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WO/2010/058849A1 |
Provided are catalyst components which enable the production of industrially useful copolymers which are composed of an α-olefin and a (meth)acrylic monomer or of two kinds of α-olefins and a (meth)acrylic monomer and which have each a...
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WO/2010/057925A1 |
The present invention relates to a method for optimizing the supply of a catalyst slurry during a polymerization process for preparing a polyolefin in a polymerization reactor (1), whereby said slurry consists of solid catalyst particles...
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WO/2010/059474A1 |
Olefin-based polymers containing boron and aluminum at a B: Al molar ratio of less than one are useful in the manufacture of medium and high voltage wire and cable sheath coverings. Such polymers exhibit good dielectric properties, e.g.,...
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WO/2010/057905A1 |
Olefins are oligomerised by bringing at least one C2 to C8 olefin into contact with a nickel-containing heterogeneous catalyst. The catalyst is conditioned before contact with the olefin by passing an inert gas flow over the same, until ...
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WO/2010/037653A9 |
The present invention relates to an apparatus and a process for polymerisation, and, in particular, provides an apparatus for gas phase fluidised bed polymerisation of olefins, which apparatus comprises: A) a first section which is an up...
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WO/2010/055652A1 |
Disclosed are: a solid polymethylaluminoxane composition which does not utilize silica or the like, has the form of relatively fine particles, has more uniform particle sizes, and exhibits a high polymerization activity when used in the ...
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WO/2010/054732A1 |
The present inventions relates to a process for producing polyethylene compositions comprising polymerising polyethylene resins in a cascaded multi-stage reaction in which the reaction steps are performed in at least two slurry phase rea...
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WO/2010/052237A1 |
Improved process for the preparation of an unsupported, heterogeneous olefin polymerisation catalyst, comprising an organometallic compound of a transition metal of Group 3 to 10 of the Periodic Table (IUPAC) or of an actinide or lanthan...
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WO/2010/052239A1 |
Improved process for the preparation of an unsupported, heterogeneous olefin polymerization catalyst system, comprising an organometallic compound of a transition metal of Group 3 to 10 of the Periodic Table (IUPAC) or of an actinide or ...
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WO/2010/052267A1 |
The present invention relates to a process for the preparation of a polyolefϊn, wherein ethylene and/or propylene are polymerised in a liquid or supercritical hydrocarbon reaction medium of a polymerisation reactor R1 in the presence of...
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WO/2010/051658A1 |
A catalyst for homopolymerizing and copolymerizing propylene and its preparation and use. The catalyst component includes titanium compound containing at least one Ti-halogen bond and at least two kinds of electron donor compounds A and ...
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WO/2010/053644A1 |
This invention relates to processes for producing an isotactic propylene homopolymer having more than 15 and less than 100 regio defects (sum of 2,1-erythro and 2,1-threo insertions and 3,1-isomerizations ) per 10,000 propylene units; a ...
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WO/2010/049169A1 |
An ethylene polymer with a density of less than 955 kg/m3 obtained by polymerisation with a single-site catalyst and having a shear thinning index SHI2.7/210 of less than 5 wherein ethylene polymer comprises two components.
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WO/2010/049168A1 |
A multimodal ethylene polymer with a density of less than 950 kg/m3 obtained by polymerisation with a single-site catalyst and having an MFR21 in the range of 10 to 20 g/10min; a shear thinning index SHI2.7/210 of at least 4; and prefera...
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WO/2010/049167A1 |
A multimodal ethylene polymer with a density of less than 950 kg/m3 obtained by polymerisation with a single-site catalyst and having an MFR21 in the range of 2 to 15, a shear thinning index SHI2.7/210 of between 5 and 10.
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WO/2010/050256A1 |
Disclosed is a novel catalyst component for production of a crystalline α-olefin polymer or α-olefin/(meth)acrylate copolymer having few branches, especially for production of a polymer having a high molecular weight. Also disclosed i...
