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US20120277388 POLYETHYLENE PREPARED WITH SUPPORTED LATE TRANSITION METAL CATALYST SYSTEMS  
The present invention relates to the field of ethylene polymerisation with a supported late transition metal catalyst system.
US20140206829 ISOSELECTIVE POLYMERIZATION OF EPOXIDES  
The present invention provides novel bimetallic complexes and methods of using the same in the isoselective polymerization of epoxides. The invention also provides methods of kinetic resolution of...
US20100311931 Catalyst Systems Based on Carbonylamino Fulvenes  
The present invention discloses metallic complexes based on carbonylamino fulvene ligands; their method of preparation and their use in the oligomerisation or polymerisation of ethylene and...
US20130030135 Vinyl-Terminated Macromonomer Oligomerization  
Vinyl-terminated macromonomer oligomerization, namely, a process to produce polymacromonomers comprising contacting a vinyl-terminated macromonomer with a catalyst system capable of oligomerizing...
US20100311930 New Tridentate Ligand Compounds with Imino Furan Units, Method for Manufacturing Said Compounds, and their use in the Preparation of Catalysts for the Homopolymerisation and Copolymerisation of Ethylene and Alpha-Olefins  
The present invention relates to new tridentate ligand compounds with imino furan units, to a method for manufacturing said compounds and to their use in the preparation of catalysts for the...
US20130190467 Low Temperature Cure Using Benzopinacol Polymerization Initiator  
A polymerization initiator for reactive monomers and unsaturated polymers which is the reaction product of a metal-organic titanium compound or a metal-organic zirconium compound and pinacol...
US20120112131 ELECTROPHORETIC DISPERSION  
The present invention is directed to an electrophoretic dispersion comprising pigment particles dispersed in a solvent or solvent mixture, wherein said pigment particles comprises at least one...
US20130331501 ISOLATION OF CARBON NANOTUBES BY CHEMICAL FUNCTIONALIZATION  
Embodiments of the present disclosure illustrate systems and methods for the separation of carbon nanotubes (CNTs) in solution and continuously fabrication of functionalized carbon nanotubes...
US20140319063 PROCESS TO OBTAIN RANDOM COPOLYMERS DERIVED FROM ITACONIC ACID AND/OR ITS ISOMERS AND SODIUM ALKENYL SULFONATES AND USE OF THE PRODUCT THEREOF  
A process for obtaining random copolymers from itaconic acid and/or isomers and sodium alkenyl sulfonates is by polymerization in an aqueous solution via free radicals at an acidic pH in the range...
US20150105525 POLYMERIZATION INITIATING SYSTEM AND METHOD TO PRODUCE HIGHLY REACTIVE OLEFIN FUNCTIONAL POLYMERS  
A method for producing highly reactive olefin polymers wherein at least 50 mol. % of the polymer chains have terminal double bonds, and a novel polymerization initiating system for accomplishing same.
US20140378635 Salenol Catalyst  
Catalysts comprising salenol ligands are disclosed herein. Also, catalyst systems comprising the catalyst and an activator; methods to prepare the ligands, catalysts and catalyst systems;...
US20140378634 Thio-Salalen Catalyst  
Catalysts comprising thio-salalen ligands. Also, catalyst systems comprising the catalyst and an activator; methods to prepare the ligands, catalysts and catalyst systems; processes to polymerize...
US20100022726 Pyridyldiamido Transition Metal Complexes, Production And Use Thereof  
Pyridyldiamido transition metal complexes are disclosed for use in alkene polymerization. The ligands are tridentate with an NNN configuration. The general formula is: (I)
US20110015346 ETHYLENE-BASED POLYMER COMPOSITIONS  
The present invention provides an ethylene-based polymer composition characterized by a Comonomer Distribution Constant in the range of from greater than 45 to less than 400, wherein the...
US20140296456 Catalyst Systems for Production of Alpha Olefin Oligomers and Polymers  
Catalyst compositions containing N,N-bis[2-hydroxidebenzyl]amine transition metal compounds are disclosed. Methods for making these transition metal compounds and for using such compounds in...
US20130172498 CATALYST SYSTEMS FOR PRODUCTION OF ALPHA OLEFIN OLIGOMERS AND POLYMERS  
Catalyst compositions containing N,N-bis[2-hydroxidebenzyl]amine transition metal compounds are disclosed. Methods for making these transition metal compounds and for using such compounds in...
