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WO/2011/051367A1 |
Process for polymerising, in a loop reactor, at least one olefin monomer in a liquid diluent to produce a slurry comprising solid particulate olefin polymer and said diluent, wherein the ratio between the actual volumetric solids concent...
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WO/2011/051371A1 |
The present invention relates to the field of ethylene polymerisation with a supported late transition metal catalyst system.
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WO/2011/052757A1 |
The disclosed method for manufacturing a propylene polymer uses a horizontal polymerisation reactor which is internally equipped with an agitator which rotates around the horizontal axis thereof. Propylene, or propylene and an α-olefin ...
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WO/2011/050565A1 |
A supported non-metallocene catalyst, manufacturing method and application thereof are provided. The manufacturing method of said supported non-metallocene catalyst comprises:(a) dissolving a magnesium compound and a non-metallocene comp...
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WO/2011/050566A1 |
A supported non-metallocene catalyst and preparation method thereof are provided. The said preparation method comprises the following steps: dissolving a magnesium compound and a non-metallocene complex into a solvent to obtain a magnesi...
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WO/2011/049349A2 |
The present invention provides a method for preparing a metallocene-supported catalyst to be used in preparing polyolefins, to a metallocene-supported catalyst prepared by the method, and to a method for preparing polyolefins using the m...
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WO/2011/047967A1 |
A catalyst component for the polymerization of olefins obtainable by: (a) reacting a Mg(OR1)(OR2) compound, in which R1 and R2 are identical or different and are each an alkyl radical having 1 to 10 carbon atoms, with a tetravalent trans...
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WO/2011/047464A1 |
Single site reactor/catalyst continuity in a dispersed phase reaction in terms of initial activation and subsequent deactivation may be improved by treating an inorganic oxide support with a metal salt selected from the group consisting ...
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WO/2011/047522A1 |
A catalyst component for olefin polymerization is disclosed, which comprises at least one diol ester type electron donor compound (a) and at least one diether type electron donor compound (b) among others, wherein the molar ratio of a to...
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WO/2011/044760A1 |
A catalyst component for olefin polymerization is disclosed, which comprises a reaction product of the following components: (1) spheric carrier; (2) titanium compound; and optionally, (3) electron donor, wherein the spheric carrier comp...
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WO/2011/045452A1 |
The invention relates to a method for the production of elements for closures, such as frames, windows, doors, partitions and the like, comprising the use of rotomoulding techniques. The method includes the construction of a mould specia...
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WO/2011/046103A1 |
Provided are a polypropylene resin and a polypropylene resin composition that contains the aforementioned polypropylene resin and is used in foam injection molding. The provided polypropylene resin and propylene resin composition have ex...
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WO/2011/044761A1 |
A spherical magnesium compound comprises the reaction product of no less than the following components: (a) magnesium halide having the formula MgX2-nRn, in which X is, independently, chloride or bromine, R is C1-C14 alkyl, C6-C14 aryl, ...
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WO/2011/046759A1 |
A process for reducing the level of residual catalyst comprising one or more 1-halo-2-methylpropanes and a Group 13 metal catalyst from a crude polyolefins product, the process comprising contacting the crude organic product with a solid...
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WO/2011/042269A1 |
Solid adducts comprising a MgCl2, ethanol and a compound (A), said compounds being present in molar ratios defined by the following formula MgCl2(EtOH)n(A)p in which n is from 0.1 to 6, p ranges from 0.001 to 0.5 and A is a compound sele...
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WO/2011/040958A1 |
A modified Ziegler-Natta catalyst system, a method for preparing the catalyst system, and a process for polymerizing an olefin in the presence of the catalyst system are disclosed. The catalyst system comprises a titanium or vanadium com...
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WO/2011/040959A1 |
A modified Ziegler-Natta catalyst system, a method for preparing the catalyst system, and a process for polymerizing an olefin in the presence of the catalyst system are disclosed. The catalyst system comprises a titanium compound, an al...
