Abstract: A polypropylene composition (C) comprising: i) from 55.0 to 95.0 wt.-% of a heterophasic propylene copolymer (HECO), ii) from 5.0 to 45.0 wt.-% of a copolymer (CP), preferably a random copolymer, of propylene and at least one comonomer selected from the group of C4-C10 alpha-olefins that has been synthesized in the presence of a single-site catalyst, wherein the polypropylene composition (C) has a melt flow rate MFR2 of from 1.0 to 30.0 g/10 min, and wherein the polypropylene composition (C) has a Charpy Notched Impact Strength NIS of greater than or equal to 16.0 kJ/m2.

Abstract: The invention provides a process for transitioning between a Ziegler-Natta catalyst and a single site catalyst during the production of a polypropylene homo- or copolymer in a continuous multistage polymerisation reaction, wherein the process comprises the following steps, in sequential order: a) polymerising propylene and optionally comonomers in a first reactor and thereafter in a second reactor in the presence of the Ziegler-Natta catalyst; b) discontinuing the feed of the Ziegler-Natta catalyst into the first reactor; c) discontinuing the feed of an external donor to the Ziegler-Natta catalyst and reducing the feed of a Ziegler-Natta co-catalyst into the first reactor, wherein step c) takes place at least minutes, preferably 5 to 60 minutes after step b); d) reducing the solid content of the second reactor from a first operating level to a transitioning level in the range of 40 to 80%, relative to the level prior to step d); e) introducing the single site catalyst into the first reactor, wherein step e) t

Abstract: Process for the production of a polypropylene homo- or copolymer, the process comprising the steps of a) prepolymerising propylene in a first reactor in the presence of hydrogen and a metallocene catalyst yielding a first polypropylene homo- or copolymer fraction, wherein a ratio of the feed of hydrogen to the feed of propylene is in the range of 0.01 to 0.08 mol/kmol, and wherein the temperature in the first reactor is from 15 to 29° C., b) transferring the first polypropylene homo- or copolymer fraction to a second reactor, c) polymerising in the second reactor propylene in the presence of the first polypropylene homo- or copolymer fraction, yielding a second polypropylene homo- or copolymer fraction, wherein a residence time in the second reactor is from 10 to 40 min, d) withdrawing the first and the second polypropylene homo- or copolymer fraction from the second reactor or transferring the first and the second polypropylene homo- or copolymer fraction to a third reactor.

Abstract: A propylene/ethylene/1-butene terpolymer composition, includes a) a multimodal base polymer in an amount from 95 to 99.9 wt.-% relative to the total weight of the propylene/ethylene/1-butene terpolymer composition, with the following properties: i. a melt flow rate in the range from 3 to 12 g/10 min, as determined according to ISO 1133 at 230° C. at a load of 2.16 kg; ii. a content of 2,1-regiodefects in the range from 0.1 to 1.0 mol-%, as determined according to quantitative 13C-NMR spectroscopy analysis; iii. an ethylene content in the range from 1.0 to 4.0 mol-%, as determined according to 13C-NMR spectroscopy; and iv. a 1-butene content in the range from 3.0 to 10.0 mol-%, as determined according to 13C-NMR spectroscopy; v. a xylene cold soluble content in the range from 0 to 3.0 wt.-%, as determined according to ISO 16152. The multimodal base polymer includes a1) a first terpolymer fraction, in an amount of from 50 wt.-% to 80 wt.

Abstract: A process for transitioning between two different catalysts during the production of polypropylene homo- or copolymers in a continuous multistage polymerisation reaction, the process comprising the steps of: a) polymerising propylene and optionally comonomers in a multi stage polymerisation reactor system comprising a prepolymerisation reactor, a subsequent slurry reactor and thereafter a gas phase reactor in the presence of a first catalyst; b) discontinuing the feed of the first catalyst to the prepolymerisation reactor; c) subsequently introducing, propylene, optionally comonomers, and a second catalyst into the prepolymerisation reactor, and further introducing an aluminium alkyl into the polymerisation reactor simultaneously with the introduction of the second catalyst; d) polymerising propylene and optionally comonomers in the multistage polymerisation reactor system in the presence of the second catalyst; wherein the first catalyst is a Ziegler-Natta catalyst and the second catalyst is a single site ca

Abstract: The present application relates to a process for the production of a polypropylene copolymer, the process comprising the steps of a) prepolymerising propylene in a first reactor in the presence of ethylene and a metallocene catalyst yielding a prepolymer, wherein a ratio of the feed of ethylene to the feed of propylene is in the range of 0.1 to 15 mol/kmol, b) transferring the prepolymer to a second reactor, c) polymerising propylene in the second reactor in the presence of said prepolymer, one or more comonomers selected from alpha olefins having from 2 or 4 to 10 carbon atoms or mixtures thereof, preferably 2 or 4 carbon atoms, yielding a polypropylene copolymer, d) withdrawing the polypropylene copolymer from the second reactor or transferring the polypropylene copolymer to a third reactor, wherein the metallocene catalyst comprises a metallocene complex and a support, wherein the support comprises silica.

