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WO/2009/092748A2 |
The invention relates to the use of polyolefins having isotactic structural elements in flooring materials, especially in carpets or artificial turf.
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WO/2009/094505A1 |
Disclosed is a catalyst injection nozzle that comprises an outer tube with an open end, a nozzle tip with a diameter connected to the outer tube open end, an orifice connected to the nozzle tip internal to the outer tube, an internal mix...
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WO/2009/091480A2 |
In a process for producing a propylene-based olefin homopolymer or copolymer, a monomer composition comprising propylene is contacted with a polymerization catalyst system under homogeneous polymerization conditions (such as solution, su...
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WO/2009/091334A1 |
The present invention relates to a self-assembled olefin polymerization catalyst comprising a transition metal compound according to formula (I) LqMmXnwherein M is a transition metal selected from the group consisting of Group 3-11 of th...
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WO/2009/088701A1 |
A process for producing an olefin-based polymer, said process comprising polymerizing at least one monomer, in the gas phase, or in a slurry process, in the presence of at least the following components: A) at least one catalyst; B) at l...
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WO/2009/085101A2 |
A method comprising contacting a support with one or more chromium-containing compounds and one or more boria precursors to provide a catalyst precursor, and activating the catalyst precursor to provide a polymerization catalyst.
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WO/2009/085129A1 |
The present invention provides polymerization catalyst compositions employing novel dinuclear metallocene compounds. Methods for making these new dinuclear metallocene compounds and for using such compounds in catalyst compositions for t...
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WO/2009/085649A1 |
A catalyst composition for the polymerization of propylene is provided. The catalyst composition includes one or more Ziegler-Natta procatalyst compositions having one or more transition metal compounds and an internal electron donor, on...
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WO/2009/085124A1 |
The present invention provides polymerization catalyst compositions employing novel dinuclear metallocene compounds. Methods for making these new dinuclear metallocene compounds and for using such compounds in catalyst compositions for t...
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WO/2009/085126A1 |
The present invention provides polymerization catalyst compositions employing novel dinuclear metallocene compounds. Methods for making these new dinuclear metallocene compounds and for using such compounds in catalyst compositions for t...
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WO/2009/085109A2 |
Various methods and systems for removing- particulates from a cycle gas stream, e.g., in a reactor system, are provided. In certain embodiments, the methods are performed in conjunction with a polymerization reactor system such as a gas-...
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WO/2009/083435A1 |
The invention relates to a nickel complexing compound of the general formula (I), wherein: R1 denotes an anionic carbon ligand, preferably allyl, substituted allyl, methallyl, benzyl, or substituted benzyl; R2-R21, which can be identical...
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WO/2009/085100A2 |
A method of preparing a catalyst comprising aging a silica support in an alkaline solution to produce an alkaline aged silica support, removing at least a portion of the alkaline solution from the alkaline aged silica support to produce ...
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WO/2009/080359A1 |
A multistage process for the homo or copolymerization of ethylene carried out in the presence of a catalyst system comprising at least one polymerization catalyst (A) based on a late transition metal component having a tridentate ligand ...
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WO/2009/080237A1 |
Catalyst system for olefin polymerization comprising (a) at least one phenanthroline-comprising iron complex, (b) an organic or inorganic support, (c) optionally one or more activators, (d) optionally one or more metal compounds of group...
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WO/2009/080363A1 |
The invention relates to a reactor system for the catalytic polymerization of olefin monomer and optionally comonomer (s), comprising one or more inlets for olefin monomer, catalyst, optionally for comonomer, chain growth controllers or ...
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WO/2009/082556A1 |
This invention relates to a transition metal catalyst compound represented by the structure: Formula(I) wherein: each X is, independently, a hydride, a halogen, a hydrocarbyl, a substituted hydrocarbyl, a halocarbyl, or a substituted hal...
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WO/2009/080362A1 |
The invention relates to a reactor system for the catalytic polymerization of olefin monomer and optionally comonomer (s), comprising one or more inlets for olefin monomer, catalyst, optionally for comonomer, chain growth controllers or ...
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WO/2009/080497A2 |
Catalyst component having average particle size equal to or lower than 40 μm comprising a magnesium halide, a titanium compound having at least a Ti-halogen bond and at least two electron donor compounds one of which being present in an...
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WO/2009/082451A2 |
A method of performing a polymerization reaction in a gas phase polymerization reactor to produce a bimodal polymer while controlling activity of a bimodal polymerization catalyst composition in the reactor by controlling concentration o...
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WO/2009/080360A1 |
The invention relates to a reactor system and process for the catalytic polymerization of olefin monomer and optionally comonomer(s), comprising one or more inlets for olefin monomer, catalyst, optionally for comonomer, chain growth cont...
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WO/2009/080660A1 |
A process for the gas-phase polymerization of α-olefms carried out in two interconnected polymerization zones, wherein the growing polymer particles flow through the first of said polymerization zones (riser) under fast fluidization con...
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WO/2009/080568A2 |
Spherical adducts comprising a MgCl2, an alcohol ROH in which R is a C1-C10 hydrocarbon group, present in a molar ratio with MgCl2 ranging from 0.5 to 5 and less than 5% wt, based on the total weight of the adduct, of a solid inorganic c...
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WO/2009/080216A1 |
The present invention relates to monohydroindacenyl complexes as active catalytic components in the copolymerization of ethylene. The complexes are suitable for direct preparation of ethylene copolymers having a narrow molecular distribu...
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WO/2009/080710A1 |
A solution process for polymerizingone or more α-olefins of formula CH2=CHR, where R is H or an alkyl radical C1-12,to produce a polyolefin soluble in the reaction medium, the process comprising: a) polymerizing said one or more α-olef...
