Abstract: A nonwoven fabric (NF) comprising a multilayer structure that comprises: i) at least one meltblown layer (M) comprising melt blown fibers (MBF) comprising a first propylene polymer (PP1) having: a) an amount of 2,1-regiodefects in the range from 0.0 to 0.1 mol-%; and b) a melting temperature Tm in the range from 155 to 170° C., ii) at least one spunbonded layer (S) comprising spunbonded fibers (SBF) comprising a second propylene polymer (PP2) having: a) an amount of 2,1-regiodefects in the range from 0.4 to 1.5 mol-%; and b) a melting temperature Tm in the range from 145 to 160° C. wherein the melting temperature of the first polypropylene polymer Tm (PP1) is at least 5.0° C. higher than that of the second first polypropylene polymer Tm (PP2).

Abstract: The invention is related to polymer compositions combining high impact strength with good haze and additionally showing good stress whitening resistance.

Abstract: A method for achieving the simultaneous washing/delamination of multilayer films via treatment with an alkaline aqueous solution during a mechanical recycling process, thereby improving the yield and/or purity of a desired polyolefin.

Abstract: A process for the preparation of isotactic propylene polymer compositions involving the polymerisation of propylene and optionally one or more comonomers selected from ethylene and ?-olefins containing 4 to 12 carbon atoms in one or more reaction steps in the present of a catalyst system comprising 45 to 99 wt.-% of a metallocene catalyst and 1 to 55 wt.-% of a Ziegler Natta catalyst having a non-phthalate internal donor and having been prepolymerised with a monomer (I) of the general formula CH2?CH—CHR1R2 (I) wherein R1 and R2 are either individual alkyl groups with one or more carbon atoms or form an optionally substituted saturated, unsaturated or aromatic ring or a fused ring system containing 4 to 20 carbon atoms.

Abstract: Disclosed is a polymer composition comprising at least the following components A) 20 to 75 wt.-% based on the overall weight of the polymer composition of a polymer blend, comprising a1) polypropylene; a2) polyethylene; wherein the weight ratio of a1) to a2) is from 3:7 to 12:1; and wherein the polymer blend A) is a recycled material; B) 25 to 80 wt.-% based on the overall weight of the polymer composition of a virgin polypropylene homopolymer. Also disclosed are a process for manufacturing the polymer composition, a process for improving mechanical properties of a polymer blend A) by incorporating B) into A) and articles made from the resulting polymer composition.

Abstract: A semiconductive polymer composition comprising: (a) an ethylene C1-2-alkyl (meth)acrylate copolymer having an MFR2 of 4.5 g/10 min or more and a C1-2-alkyl (meth)acrylate content of at least 9.0 wt % based on the total weight of the ethylene C1-2-alkyl alkyl (meth)acrylate copolymer; (b) 35.0 to 48 wt % carbon black having an iodine adsorption number of 85 to 140 mg/g (ASTM D 1510-19a), an oil absorption number of 90 to 110 ml/100 g (ASTM D 2414-19) and an average primary particle size of 29 nm or less (ASTM D 3849-14a); and (c) 0.05 to 2.0 wt % of at least one antioxidant; all weight percentages being based on the total weight of the semiconductive polymer composition, unless mentioned otherwise.

Abstract: A multimodal polyethylene composition having a lower molecular weight (LMW) ethylene homo or copolymer component (A) and a higher molecular weight ethylene copolymer component (B); wherein the LMW component comprises two fractions (ai) and (aii); wherein the polymer composition has a density of 930 kg/m3 or more (ISO1183), such as 938 to 955 kg/m3, an MFR2 (ISO1133 at 190° C. and 2.16 kg load) in the range of 0.05 to 10 g/10 min, a flex modulus of up to 800 MPa (ISO 178:2010), such as 300 to 800 MPa (ISO 178:2010) and a taber abrasion resistance of 8.0 to 13.0 mg/1000 cycle (ASTM D 4060: 2014).

