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| Number | Title | Issue Date |
| 7858719 | Polymerization process The present invention relates to a gas phase process for polymerizing one or more hydrocarbon monomer(s) in the presence of a catalyst system and a fluorinated hydrocarbon, where the fluorinated hydrocarbon is present at a partial pressure of 6.9 to 348 kPa in the r... | 12/28/2010 |
| 7799882 | Polymerization process This invention relates to a multiple phase polymerization process to produce polyolefins comprising contacting olefins and a homogeneous catalyst or catalyst system at a temperature between the melting point of the dry polymer and 80° C. below the melting point of ... | 09/21/2010 |
| 7741420 | Polymer production at supercritical conditions This invention relates to a process to polymerize olefins comprising contacting, under supercritical conditions, olefin monomers with a catalyst compound, an activator, optional comonomer, and optional hydrocarbon diluent or solvent. ... | 06/22/2010 |
| 7700699 | Polymerization process This invention is directed to processes of making polymer in the presence of a fluorinated hydrocarbon and recovering the polymer. The processes provided enable polymerization processes to be practiced with minimal fouling in the reaction system, and allows for the ... | 04/20/2010 |
| 7691956 | 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 to... | 04/06/2010 |
| 7449530 | Polymerization process This invention is directed to processes of making polymer in the presence of a fluorinated hydrocarbon and recovering the polymer. The processes provided enable polymerization processes to be practiced with minimal fouling in the reaction system, and allows for the ... | 11/11/2008 |
| 7425601 | Polymers with new sequence distributions The invention relates to new polymerization processes including diluents including hydrofluorocarbons and their use to produce novel polymers with new sequence distributions. In particular, the invention relates to copolymers of an isoolefin, preferably isobutylene,... | 09/16/2008 |
| 7423103 | Low fouling and high activity polymerization process This invention is directed to a polymerization process that is carried out at relatively high productivity levels and with relatively low fouling. The process includes mixing together a catalyst system, at least one monomer and a hydrofluorocarbon to produce the pol... | 09/09/2008 |
| 7423100 | Polymerization processes The invention provides for polymerization processes to produce polymers utilizing boiling pool reactor systems and diluents including hydrofluorocarbons. ... | 09/09/2008 |
| 7414100 | Polymerization process This invention relates to a process to increase the amount of polymer solute in a polymerization medium or effluent comprising introducing a fluorocarbon into the polymerization medium or effluent in an amount effective to increase the amount of polymer solute in th... | 08/19/2008 |
| 7414101 | Polymerization processes The invention provides for a process to produce polymers utilizing a hydrofluorocarbon diluent. ... | 08/19/2008 |
| 7402636 | Method and apparatus for decreasing polymer deposition The disclosure provides a slurry polymerization system and method to decrease polymer deposition on reactor surfaces using an oxygenate such as alcohol (16) supplied to the polymerization medium (32) separate from the catalyst feed (34). ... | 07/22/2008 |
| 7399814 | Living radical polymerization method A highly active and environment-friendly catalyst for use in a living radical polymerization is provided. A catalyst for use in a living radical polymerization method is provided. The catalyst comprises a central element, which is selected from germanium, tin... | 07/15/2008 |
| 7365115 | Composition for antireflection coating and method for forming pattern An anti-reflective coating film is formed by applying on a chemically amplified photoresist film an anti-reflective coating composition comprising an alkali-soluble fluorine-containing polymer, an acid, an amine and a solvent capable of dissolving these components a... | 04/29/2008 |
| 7351779 | Polymerization process and reactor system A process for polymerizing one or more monomers is provided. In at least one specific embodiment, the process includes preparing a mixture comprising the one or more monomers, a catalyst system and a fluorinated hydrocarbon, preferably a hydrofluorocarbon. A fluorin... | 04/01/2008 |
| 7348386 | Process for producing fluorocopolymer, fluorocopolymer, and molded object The present invention relates to a method for producing a fluorocopolymer which comprises a polymerization reaction of a fluorine-containing ethylenic monomer with a fluorovinyl ether derivative represented by the following general formula (I): CF2 | 03/25/2008 |
| 7342079 | Polymerization process and reactor system This invention is directed to processes for making polymer in the presence of a hydrofluorocarbon, and for the recovery of polymer substantially free of dissolved hydrocarbons and hydrofluorocarbons. The processes provided enables polymerization processes to be prac... | 03/11/2008 |
| 7332555 | Polymers with new sequence distributions The invention relates to new polymerization processes including diluents including hydrofluorocarbons and their use to produce novel polymers with new sequence distributions. In particular, the invention relates to copolymers of an isoolefin, preferably isobutylene,... | 02/19/2008 |
| 7332554 | Polymers with new sequence distributions The invention relates to new polymerization processes including diluents including hydrofluorocarbons and their use to produce novel polymers with new sequence distributions. In particular, the invention relates to copolymers of an isoolefin, preferably isobutylene,... | 02/19/2008 |
| 7300987 | Polymerization process The present invention relates to a continuous gas phase process comprising polymerizing one or more hydrocarbon monomer(s) in a fluidized bed reactor in the presence of catalyst system or polymerization catalyst and a condensable fluid for a period of at least 12 ho... | 11/27/2007 |
