97 patents
Page 4 of 5
Utility
Catalyst for the polymerization of olefins
1 Jun 21
A catalyst component for the polymerization of olefins, comprising Ti, Mg, halogen, an electron donor (ID) selected from the group consisting of aliphatic cyclic ethers and alkyl esters of aliphatic monocarboxylic acids and a compound of a metal selected from the group consisting of Zn and Cu, wherein the catalyst component is devoid of Zn—C or Cu—C bonds and the Mg/Ti molar ratio ranges from 4.0 to 50.0.
Tiziano Dall'Occo, Simona Guidotti, Dario Liguori, Giampiero Morini
Filed: 7 Jul 17
Utility
Butene-1 polymer composition having a high melt flow rate
25 May 21
Roberta Marchini, Stefano Spataro, Emanuele Burgin, Roberta Pica
Filed: 3 Jul 17
Utility
Terpolymer compositions with improved clarity and gloss for blow molded and thermoformed articles
25 May 21
Ambra Montaletti, Roberta Marzolla, Jean-Pierre Bideau, Giampaolo Pellegatti, Tim Schloemer, Tim Skillman
Filed: 7 Aug 15
Utility
Olefin polymerization process in a gas-phase reactor comprising a riser unit and a downcomer
6 Apr 21
A process for preparing an ethylene polymer including the step of homopolymerizing ethylene or copolymerizing ethylene with one or more comonomers in a gas-phase polymerization reactor including a riser unit wherein growing polymer particles flow upwards under fluidization, fast fluidization or transport conditions and a downcomer wherein growing polymer particles flow downward in a densified form, wherein the hold-up of polymer particles in the downcomer is from 55 wt. % to 80 wt. % of the total hold-up of polymer particles in the gas-phase polymerization reactor.
Gerhardus Meier, Ulf Schueller, Gabriele Mei, Massimo Covezzi, Pietro Baita, Lorella Marturano
Filed: 9 Nov 17
Utility
Olefin polymerization process in a gas-phase reactor having three or more polymerization zones
6 Apr 21
Process for preparing an olefin polymer including the step of polymerizing an olefin in the presence of a polymerization catalyst and hydrogen as molecular weight regulator in a gas-phase polymerization reactor to yield growing polymer particles, the reactor including three or more polymerization zones and at least two thereof are sub-zones of a polymerization unit wherein the growing polymer particles flow downward in a densified form and at least one polymerization zone has a ratio of hydrogen to the sum of olefins which is a factor of at least 1.5 lower than the ratio of hydrogen to the sum of olefins in the polymerization zone having the highest ratio of hydrogen to the sum of olefins and a factor of at least 1.5 higher than the ratio of hydrogen to the sum of olefins in the polymerization zone having the lowest ratio of hydrogen to the sum of olefins.
Gerhardus Meier, Ulf Schueller
Filed: 9 Nov 17
Utility
Polyethylene composition for blow molding having high stress cracking resistance
16 Feb 21
Diana Doetsch, Bernd Lothar Marczinke, Gerhardus Meier, Ulf Schueller, Elke Damm, Claudio Fibla
Filed: 30 Oct 17
Utility
Process for preparing a polyolefin composition
26 Jan 21
A process for continuously preparing a polyolefin composition made from or containing a bimodal or multimodal polyolefin and one or more additives in an extruder device equipped with at least one hopper.
Peter Kruempel, Elke Damm, Reinhard Kuehl, Phil Pyman
Filed: 10 Jul 19
Utility
Composition comprising propylene-ethylene-1-butene terpolymers
19 Jan 21
Paola Massari, Fabrizio Piemontesi, Gianni Vitale, Caroline Cathelin, Giampiero Morini, Claudio Cavalieri, Marco Ciarafoni, Roberto Pantaleoni
Filed: 19 Jul 16
Utility
Butene-1 polymer composition having a high melt flow rate
19 Jan 21
Roberta Marchini, Stefano Spataro, Emanuele Burgin, Roberta Pica
Filed: 3 Jul 17
Utility
Multilayer film comprising a polyolefin composition
4 Jan 21
Gianni Perdomi, Monica Galvan, Claudio Cavalieri
Filed: 2 May 18
Utility
Propylene based terpolymer
28 Dec 20
A propylene, ethylene, 1-butene terpolymer made from or containing a) from about 1.8 wt % to about 5.9 wt % of ethylene derived units; and b) from about 2.0 wt % to about 4.5 wt % of 1 butene derived units; and having i) a ratio of C2 wt %/C4 wt % in the range from about 0.9 to about 1.3; wherein C2 wt % is the weight percent of ethylene derived units and C4 wt % is the weight percent of 1-butene derived units; ii) a Melt flow rate (determined according to ISO 1133 230° C., 2.16 kg) in the range from about 1.0 to about 30.0 g/10 min; and iii) a xylene soluble fraction at 25° C. between about 10 wt % and about 30 wt %.
