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Synthetic resins or natural rubbers -- part of the class 520 series January recently filed with US Patent Office 01/09

20090030164 - 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

20090030165 - Process for manufacturing reduced water content (meth) acrylic acid: A method is provided herein for purifying (meth)acrylic acid to provide a purified (meth)acrylic acid product having a low aldehyde concentration and not more than 0.2 wt % water. One embodiment of the method includes distilling (meth)acrylic acid in the presence of an aldehyde treating compound. Another embodiment of the... Agent: Rohm And Haas Company Patent Department

20090030166 - Preparation of supported catalyst systems containing reduced amounts of aluminoxanes: The present invention relates to a process for preparing a catalyst solid for olefin polymerization, comprising a finely divided support, an aluminoxane and a metallocene compound, which comprises: a) firstly combining the finely divided support with the aluminoxane and subsequently b) adding the reaction product of a metallocene compound with... Agent: Basell Usa Inc.

20090030167 - Polymerization catalyst composition for polymerization of isoprene compound: wherein R1 and R2 independently represent an alkyl group, a cyclohexyl group, an aryl group or an aralkyl group; R3 represents an alkyl group, an alkenyl group, an alkynyl group, an aryl group, an aralkyl group, an aliphatic, aromatic or cyclic amino group, a phosphino group, a boryl group, an... Agent: Birch Stewart Kolasch & Birch

20090030168 - Process for producing cationically stabilized and water-redispersible polymer powder compositions: Redispersible polymer powders which are cationically stabilized by spray drying a polymer dispersion with a cationic polymer can be used in higher concentrations in chemical building construction materials without introducing adverse properties.... Agent: Brooks Kushman P.c.

20090030169 - Process for production of high-isoprene butyl rubber: d

20090023872 - Polypropylene series reactor: Aspects of the invention are directed to a process for producing polypropylene comprising: providing series reactors comprising a first and a second loop allowing flow of polypropylene, catalyst, hydrogen and propylene there between, wherein each loop comprises from six to eight legs, each leg having fluid connections there between; injecting... Agent: Exxonmobil Chemical Company

20090023873 - Process for the polymerization of olefins: A multistep process comprising the following steps: step a) polymerizing propylene and optionally one or more monomers selected from ethylene or alpha olefins of formula CH2═CHT1, wherein T1 is a C2-C10 alkyl radical in the presence of a catalyst system supported on an inert carrier, comprising: ii) one or more... Agent: Basell Usa Inc.

20090023874 - Process for producing ring-opening metathesis polymer: According to the present invention, a ring-opening metathesis polymer can be produced at a higher reaction rate without degrading the high activity inherently possessed by a ruthenium carbene complex (catalyst). Because of being free of a decrease in the concentration of the catalyst maintaining the high activity during reaction, the... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.c.

20090023875 - Process for controlling morphology of ziegler-natta catalysts: Disclosed is a process for making a Ziegler-Natta catalyst having controlled particle size and distribution. It comprises altering the precipitation of a catalyst component from a catalyst synthesis solution including a soluble magnesium containing catalyst precursor by controlling the concentration of either the soluble magnesium containing catalyst precursor, wherein the... Agent: Fina Technology Inc

20090023876 - Crosslink agents and dual radical cure polymer: Crosslink agents used to copolymerize at least one hydrophilic monomer with at least one lens monomer typically used to prepare polymeric materials for ophthalmic lenses. The crosslink agents have a relatively high selectivity for the hydrophilic monomer and limited reactivity with the crosslink agent used to polymerize the lens monomer.... Agent: Bausch & Lomb Incorporated

20090023877 - Norbornene monomers with fluorene group and polymer material thereof: Norbornene monomers with fluorene group and polymer material thereof are disclosed. The norbornene monomers with fluorene group are prepared by Diels-Alder reation. The Norbomene monomers containing fluorene groups are highly active for ring-opening-metathesis polymerization (ROMP), and the molecular weight and PDI value of the obtained polymers are controllable.... Agent: Joe Mckinney Muncy

