii) the amount (Wt%) of alpha-olefin (C6), the amount (Wt%) of ethylene (C2) and the melting point (Tm) of the terpolymer fulfil the following relation (1) Tm>-(C2+0.8C6)*6+157 (1) (iv) the polydispersity index (PI) ranges from 3 to 8.
Abstract:
A propylene/ethylene/1-hexene terpolymer containing from 1.0 wt% to 2.5 wt%, of ethylene derived units and from 2.0wt% to 3.5wt% of 1-hexene derived units, the sum of the amounts of propylene, ethylene and 1-.hexene derived units being 100, having the following features: a)the amount (Wt%) of 1-hexene (C6) and the amount (Wt%) of ethylene (C2) fulfil the following relation (i): 0.5
Abstract:
The polymeric composition of the present invention is a polyolefin composition comprising (percent by weight): 1) 10-60% of a copolymer of propylene and hexene-1 wherein said copolymer comprises from 0.2 to 10 % of recurring units derived from hexene-1; and 2) 10-85% of a propylene polymer selected from propylene homopolymer and a polymer of propylene with 0.1-10% of an α-olefin selected from ethylene, a C 4 -C 10 a-olefin, hexene-1 excluded, and a mixture thereof, said propylene polymer being insoluble in xylene at ambient temperature in an amount over 85% and having a Polydispersity Index ranging from 3 to 20; and 3) 5-30% of a copolymer of ethylene with a C 3 -C 10 α-olefin and optionally a diene, having an ethylene content ranging from 15 to 60% and an intrinsic viscosity value of at least 1 dl/g. Pipe systems and sheets produced from said composition show an optimal balance of mechanical properties.
Abstract:
A propylene polymer composition comprising: a) from 40 wt% to 80 wt% of a propylene 1-hexene copolymer containing from 5.5 to 9.0% by weight, of 1-hexene derived units having a Melt Flow Rate (MFR, measured according to ASTM D 1238, 230°C/2.16 kg, i.e. at 230°C, with a load of 2.16 kg) from 3.5 to 12.0 g/10 min; b) from 20 wt% to 60 wt% of a propylene ethylene copolymer containing from 1.5 wt% to 6.5 wt% of ethylene derived units, a having a Melt Flow Rate (MFR, measured according to ASTM D 1238, 230°C/2.16 kg, i.e. at 230°C, with a load of 2.16 kg) from 3.5 to 12.0 g/10 min.
Abstract translation:丙烯聚合物组合物,其包含:a)40重量%至80重量%的含5.5至9.0重量%的1-己烯衍生单元的丙烯1-己烯共聚物,所述单元具有熔体流动 速率(MFR,根据ASTM D 1238,230℃/ 2.16kg,即在230℃,2.16kg的负荷下测量)为3.5-12.0g / 10min; b)20重量%至60重量%的含有1.5重量%至6.5重量%的乙烯衍生单元的丙烯乙烯共聚物,其熔体流动速率(MFR,根据ASTM D 1238,230℃/ 2.16 kg,即在230℃,2.16kg的负载下)为3.5-12.0g / 10min。 p>
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 polyolefm compositions comprising: A) From 77 wt% to 90 wt%, of a propylene homopolymer having the fraction soluble in xylene at 25 °C lower than 2 wt%; B) from 10 wt% to 23 wt% of a copolymer of ethylene with one C4-C10 alpha-olefin containing from 20 wt% to 30 wt%, of said C4-C10 alpha-olefin derived units; said composition having - the value of melt flow rate (MFR) at 230 °C, 2.16 kg of from 0.5 to 4.5 g/10 min; - the total content of ethylene of from 10 wt% to 18 wt%; - the value of the intrinsic viscosity of the total fraction soluble in Xylene at 25°C (AMXSIVtot) is less than 1.5 dl/g.