Abstract: The present invention concerns a process for producing a heterophasic propylene copolymer composition, the process comprising the steps of a) preparing a bimodal matrix phase (A) of a heterophasic propylene copolymer by a1) polymerizing in a first reactor propylene to obtain a first propylene polymer fraction having a melt flow rate MFR2 of 25 to 85 g/10 min determined according to ISO 1133 at 230° C. and 2.16 kg load, a2) transferring the first propylene polymer fraction to a second reactor, and polymerizing in the second reactor propylene to obtain a second propylene polymer fraction, the combined first and second propylene polymer fractions having an MFR2 determined according to ISO 1133 at 230° C. and 2.16 kg load being at least 2.

Abstract: Process for the production of a polypropylene based article having improved surface tension retention, and polypropylene based article having improved surface tension.

Abstract: A composition comprising (A) 40 to 80 wt.-% of a first heterophasic composition (HECO1); (B) 7 to 30 wt.-% of a second heterophasic composition (HECO2); (C) 0 to 12 wt.-% of an HDPE; (D) 2 to 12 wt.-% of a plastomer; and (E) 7 to 25 wt.-%, of talc; wherein HECO1 has a Tm of 150 to 159° C., an MFR2 of 20.0 to 120 g/10 min, a CRYSTEX crystalline fraction of 79.0 to 91.0 wt.-%, a CRYSTEX soluble fraction of 9.0 to 21.0 wt.-%, and an ethylene content of 1.5 to 6.5 mol.-%; HECO2 has an MFR2 of 2.0 to 10.0 g/10 min, a CRYSTEX crystalline fraction of 70.0 to 82.0 wt.-%, a CRYSTEX soluble fraction of 18.0 to 30.0 wt.-% and an ethylene content of 9.0 to 20.0 mol.-%; the plastomer being a C2/C8 or a C2/C4 copolymer having a density of 850 to 900 kg/m3.

Abstract: A heterophasic propylene ethylene copolymer composition having an MFR2 in the range from 1.0 to 55.0 g/10 min and a melting temperature in the range from 155 to 162° C., comprising: i) from 60 to 88 wt.-% of a xylene cold insoluble fraction (XCI) having an intrinsic viscosity iV(XCI) in the range from 1.40 to 2.50 dl/g, an isotactic pentad concentration [mmmm] of more than 97.0% and a content of 2,1-regiodefects in the range from 0.1 to 0.4 mol %, ii) from 12 to 40 wt.-% of a xylene cold soluble fraction (XCS) having an intrinsic viscosity iV(XCS) in the range from 1.80 to 3.20 dl/g and an ethylene content C2(XCS) in the range from 25 to 80 wt.-%, wherein the ratio of the intrinsic viscosities of the two fractions, iV(XCS)/iV(XCI), is in the range from 1.0 to 2.0.

Abstract: The present invention relates to a film, preferably an unoriented film, comprising a polypropylene composition comprising a random copolymer of propylene monomer units and ethylene comonomer units, wherein the random copolymer has a content of ethylene comonomer units of from 0.5 to 4.0 wt %, based on the total weight amount of monomer units in the random copolymer, the polypropylene composition has a melt flow rate MFR2 of from 0.5 to 20.0 g/10 min, determined according to ISO 1133 at a temperature of 230° C. and a load of 2.16 kg, and the film has a tensile modulus in machine direction TM-MD in the range of from 450 to 850 MPa, when measured according to ISO 527-3 on a 50 ?m monolayer cast film, a process for producing such a film and the use of such a polypropylene composition for the production of a film with an improved balance of properties of tensile modulus and protrusion impact.

Abstract: Fiber reinforced composite comprising a polypropylene with high melting temperature and narrow molecular weight distribution.