20090023878 - (meth)acrylate derivative, polymer and photoresist composition having lactone structure, and method for forming pattern by using it: r

20090023879 - High refractive index monomers and (co)polymers prepared therefrom: The present invention relates to high refractive index monomers according to formula (I) and (co)polymers comprising such high refractive index monomers. The 5 (co)polymers are highly suitable for the manufacture of optical articles, in particular flexible optical articles, more in particular intraocular lenses.... Agent: Foley And Lardner LLP Suite 500

20090023880 - Polyvinyl alcohol having 1,2-glycol bond in side chain and process for preparing the same: There is disclosed a polyvinyl alcohol having a 1,2-glycol bond in a side chain, which has the features that there is no generation of dimethyl carbonate in the preparation thereof, no need of an eliminating process of dimethyl carbonate in the recovering process of waste liquid after hydrolysis. Also, even... Agent: Antonelli, Terry, Stout & Kraus, LLP

20090023881 - Catalyst for synthesizing a polypropylene with a wide molecular weight distribution and use of the same: The present invention relates to a catalyst for synthesizing a polypropylene with a wide molecular weight distribution and use of the same. The catalyst comprises magnesium halide, titanium-containing compound, and an organic phosphate type electron donor compound. By the catalyst according to the present invention, a propylene polymer with a... Agent: Wells St. John P.s.

20090023882 - Process for preparation of polyisobutylene whose content of terminal double bonds is more than 50% from an industrial c4 hydrocarbon stream comprising 1-butene, 2-butene and isobutene: Preparation of polyisobutylene having a content of terminal double bonds of more than 50% by polymerizing isobutene using a polymerization catalyst customary therefor from a technical 1-butene-, 2-butene- and isobutene-containing C4 hydrocarbon stream which may comprise up to 3000 ppm by weight, of 1,3-butadiene, by reducing the content of oxygenates... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.c.

20090018279 - Method for controlling sheeting in gas phase reactors: Embodiments of the present invention relate to measuring and controlling static in a gas phase reactor polymerization. In particular, embodiments relate to monitoring carryover static in an entrainment zone during gas phase polymerization to determine the onset of reactor discontinuity events such as chunking and sheeting. Embodiments also relate to... Agent: Univation Technologies, LLC

20090018280 - Horizontal trayed reactor: A horizontal trayed reactor operable to facilitate a chemical reaction in a reaction medium flowing therethrough. The reactor can include a plurality of vertically spaced trays disposed within the horizontally elongated vessel shell. The reaction medium can flow in generally opposite directions on vertically adjacent trays so that the reaction... Agent: Jennifer R. Knight

20090018285 - Method for thermally treating polyester pellets to obtain a partial crystallization: The invention relates to a method for thermally treating polyester pellets to obtain a partial crystallization, whereby the polyester melt is delivered to an underwater granulating system and granulated; the thus obtained granulates are carried from the underwater granulating system through a water-solids separator over a short conveying distance; the... Agent: Bohan Mathers

20090018283 - Multi-level tubular reactor with dual headers: A multi-level tubular reactor operable to facilitate a chemical reaction in a reaction medium flowing therethrough. The tubular reactor can include a plurality of horizontally elongated and vertically spaced tubular members coupled to and extending between a pair of horizontally spaced and vertically elongated headers.... Agent: Jennifer R. Knight

20090018281 - Multi-level tubular reactor with internal tray: A multi-level tubular reactor operable to facilitate a chemical reaction in a reaction medium flowing therethrough. The tubular reactor can include a horizontally elongated reactor segment containing a tray that divides the internal volume of the reactor segment into upper and lower chambers. The reaction medium can flow through the... Agent: Jennifer R. Knight

