Abstract:
A container comprising a propylene, ethylene, 1-hexene terpolymer wherein in the terpolymer: (i) the content of ethylene derived units ranges from 0.6 wt% to 1.1 wt%; (ii) the content of 1-hexene derived units ranges from 1.1 wt% to 2.8 wt%; (iii) the ratio between the ethylene derived units content and the 1-hexene derived units content C2/C6 fulfills the following equation (I); C2/C6
Abstract:
A polyolefin composition, particularly fit for the production of extrusion blow molded articles, comprising (a) a propylene-ethylene copolymer having a content of units deriving from ethylene of 4.0 % by weight or higher, and (b) a nucleating agent and having a crystallization temperature (Tc) higher than 117°C can be obtained by copolymerizing propylene and ethylene in the presence of a catalyst system obtained by contacting a solid catalyst component comprising a magnesium halide, a titanium compound having at least a Ti-halogen bond and at least two electron donor compounds one of which being present in an amount from 40 to 90% by mol with respect to the total amount of donors and selected from succinates and the other selected from 1,3 diethers, an aluminum hydrocarbyl compound, and optionally an external electron donor compound.
Abstract:
A propylene ethylene 1-butene terpolymer wherein: (i) the content of ethylene derived units ranges from 1.1 wt% to 1.9 wt%, (ii) the content of 1-butene ranges from 5.0 wt% to 9.0 wt%, (iii) the melting point (Tm) of the non nucleated terpolymer ranges from 125°C to 137°C; (iv) the xylene soluble fraction at 25°C is lower than 8.0 wt%.
Abstract:
A propylene polymer composition comprising: A) from 81 wt% to 91 wt% of a propylene ethylene copolymer containing from 1.0 wt% to 3.5 wt% of ethylene derived units having a fraction soluble in xylene at 25°C comprised between 10 wt% and 3 wt%; and a melt flow rate ranging from 5 to 50 g/10 min; B) from 9 wt% to 19 wt%, of a copolymer of propylene and ethylene with from 21.0 wt% to 31.0 wt% of ethylene derived units; the sum A) + B) being 100; the composition having an melt flow rate ranging from 20 to 35 g/10 min; the xylene soluble fraction at 25°C ranging from 13.0 wt% to 25.0 wt% and the intrinsic viscosity of the fraction soluble in xylene at 25°C ranging from 0.7 dl/g to 1.9 dl/g.
Abstract:
A propylene ethylene 1-butene terpolymer wherein: (i) the content of ethylene derived units ranges from 1.1 wt% to 1.9 wt%, (ii) the content of 1-butene ranges from 5.0 wt% to 9.0 wt%, (iii) the melting point (Tm) of the non nucleated terpolymer ranges from 125°C to 137°C; (iv) the xylene soluble fraction at 25°C is lower than 8.0 wt%.
Abstract:
A process for the preparation of random copolymer of propylene containing up to 6.0 % by weight of ethylene units, suitable for the manufacture of pipes, by copolymerizing propylene and ethylene in the presence of a catalyst system comprising the product obtained by contacting the following components: (a) a solid catalyst component comprising a magnesium halide, a titanium compound having at least a Ti-halogen bond and at least two electron donor compounds one of which being present in an amount from 40 to 90% by mol with respect to the total amount of donors and selected from succinates and the other being selected from 1,3 diethers, (b) n aluminum hydrocarbyl compound, and (c) optionally an external electron donor compound.
Abstract:
A propylene composition comprising (percent by weight): A) 70%-95%, of a propylene homopolymer having a Polydispersity Index (P.I.) value of from 4.6 to 10, a fraction insoluble in xylene at 25° C., higher than 90%, and MFR L (Melt Flow Rate according to ISO 1133, condition L, i.e. 230° C. and 2.16 kg load) from 60 to 120 g/10 min; B) 5%-30%, of a copolymer of propylene containing from 34.5% to 30.0% extremes included of ethylene derived units; the composition having an intrinsic viscosity of the fraction soluble in xylene at 25° C. comprised between 3 and 5 dl/g.
Abstract:
A propylene polymer composition comprising (percent by weight): A) 68%-80%, of a propylene homopolymer having a Polydispersity Index (P.I.) value of from 4.7 to 10 and MFR L (Melt Flow Rate according to ISO 1133, condition L, i.e. 230°C and 2.16 kg load) from 10 to 30 g/10 min; B) 20%-32%, of a copolymer of propylene containing from 40.1% to 42.5% extremes included of ethylene derived units; the composition having an intrinsic viscosity of the fraction soluble in xylene at 25 °C comprised between 3 and 6 dl/g and a MFR L from 4 to 12 g/10 min. Said Propylene polymer composition being particularly suitable for injection moulded articles having high rigidity and high impact properties at room and at low temperatures.