Synthetic resins or natural rubbers -- part of the class 520 series inventions 03/09

20090082529 - Polyester, process for producing polyester, and polyester molded article: Disclosed is a polyester produced from an aluminum compound and a phosphorus compound in the presence of a polycondensation catalyst. The polyester contains a polyester-insoluble, aluminum-containing insoluble particle in an amount of 1000 ppm or less as quantified by the method disclosed in the description, and contains an acid terminal... Agent: Kenyon & Kenyon LLP

20090082530 - Catalytic process for producing ethylene and carbon monoxide mixtures from ethane: A method for producing a mixture of ethylene and carbon monoxide by contacting ethane and an oxygen source with a catalyst comprising iron oxide supported on an inorganic material to produce ethylene and carbon monoxide. A method for producing an alkyl propionate by steps of: (a) contacting ethane and an... Agent: Rohm And Haas Company Patent Department

20090082531 - Novel copolymers: m

20090082532 - Modified alpha-olefin polymer and process for production of cross-linked product thereof: The present invention provides a modified α-olefin polymer obtained by reacting (i) an α-olefin polymer obtained by homopolymerization or copolymerization of one kind or two kinds or more of an α-olefin having 3 or more carbon atoms and having (1) a mesopentad fraction of 40 to 75 mol % or... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090082533 - Process for preparing low molecular weight olefin polymers, organometallic transition metal compounds biscyclopentadienyl ligand systems and catalyst systems: The present invention relates to a process for preparing olefin polymers having a molar mass Mw of from 500 to 50 000 g/mol by polymerization or copolymerization of at least one olefin of the formula Ra—CH═CH—Rb, where Ra and Rb are identical or different and are each a hydrogen atom... Agent: Basell Usa Inc.

20090082534 - Diene elastomer with cyclic vinyl units and processes for obtaining same: e

20090082535 - (meth)acrylic acid copolymer, method for procucing the same, and application thereof:

20090082536 - Cyclic olefin-based copolymer, film, and polarizing plate and liquid crystal display device including the same: A copolymer contains 10 to 69 mol % of a structural unit derived from propylene, 1 to 50 mol % of a structural unit derived from at least one α-olefin having a carbon number of from 4 to 20 and 30 to 89 mol % of a structural unit derived... Agent: Buchanan, Ingersoll & Rooney PC

20090076230 - Process for preparing compositionally uniform copolymers: This invention relates to semi-batch type copolymerization processes. More specifically, the processes of the present invention are directed to the production of compositionally uniform copolymers, including the production of such copolymers from dissimilar monomers, e.g., from monomers with significantly different reactivity ratios.... Agent: James J. Mullen

20090076231 - Production of polymers in a conical reactor: The present invention provides a process for the preparation of polymer which comprises the steps of i) feeding an aqueous mixture comprising a monoethylenically unsaturated monomer or a mixture of monoethylenically unsaturated monomers and an initiator into the top of a reactor ii) polymerizing the monoethylenically unsaturated monomer to form... Agent: Joann Villamizar Ciba Corporation/patent Department

20090076232 - Process for operating a continuous removal of a target product x in the form of fine crystals of the target product x: A process for operating a continuous removal of a target product X in the form of fine crystals of a liquid phase P comprising the target product X and constituents other than the target product X by cooling suspension crystallization in the secondary chamber of an indirect heat exchanger to... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090076233 - Hybrid polymer and method for production thereof: p

20090076234 - Process of free-radical polymerization or crosslinking in the presence of a selected organic peroxide prepared by an ex situ process: The invention relates to free-radical polymerization and free-radical cross-linking and more particularly provides a process of free-radical polymerization or cross-linking wherein at least one polymerizable monomer or at least one compound to be cross-linked is contacted in the presence of at least one selected organic peroxides, characterized in that the... Agent: Arkema Inc. Patent Department - 26th Floor

20090076235 - Copolymerizable methine and anthraquinone compounds and articles containing them: This invention relates to polymerizable ultraviolet light absorbers and yellow colorants and their use in ophthalmic lenses. In particular, this invention relates to polymerizable ultraviolet light absorbing methine compounds and yellow compounds of the methine and anthraquinone classes that block ultraviolet light and/or violet-blue light transmission through ophthalmic lenses.... Agent: Advanced Medical Optics, Inc.

