| Patent Number |
Title Of Patent |
Date Issued |
| 6454274 |
Joint assembly for joining a ceramic membrane to a tube sheet |
September 24, 2002 |
| A joint assembly for joining a ceramic membrane of tubular form to a tube sheet used in supporting the ceramic membrane within a reactor. The ceramic membrane is received within a fixture connected to the tube sheet and a follower, extending into the fixture, exerts a force on a high |
| 6332964 |
Multi-phase solid ion and electron conducting membrane with low volume percentage electron condu |
December 25, 2001 |
| A multi-phase solid electrolyte ion transport membrane comprising at least two phases wherein one of the phases comprises an oxygen ion single conductive material. The other phase comprises an electronically-conductive metal or metal oxide conducting phase is present in a low volume |
| 6298671 |
Method for producing, transporting, offloading, storing and distributing natural gas to a market |
October 9, 2001 |
| A method for efficiently producing, transporting, offloading, storing and distributing a natural gas to a marketplace. The method comprising producing the natural gas from a first subterranean formation, liquefying the natural gas to produce a liquefied natural gas, transporting the |
| 6264811 |
Ion conducting ceramic membrane and surface treatment |
July 24, 2001 |
| The present invention provides an ion conducting ceramic membrane selectively permeable to a gas, for instance oxygen and a method of treating such a membrane to improve permeation through the membrane. The membrane is formed by a mass of a substance through which ions of the gas mig |
| 6262220 |
Polyester compositions |
July 17, 2001 |
| Polyester compositions containing terephthalate, 2,6-naphthalate and/or isophthalate moieties, and showing improved properties are disclosed. |
| 6258987 |
Preparation of alcohol-containing gasoline |
July 10, 2001 |
| A process for controlling the composition of a subgrade gasoline so that the subgrade will yield an alcohol-containing gasoline which precisely meets desired specifications when mixed with the desired amount of alcohol. The process involves blending a plurality of blendstocks to prod |
| 6256944 |
Method and system for keeping water from entering dispenser containment sumps |
July 10, 2001 |
| A method and system for preventing water entering a dispenser from collecting in the containment pan. This method utilizes a shield or barrier placed inside the dispenser above the containment pan. The material used to form the barrier is insoluble in water but soluble in the hydroca |
| 6255525 |
Process for preparing purified carboxylic acids |
July 3, 2001 |
| A process for preparing an aromatic carboxylic acid having improved purity comprising contacting at an elevated temperature and pressure a mixture comprising an impure aromatic carboxylic acid and a solvent in the presence of hydrogen gas with a carbon catalyst which is essentially free |
| 6248879 |
Polyanhydride crosslinked fibrous cellulosic products and process for their preparation |
June 19, 2001 |
| A process for preparation of crosslinked cellulosic products containing at least 30 wt. % cellulosic fibers and the polyanhydride crosslinked cellulosic products resulting therefrom wherein a cellulosic material is treated with an aqueous solution of a polycarboxylic acid formed by h |
| 6239321 |
Upgrading light oligomers |
May 29, 2001 |
| A process for upgrading a feedstock comprising lower oligomers and higher oligomers of isobutylene by oligomerizing the lower oligomer fraction thereof to higher molecular weight components. |
| 6228970 |
Poly (biphenyl ether sulfone) |
May 8, 2001 |
| A new poly (biphenyl ether sulfone) having improved polydispersity and also having low levels of low molecular weight oligomer. |
| 6223519 |
Method of generating power using an advanced thermal recuperation cycle |
May 1, 2001 |
| A power generating method that includes the steps of burning a reformed fuel in the presence of air in a combustor of a gas turbine to generate a hot exhaust gas is disclosed. The hot exhaust gas is then passed through a turbine section of the gas turbine to generate power and, thereafte |
| 6207745 |
Flame retardant anti-drip polyamide compositions |
March 27, 2001 |
| This invention is a flame-retardant, anti-dripping polyamide composition comprising a high temperature polyphthalamide, a halogen-containing organic compound, and an anti-drip effective amount of an anti-drip component comprising a polymer formed from at least one ethylenically unsat |
| 6207120 |
