Patent application number | Description | Published |
20110062108 | PE MOULDING COMPOSITION FOR PRODUCING INJECTION-MOLDED SCREW CAP CLOSURES AND HIGH-STRENGHT SCREW CAP FOR CARBONATED BEVERAGES PRODUCES THEREWITH - The invention relates to a polyethylene moulding composition having a multimodal molecular mass distribution and comprising a first ethylene homopolymer fraction (I), a second ethylene copolymer fraction (II) and a third ethylene copolymer fraction (III). The moulding composition has a density at a temperature of 23° C. in the range from 0.945 to 0.953 g/cm | 03-17-2011 |
20110092656 | CATALYST SYSTEM FOR THE POLYMERIZATION OF OLEFINS - The present invention relates to catalysts systems for the polymerization of olefins CH | 04-21-2011 |
20110130527 | METHOD FOR TRANSITIONING BETWEEN INCOMPATIBLE OLEFIN POLYMERIZATION CATALYST SYSTEMS - A method for transitioning from a first to a second catalyst system for the olefin polymerization reaction in one reactor, wherein the first catalyst system is incompatible with the second catalyst system, is described. The method comprises the steps of a) discontinuing a first olefin polymerization reaction performed in the presence of the first catalyst system; and b) performing a second olefin polymerization reaction in the presence of the second catalyst system comprising catalyst components (A) and (B) producing, respectively, a first and a second polyolefin fraction, wherein the M | 06-02-2011 |
20110282013 | Process for Feeding a Catalyst in a Polymerization Reactor - A process for introducing a catalyst powder based on a titanium compound supported on magnesium halide into a gas-phase olefin polymerization reactor, characterized in that it comprises:
| 11-17-2011 |
20140243475 | POLYETHYLENE PROCESSES AND COMPOSITIONS THEREOF - Embodiments of the present disclosure relate to a method of preparing polyethylene compositions comprising polymerizing ethylene in a first gas-phase reactor and polymerizing ethylene in a second gas-phase reactor in the presence of hydrogen; wherein at least one of the first or second gas-phase reactors comprises a first and second polymerization zone; wherein a hydrogen pressure of the first and second polymerization zones are different such that at least a portion of the second ethylene cycles through the first and second polymerization zones and a gas mixture of each polymerization zone is partially or totally prevented from entering the other zone. | 08-28-2014 |
Patent application number | Description | Published |
20080199674 | Polyethylene Molding Composition for Producing Blown Films Having Improved Mechanical Properties and Processability - The invention relates to a polyethylene molding composition having a multimodal molar mass distribution particularly suitable for blow molding films having a thickness in the range from 8 to 200 μm. The molding composition has a density at a temperature of 23° C. in the range from 0.948 to 0.953 g/cm | 08-21-2008 |
20100301054 | POLYETHYLENE MOLDING COMPOSITION FOR PRODUCING HOLLOW CONTAINERS BY THERMOFORMING AND FUEL CONTAINERS PRODUCED THEREWITH - The present invention relates to a polyethylene molding composition which has a multimodal molar mass distribution and is particularly suitable for thermoforming to produce fuel containers having a capacity in the range from 20 to 200 I. The molding composition has a density at a temperature of 23° C. in the range from 0.948 to 0.953 g/cm | 12-02-2010 |
20110045295 | ADHESIVE POLYMER COMPOSITION - A novel adhesive composition suitable for composing multilayered coatings onto large, industrial equipment such as pipeline tubes is devised. The composition is a blend based on a polyethylene which determines the blend's favorable properties, which polyethylene itself can be used further in coating cables and for producing mouldings, especially rotomoulded articles. | 02-24-2011 |
20110171450 | Process for preparing a blown film from a polyethylene molding composition - The invention relates to a polyethylene molding composition having a multimodal molar mass distribution particularly suitable for blow molding films having a thickness in the range from 8 to 200 μm. The molding composition has a density at a temperature of 23° C. in the range from 0.948 to 0.953 g/cm | 07-14-2011 |
