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| Number | Title | Issue Date |
| 8183328 | Compositions comprising grafted and crosslinked LLDPE's, Methods for making same, and articles made therefrom The present invention relates to polymer compositions comprising a grafted and at least partially crosslinked mLLDPE that is the reaction product of: (i) a mLLDPE having a density from 0.910 g/cm3 to less than 0.940 g/cm3 and an I2 f... | 05/22/2012 |
| 8124019 | Clog-resistant pump assembly for slurry loop reactor The pump assembly includes an impeller rotatably mounted in a pipe of the reactor having blades that generate a flow of fluid slurry through the pipe, a nosecone protruding in an upstream direction in front of the impeller blades that rotates along with the blades, ... | 02/28/2012 |
| 8076524 | Process for generating alpha olefin comonomers The present invention relates to a method for preparing olefin comonomers from ethylene. The comonomer generated can be used in a subsequent process, such as a polyethylene polymerization reactor. The comonomer generated can be transported, optionally without isolat... | 12/13/2011 |
| 8076000 | Tie-layer materials for use with ionomer-based films and sheets as skins on other materials The present invention relates to new combinations of tie-layers and backing layers and/or substrates for making (1) new multilayer structures formed from one or more ionomers and one or more tie-layers, and optionally a backing layer to form laminates, (2) new compo... | 12/13/2011 |
| 8049053 | Method of synthesizing an olefin product from an oxygenate feedstock utilizing silicoaluminophosphate molecular sieves In a method of synthesizing a silicoaluminophosphate molecular sieve, a synthesis mixture is prepared by combining a source of phosphorus and at least one organic directing agent; and then introducing a source of aluminum into the combination of the phosphorus sourc... | 11/01/2011 |
| 8048971 | Process for the production of polyethylene and ethylene copolymers The invention provides a process and an apparatus for the high pressure polymerization of ethylene in which a jet pump is used to pump a fluid into a polymer/monomer product mixture leaving a bumped tubular reactor. The fluid may be recycled monomer or another fluid... | 11/01/2011 |
| 8048402 | Synthesis of molecular sieves having the chabazite framework type and their use in the conversion of oxygenates to olefins The synthesis of a crystalline aluminophosphate or silicoaluminophosphate molecular sieve having a chabazite-type framework type is conducted in the presence of an organic directing agent having the formula (I) [R1R2R3N—R... | 11/01/2011 |
| 8047228 | Metering system and use thereof This invention relates to a valve assembly comprising (a) a valve body defining a valve chamber, an inlet port and a discharge port, wherein the inlet port and discharge port communicate with the valve chamber; and (b) a valve member in the valve chamber, the valve ... | 11/01/2011 |
| 7985804 | Rubber toughened compositions, articles, films, and methods of making the same This invention relates to a composition comprising (a) from about 5 to about 50 weight % mEPDM; and (b) from about 95 weight % to about 50 weight % of a first mPE, wherein the weight % is based on the total weight of the mEPDM and the mPE. This invention further rel... | 07/26/2011 |
| 7829750 | Fluidizing a population of catalyst particles having a low catalyst fines content The present invention relates to processes for fluidizing a population of catalyst particles that are depleted of catalyst fines. In one embodiment, the process includes providing a plurality of catalyst particles in the reactor, wherein the catalyst particles have ... | 11/09/2010 |
| 7829030 | Fluidizing a population of catalyst particles having a low catalyst fines content The present invention relates to processes for fluidizing a population of catalyst particles that are depleted of catalyst fines. In one embodiment, the process includes providing a plurality of catalyst particles in the reactor, wherein the catalyst particles have ... | 11/09/2010 |
| 7790941 | Oxygenate-to-olefin conversions in a baffled reactor The invention concerns methods and systems for minimizing back-mixing of feedstock flow in converting oxygenates to olefins. In one embodiment, back-mixing is reduced by providing a reactor that includes baffles to reduce the hydraulic diameter of at least a portion... | 09/07/2010 |
| 7767870 | Riser termination devices for reduced catalyst attrition and losses A gas-solids reaction system with termination devices to connect a riser with one or more separation devices. The termination devices have a radius of curvature that is at least 1.0 times as great as the diameter of the conduit forming the termination device. The te... | 08/03/2010 |
| 7728084 | 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... | 06/01/2010 |
| 7692049 | Hydrocarbon compositions useful for producing fuels and methods of producing the same A hydrocarbon composition comprises at least 90 wt. % of C9 to C20 non-normal olefins, non-normal saturates or combinations thereof based on the weight of the hydrocarbon composition, at least 2 wt. % and not greater than 25 wt. % of C9 | 04/06/2010 |
| 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 |
| 7687675 | Stabilizing catalyst activity during catalyst regeneration This invention is directed to methods of converting oxygenates to olefin products. The methods provided include steps for protecting against deactivation of active molecular sieve catalysts during the conversion process. In particular, the invention provides for met... | 03/30/2010 |
| 7678958 | Method of removing dimethyl ether from an olefin stream This invention is directed to a method of removing dimethyl ether from an olefin stream. The method includes distilling the olefin stream so that the dimethyl ether is separated out of the olefin stream with propane. The olefin stream can then be further distilled t... | 03/16/2010 |