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WO/2010/048023A2 |
Provided herein are methods for preparing vinylidene-terminated polyolefins. Further, provided herein are novel sulfide-terminated polyolefins of the formula: wherein R1 is a polyolefin group and R2 is hydrocarbyl; and methods for produc...
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WO/2010/042390A1 |
Disclosed is an ethylene-based polymer with a density from about 0.90 to about 0.94 in grams per cubic centimeter, with a molecular weight distribution (Mw/Mn) from about 2 to about 30, a melt index (I2) from about 0.1 to about 50 grams ...
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WO/2010/040235A1 |
A catalyst composition suitable for quasi-living or living polymerization of ethen and copolymerization of ethene and other olefins is described. This composition is prepared from (i) a sterically-hindered metallocene of composition (LmC...
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WO/2010/040964A1 |
The invention relates to an alkyl (meth)acrylate and unsaturated epoxide crosslinked ethylene polymer. The invention also relates to a semiconducting composition including a conducting compound and an alkyl (meth)acrylate and unsaturated...
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WO/2010/039948A2 |
Catalyst compositions for the polymerization of olefins having improved flowability properties are provided.
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WO/2010/037652A1 |
The present invention relates to methods useful for the production of polymer powder, and in particular to a method for transitioning from a first process for production of a first polymer to a second process for the production of a seco...
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WO/2010/039724A1 |
Polymer articles and processes of forming the same are described herein. The processes generally include providing an ethylene based polymer, blending the ethylene based polymer with a modifier to form modified polyethylene and forming t...
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WO/2010/034664A1 |
Prepolymerized catalyst component for the polymerization of olefins CH2=CHR, wherein R is hydrogen or a C1-C12 hydrocarbyl group, comprising a solid catalyst component characterized by comprising Mg, Ti halogen and an electron donor (ID)...
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WO/2010/034464A1 |
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.
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WO/2010/031984A1 |
The invention relates to a polymer obtained by polymerizing olefins having 6 to 9 carbon atoms and partially derived from renewable resources. In particular, the polymer according to the invention can be derived from vegetable oil or ani...
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WO/2010/027912A1 |
A flash chamber sized to receive the effluent discharged from a polyolefin reactor during normal operation of the reactor and during a reactor dump, advantageously eliminating a reactor dump tank or alternate flash tank from the equipmen...
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WO/2010/026184A1 |
A solid catalyst component for polymerizing at least one olefin comprising Mg, Ti, at least one halogen, and at least one electron donor selected from arylsulfonates and arylsulfonyl derivatives of a specified formula. The solid catalyst...
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WO/2010/026091A1 |
A process for the polymerisation of olefins in the presence of a solid catalyst component and a catalyst activator, the process being performed in a gas-phase reactor having interconnected polymerization zones, where the growing polymer ...
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WO/2010/023906A1 |
Disclosed are: a 4-methylpentene-1 polymer having a syndiotactic structure, which comprises a constituent unit X derived from 4-methylpentene-1 and a constituent unit Y derived from at least one member selected from ethylene and an α-ol...
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WO/2010/022228A2 |
The present invention generally relates to metal-ligand complexes, catalysts comprising or prepared from the metal-ligand complexes, processes of catalyzing olefin polymerization reactions with the catalysts to prepare polyolefins, polyo...
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WO/2010/020575A1 |
A solid catalyst component comprising Ti, Mg, halogen and a couple of monofunctional electron donor compounds MD1 and MD2 selected from esters and ethers, said donors being present in amounts such that the molar ratio MD1/MD2 ranges from...
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WO/2010/021304A1 |
To efficiently obtain an a-olefin polymer that has a high melting point and high molecular weight. Provided is a method for manufacturing an olefin polymer by polymerizing at least one kind of monomer selected from a-olefins with 2 or m...