| 7300989 | Dispersions containing bicomponent fluoropolymer particles and use thereof The present invention provides a method of preparing an aqueous dispersion of poly(perfluorovinyl ether) homopolymers. The present invention further relates to a method of making an aqueous fluoropolymer dispersion comprising bicomponent particles of poly(perfluorov... | 11/27/2007 |
| 7271231 | Polymerization of olefins Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and ... | 09/18/2007 |
| 7253240 | Explosion-free process for the production of polytetrafluoroethylene Use of non-water-soluble organic fluorinated compounds, which are gaseous under the polymerization conditions and act as chain transfer agent in the gas phase, as explosion suppressors in the emulsion polymerization of tetrafluoroethylene. ... | 08/07/2007 |
| 7247690 | Melt-fabricable tetrafluoroethylene/fluorinated vinyl ether copolymer prepared by suspension polymerization Melt-fabricable, tough copolymer of tetrafluoroethylene and fluorinated vinyl ether is produced in a suspension polymerization process by copolymerizing tetrafluoroethylene and fluorinated vinyl ether in a pressurized, agitated reaction vessel which contains aqueous... | 07/24/2007 |
| 7232872 | Polymerization processes The invention provides for a process to produce polymers utilizing a hydrofluorocarbon diluent. ... | 06/19/2007 |
| 7229575 | Over-current protection device and conductive polymer composition thereof The conductive polymer composition used in an over-current protection device blends a polymer substrate (for instance, PVDF) with the polyolefin and the conductive filler of carbon black alike. The polyolefin comprises of two monomers along the carbon chain to form ... | 06/12/2007 |
| 7214750 | Polymerization processes The invention relates to new processes to produce polymers utilizing bayonette cooled slurry reactor systems and diluents including hydrofluorocarbons. ... | 05/08/2007 |
| 7199196 | Dispersions containing perfluorovinyl ether homopolymers and use thereof The present invention provides a method of preparing an aqueous dispersion of poly(perfluorovinyl ether) homopolymers. The present invention further relates to a method of making an aqueous fluoropolymer dispersion comprising bicomponent particles of poly(perfluorov... | 04/03/2007 |
| 7160967 | Fluorovinyl ethers and polymers obtainable therefrom Fluorovinyl ethers having the formula CFX═CXOCF2OR, wherein R is a C2–C6 linear, branched or C5–C6 cyclic (per)fluoroalkyl group, or a C2–C6 linear, branched (per)fluoro oxyalkyl gr... | 01/09/2007 |
| 7138470 | Fluoroelastomers with improved low temperature property and method for making the same A compound is prepared, suitable for forming fluoroelastomers, having the unique features of a low glass transition temperature and desirable physical properties. The compound generally comprises an elastomeric copolymer, a curable component, and at least one minera... | 11/21/2006 |
| 7129009 | Polymer-liquid compositions useful in ultraviolet and vacuum ultraviolet uses This invention relates to a fluoropolymer nanocomposite comprising a fluoropolymer phase and an inorganic oxide phase dispersed throughout, said inorganic oxide phase having either no particles or particles substantially all of which have a particle size of less tha... | 10/31/2006 |
| 7125941 | Aqueous emulsion polymerization process for producing fluoropolymers The present invention provides a method of making a fluoropolymer through emulsion polymerization of one or more fluorinated monomers in an aqueous phase in the presence of a fluorinated surfactant. At least part of the fluorinated surfactant is added to the aqueous... | 10/24/2006 |
| 7125938 | Atom or group transfer radical polymerization A polymerization process comprising initiating a first polymerization of monomers using an initiator functionalized with an ATRP initiating site, wherein the first polymerization is selected from the group of cationic polymerization, anionic polymerization, conventi... | 10/24/2006 |
| 7122607 | Polymerization process The present invention relates to a continuous gas phase process comprising polymerizing one or more hydrocarbon monomer(s) in a fluidized bed reactor in the presence of catalyst system or polymerization catalyst and a condensable fluid for a period of at least 12 ho... | 10/17/2006 |
| 7122610 | Method of producing thermoplastic fluoropolymers using alkyl sulfonate surfactants Nonfluorinated surfactants selected from C7–C20 linear 1-alkanesulfonates, 2-alkanesulfones, and 1,2-alkanedisulfones are particularly effective for stabilizing emulsions in preparing non-elastomeric fluoropolymers containing at least 71 wt % vinylidene fluoride a... | 10/17/2006 |
| 7115688 | Nanoparticles with polymer shells The invention provides a method of preparing nanoparticles having at least one polymer shell attached to them, each polymer shell having a selected property or properties. The method comprises attaching initiation monomers to the surfaces of the nanoparticles, conta... | 10/03/2006 |
| 7115672 | Production method of porous resin A production method of a porous resin or an intermediate therefor, which comprises a step of producing a styrene-acyloxystyrene-divinylbenzene copolymer comprising suspension copolymerization of a styrene monomer, an acyloxystyrene monomer and a divinylbenzene monom... | 10/03/2006 |
| 7105619 | Fluorine-containing copolymer A fluorine-containing copolymer obtained by copolymerizing tetrafluoroethylene, hexafluoropropylene and perfluoro vinyl ether as component monomers, wherein a weight ratio of tetrafluoroethylene, hexafluoropropylene and perfluoro vinyl ether units constituting the f... | 09/12/2006 |
| 7101944 | Golf balls comprising non-ionomeric fluoropolymer A golf ball comprising a core, a cover, and an intermediate layer disposed between the core and the cover, wherein the intermediate layer comprises a non-ionomeric fluoropolymer having a formula: wherein X1 ... | 09/05/2006 |
| 7094839 | Process for making a fluoroelastomer Aqueous microemulsions obtained from a perfluorinated alkane sulphonic or carboxylic acid or salt thereof, a liquid fluorinated monomer comprising a cure-site and optionally an inert liquid and highly fluorinated hydrocarbon compound. The aqueous microemulsion may b... | 08/22/2006 |