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 biaxially oriented film comprising a multimodal high density polyethylene (HDPE), wherein the multimodal HDPE has a density determined according to ISO 1183 in the range of 952 to 968 kg/m3 and an MFR2 of 0.3 to 3.0 g/10) min when measured at 190° C. with a load of 2.16 kg according to ISO 1133, and wherein the multimodal HDPE comprises at least two fractions: (C) 30 to 70 wt % relative to the total weight of the multimodal HDPE, of a lower molecular weight fraction being a polyethylene with a density in the range of 955 to 980 kg/m3 and an MFR2 of 100 to 2000 g/10 min when measured at 190° C. with a load of 2.16 kg according to ISO 1133; and (D) 30 to 70 wt % relative to the total weight of the multimodal HDPE, of a higher molecular weight fraction being a polyethylene with a density in the range of 925 to 970 kg/m3 and an MFR2 of 0.0001 to 1.0 g/10 min when measured at 190° C. with a load of 2.16 kg according to ISO 1133.

Abstract: The present invention concerns a multimodal polyethylene composition comprising a base resin comprising a copolymer of ethylene and at least one comonomer selected from alpha-olefins having from 3 to 10 carbon atoms, wherein the base resin has (a) a density of at least 945.0 kg/m3 and not more than 955.0 kg/m3, determined according to ISO 1183-1:2004, (b) a melt flow rate MFR5 (190° C., 5 kg), determined according to ISO 1133, of from 0.15 to 0.25 g/10 min., and wherein the polyethylene composition has (c) a molecular chain length, determined according to Quantitative 13C{1H} NMR analysis, of at least 850 and not more than 1200, and (d) a tensile modulus of at least 900 MPa and not more than 1200 MPa, determined according to ISO 527-3, a method for its production, a pipe or fitting comprising it and its use for increasing the pressure resistance and/or the slow crack growth resistance of a pipe or fitting.

Abstract: Provided is a polyolefin composition including a) at least one heterophasic polypropylene copolymer with a melt flow rate MFR2 (230° C., 2.16 kg, measured according to ISO 1133) of at least 40 g/10 min, preferably of at least 60 g/10 min; b) at least one polypropylene homopolymer with a melt flow rate MFR2 (230° C., 2.16 kg, measured according to ISO 1133) of at least 400 g/10 min; and c) a blend (A) of recycled plastic material comprising polypropylene and polyethylene in a ratio between 3:7 and 12:1, which is recovered from a waste plastic material derived from post-consumer and/or post-industrial waste with a melt flow rate MFR2 (230° C., 2.16 kg, measured according to ISO 1133) of at least 5 g/10 min. The polyolefin composition has a melt flow rate MFR2 (230° C., 2.16 kg, measured according to ISO 1133) of at least 20 g/10 min.

Abstract: A mechanical polyolefin recycling process, comprising a particular combination of processing steps in a given order, providing access to highly pure recycled polyolefin grades, having well balanced mechanical and optical properties that are superior to those typically seen in similar recycled polyolefin grades and a mechanical polyolefin recycling apparatus configured for carrying out the mechanical polyolefin recycling process.

Abstract: Use of polymer composition comprising a first propylene polymer A and a second propylene polymer B for producing crimped multicomponent fiber having a side by side cross-sectional configuration.

Abstract: The present invention relates to a computer implemented method for predicting the ductile-to-brittle transition temperature of a test polymer composition based on impact curves. Furthermore, a non-transitory computer readable storage medium is provided for tangibly storing computer program instructions capable of being executed by a processor, the computer program instructions defining the steps the aforementioned computer implemented method. Furthermore, the invention is directed to the use of impact curves and values indicative of the ductile-to-brittle transition temperatures of polymer compositions for training machine learning algorithms.

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 polypropylene (PP) composition comprising a long-chain branched terpolymer of propylene, ethylene and 1-butene (LCB-TER), wherein the composition has a MFR2, determined according to ISO1133, in a range of from 5 to 30 g/10 min, a melting temperature Tm in a range of from 100 to 150° C. and a crystallization temperature Tc in a range of from 90 to 120° C. A process for producing said PP composition involving a post-reactor treatment. Polymer film comprising said PP composition and a method for producing the same.

Abstract: The invention disclosed herein relates to a computer-implemented method for outputting parameter values describing at least an elastoplastic mechanical response of one or more materials, most preferably one or more polymers. The invention further relates to a non-transitory computer readable storage medium for tangibly storing computer program instructions capable of being executed by a processor, the computer program instructions defining the steps of one or more steps of the computer-implemented method for outputting parameter values as described herein.

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 relates to a new multimodal ethylene copolymer (P), to the use of the copolymer in film applications and to a film comprising the copolymer of the invention.