20090076236 - High-density polyethylene compositions and method of making the same: The instant invention is a high-density polyethylene composition, and method of making the same. The high-density polyethylene composition of the instant invention includes an ethylene alpha-olefin copolymer having a density in the range of 0.935 to 0.952 g/cm3, a melt index (I2) in the range of 30 to 75 g/10... Agent: The Dow Chemical Company

20090069514 - Production method of optical transmission medium: A polymerization initiator, a first polymerizable compound, and a second polymerizable compound are poured into a hollow of a first member (12). The first and second polymerizable compounds are copolymerized to produce a second member (16). The second member (16) is produced by forming a first layer (21) on an... Agent: Sughrue Mion, PLLC

20090069515 - Solid titanium catalyst component, catalyst for polymerization of olefin and process for producing olefin polymer: a plurality of R's are each independently a hydrogen atom or a substituent, but at least one of R's is not a hydrogen atom. When using this solid titanium catalyst component (I), an olefin polymer having a broad molecular weight distribution can be produced.... Agent: Buchanan, Ingersoll & Rooney PC

20090069516 - Catalyst systems and their use for metathesis reactions: Novel catalyst systems for metathesis reactions, in particular for the metathesis of nitrile rubber, which contain a specific salt additive in addition to the metathesis catalyst are provided.... Agent: Lanxess Corporation

20090069517 - Ligands and catalyst systems for the oligomerization of olefinic monomers: the R2 groups are independently selected from hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl and substituted heterohydrocarbyl groups with the proviso that when the group is aromatic it does not contain a polar substituent at any of the ortho-positions; with the proviso that m is 0 or 1, n is 1 or 2... Agent: Donald F. Haas C/o Shell Oil Company

20090069518 - Process for the polymerization of 1-butene: A process for polymerizing 1-butene comprising the step of contacting under polymerization conditions 1-butene and optionally from 0 to 20% by mol of an alpha olefin with a catalyst system obtainable by contacting a bridget metallocene compound of formula (I) wherein R1 and R2 are an hydrocarbon radical A is... Agent: Basell Usa Inc.

20090069519 - Cobalt-catalyzed asymmetric cyclopropanation of electron-deficient olefins: Cobalt-catalyzed asymmetric cyclopropanation of electron-deficient olefins.... Agent: Bryan Cave LLP

20090069520 - Catalysts for radical polymerization: Provided is a method for polymerizing a polymer precursor, comprising: contacting a polymer precursor with a lithium carborane catalyst and an initiator under polymerizing conditions. A reaction solvent may be used, but is not necessary. Also provided is a method of preparing lithium carborane polymers, comprising: contacting a lithium carborane... Agent: Greenlee Winner And Sullivan P C

20090069521 - Novel compound, polymer, and radiation-sensitive composition: wherein R4 represents a methyl group, a trifluoromethyl group, or a hydrogen atom, at least one of the Rfs represents a fluorine atom or a linear or branched perfluoroalkyl group having 1 to 10 carbon atoms, A represents a divalent organic group or a single bond, G represents a divalent... Agent: Merchant & Gould PC

20090069522 - Hydrophobically modified polymers: This invention pertains to composition comprising one or more hydrophobically modified polyacrylamides, wherein the polyacrylamides contain acrylamide, one or more anionic monomers, and excludes a cationic monomer, and a method of using the composition for consumer and/or industrial applications.... Agent: Peter A. Dimattia Patent And Licensing Department

20090069523 - Propylene random block copolymer, resin composition containing the copolymer and molded article made thereof: The invention provides a propylene random block copolymer (A) that has a melt flow rate from 0.1 to 100 g/10 min and a melting point from 100 to 155° C. and includes 90 to 60% by weight of a portion insoluble (Dinsol) in n-decane at room temperature and 10 to... Agent: Foley And Lardner LLP Suite 500

20090062484 - Method for reducing depositions in polymerization vessels: The method of polymerization includes the steps of a) providing a catalyst system, b) providing at least one monomer or comonomer mixture in a reaction vessel, c) introducing the catalyst into the reaction vessel, and d) polymerizing the at least one monomer or comonomer mixture to produce an isoolefin polymer.... Agent: Exxonmobil Chemical Company

20090062485 - Polymerisation process: A process for the polymerisation of olefins is disclosed wherein at least part of a stream, preferably a catalytically active stream, withdrawn from a polymerisation reactor is passed through a fractionator so as to remove hydrogen and active fines.... Agent: Nixon & Vanderhye, PC