US20130066029 MULTI-METALLIC ORGANOMETALLIC COMPLEXES, AND RELATED POLYMERS, COMPOSITIONS, METHODS AND SYSTEMS  
Multi-metallic organometallic complexes that allow performance of olefin based reaction and in particular polymerization of olefins to produce polyolefin polymers, and related methods and systems...
US20130172500 Passivated Supports for Use with Olefin Polymerization Catalysts  
A phosphinimine catalyst immobilized on a passivated inorganic oxide support, had high activity at low co-catalyst concentrations and gave, under gas phase polymerization conditions, ethylene...
US20130172497 CATALYST COMPOSITIONS FOR THE POLYMERIZATION OF OLEFINS  
Catalyst compositions containing N,N-bis[2-hydroxidebenzyl]amine transition metal compounds are disclosed. Methods for making these transition metal compounds and for using such compounds in...
US20120259081 REACTOR CONTINUITY  
A supported catalyst system comprising a phosphinimine ligand containing catalyst on a porous inorganic support treated with a metal salt has improved reactor continuity in a dispersed phase...
US20110124831 SELF-ASSEMBLED OLEFIN POLYMERIZATION CATALYST  
The present invention relates to a self-assembled olefin polymerization catalyst comprising a transition metal compound according to formula (I) LqMmXn wherein M is a transition metal selected...
US20120148958 SULFUR-CONTAINING MACROMOLECULES AND METHODS FOR THEIR PREPARATION  
A sulfur-containing macromolecule and a method of preparing the sulfur-containing macromolecule comprising a polymerization step are provided, where the sulfur-containing macromolecule contains...
US20050027075 Low molecular weight nitrile rubber  
The present invention relates to nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art. The present invention also relates...
US20140011971 IRON COMPLEXES AND METHODS FOR POLYMERIZATION  
Provided are methods of preparing polymers, such as polyisoprene, polybutadiene, polypiperylene, polycyclohexadiene, poly-β-farnesene, or poly-β-myrcene, using iron complexes. Also provided are...
US20120309915 ETHYLENE POLYMERIZATION PROCESS AND POLYOLEFIN  
A polymerization to form a branched polyolefin, in which polymerization an ethylene copolymerization catalyst and an ethylene oligomerization catalyst form a series of ethylene oligomers that are...
US20140200313 METHOD FOR PREPARING DIALKYL MAGNESIUM COMPOUNDS BY ETHYLENE POLYMERISATION AND USES THEREOF  
A process for the preparation by ethylene polymerization of at least one dialkyl magnesium compound of formula R—(CH2—CH2)n—Mg—(CH2—CH2)m—R′ in which R and R′, identical or different, represent...
US20110263804 PROCESS FOR THE PREPARATION OF A CATALYST COMPOSITION FOR DIMERIZATION, CODIMERIZATION AND OLIGOMERIZATION OF OLEFINS  
This invention describes a process for the preparation of a catalytic composition that can be used for oligomerization, codimerization, or polymerization of olefins. This invention also describes...
US20090149614 CABLE LAYER ON POLYPROPYLENE BASIS WITH HIGH ELECTRICAL BREAKDOWN STRENGTH  
Certain embodiments of the present technology provide a cable layer comprising a polypropylene material, where the cable layer and/or the polypropylene material comprise a crystalline fraction...
US20110098425 Catalyst Compounds and Use Thereof  
This invention relates to Group 4 catalyst compounds containing di-anionic tridentate nitrogen/oxygen based ligands. The catalyst compounds are useful, with or without activators, to polymerize...
US20100292425 METHOD AND SYSTEM FOR FORMING A PRECURSOR COMPOUND FOR NON-BRIDGED UNSYMMETRIC POLYOLEFIN POLYMERIZATION CATALYST  
The present techniques relates generally to polyolefin catalysts and, more specifically, to preparing a precursor compound for an unsymmetric metallocene catalyst, for using the precursor compound...
US20100311932 LIGANDS AND CATALYST SYSTEMS THEREOF FOR THE CATALYTIC OLIGOMERIZATION OF OLEFINIC MONOMERS  
The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand having the general formula (VI); (R9)(R10)P—N(R3)—P(R4) (VI) wherein:...
US20140039126 Lanthanide Complex Catalyst And Polymerization Method Employing Same  
A novel class of lanthanide metal salen complexes can be used as an ingredient of a catalyst system. The catalyst system can be used in polymerizations of ethylenically unsaturated hydrocarbon...
US20120271014 OLEFIN POLYMERIZATION PROCESS  
A polymerization process for copolymerizing ethylene and a series of α-olefins to form a branched polyethylene, in which the series of α-olefins is generated in-situ by an ethylene oligomerization...