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WO/2011/040558A1 |
Disclosed are: a transition metal complex represented by general formula (1); and a catalyst for olefin polymerization, which contains the transition metal complex as a catalyst component for olefin polymerization. (In the formula, M1 re...
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WO/2011/040881A1 |
This invention relates to the polymerization of vinyl monomers by atom transfer radical polymerization (ATRP) using metal salts in ppm molar quantities. It relates to the polymerization under ATRP conditions using unimolecular ligand-ini...
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WO/2011/040555A1 |
Disclosed is transition metal complex that serves as a catalytic component capable of efficiently preparing 1-hexene with excellent selectivity, even under high temperature conditions, by means of an ethylene trimerization reaction. Also...
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WO/2011/040557A1 |
Disclosed is an ethylenic polymer having a long characteristic relaxation time. The ethylenic polymer satisfies the following requirements: (a) the ethylenic polymer is a non-crosslinked ethylenic polymer; (b) the number of long-chain br...
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WO/2011/040960A1 |
A modified Ziegler-Natta catalyst system, a method for preparing the catalyst system, and a process for polymerizing an olefin in the presence of the catalyst system are disclosed. The catalyst system comprises a titanium or vanadium com...
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WO/2011/035544A1 |
An iso-olefin polymer and its preparation method are disclosed. The method comprises the following steps: (1) forming a polymerization system including the following components: initiator system consisting of initiator, additive, Lewis a...
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WO/2011/035545A1 |
An initiator system for initiating cationic polymerization in aqueous reaction media, and a method for cationic polymerization of monomer initiated by the initiator system in aqueous reaction media are disclosed. The initiator system com...
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WO/2011/037971A1 |
Silica-coated alumina activator-supports, and catalyst compositions containing these activator-supports, are disclosed. Methods also are provided for preparing silica-coated alumina activator-supports, for preparing catalyst compositions...
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WO/2011/031309A1 |
Process for producing an olefin polymer in a slurry polymerisation process is disclosed, in which the process is operating at a temperature of 90°C to 107°C and utilising a chromium catalyst having an activity of at least 1,000 g polym...
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WO/2011/029735A1 |
A process for the gas-phase polymerization of one or more alpha-olefms in the presence of a polymerization catalyst, the process comprising: - at least a polymerization step wherein the polymer particles flow downward in densified form u...
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WO/2011/027793A1 |
Disclosed are: a method for reproducing a phenolic compound from a phenolic antioxidant agent that has been masked with an organoaluminum compound and is contained in an olefin polymer produced while supplying the phenolic antioxidant ag...
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WO/2011/028178A1 |
Various techniques, methods and processes that can be used in the preparation of a Ziegler-Natta (ZN) catalyst are disclosed. In one embodiment, a process for preparing a ZN catalyst includes preparing a magnesium chloride based support ...
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WO/2011/025636A1 |
A final polymer product is formed using a two-stage process and system. In the first stage, a catalyst system is used to polymerize an alpha-olefin monomer to form an effluent. In the second stage, additional alpha-olefin monomer is supp...
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WO/2011/023532A1 |
Ziegler-Natta polymerization catalyst composition for the (co)polymerization of ethylene, said catalyst composition comprising 1) a solid procatalyst formed by contacting at least: a) a Mg-alcoholate compound of the formula (I): Mg(OR1)2...
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WO/2011/022583A1 |
The present invention pertains to crosslinkable and crosslinked polyisobutylene-based polymers, to compositions that contain such polymers, and to medical devices that are formed using such polymers. According to one aspect, the present ...
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WO/2011/021805A2 |
The present invention relates to a novel metallocene compound, to a catalyst composition comprising same, and to an olefin polymer prepared using same. The metallocene compound and the catalyst compound comprising same according to the p...
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WO/2011/022373A1 |
A polymerization process for copolymerizing ethylene and a series of -olefins to form a branched polyethylene, in which the series of -olefins is generated in-situ by an ethylene oligomerization catalyst, is improved if the oligomerizati...