20090018282 - Multi-level tubular reactor with oppositely extending segments: A multi-level tubular reactor operable to facilitate a chemical reaction in a reaction medium flowing therethrough. The tubular reactor can include a plurality of horizontally elongated and vertically spaced reactor segments coupled to and extending outwardly from a common header. One or more of the reactor segments can contain a... Agent: Jennifer R. Knight

20090018284 - Reactor system with optimized heating and phase separation: A reactor system operable to facilitate a chemical reaction in a reaction medium flowing therethrough. The reactor system includes a heat exchanger for heating the reaction medium and a disengagement vessel for disengaging vapor from the heated reaction medium.... Agent: Jennifer R. Knight

20090018286 - System and process for production of polyethylene and polypropylene: A method for producing a polyethylene or polypropylene polymer, or co-polymer thereof, comprises contacting a monomer-containing medium with polymerization catalyst particles in at least one high shear mixing device to form a nanodispersion, wherein the particles have a mean diameter less than 1 micron. The monomer is selected from the... Agent: Conley Rose, P.C. David A. Rose

20090018287 - Fatty acid monomers to reduce emissions and toughen polymers: Novel fatty acid monomers and methods for their synthesis are provided for use in polymerization reactions. Fatty acid monomers are employed as reactive diluents in the polymerization of vinyl esters and polyesters for one or more purposes selected from improving the fracture resistance, lowering the processing viscosity and reducing the... Agent: Knoble, Yoshida & Dunleavy

20090018288 - Crosslinked olefin polymers and process for production thereof: Crosslinked olefin polymers which are reduced in stickiness and improved in rigidity, heat resistance, light resistance, and water resistance while retaining the molding properties such as injection moldability, spinnability, film-forming properties and the physical properties such as toughness (including elongation and break strength) and tackiness; and a process for the... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090018289 - 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 isoolefin monomer, more than 4.1... Agent: Lanxess Corporation

20090018290 - Preparation of supported silyl-capped silica-bound anion activators and associated catalysts: A method for the preparation of olefin polymerization catalysts that are the reaction products of the catalytic reaction of surface hydroxyls of a support with a trialkyl silane to afford hydrogen and the corresponding surface bound alkyl silyl ether and at the same time with a strong Lewis acid which... Agent: Exxonmobil Chemical Company Law Technology

20090018291 - Method of regeneration of titanium-containing molecular sieve catalyst: Disclosed herein is a method of regenerating a titanium-containing molecular sieve catalyst. Particularly, this invention provides a method of regenerating a titanium-containing molecular sieve catalyst used in epoxidation of olefin through simple treatment using a mixture solvent comprising aqueous hydrogen peroxide and alcohol. According to the method of this invention,... Agent: Darby & Darby P.C.

20090018292 - Monocyclopentadienyl complexes: Monocyclopentadienyl complexes in which the cyclopentadienyl system bears at least one bridged keto, thioketo, imino or phosphino group, a catalyst system comprising at least one of the monocyclopentadienyl complexes and a process for preparing polyolefins by polymerization or copolymerization of olefins in the presence of the catalyst system.... Agent: Basell Usa Inc.

20090018293 - Process for the preparation of a metaloorganic compound comprising at least one imine ligand: The invention relates to a process for the preparation of a metalorganic compound, comprising at least one imine ligand, characterized in that an imine ligand according to formula 1, or the HA adduct thereof, wherein HA represents an acid, of which H represents its proton and A its conjugate base,... Agent: Nixon & Vanderhye, PC

20090018294 - Terminally iodized polyfluoroalkane oligomer and process for producing the same: e

20090018295 - Polymers for preventing or reducing aluminosilicate scale in a bayer process: Materials and a process are provided whereby polymers with the pendant group or end group containing —Si(OR″)3 (where R″ is H, an alkyl group, Na, K, or NH4) are used to control aluminosilicate scaling in a Bayer process. When materials of the present invention are added to the Bayer liquor... Agent: Cytec Industries Inc.