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WO/2010/021762A1 |
The present disclosure provides a Ziegler-Natta catalyst composition comprising a procatalyst, a cocatalyst and a mixed external electron donor comprising a first selectivity control agent, a second selectivity control agent and an activ...
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WO/2010/018789A1 |
Disclosed is a method for producing an elastic fiber comprising: a step of melt-extruding a raw material at 100-300˚C using a spinning nozzle; a step of cooling the melt-extruded fiber in water bath of 0-50˚C; and a step of winding up ...
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WO/2010/017393A1 |
Methods of preparing a polymerization catalyst component is provided, in which a magnesium component, a Lewis acid solubilizing component, a titanium compound, optionally a transition metal compound different than the titanium compound, ...
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WO/2010/014344A2 |
The present application relates to a new catalyst system for the polymerization of olefins, comprising a new ionic activator having the formula: [R1R2R3AH]+ [Y]", wherein [Y]- is a non- coordinating anion (NCA), A is nitrogen or phosphor...
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WO/2010/014320A1 |
Disclosed are 1,8-naphthyl diaryloates, methods of making 1,8-naphthyl diaryloates, methods of using 1,8-naphthyl diaryloates, solid titanium catalyst components, catalyst systems containing solid titanium catalyst components, methods of...
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WO/2010/014371A1 |
Methods and system for in-situ measurement of polymer growth within an olefin polymerization reactor are provided. The method includes polymerizing one or more olefins within a reactor at a first temperature sufficient to deposit a polym...
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WO/2010/012946A2 |
The invention relates to a method for production of grafted polyethylene comprising the following steps: a) fermentation of primary renewable material with optional purification to give at least one alcohol chosen from ethanol or a mixtu...
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WO/2010/009827A1 |
The present invention relates to a polypropylene composition comprising a propylene homopolymer or a propylene random copolymer having at least one comonomer selected from alpha-olefins with 2 or 4-8 carbon atoms and a comonomer content ...
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WO/2010/011435A1 |
Pyridyldiamido transition metal complexes are disclosed for use in alkene polymerization. The ligands are tridentate with an NNN configuration. The general formula is : Formula (I) wherein : M is a Group 3, 4, 5, 6, 7, 8, 9, 10, 11 or 12...
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WO/2010/009860A1 |
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 compri...
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WO/2010/009880A1 |
The invention discloses a novel product which prevents oil migration by means of polyolefin packaging means. The product comprises packaging means consisting of, or comprising, polyolefins and preparations contained in the packaging mean...
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WO/2010/008515A1 |
The present invention provides polymerization catalyst compositions employing half-metallocene compounds with a heteroatom-containing ligand bound to the transition metal. Methods for making these hybrid metallocene compounds and for usi...
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WO/2010/008964A1 |
Provided are various compositions, including but not limited to a bimodal polyethylene composition having a density of 0.940 g/cc or more, the composition comprising a high molecular weight polyethylene component and a low molecular weig...
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WO/2010/008890A2 |
Provided herein are methods for preparing a polyolefin containing one or more exo-olefinic end groups on the polyolefin chain, comprising quenching an ionized polyolefin with an alkoxysilane or an ether. In some embodiments, the methods ...
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WO/2010/006756A1 |
The invention relates to a catalyst for the production of polyethylene comprising a solid reaction product obtained by reaction of: (a) a hydrocarbon solution comprising (1) an organic oxygen containing magnesium compound and (2) an orga...
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WO/2010/003650A1 |
The invention relates to a process for polymerizing a polymer in the presence of a mixture of at least two chain transfer agents, which mixture comprises: a polar chain transfer agent (polar CTA), and a non-polar (non-polar CTA).
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WO/2010/005072A1 |
Disclosed is a resin composition provided with excellent mold releasability and anti-blocking properties. Specifically disclosed is a 4-methyl-1-pentene polymer-containing resin composition which contains 0.01-10 parts by mass of a 4-met...
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