Catalytic vent gas treatment system for abatement of volatile chemical emissions |
March 27, 2001 |
| An integrated process for vent gas treatment for the abatement of volatile emissions is disclosed. The vent gas comprises dioxygen, carbon monoxide, hydrocarbons and other organic compounds comprising one or more alkyl halide compound of 1 to 5 carbon atoms. In the preferred embodiment, |
| 6201079 |
Propylene polymer resin made from a high activity catalyst having a broad thermal processing win |
March 13, 2001 |
| A propylene polymer made using a magnesium halide-supported, titanium-containing solid catalyst component having a broad processing window is produced by incorporating into the polymerization catalyst system a selected alkyl methyldimethoxysilane, preferably isobutylmethyl-dimethoxys |
| 6200541 |
Composite materials for membrane reactors |
March 13, 2001 |
| Composite materials of the invention, which include a gas-tight ceramic, a porous metallic support, and an interfacial zone therebetween eliminate the need for mechanical seals between two such dissimilar materials. Oxygen ion-conducting dense ceramic membranes are formed on a porous |
| 6197717 |
Dehydrogenation catalyst and process |
March 6, 2001 |
| A process and catalyst are provided for dehydrogenating a hydrocarbon feedstock and producing an olefinic product. The process comprises contacting the feedstock at dehydrogenation conditions with a dehydrogenation catalyst comprising from about 0.01 weight percent to about 5.0 weigh |
| 6194609 |
Crystallization in a plate heat exchanger |
February 27, 2001 |
| Crystallization of a crystallizable material is achieved through heat exchange in a plate heat exchanger is disclosed. A mixture or solution comprising a crystallizable material is passed through a plate heat exchanger at an appropriate temperature and pressure such that the material |
| 6187718 |
Carbon composite superconductors |
February 13, 2001 |
| Superconducting composites comprising a high thermal conductivity carbon substrate and a layer of ceramic-type superconductor. Particularly attractive for use as a superconducting flexible conductor are composites comprising a high thermal conductivity, low resistivity carbon fiber d |
| 6166266 |
Preparation of polyoxymethylene dimethyl ethers by catalytic conversion of dimethyl ether with f |
December 26, 2000 |
| A particularly useful process which includes the steps of providing a source of formaldehyde formed by conversion of methanol in the presence of a catalyst comprising oxides of molybdenum as an essential catalyst component; and contacting the source of formaldehyde and a predominately |
| 6160186 |
Preparation of polyoxymethylene dimethyl ethers by catalytic conversion of dimethyl ether with f |
December 12, 2000 |
| A particularly useful process which includes the steps of providing a source of formaldehyde formed by conversion of dimethyl ether in the presence of a catalyst comprising copper and zinc; and contacting the source of formaldehyde and a predominately dimethyl ether feedstream with a |
| 6160174 |
Preparation of polyoxymethylene dimethyl ethers by catalytic conversion of dimethyl ether with f |
December 12, 2000 |
| A particularly useful process which includes the steps of providing a source of formaldehyde formed by conversion of methanol in the presence of a catalyst comprising silver as an essential catalyst component; and contacting the source of formaldehyde and a predominately dimethyl ether |
| 6159890 |
Ruthenium-containing catalyst system for olefin metathesis |
December 12, 2000 |
| A ruthenium-containing metathesis catalyst system which contains a ruthenium compound (A), a phosphorus, arsenic, or antimony compound (B), and a compound (C) containing at least one carbon-to-carbon triple bond. The mole ratio of compounds A:B:C is typically in the range of about 1. |
| 6156692 |
Ruthenium-containing catalyst composition for olefin metathesis |
December 5, 2000 |
| A ruthenium-containing metathesis catalyst system which contains a ruthenium compound (A), a phosphorus compound (B), and a compound (C) containing a carbon-to-carbon triple bond. The mole ratio of compounds A:B:C is typically in the range of about 1.0:0.01-100:0.01-100. The rutheniu |
| 6147271 |
Oligomerization process |
November 14, 2000 |
| A process for oligomerizing an acyclic monoolefin monomer in which the oligomerization is controlled to produce predetermined relative amounts of at least two preselected oligomers in a higher boiling fraction of the oligomerization products and the lower boiling products are recycled to |
| 6143851 |