20090062486 - Method of changing between incompatible polymerization catalysts in a gas-phase fluidized-bed reactor: Method of changing from a polymerization using a first catalyst to a polymerization using a second catalyst which is incompatible with the first catalyst in a gas-phase reactor, which comprises the steps a) stopping of the polymerization reaction using the first catalyst, b) flushing of the reactor under polymerization conditions... Agent: Lyondellbasell Industries

20090062487 - Olefin polymerization process: A slurry process for polymerizing ethylene is disclosed. The process comprises polymerizing ethylene in the presence of an α-olefin and a catalyst comprising an activator and a supported bridged indeno[1,2-b]indolyl zirconium complex. The process produces polyethylene characterized by good incorporation of the α-olefin and low long-chain branching. The process is... Agent: Lyondellbasell Industries

20090062488 - Olefin polymerization process: A slurry process for polymerizing ethylene is disclosed. The process comprises polymerizing ethylene in the presence of an α-olefin and a catalyst comprising an activator and a supported bridged indeno[1,2-b]indolyl zirconium complex. The process produces polyethylene characterized by good incorporation of the α-olefin and moderate long-chain branching. The process is... Agent: Lyondellbasell Industries

20090062489 - Olefin polymerization process: A slurry process for polymerizing ethylene is disclosed. The process comprises polymerizing ethylene in the presence of an α-olefin and a catalyst comprising an activator and a supported bridged bis-indeno[2,1-b]indolyl zirconium complex. The process uses a highly active catalyst and provides polyethylene characterized by a high level of long-chain branching.... Agent: Lyondellbasell Industries

20090062490 - Olefin polymerization process: A slurry process for polymerizing ethylene is disclosed. The process comprises polymerizing ethylene in the presence of an α-olefin, hydrogen, and a catalyst comprising an activator and a supported, dimethylsilyl-bridged bis(indenoindolyl)zirconium complex. The process has high catalyst activity and produces polyethylene having a broad molecular weight distribution.... Agent: Lyondellbasell Industries

20090062491 - Metallocene compounds: A bridged metallocene compound of formula (I) wherein: M is an atom of a transition metal; X, is a hydrogen atom, a halogen atom, or a hydrocarbon-based group; R1 is a C1-C40 hydrocarbon radical; R2 and R3, form together a condensed 3-7 membered ring; R4 is a hydrogen atom or... Agent: Basell Usa Inc.

20090062492 - Aluminoxane catalyst activators derived from dialkylaluminum cation precursor agents, processes for making same, and use thereof in catalysts and polymerization of olefins: Compositions useful for activating catalysts for olefin polymerization, and methods for making same, are provided. Such compositions can be derived from at least: an organoaluminum compound, a carrier, an oxygen source, and, optionally, a Lewis base.... Agent: Albemarle Corporation Patent Department

20090062493 - Ligands and catalyst systems thereof for the catalytic oligomerization of olefinic monomers: the R4 group is an optionally substituted alkylenedioxy, alkylenedimercapto or alkylenediamino structure which is bound to the phosphorus atom through the two oxygen, sulphur or nitrogen atoms of the alkylenedioxy, alkylenedimercapto or alkylenediamino structure or an optionally substituted arylenedioxy, arylenedimercapto or arylenediamino structure which is bound to the phosphorus atom... Agent: Shell Oil Company

20090062494 - Process for the preparation of polypropylene: The present invention relates to a process for the preparation of polypropylene using a catalyst system of low porosity, the catalyst system comprising an asymmetric catalyst, wherein the catalyst system has a porosity of less than 1.40 ml/g.... Agent: Fay Sharpe LLP

20090062495 - High temperature process for solution polymerization: A process for the solution polymerization of olefins with improved on-stream time is provided. The solution polymerization process of the current invention comprises a method for the on-line removal of foulant material from one or more heat exchangers downstream of a polymerization reactor. Removal of foulant material is accomplished by... Agent: Kenneth H. Johnson Patent Attorney

20090062496 - Method for reducing depositions in polymerization vessels: Provided is a method for reducing depositions in polymerization vessels, where the method includes the steps of providing a reaction vessel having polymerization contact surfaces, polishing a majority of the polymerization contact surfaces to have an average percent excess surface areas (SAxs) of 2% or less, introducing a catalyst system... Agent: Exxonmobil Chemical Company