Roberta Marzolla, Paola Massari, Nicoletta Martini, Marco Ciarafoni, Tiziana Caputo
Filed: 13 Mar 16
Utility
Butene-1 copolymer tie layer in multilayer film structures having a low seal temperature and improved hot tack
26 Oct 20
Multilayer film (BOPP) structure containing at least: A) a skin (outer) layer substantially consisting of a crystalline low seal Initiation temperature propylene copolymer; B) a tie layer substantially consisting of a butene-1 copolymer having flexural modulus (MEF) of 75 MPa or less; C) a core layer substantially consisting of one or more polypropylene homopolymers designed for BOPP.
Michele Grazzi, Roberta Marchini, Giampaolo Pellegatti, Stefano Spataro
Filed: 5 May 14
Utility
Method for feeding a fluid to a gas phase polymerization reactor
5 Oct 20
Enrico Balestra, Tiziana Caputo, Massimo Covezzi, Maurizio Dorini, Antonio Mazzucco, Gabriele Mei, Ricardo Rinaldi
Filed: 14 Dec 17
Utility
Soft polyolefin composition
5 Oct 20
Roberta Marchini, Stefano Spataro, Stefano Pasquali, Gianluca Musacchi
Filed: 22 Mar 17
Utility
Process for the preparation of a dried powder
28 Sep 20
A method for preparing a dried powder is provided.
Harald Prang, Michael Chatterjee, Reinhard Kuehl, Alexander Seifert
Filed: 13 Feb 17
Utility
Polyolefin composition for fibers
7 Sep 20
Monica Galvan, Claudio Cavalieri, Jaume Marti Porqueres, Renaud Lemaire, Roberto De Palo
Filed: 19 Jun 18
Utility
Catalyst components for the polymerization of olefins
31 Aug 20
A process for the preparation of a solid catalyst component for the homo or copolymerization of olefins, wherein the solid catalyst component is made from or contains Mg, Ti, halogen and an electron donor selected from cycloalkyl ethers, wherein the process includes the steps of (a) dissolving a Mg based compound and a TiCl3 based compound in a liquid medium further made from or containing a cycloalkyl ether and a compound of formula R2OH where R2 is a C1-C20 hydrocarbon group, in which the Ti/Mg molar ratio ranges from 0.1 to 0.5, the cycloalkyl ether/Mg ratio ranges from 1 to 4 and the ROH/Mg molar ratio ranges from 1 to 4; and (b) adding, to the solution coming from step (a), SiCl4 in an amount such that the R2OH/SiCl4 molar ratio ranges from 0.5 to 1.5 and maintaining the temperature in the range 50-150° C. thereby precipitating the solid catalyst component particles.
Simona Guidotti, Tiziano Dall'Occo, Dario Liguori, Giampiero Morini
Filed: 24 Sep 17
Utility
Nucleated propylene polymer composition
31 Aug 20
Paola Massari, Andrea Felisati, Marco Izzi, Claudio Cavalieri, Marco Ciarafoni, Silvia Guerra, Roberto Pantaleoni, Federica Malizia
Filed: 4 Oct 17
Utility
Gas-phase process for the polymerization of propylene
3 Aug 20
A gas-phase process for the homopolymerization or copolymerization of propylene with other olefins, including carrying out the polymerization in the presence of a catalyst system made from or containing: (a) a solid catalyst component made from or containing Mg, Ti, halogen, an electron donor selected from 1.3-diethers and an olefin polymer in a specific amount; (b) an aluminum alkyl compound and (c) an external electron donor (ED) compound, wherein components (b) and (c) being employed in amounts such that the Al/(ED) molar ratio ranges from about 2 to about 200.
Giampiero Morini, Massimo Covezzi, Tiziano Dall'occo, Dario Liguori, Fabrizio Piemontesi, Gianni Vitale
Filed: 2 Aug 16
Utility
Plate comprising a polyolefin composition for 3D printer
3 Aug 20
Roberto De Palo, Claudio Cavalieri, Monica Galvan
Filed: 21 Sep 17