97 patents
Utility
Composite catalyst for polyolefin depolymerization
16 Jan 24
Catalytic compositions for depolymerizing polyolefin-based waste material into useful petrochemical products and methods of use are described.
Sandor Nagy, Daniel F. White, Christopher D. Smith, David L. Ramage, Diego Brita, Noel C. Hallinan
Filed: 3 Dec 21
Utility
Catatlyst components for the polymerization of olefins
16 Jan 24
Alessandro Mignogna, Dario Liguori, Giampiero Morini
Filed: 24 Jun 20
Utility
Polyethylene composition for films
19 Dec 23
Gerhardus Meier, Ulf Schueller, Andreas Maus, Harilaos Mavridis
Filed: 4 Sep 19
Utility
Fiber comprising propylene ethylene random copolymer
12 Dec 23
Roberto De Palo, Davide Tartari, Monica Galvan, Claudio Cavalieri, Isabella Maria Vittoria Camurati
Filed: 26 May 20
Utility
Random propylene-ethylene copolymers
5 Dec 23
Gianpiero Ferraro, Gianni Vitale, Fabrizio Piemontesi, Benedetta Gaddi, Gianni Collina, Giampiero Morini, Caroline Cathelin, Marco Ciarafoni, Claudio Cavalieri
Filed: 12 Aug 19
Utility
Suspension process for preparing ethylene copolymers in a reactor cascade
5 Dec 23
A process for preparing a multimodal ethylene copolymer in suspension in a reactor cascade including a first polymerization reactor and subsequent polymerization reactor(s) including polymerizing ethylene and C3-C12-1-alkenes and forming a suspension of multimodal ethylene copolymer particles in a suspension medium made from or containing a diluent, transferring the suspension into a separator, wherein the suspension is separated into multimodal ethylene copolymer particles and recovered suspension medium, purifying part of the recovered suspension medium for producing purified components of the recovered suspension medium, and recycling part of the purified components of the recovered suspension medium to the first polymerization reactor of the reactor cascade, wherein the purified components of the recovered suspension medium recycled to the first polymerization reactor and made from or containing the diluent, undergo catalytic hydrogenation before being introduced into the first polymerization reactor.
Elke Damm, Reinhard Kuehl, Rodrigo Carvajal
Filed: 19 Jun 19
Utility
Core-skin fiber comprising propylene ethylene random copolymer
14 Nov 23
Roberto De Palo, Renaud Lemaire, Jaume Marti Porqueres
Filed: 26 May 20
Utility
Polypropylene composition and molded article
7 Nov 23
Takeshi Nakajima, Kunio Yamamoto, Masashi Uchida
Filed: 17 Oct 19
Utility
Compositions with increased electrical conductivity
7 Nov 23
Thermoset bulk molding compounds (BMC) useful for making electrically conductive components such as bipolar plates for fuel cells are described.
John E. Stroh, Jody D. Riddle
Filed: 6 Jul 21
Utility
Supported metal oxides as depolymerization catalysts
26 Sep 23
Methods of depolymerizing polyolefin-based material into useful petrochemical products using supported metal oxides and heat are described.
Sandor Nagy, Daniel F. White, Christopher D. Smith, Xueyong Yang, David L. Ramage
Filed: 29 Oct 21
Utility
Method for monitoring and controlling a polymerization process
5 Sep 23
A method for monitoring and controlling the polymerization in a polymerization vessel by using a camera viewing unit to (a) detect features of the polymer particles, or the particles' environment, (b) compare the features to pre-defined acceptable values of these features or the environment, and (c) if a variation from the pre-defined values is detected, act on process parameters to reduce or eliminate the variation.
Tiziana Caputo, Antonio Mazzucco, Nicolo Arich De Finetti, Marco Bocchino
Filed: 21 Jan 20
Utility
Compositions obtained from recycled polyolefins
25 Jul 23
Roberto De Palo, Claudio Cavalieri
Filed: 5 Nov 18
Utility
Propylene terpolymer
25 Jul 23
Paola Massari, Claudio Cavalieri, Caroline Cathelin, Davide Tartari, Marco Ciarafoni, Roberto Pantaleoni
Filed: 4 Sep 19
Utility
Permeable polymer film
28 Mar 23
Paola Massari, Andrea Felisati, Marco Izzi, Paolo Bassi, Caroline Cathelin, Michele Grazzi, Claudio Cavalieri
Filed: 30 Aug 18
Utility
Pellet drying and degassing method
10 Jan 23
Method for the preparation of dried polymer pellets in a facility having a dryer with a first chamber and a mechanical agitator, and the facility further having a degassing silo with a second chamber, the method includes the steps of guiding a drying gas flow made from or containing a first gas mixture for drying wet polymer pellets into the first chamber, transferring the dried polymer pellets into the second chamber, guiding a second gas mixture for degassing the dried polymer pellets into the second chamber thereby transforming the second gas mixture into a third gas mixture and guiding a portion of the third gas mixture into the first chamber; and process for manufacturing LDPE pellets.
Giulia Mei, Juergen Mohrbutter, Dieter Littmann, Christoph Wolf, Andre-Armand Finette, Michael Deuerling, Giuseppe Penzo
Filed: 21 Jun 18
Utility
Multi-reactor slurry polymerization process
13 Dec 22
A slurry polymerization process for the preparation of polyethylene in a reactor cascade of two or more polymerization reactors wherein monomers are polymerized in the polymerization reactors which include a reactor outlet arranged in each reactor bottom for feeding a reactor slurry to a subsequent polymerization reactor and for emptying the polymerization reactor.
Peter Rohrbach, Juergen Perzlmeier
Filed: 2 Jan 18
Utility
Supported catalyst system
6 Dec 22
A nano platelet gibbsite treated with compound of formula (ORa)3Si—Rb or of formula Rc—COOH wherein Ra equal to or different from each other is a C1-C10 alkyl radical; Rb is a C5-C30 hydrocarbon radical and Rc is a C5-C30 hydrocarbon radical is used as a catalyst support.
Shahram Mihan, Heike Gregorius, Volker Fraaije, Rolf Mulhaupt, Fan Zhong
Filed: 5 Oct 18
Utility
Polymerization process including discharging polyolefin particles from a gas-phase polymerization reactor
22 Nov 22
A process for preparing an olefin polymer, including the steps of forming a particulate olefin polymer in a gas-phase polymerization reactor in the presence of a C3-C5 alkane as polymerization diluent, separating discharged polyolefin particles from concomitantly discharged gas at a pressure from 1 to 2.2 MPa, degassing the polyolefin particles at a pressure from 0.1 to 0.4 MPa with a gas made from or containing a C3-C5 alkane; and transferring the separated gas and the gas from the degassing to a work-up unit operated at a pressure from 0.001 to 0.2 MPa below the pressure of the separation, wherein the gas for degassing is continuously received from the work-up unit.
Gabriele Mei, Giulia Mei, Giuseppe Penzo
Filed: 2 Aug 18
Utility
Polyethylene composition having environmental stress cracking resistance
1 Nov 22
Diana Doetsch, Bernd Lothar Marczinke, Gerhardus Meier, Ulf Schueller, Claudio Fibla, Rainer Sattel, Peter Bisson
Filed: 12 Dec 18
Utility
Polethylene composition having high swell ratio
25 Oct 22
Diana Doetsch, Bernd Lothar Marczinke, Gerhardus Meier, Ulf Schueller, Rainer Sattel, Peter Bisson
Filed: 30 Oct 17