20090018296 - Norbornene addition copolymer and moldings: A norbornene addition copolymer obtained by subjecting a norbornene monomer (A), an aromatic vinyl compound (B), and an α-olefin having 2 to 20 cabon atoms (C) to addition copolymerization, the sum of the content of repeating units derived from the norbornene monomer (A) and the content of repeating units derived... Agent: Birch Stewart Kolasch & Birch

20090018297 - Halogenated terpolymers of isobutylene, diolefin monomer and styrenic monomer: A halogenated butyl polymer having improved properties, the butyl polymer derived from a monomer mixture comprising a C4 to C8 monoolefin monomer, a C4 to C14 multiolefin monomer and a styrenic monomer with a catalyst system to produce the butyl polymer. The improved properties include faster cure, higher maximum torque,... Agent: Lanxess Corporation

20090018298 - Copolymers formed by radical polymerization: Certain copolymers formed from alkenes and one or more activated alkenes. In particular copolymers of isobutylene and one or more activated alkenes. Activated alkenes are, for example, selected from alkyl acrylates, alkyl methacrylates, maleic anhydride, or isobutenyl succinic anhydride.... Agent: Greenlee Winner And Sullivan P C

20090018299 - Ethylenic polymer and molded article obtained therefrom: r

20090012245 - Carbonyl hydrogenated ketone aldehyde resins, devoid of formaldehyde, based on formaldehyde and associated production method: The invention relates to formaldehyde-free, carbonyl-hydrogenated ketone-aldehyde resins based on formaldehyde and having a low fraction of crystallizable compounds, low viscosity, very low color number, and very high heat stability and light stability, and also to a process for preparing them.... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090012246 - Polymerization catalyst comprising amidine ligand: The invention relates to a process for the preparation of a polymer comprising at least one aliphatic or aromatic hydrocarbyl C2-20 olefin in the presence of an ionic catalyst comprising an organometallic compound and an activator, and optionally a scavenger, characterized in that the organometallic compound is a compound according... Agent: Nixon & Vanderhye, PC

20090012247 - Process for the preparation of an olefin polymerisation catalyst: This invention relates to a process for the preparation of an olefin polymerisation catalyst, to the use of the catalyst in olefin polymerisation and to the catalyst and polymers obtained. In particular, the invention relates to the preparation of a catalyst comprising an organometallic compound of a transition metal of... Agent: Ballard Spahr Andrews & Ingersoll, LLP

20090012248 - High metathesis activity ruthenium and osmium metal carbene complexes: where M is Os or Ru; R1 is hydrogen; R is selected from the group consisting of hydrogen, substituted or unsubstituted alkyl, and substituted or unsubstituted aryl; X and X1 are independently selected from any anionic ligand; and L and L1 are independently selected from any neutral electron donor. The... Agent: Nixon Peabody, LLP

20090012249 - Novel surface active prepolymers with both fluorine-containing groups and hydrophilic groups: Provided are surface modified contact lenses formed from one or more fumaric- or itaconic-containing prepolymers having polymerizable functionality that is complimentary to polymerizable hydrophilic polymers.... Agent: Glenn D. Smith Bausch & Lomb Incorporated

20090012250 - Novel polymerizable surface active monomers with both fluorine-containing groups and hydrophilic groups: Provided are surface modified contact lenses formed from one or more fumaric- or itaconic-containing prepolymers having polymerizable functionality that is complimentary to polymerizable hydrophilic polymers.... Agent: Glenn D. Smith Bausch & Lomb Incorporated

20090012251 - Process for making a monofilament-like product: The invention relates to a process for making a monofilament-like product from a precursor containing at least one strand of fibres made from ultra-high molar mass polyethylene, comprising a) exposing the precursor to a temperature within the melting point range of the polyethylene for a time sufficient to at least... Agent: Nixon & Vanderhye, PC

