Synthetic resins or natural rubbers -- part of the class 520 series inventions 12/07

20070299220 - Process for polymerising olefins in the presence of an olefin polymerisation catalyst: Olefins are polymerised in the presence of a solid catalyst component and optionally a cocatalyst. The solid catalyst component is introduced into the polymerisation reactor by suspending the solid component into oil having a viscosity of from 20 to 1500 mPa s. Optionally, the suspension comprises a drag reduction agent... Agent: Fay Sharpe LLP

20070299221 - Polymerisation using chain transfer agents: The invention provides a process for synthesising functionalised chain transfer polymers of Formula (1) or Formula (2) using thiocarbonyl thio compounds as chain transfer agents. Why R1 is a moiety comprising a functional group; Q is obtained from an olefinically unsaturated monomer; R′ is selected from the group consisting of... Agent: Wiggin And Dana LLP Attention: Patent Docketing

20070299222 - Transition metal catalysts and formation thereof: Supported catalysts systems and method of forming the same are described herein. The method generally includes providing a support material, providing a single site transition metal catalyst compound, contacting the transition metal catalyst compound with triisobutyl aluminum (TiBAl) to form a modified catalyst compound and contacting the support material with... Agent: Fina Technology Inc

20070299223 - Process for the preparation of 1-butene/propylene copolymers: A solution polymerization process for obtaining isotactic, crystalline or crystallisable 1-butene/propylene polymers comprising contacting under polymerization conditions at a temperature ranging from 50° C. to 90° C. 1-butene and propylene in the presence of a catalyst system obtainable by contacting: a) at least one metallocene compound; b) an alumoxane or... Agent: Basell Usa Inc.

20070299224 - Formation of ziegler-natta catalyst: Methods of forming polyolefins and catalysts are described herein. Such methods generally include forming Ziegler-Natta catalyst compounds in the absence of one or more blended compounds typically used to form such catalyst.... Agent: Fina Technology Inc

20070299225 - Method for producing isobutylene polymer: Disclosed is a method for stably and efficiently removing a catalyst from an isobutylene polymer by improving the separatability of an organic phase and an aqueous phase during the operation wherein a catalyst is washed out from a reaction solution containing an isobutylene polymer by means of water. Specifically disclosed... Agent: Brinks Hofer Gilson & Lione

20070299226 - Method for preparing adhesive acrylic ester polymer syrup: The present invention relates to a method for preparing an acrylic ester polymer syrup by bulk polymerization, and more particularly, to a method for preparing an acrylic ester polymer syrup, which comprises the steps of: supplying a monomer solution and an initiator solution to a monomer solution reservoir and an... Agent: Mckenna Long & Aldridge LLP

20070299227 - Biodegradable block copolymers with modifiable surface: The invention relates to a block copolymer containing: a) hydrophobic biodegradable polymer; b) a hydrophilic polymer and c) at least one reactive group for covalent binding of a surface-modifying substance d) to the hydrophilic polymer b). The invention relates to shaped bodies consisting of the block copolymer and to their... Agent: Stout, Uxa, Buyan & Mullins LLP

20070299228 - Surfactant: A compound of the formula R1. [(AO)n.—R2]m (I) where: R1 is the residue of a group having at least m active hydrogen atoms; AO is an alkylene oxide residue; each n is independently from 1 to 100; m is at least 2; and each R2 is independently H, a C1... Agent: Jones Day

20070299229 - Process for production of high-isoprene butyl rubber: The present invention relates to a continuous process for producing polymers at conversions ranging from 50% to 95% having a Mooney viscosity of at least 25 Mooney-units and a gel content of less than 15 wt. % containing repeating units derived from at least one isoolefm monomer, more than 4.1... Agent: Lanxess Corporation

20070299230 - Rubber composition for base tread: e

20070293638 - Polymerization process: This invention is directed to processes of making polymer in the presence of a hydrofluorocarbon or perfluorocarbon and recovering the polymer. The processes provided enable polymerization processes to be practiced with minimal fouling in the reaction system, and provide polymer products that can be manufactured to relatively low densities. The... Agent: Exxonmobil Chemical Company

20070293639 - Olefin polymerization process: A process for polymerizing ethylene is disclosed. The process comprises polymerizing ethylene in the presence of a catalyst system which comprises a bridged indenoindolyl transition metal complex on a support material, an alkylalumoxane, a titanium tetralkoxide, and a branched alkyl aluminum compound. The process provides polyethylenes with low density from... Agent: Lyondell Chemical Company