20110172362 | Process for preparing a polyethylene molding composition - The invention relates to a polyethylene molding composition having a multimodal molar mass distribution particularly suitable for blow molding films having a thickness in the range from 8 to 200 μm. The molding composition has a density at a temperature of 23° C. in the range from 0.948 to 0.953 g/cm | 07-14-2011 |
20110201769 | Copolymers Of Ethylene And At Least One Other 1-Olefin, And Process For Their Preparation - Ethylene copolymers composed of ethylene units and units composed of at least one other 1-olefin whose density is from 0.940 to 0.955 g/cm | 08-18-2011 |
20110212283 | Impact Resistant LLDPE Composition and Films Made Thereof - A novel PE material is devised showing excellent mechanical/optical properties and process ability, e.g. for film extrusion. The polyethylene of the invention is produced in one single e.g. gas phase reactor. | 09-01-2011 |
20110212315 | Impact Resistant LLDPE Composition and Films Made Thereof - A novel PE material is devised showing excellent mechanical/optical properties and process ability, e.g. for film extrusion. The polyethylene of the invention is produced in one single e.g. gas phase reactor. | 09-01-2011 |
20110217537 | Impact Resistant LLDPE Composition and Films Made Thereof - A novel PE material is devised showing excellent mechanical/optical properties and process ability, e.g. for film extrusion. The polyethylene of the invention is produced in one single e.g. gas phase reactor. | 09-08-2011 |
20110223406 | Impact Resistant LLDPE Composition and Films Made Thereof - A novel PE material is devised showing excellent mechanical/optical properties and process ability, e.g. for film extrusion. The polyethylene of the invention is produced in one single e.g. gas phase reactor. | 09-15-2011 |
20110230629 | Impact Resistant LLDPE Composition and Films Made Thereof - Method of polymerizing ethylene with C3-C20-olefine-comonomer, comprising the step of carrying out the olymerization in a single gas phase reactor with a mixed catalyst system herein the catalyst system has a catalyst mileage of higher than 6000 g polymer product/g catalyst. | 09-22-2011 |
20110251360 | Process for the Polymerization of Ethylene, and Ethylene Polymers Having Broad Molecular Weight Distribution and Long-Chain Branching - New ethylene polymers having broad molecular weight distribution and long-chain branching, above all at high molecular weight fractions; the polymers have strain hardening equal or higher than 1.4 (at constant elongational rate of 0.5 s | 10-13-2011 |
20110294957 | Method for Transitioning Between Incompatible Olefin Polymerization Catalyst Systems - A method for transitioning from a Ziegler-Natta to a Phillips catalyst system for the olefin polymerization reaction in one reactor, preferably a gas phase reactor, is described. The method comprises the steps of a) discontinuing a first olefin polymerization reaction performed in the presence of the Ziegler-Natta catalyst system; b) performing a second olefin polymerization reaction in the presence of a further catalyst system comprising catalyst components (A) and (B) producing, respectively, a first and a second polyolefin fraction, wherein the M | 12-01-2011 |
20110318559 | Films having improved mechanical properties - A blown film having a thickness from 8 to 200 μm and dart drop impact DDI of more than 400 g, comprising a polyethylene molding composition having a multimodal molar mass distribution; a density from 0.940 to 0.948 g/cm | 12-29-2011 |
20120148776 | Polyethylene for Rotomoulding - A novel polyethylene is devised which polyethylene is particularly advantageous for manufacturing rotomoulded articles. | 06-14-2012 |
20120148777 | Polyethylene for Rotomoulding - A novel polyethylene is devised which polyethylene is particularyl advantageous for manufacturing rotomoulded articles. | 06-14-2012 |
20120149834 | Polyethylene for Rotomoulding - A novel polyethylene is devised which polyethylene is particularly advantageous for manufacturing rotomoulded articles. | 06-14-2012 |
20120283369 | Polymerization process in the presence of an antistatic agent - Process for the polymerization of olefins at temperatures of from −20 to 200° C. and pressures of from 0.1 to 20 MPa in the presence of a polymerization catalyst and an antistatic agent, wherein
| 11-08-2012 |