US20070010639 Polyolefin functional at each end  
A telechelic polyolefin represented by the following general formula (I): X—P—Y (1) wherein X and Y are each a group containing at least one element selected from oxygen, sulfur, nitrogen,...
US20110319579 Catalyst Systems for the Catalytic Oligomerization of Olefinic Monomers  
The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand having the general formula (VI); (R9)(R10)P—N(R3)—P(R4) (VI) wherein:...
US20140100326 SPONGE POLYMER WITH CONTROLLED LONG CHAIN BRANCHING AND BROAD MOLECULAR WEIGHT DISTRIBUTION  
A process and the resultant product from the process for continuously making an EPDM utilizing ethylene, propylene, and dienes. This process allows for the creation of products with high diene...
US20100184931 METHOD FOR PRODUCING VERY-HIGH OR ULTRA-HIGH MOLECULAR WEIGHT POLYETHYLENE  
The field of the invention relates generally to a method for preparing very-high or ultra-high molecular weight polyethylene. More particularly, the present invention related to a method of...
US20130071663 ULTRA-HIGH MOLECULAR WEIGHT POLYETHYLENE, ITS PRODUCTION AND USE  
Ultra-high molecular weight polyethylene has a molecular weight greater than 20×106 gm/mol as determined by ASTM 4020 or by size exclusion chromatography (SEC) and is produced by polymerizing...
US20120059135 COPOLYMER OF OLEFIN AND CONJUGATED DIENE, AND PROCESS FOR PRODUCING THE SAME  
An object of the invention is to provide copolymers which have a double bond in a side chain and are substantially free of unsaturated bonds in the main chain, copolymers which have a cyclic...
US20090281260 SINGLE-CHAIN-END FUNCTIONALIZED POLYOLEFIN  
A single-chain-end functionalized polyolefin and method of producing the same. The polyolefin is represented by the following general formula (I): P—X (I) wherein X is a group containing at least...
US20130123444 ETHYLENE POLYMERIZATION USING DISCRETE NICKEL(II) IMINOPHOSPHONAMIDE COMPLEXES  
The present invention generally relates to a new method of polymerizing ethylene. In one embodiment, the present invention relates to compounds utilized in the polymerization of ethylene and to a...
US20130261267 CONTROLLED RADICAL POLYMERIZATION OF HALOGENATED MONOMERS  
Process for the preparation of a halogenated polymer comprising a controlled radical polymerization step of at least one monomer containing at least one halogen-carbon bond, performed in the...
US20080249266 Polymerisation Catalyst System Based on Monooxime Ligands  
The present invention discloses active oligomerisation and polymerisation catalyst systems based on dioxime ligands.
US20140303327 Process For Producing Polydienes  
A method for producing a polydiene, the method comprising the steps of: (i) forming an active catalyst by combining a lanthanide-containing compound, an alkylating agent, and a halogen source in...
US20120309916 OLEFIN POLYMERIZATION PROCESS  
An ethylene oligomerization catalyst that oligmerizes ethylene to a series of α-olefins and that has a Schulz-Flory constant of about 0.75 to 0.995 produces a stream of α-olefins. This stream is...
US20130090400 PROCESS FOR PRODUCING HIGH MOLECULAR WEIGHT POLYETHYLENE  
In a process for producing polyethylene having a molecular weight of at least 1×106 g/mol as determined by ASTM 4020, ethylene is contacted under polymerization conditions with a slurry of a...
US20130131295 Catalyst Compounds and Use Thereof  
This invention relates to Group 4 catalyst compounds containing anionic bidentate nitrogen/oxygen based ligands catalyst compounds useful for polymerization and or oligomerization of unsaturated...
US20100267910 CATALYST SYSTEM FOR OLEFIN POLYMERIZATION COMPRISING PHENANTHROLINE-COMPRISING IRON COMPLEXES  
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)...
US20110054130 CATALYST COMPOSITION AND PROCESS FOR PREPARING LINEAR ALPHA-OLEFINS  
The present invention relates to a catalyst composition for the oligomerization of ethylene, comprising a transition metal compound of the general formula MXm, (OR′)4-m or MXm(OOCR′)4-m, wherein...
US20090156768 Transition Metal Compound, Ligand System, Catalyst System and Process for Preparing Polyolefins  
The present invention relates to transition metal compounds of the formula (I); where M is an element of group 3, 4, 5, 6, 7, 8, 9 or 10 of the Periodic Table of the Elements or the lanthanide's,...

Matches 1 - 50 out of 162 1 2 3 4 >