Abstract: Composition for automotive exterior components, the composition comprising a) 30 to 45 wt.-%, based on the total weight of the composition, of a first heterophasic propylene copolymer (HECO1) having a melt flow rate MFR2 of 50 to 250 g/10 min determined according to ISO 1133 at 230° C. and 2.16 kg load, a soluble fraction (SF) content of 6 to 22 wt.-% based on the total weight of the first heterophasic propylene copolymer (HECO1) as determined according to the CRYSTEX method, and an ethylene content C2(SF) of 15 to 30 wt.-% based on the total weight of the soluble fraction (SF) of the heterophasic propylene copolymer (HECO1) as determined by Fourier transform infrared spectroscopy (FTIR) calibrated with 13C-NMR spectroscopy, b) 15 to 30 wt.-%, based on the total weight of the composition, of a second heterophasic propylene copolymer (HECO2) having an MFR2 of 5 to 15 g/10 min determined according to ISO 1133 at 230° C. and 2.16 kg load, a soluble fraction (SF) content of 25 to 45 wt.

Abstract: A polypropylene composition (PC) comprising: a. from 95.0 to 99.99 wt.-%, of a polypropylene (PP), preferably a propylene homopolymer (HPP); and b. from 0.01 to 5.0 wt.-%, of a compound according to Formula (I), wherein each R is independently selected from C1 to C6 alkylene, C2 to C6 alkenylene and a single bond, each R? is independently selected from H and C1 to C6 alkyl, each R? is independently selected from H and C1 to C22 alkyl, wherein each alkylene, alkenylene and alkyl group may optionally be substituted by deuterium or fluorine, and the two substituents on the central benzene ring may be either positioned in an ortho, meta or para relationship; wherein the polypropylene composition (PC) has an MFR2 of from 400 to 5000 g/10 min and a melting temperature Tm of from 140 to 170° C.

Abstract: An alpha-nucleated monophasic propylene terpolymer composition (PC) having an ethylene content in the range from 0.75 to 4.0 mol-%, a 1-butene content in the range from 2.0 to 7.5 mol-%, an MFR2 in the range from 1.0 to 35 g/10 min, a melting temperature in the range from 125 to 140° C., and a crystallization temperature in the range from 95 to 115° C., wherein the alpha-nucleated monophasic propylene terpolymer composition (PC) furthermore has: a) a 1.5 N Hot Tack sealing process window, measured on a 50 m blown film sample, in the range from 15 to 25° C., or b) a 1.5 N Hot Tack sealing process window, measured on a 50 m cast film sample, in the range from 20 to 30° C.

Abstract: Polypropylene-based multilayer film, which is biaxially oriented, a process for manufacturing the biaxially oriented multilayer film and its use in flexible packaging.

Abstract: The present invention relates to a polypropylene composition (C) comprising: i) from 55.0 to 95.0 wt.-%, based on the total weight of the composition, of a heterophasic propylene copolymer (HECO) comprising a semicrystalline matrix phase and an elastomeric phase dispersed in said matrix phase and a xylene cold soluble fraction (XCS) determined at 23° C. according to ISO 16152 in the range from 18.0 to 45.0 wt.-%, and ii) from 5.0 to 45.0 wt.-%, based on the total weight of the composition, of a random copolymer (CP) of propylene and at least one comonomer selected from the group of C4-C10 alpha-olefins that has been synthesized in the presence of a single-site catalyst, wherein the polypropylene composition (C) has a melt flow rate MFR2 measured according to ISO 1333 at 230° C. and 2.16 kg of from 20.0 to 100.

Abstract: A multilayer film (F), comprising, in the given order, the following layers: (A) a skin layer; (B) a core layer; and (C) a sealing layer, comprising at least 90 wt.-% of a polypropylene composition (PC) comprising the following components: i) 20 to 70 wt.-% of a RAHECO having an MFR2 of 0.1 to 10.0 g/10 min; ii) 10 to 50 wt.-% of a first propylene-ethylene random copolymer (R-PP1) having an MFR2of 1.0 to 6.0 g/10 min; and iii) 10 to 50 wt.-% of a second propylene-ethylene random copolymer (R-PP2) having an MFR2 of 7.0 to 20 g/10 min.

Abstract: Polypropylene-based multilayer film, which is biaxially oriented, a process for manufacturing the biaxially oriented multilayer film and its use in flexible packaging.

Abstract: Polypropylene-based multilayer film, which is biaxially oriented, a process for manufacturing the biaxially oriented multilayer film and its use in flexible packaging.