20120283396 | Process for the preparation of a multimodal polyolefin polymer with improved hydrogen removal - Process for the preparation of a multimodal polyolefin polymer at temperatures of from 40 to 150° C. and pressures of from 0.1 to 20 MPa in the presence of a polymerization catalyst in a first and a second polymerization reactor connected in series, wherein further polymerization reactors can be connected to said reactors upstream or downstream of said reactors, in which in the first polymerization reactor a first polyolefin polymer is prepared in suspension in the presence of hydrogen and in the second polymerization reactor a second polyolefin polymer is prepared in the presence of a lower concentration of hydrogen than in the first polymerization reactor, comprising
| 11-08-2012 |
20130116392 | Polyethylene Composition And Method For Obtaining Same - New plastomer material for use in automotive parts such as bumpers is devised here, which is a novel polyethylene produced by a gas phase process. | 05-09-2013 |
20130158213 | PROCESS FOR THE PREPARATION OF A POLYOLEFIN POLYMER WITH IMPROVED WAX DEPOSITION - Process for the preparation of a polyolefin polymer by continuously polymerizing one or more olefin monomers in suspension at temperatures of from 40° C. to 120° C. and pressures of from 0.1 to 10 MPa in the presence of a polymerization catalyst in at least one polymerization reactor, comprising a) withdrawing a suspension of solid polyolefin particles in a suspension medium from the polymerization reactor, wherein the suspension has a temperature of from 65° C. to 120° C.; b) feeding the suspension withdrawn from the polymerization reactor to a moderating vessel; c) keeping the suspension in the moderating vessel at a temperature of from 60° C. to 85° C. for a time sufficiently long that the mean residence time of the suspension in the moderating vessel is at least 5 min; d) withdrawing suspension from the moderating vessel; e) cooling the suspension withdrawn from the moderating vessel to a temperature of from 20° C. to 55° C.; and f) mechanically separating the solid polyolefin particles from the liquid suspension medium, and method for controlling the content of hydrocarbons with from 14 to 300 carbon atoms in a polyolefin polymer prepared by polymerizing one or more olefin monomers in suspension. | 06-20-2013 |
20130274427 | PROCESS FOR CONTROLLING THE RELATIVE ACTIVITY OF ACTIVE CENTERS OF CATALYST SYSTEMS COMPRISING AT LEAST ONE LATE TRANSITION METAL CATALYST COMPONENT AND AT LEAST ONE ZIEGLER CATALYST COMPONENT - A method of controlling the polymer composition of an ethylene copolymer in a process for preparing ethylene copolymers by copolymerizing ethylene and at least one other olefin in the presence of a polymerization catalyst system comprising at least one late transition metal catalyst component (A) having a tridentate ligand which bears at least two ortho, ortho′-disubstituted aryl radicals, at least one Ziegler catalyst component (B), and at least one activating compound (C) by varying the polymerization temperature, a process for copolymerizing ethylene and at least one other olefin in the presence of such a polymerization catalyst system comprising utilizing the controlling method, a method for altering the polymer composition of an ethylene copolymer obtained by copolymerizing ethylene and at least one other olefin in the presence of such a polymerization catalyst system by varying the polymerization temperature and a method for transitioning from one ethylene copolymer grade to another by using the method for altering the polymer composition. | 10-17-2013 |
20130317185 | POLYETHYLENE POLYMERISATION IN GAS PHASE REACTOR - A novel gas phase polymerisation method is devised, for polymerisation of low and ultralow density polyethylene. | 11-28-2013 |
20140045988 | NOVEL POLYMER COMPOSITION FOR USE IN BLOW MOULDING - A novel polymer composition is described comprising ethylene homopolymers and/or copolymers of ethylene with C | 02-13-2014 |
20140309384 | MULTISTAGE PROCESS FOR THE POLYMERIZATION OF OLEFINS - Process for transferring polyolefin particles from a first gas-phase polymerization reactor to a second gas-phase polymerization reactor in a multistage polymerization of olefins carried out in at least two serially connected gas-phase polymerization reactors, | 10-16-2014 |