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WO/2011/019541A1 |
The invention relates to a process for forming a polyalphaolefin, the process comprising the step of polymerizing at least one C8-C12 monomer, preferably a decene such as 1-decene, in the presence of an aluminoxane, an activator and a me...
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WO/2011/018237A2 |
The invention relates to a catalyst system comprising I. a solid reaction product obtained by reaction of: (a) a hydrocarbon solution comprising (1) an organic oxygen containing magnesium compound (2) an organic oxygen containing titaniu...
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WO/2011/019474A2 |
Provided are catalyst systems, processes for polymerizing one or more olefins, polymers resulting therefrom, and articles prepared from such polymers. The processes comprise contacting under polymerization conditions one or more olefin m...
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WO/2011/019563A1 |
An ethylene-based polymer characterized as having a density from about 0.9 to about 0.94 grams per cubic centimeter, a molecular weight distribution (Mw/Mn) from about 4 to about 10, a melt index (I2) from about 0.05 to about 2 grams per...
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WO/2011/015552A1 |
A solid catalyst component comprising the product of a process comprising (a) reacting a magnesium alcoholate of formula Mg(OR1)(OR2) compound, in which R1 and R2 are identical or different and are each an alkyl radical having 1 to 10 ca...
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WO/2011/015553A1 |
Process for the preparation of ethylene polymers having narrow MWD characterized by a F/E ratio lower than 35 carried out in the presence of a catalyst system comprising (a) a solid catalyst component comprising Ti atoms that are substan...
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WO/2011/017283A2 |
Disclosed are catalyst systems and methods of using the same for the polymerization of an olefin containing a solid titanium catalyst ant two external electron donors. Use of an aminosilane and an alkylsilane as external electron donors ...
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WO/2011/014665A2 |
Provided herein are methods for preparing a telechelic polymer of formula I wherein R1 is a polyolefin group; R2 and R3 are, independently in each -(CR2 R3)- unit, hydrogen or alkyl from 1 to 6 carbons; m is an integer from 2 to 20; RX i...
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WO/2011/014022A2 |
The present invention relates to a novel metallocene compound, a catalyst composition comprising the same, and to olefinic polymers produced using the same. The metallocene compound according to the present invention and the catalyst com...
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WO/2011/012245A1 |
The present invention relates to non-symmetrical organometallic transition metal compounds of the compound of the formula (I) where R8 and R9 are identical or different and each an substituted or unsubstituted organic radical having from...
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WO/2011/012818A1 |
The invention relates to a part comprising a substrate formed from an electronically conducting material and, over at least a portion of the surface of the substrate, a coating comprising a ceramic coating layer. Characteristically, said...
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WO/2011/011039A1 |
A method of preparing supported catalysts useful for olefin polymerization is described. The catalysts comprise a Group 4 metal complex that incorporates a tridentate dianionic ligand. An activator mixture is first made from a boron comp...
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WO/2011/011040A1 |
Catalysts useful for polymerizing olefins are disclosed. The catalysts comprise an activator and a Group 4 metal complex that incorporates a dianionic, tridentate 2-(2-aryloxy)quinoline or 2-(2-aryloxy)dihydroquinoline ligand. In one asp...
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WO/2011/011041A1 |
Catalysts useful for polymerizing olefins are disclosed. The catalysts comprise an activator and a Group 4 metal complex that incorporates a dianionic, tridentate 2-aryl-8-anilinoquinoline ligand. In one aspect, supported catalysts are p...
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WO/2011/011427A1 |
A process for the polymerization of olefins is disclosed. The process may include: feeding a catalyst, a liquid diluent, and an olefin to a polymerization vessel having, from a polymerization vessel bottom to a polymerization vessel top,...
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WO/2010/144784A9 |
An ethylene-based polymer characterized as having a density from about 0.9 to about 0.94 grams per cubic centimeter, a molecular weight distribution (Mw/Mn) from about 8 to about 30, a melt index (I2) from about 0.1 to about 50 grams per...
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