20090005520 - Fouling prevention in polymerization reactors: Reactor designs and processes for operating such reactor designs to minimize or eliminate fouling in homogeneous polymerization processes (solution and supercritical). The process includes providing a reactor with one or more feed entry ports, wherein the reactor feed components are fed through each of the one or more feed entry... Agent: Exxonmobil Research And Engineering Company

20090005521 - System and process for production of polyvinyl chloride: A method is disclosed for producing polyvinyl chloride which includes mixing a vinyl chloride solution with an initiator solution in at least one high shear mixing device comprising at least one rotor/stator set producing a rotor tip speed of at least 5.1 m/sec (1000 ft/min), to form a polymerization mixture;... Agent: Conley Rose, P.C. David A. Rose

20090005522 - Process for preparing a poly-1-olefin in the presence of a ziegler catalyst: The invention relates to a process for preparing a poly-1-olefin by polymerization of a 1-olefin of the formula R4CH═CH2, where R4 is hydrogen or an alkyl radical having from 1 to 10 carbon atoms, in suspension, in solution or in the gas phase, at a temperature of from 20 to... Agent: Basell Usa Inc.

20090005523 - Process for the preparation of atactic 1-butene polymers: e

20090005524 - Catalysts for ethylene polymerization, main catalyst components thereof and process for preparing the same: The invention discloses a process for preparing a titanium-containing main catalyst component, comprising the steps of: (i) reacting a magnesium compound having a formula (MgRX)p(MgX2)q, where R is an alkyl having 3 to 12 carbon atoms, X is halogen, and q:p=0:1 to 1.0:1, with an alcohol to form a magnesium-containing... Agent: Birch Stewart Kolasch & Birch

20090005525 - Catalyst composition comprising group 4 transition metal complexes and method for preparing polyolefins using the same: The present invention relates to a catalyst composition comprising a novel structure of a Group 4 transition metal compound, to a method for preparing the same, and to a method for preparing a polyolefin using the catalyst composition. The method for preparing a polyolefin according to the present invention can... Agent: Lerner, David, Littenberg, Krumholz & Mentlik

20090005526 - Tridentate metal catalyst for olefin polymerization: where, M is a Group IV or a Group IV transition metal, B is a bridge group containing at least two carbon atoms, A′ and A″ are organogroups, each containing a heteroatom selected from the group consisting of oxygen, sulfur, nitrogen and phosphorus, X is selected from the group consisting... Agent: Fina Technology Inc

20090005527 - Phosphonic compounds and methods of use thereof: Described herein are methods for producing phosphonic compounds and compounds thereof. Stable compositions of unsaturated phosphonic acid monomers are also described. Additionally, the synthesis and use of new polymers produced from phosphonic acid monomers are presented.... Agent: Gardner Groff Greenwald & Villanueva. PC

20090005528 - Soluble silicone prepolymers: In one aspect, the invention relates to silicon-based prepolymers. The disclosed prepolymers exhibit satisfactory solubility in aqueous solutions or hydrophilic solutions and can overcome undesirable shrinkage, expansion, and related problems possessed by conventional silicone monomers and related conventional polymerization techniques by producing hydrogels from a crosslinkable prepolymer. Also disclosed are... Agent: Ballard Spahr Andrews & Ingersoll, LLP

20090005529 - S-s'-bis-(alpha, alpha'-disubstituted-alpha\"-acetic acid) - trithiocarbonates and derivatives as initiator - chain transfer agent - terminator for controlled radical polymerizations and the process for making the same: A s,s′-bis-(α,α′-disubstituted-α″-acetic acid)-trithiocarbonate and derivatives thereof can be used as an initiator, chain transfer agent, or terminator for polymerization of monomers such as free radical polymerizable monomers. Homopolymers, copolymers, and the like as well as block copolymers can be made utilizing the trithio carbonate compound such as in a living... Agent: Legal Department Lubrizol Advanced Materials, Inc