20070293640 - Multiple catalyst system for olefin polymerization and polymers produced therefrom: This invention relates to a polymer comprising one or more C3 to C40 olefins, optionally one or more diolefins, and less than 15 mole % of ethylene, where the polymer has: a) a Dot T-Peel of 1 Newton or more; and b) a branching index (g′) of 0.95 or less... Agent: Exxonmobil Chemical Company Law Technology

20070293641 - Propylene based terpolymers: i

20070293642 - One-part self-etching, self-priming dental adhesive composition: One-part self-etching, self-priming dental adhesive composition having a pH of at most 2, which comprises (a) a polymerizable acidic phosphoric acid ester monomer (b) one or more polymerizable acidic monomers (c) a polymerizable N-substituted alkylacrylic or acrylic acid amide monomer; (d) optionally an organic and/or inorganic acid; (e) an organic... Agent: Mcnees Wallace & Nurick, LLC

20070293643 - Hexafluoropropene-based fluorosulfonated elastomers with a low glass transition temperature, containing neither tetrafluoroethylene nor a siloxane group: The present invention describes the synthesis of new fluorinated elastomers with very low glass transition temperatures (Tg), a good resistance to bases, gasoline and other carburants and good workability properties, these elastomers contain hexafluoropropene (HFP), perfluoro(4-methyl-3,6-dioxaoct-7-ene) sulfonyl fluoride (PFSO2F), vinylidene fluoride (VDF) and/or at least one fluorinated alkene and/or one... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20070293644 - Fluorocopolymer, process for producing fluorocopolymer, fluorocopolymer curable composition, and cured object: The present invention has for its object to provide a fluorocopolymer which is available at low cost, has fluidity at room temperature, and is curable, a method of producing the same copolymer and a curable composition having good processability and in situ moldability. The present invention is directed to a... Agent: Sughrue Mion, PLLC

20070293645 - Less shear-thinning polyvinyl acetals: Low shear-thinning polyvinyl acetals having a solution viscosity in 30 % strength by weight solution in methyl ethyl ketone which changes by not more than 10% in a shear rate range from 1 to 100 s−1. The preparation of the low shear-thinning polyvinyl acetals involves acetalation of partly hydrolyzed or... Agent: Brooks Kushman P.C.

20070293646 - Plasticised polyvinyl chloride: Esters of cyclohexane polycarboxylic acids are used as plasticisers for polyvinyl chloride to enable products with comparable mechanical properties to be obtained using less polyvinyl chloride. Use of these esters also produces formulations with increased stability to ultra-violet light, improved low temperature properties, lower viscosity and improved processability as well... Agent: Exxonmobil Chemical Company

20070293647 - Oxidation-resistant and wear-resistant polyethylenes for human joint replacements and methods for making them: The present invention presents methods for making oxidation-resistant and wear-resistant polyethylenes and medical implants made therefrom. Preferably, the implants are components of prosthetic joints, e.g., a bearing component of an artificial hip or knee joint. The resulting oxidation-resistant and wear-resistant polyethylenes and implants are also disclosed.... Agent: Wean Khing Wong Attorney At Law

20070287812 - Contact methods for formation of lewis gas/liquid systems and recovery of lewis gas therefrom: The invention relates to an improvement in apparatus and process for the formation of a complex of Lewis acidic or Lewis basic gases in a reactive liquid of opposite character and for the breaking (fragmentation) of said complex associated with the recovery of the Lewis gas therefrom. The improvement resides... Agent: Air Products And Chemicals, Inc. Patent Department

20070287813 - High crystallinity, high melt flow rate polypropylene: High melt flow rate high crystallinity polypropylene homopolymer are produced in a bulk polymerization process using a Ziegler-Natta catalyst containing a combination of two internal electron donors and selected external donors. The high melt flow rate, high crystallinity polypropylene homopolymers produced according to the current invention display improved flexural modulus... Agent: Drinker Biddle & Reath Attn: Intellectual Property Group

20070287814 - Polymerization catalysts for producing polymers with low levels of long chain branching: This invention relates to catalyst compositions, methods, and polymers encompassing a Group 4 metallocene with bridging η5-cyclopentadienyl-type ligands, in combination with a cocatalyst and an activator-support. The compositions and methods disclosed herein provide ethylene polymers with low levels of long chain branching.... Agent: Merchant & Gould Chevron Phillips