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WO/2009/080236A1 |
Phenanthroline-comprising complexes and catalyst systems obtained therefrom, and also their use in the polymerization of olefins.
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WO/2009/078902A1 |
A process to remove metal contaminants from a hydrocarbon solution of polyethylene is disclosed. The process comprises adding a primary alcohol and a ß-diketone to a solution of polyethylene at a temperature within the range of 120°C t...
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WO/2009/077185A1 |
A continuous gas-phase process for the polymerization of alpha-olefins, in particular ethylene, comprising passing an alpha-olefin monomer stream through an oil filter in order to reduce the amount of oil to less than 8 ppm, and polymeri...
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WO/2009/077115A1 |
The present invention relates to a process for preparing transition metal compounds, in particular ansa-bisindenyl-metallocenes having nitrogen, phosphor, sulfur or oxygen comprising substituents, the corresponding transition metal compo...
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WO/2009/077467A1 |
The present invention relates to a process for the production of propylene homo- and copolymers having a broad molecular weight distribution and a low ash content, with 'ash' denoting aluminium as well as residues of catalyst, cocatalyst...
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WO/2009/076733A1 |
The present invention relates to a suspension polymerization process for the production of ultra high molecular weight polyethylene, wherein the operation is carried out in at least two reactors of the CSTR type (continuous stirring tank...
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WO/2009/076152A1 |
A catalyst system is disclosed that comprises a heterogeneous catalyst and a single site catalyst impregnated on the surface of the heterogeneous catalyst. From this catalyst system, a pre-polymerized polyolefm catalyst can be produced b...
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WO/2009/074316A2 |
The present invention relates to the covalent anchorage of non-coordinating anions on mineral supports to prepare activating supports for the polymerisation of ethylene and alpha-olefins and wherein the activating species is provided by ...
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WO/2009/071461A1 |
Use of a Ziegler-Natta procatalyst which contains a trans-estehfication product of a lower alcohol and a phthalic ester for the production of reactor grade thermoplastic polyolefins with improved paintability, characterized in that the p...
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WO/2009/072833A2 |
The present invention provides a non-metallocene transition metal compound that is easily produced, includes a tetrazol group having the high polymerization activity and high temperature stability in the polymerization of olefins, and a ...
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WO/2009/069483A1 |
[MEANS FOR SOLVING PROBLEMS] A solid titanium catalyst ingredient (I) comprising titanium, magnesium, a halogen, a specific cyclic ester compound (a), and a specific cyclic ester compound (b); a catalyst for olefin polymerization which c...
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WO/2009/069822A1 |
Disclosed is a catalyst for use in the polymerization of an olefin, which is produced by contacting a specific transition metal compound (A1), a specific transition metal compound (A2) and a specific solid catalyst component (B) with one...
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WO/2009/068576A1 |
Catalyst in form of solid particles, wherein the particles - have a specific surface area of less than 20 m2/g, comprise a transition metal compound which is selected from one of the groups 4 to 10 of the periodic table (IUPAC) or a comp...
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WO/2009/069973A2 |
The present invention relates to a catalytic composition for producing a 1 -alkene-acrylate copolymer that includes a metal nano catalyst, and a method for producing a 1-alkene-acrylate copolymer. In the catalytic composition for produci...
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WO/2009/068577A1 |
The present invention relates to a propylene random copolymer, comprising comonomers selected from the group consisting of ethylene, C4 to C20 alpha-olefins, and any combination thereof, wherein the propylene random copolymer (a) has a c...
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WO/2009/067201A1 |
A method for making a polyolefin composition according to one embodiment includes altering the concentration of the chain transfer agent present in the reactor to control the HMW and LMW fractions of the polyolefin composition.
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WO/2009/065677A1 |
The present invention relates to a process for polymerisation of ethylene, in particular a process which comprises using a catalyst system comprising comprising a catalyst system comprising: i) a solid catalyst comprising Ti, Mg and halo...
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WO/2009/064482A1 |
Polymerization catalyst systems including three or more catalyst compounds are provided. Methods for olefin polymerization including the aforementioned catalyst systems are also provided.
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WO/2009/064404A2 |
Olefin polymerization catalyst systems including a high molecular weight catalyst compound and a low molecular weight catalyst compound, and methods of making same are provided. High molecular weight catalysts include metallocene catalys...
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WO/2009/064452A2 |
An ethylene polymer including units derived from ethylene, at least one other alpha-olefin comonomer, and at least one diene, and having at least one of certain properties disclosed herein.
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WO/2009/064411A2 |
Methods for the removal of impurities, for example, carbon monoxide, from polymerization feed streams are provided.
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WO/2009/063084A2 |
The invention relates to a process for the preparation of ultra high molecular weight polyethylene comprising the steps of: (a) supporting a catalyst onto a support at a temperature of between -8O C and 100 C, said catalyst comprising an...
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WO/2009/061361A1 |
A flexible hose having a non-fluorinated rubber inner tube, a non-fluorinated rubber outer cover, an intermediate barrier layer consisting essentially of ethylene- vinyl alcohol copolymer (EVOH) having an ethylene content less than 30 mo...
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WO/2009/061601A2 |
Apparatus and methods for gas phase polymerization are provided. The method can include polymerizing one or more olefins at gas phase conditions in a reactor comprising one or more process exposed surfaces in the presence of a catalyst s...
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WO/2009/059968A1 |
This invention is related to the field of olefin polymerisation in double loop reactors and especially to the polymerisation of olefins with very active catalyst systems. It discloses a method for reducing blockage when transferring poly...
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