| 7678955 | Porous composite materials having micro and meso/macroporosity A composite material comprises: (a) a porous crystalline inorganic oxide material comprising a first framework structure defining a first set of uniformly distributed pores having an average cross-sectional dimension of from 0.3 to less than 2 nanometers and compris... | 03/16/2010 |
| 7667086 | Olefin oligomerization and biodegradable compositions therefrom A hydrocarbon fluid composition that comprises species of at least two different carbon numbers, an aerobic biodegradability of greater than 40% at 28 days, a cetane number of less than 60, and a certain boiling point range; and a process for making the hydrocarbon ... | 02/23/2010 |
| 7622624 | Crystalline intergrowth material, its synthesis and its use in the conversion of oxygenates to olefins A silicoaluminophosphate molecular sieve is disclosed that comprises first and second intergrown phases of a CHA framework type and an AEI framework type, wherein said first intergrown phase has an AEI/CHA ratio of from about 5/95 to about 40/60 as determined by DIF... | 11/24/2009 |
| 7619128 | Stabilizing catalyst activity during catalyst regeneration This invention is directed to methods of converting oxygenates to olefin products. The methods provided include steps for protecting against deactivation of active molecular sieve catalysts during the conversion process. In particular, the invention provides for met... | 11/17/2009 |
| 7598197 | Catalyst cooling processes utilizing steam superheating This invention provides processes, systems and devices for cooling catalyst, preferably regenerated catalyst, by superheating steam and boiling water. The inventive process advantageously provides ideal cooling conditions while ensuring minimal hydrothermal deactiva... | 10/06/2009 |
| 7528201 | Synthesis of silicoaluminophosphate molecular sieves In a method of synthesizing a silicoaluminophosphate molecular sieve comprising a CHA framework type material, an AEI framework type material, or a material comprising at least one intergrown phase of an AEI framework type and a CHA framework type, the amount of alk... | 05/05/2009 |
| 7384885 | Catalyst activation and resins therefrom The present invention relates to the removal of hydrocarbon residues from a catalyst and more specifically the air activation of a catalyst containing hydrocarbon residues. It also relates to extruded pipe and utility conduit resins comprising polyethylene, househol... | 06/10/2008 |
| 7301065 | Molecular-sieve catalyst composition, its making and use in conversion processes The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to making a formulated mo... | 11/27/2007 |
| 7247287 | Synthesis of aluminophosphates and silicoaluminophosphates The invention is directed to a method of synthesising silicoaluminophosphate and aluminophosphate molecular sieves using synthesis templates that contain at least one template of general formula R1R2N—R3, wherein R1 and ... | 07/24/2007 |
| 7034090 | Continuous slurry polymerization volatile removal A process/apparatus is disclosed for continuously separating a liquid medium comprising diluent and unreacted monomers from a polymerization effluent comprising diluent, unreacted monomers and polymer solids, comprising a continuous discharge of the polymerization e... | 04/25/2006 |
| 6926868 | Continuous slurry polymerization volatile removal A process/apparatus is disclosed for continuously separating a liquid medium comprising diluent and unreacted monomers from a polymerization effluent of a slurry loop reactor containing a flow of slurry therein, comprising a discharge conduit extending a distance in... | 08/09/2005 |
| 6858682 | Continuous slurry polymerization volatile removal A process/apparatus is disclosed for continuously separating a liquid medium comprising diluent and unreacted monomers from a polymerization effluent comprising diluent, unreacted monomers and polymer solids, comprising a continuous discharge of the polymerization e... | 02/22/2005 |
| 6833415 | Continuous slurry polymerization process and appparatus A process/apparatus is disclosed for continuously separating a liquid medium comprising diluent and unreacted monomers from a polymerization effluent comprising diluent, unreacted monomers and polymer solids, comprising a continuous discharge of the polymerization e... | 12/21/2004 |
| 6800698 | Continuous slurry polymerization volatile removal A process/apparatus is disclosed for continuously separating a liquid medium comprising diluent and unreacted monomers from a polymerization effluent comprising diluent, unreacted monomers and polymer solids, comprising a continuous discharge of the polymerization e... | 10/05/2004 |
| 6372847 | Polyolefin compositions having improved low temperature toughness Disclosed are blends of a propylene-based polymer, an elastomer, and optionally an ethylene-based polymer, having improved low temperature toughness. The elastomer is preferably a copolymer of ethylene, one or more C3 -C20 -ol... | 04/16/2002 |
| 6140643 | Method for identification of unknown substances The present invention relates to a method for determining the mineral composition of an unknown material using both a fuzzy classification system and a confidence measure of substances identified by the fuzzy classification system. The method can be adapt... | 10/31/2000 |
| 6112155 | Multiple suppression in geophysical data This invention is a method of attenuating multiples in seismic data, particularly three-dimensional seismic data in which seafloor roughness is present. The method relies on an efficient ray-tracing procedure to determine travel-times for each multiple. T... | 08/29/2000 |