20070287815 - Novel high molecular weight associative amphoteric polymers and uses thereof: High molecular weight associative amphoteric polymers for increasing the viscosity of aqueous solutions, comprise: at lease one cationic monomer derived from acrylamide bearing at least one hydrophobic chain of 8 to 30 carbon atoms; 1 to 99.9 mole % of at least one anionic monomer; and 1 to 99 mole... Agent: Heslin Rothenberg Farley & Mesiti PC

20070287816 - Method of preparing derivatives of polyarylene vinylene and method of preparing an electronic device including same: A technique is described for the preparation of polymers according to a process in which the starting compound of formula (I) is polymerized in the presence of a base in an organic solvent. No end chain controlling agents are required during the polymerisation to obtain soluble precursor polymers. The precursor... Agent: Knobbe Martens Olson & Bear LLP

20070287817 - Mixture composition containing unsaturated carboxylic acid and alkene ether derivative based copolymers and copolymers and terpolymers containing sulfo groups and use thereof: The invention relates to a mixture composition having dispersing properties, containing copolymers based on unsaturated mono or dicarboxylic acid derivatives and oxyalkylene ethers as component I and water-soluble copolymers and terpolymers containing sulfo groups having an average molecular weight of 50 000-20 000 000 g/mol as component II. By combining... Agent: Fulbright & Jaworski, LLP

20070287818 - Propylene random copolymer and process for the production thereof: The present invention relates to a process for preparing a propylene random copolymer comprising polymerisation of propylene with a comonomer, said comonomer being ethylene or an α-olefin comprising at least four carbon atoms, in the presence of a catalyst in a multistage process comprising polymerisation of propylene with a comonomer... Agent: Fay Sharpe LLP

20070287819 - Method for measuring concentration of propylene polymer slurry, and process for producing propylene polymer: A method for measuring a concentration of a propylene polymer slurry contained in a polymerization reactor, in which liquid phase-filled polymerization of propylene or a combination of propylene with a comonomer is carried out, according to the defined formula, slurry concentration=0.1(Q0−QI)/(QpPI); and a process for producing a propylene polymer comprising... Agent: Foley And Lardner LLP Suite 500

20070282082 - Method and apparatus for controlling the recovery of solid polyolefin from a continuous reaction zone: A Polymerisation process and a loop reactor comprising polymerising olefins in a liquid diluent to produce a liquid slurry containing particles of normally solid polymer within the loop reactor, allowing the polymer to settle in a settling leg, periodically opening a 180° rotating product take-off valve located at the end... Agent: Fina Technology Inc

20070282083 - Process for the (co) polymerization of ethylene: A process for preparing a broad molecular weight polyethylene carried out in the presence of a catalyst system comprising (i) a solid catalyst component comprising Mg, Ti, halogen, and optionally an internal electron donor compound, and (ii) an Al-alkyl cocatalyst said process comprising at least two step of polymerization (a)... Agent: Basell Usa Inc.

20070282084 - Polymerisation control process: The present invention relates to a process for controlling the gas-phase co-polymerisation of olefins in, a fluidised bed reactor. The present invention further relates to a method for the continuous gas-phase (co-)polymerisation of olefins in a fluidised bed reactor in the presence of a polymerisation catalyst wherein the density SPAN... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20070282085 - Supported antistatic polymerization catalyst: The use of high activity “Single Site” polymerization catalysts often causes the fouling of polymerization reactors. The problem is particularly acute with gas phase polymerizations. While not wishing to be bound by theory it is believed that the fouling is initiated by the buildup of static charges in the reactor.... Agent: Kenneth H. Johnson Patent Attorney

20070282086 - Biodegradable polymers: A phosphorus-containing polymer is provided comprising the reaction product of a chain-transfer agent having at least one pH bond with an unsaturated carboxylic, phosphonic or sulphonic acid. The invention also provides the aforementioned phosphorus-containing polymer further comprising phosphorus-containing end-caps. The polymers have a biodegradability of at least 20% per 28... Agent: Frishauf, Holtz, Goodman & Chick, PC

20070282087 - Polymerizable compound and composition containing the polymerizable compound: (In the formula, each of rings A1 to A3 represents a benzene ring, cyclohexane ring, etc.; each of X to Z represents a C1-8 alkyl or alkoxy group, C2-6 alkenyl group, halogen atom, cyano group, or CH2═CR3—COO—; each of R1 to R3 represents a hydrogen atom, methyl group, or halogen... Agent: Young & Thompson