Process for preparation of addition products of difunctional telechelic polyolefins from cyclic |
November 7, 2000 |
| A process for the preparation of an addition product of a linear telechelic difunctional unsaturated polymer containing terminal functional reactive groups other than vinyl groups, involves simultaneously reacting at least one cyclic olefin of from about 4 to 30 carbon atoms, at least on |
| 6137001 |
Process for preparing aromatic carboxylic acids with efficient treatments of gaseous effluent |
October 24, 2000 |
| Processes are disclosed for recovery of hydrogen bromide from one or more alkyl bromide compounds by hydrolyzing the alkyl bromide compounds to hydrogen bromide and corresponding alcohols, and simultaneously separating at least the alcoholic products of hydrolysis from aliphatic mono |
| 6131071 |
Spectral decomposition for seismic interpretation |
October 10, 2000 |
| The present invention is directed generally toward a method of processing seismic data to provide improved quantification and visualization of subtle seismic thin bed tuning effects and other sorts of lateral rock discontinuities. A reflection from a thin bed has a characteristic exp |
| 6129879 |
Propylene polymer fibers and yarns |
October 10, 2000 |
| Process for treating a textile product comprising propylene polymer fibers comprises heating the textile product with the fibers in a substantially relaxed state at at least one temperature that is below the melting point of the propylene polymer but no more than about 20.degree. C. belo |
| 6128580 |
Converted-wave processing in many-layered anisotropic media |
October 3, 2000 |
| The instant invention provides a method for processing converted-wave data into interpretable images using a compact two-parameter model. The method broadly comprises the steps of: collecting both P-wave and converted-wave seismic data; identifying the arrival times of the P-wave and the |
| 6124517 |
Olefin purification by adsorption of acetylenics and regeneration of adsorbent |
September 26, 2000 |
| Processes using heterogeneous adsorbents are disclosed for purification of relatively impure unsaturated hydrocarbons such as olefins, which are typically produced by thermal cracking of suitable hydrocarbon feedstocks, by passing a feed stream, containing acetylenic impurities, and, |
| 6121407 |
Method of making high density polyester compositions |
September 19, 2000 |
| Polyester compositions containing terephthalate, 2,6-naphthalate and/or isophthalate moieties, and showing improved properties are disclosed. |
| 6119778 |
Method for recovering methane from a solid carbonaceous subterranean formation |
September 19, 2000 |
| A method is disclosed for recovering methane from a solid carbonaceous subterranean formation having a production well in fluid communication with the formation and an injection well in fluid communication with the formation. In the method an oxygen-depleted effluent, produced by a c |
| 6114575 |
Process for preparing 2,6-naphthalenedicarboxylic acid |
September 5, 2000 |
| A process for producing 2,6-naphthalenedicarboxylic acid by the liquid phase, exothermic oxidation of 2,6-dimethylnaphthalene comprising adding to a reaction zone oxidation reaction components comprising 2,6-dimethylnaphthalene, a source of molecular oxygen, a solvent comprising an a |
| 6113820 |
Method to repair polyethylene containment sumps |
September 5, 2000 |
| A method of repairing polyethylene fuel containment sumps used in underground storage systems in gasoline and diesel service stations without "welding" the polyethylene, using suitable surface preparation, priming of the affected area, and sealing with a two part rubber compound. |
| 6111159 |
Hydrocarbon conversion process |
August 29, 2000 |
| A method is provided for putting a fresh bed of solid phosphoric acid catalyst into service to catalyze a hydrocarbon conversion process. The method involves establishing hydrocarbon conversion conditions of temperature and pressure in the catalyst bed while it is immersed in a hydro |
| 6107445 |
Method of making high density polyester compositions |
August 22, 2000 |
| Polyester compositions containing terephthalate, 2,6-naphthalate and/or isophthalate moieties, and showing improved properties are disclosed. |
| 6103935 |
Process for production of fumaric acid by isomerization of maleic acid |
August 15, 2000 |
| The present invention relates to a process for the production of fumaric acid by the isomerization of maleic acid at high conversions which comprises heating maleic acid in the presence of phosphoric acid at a temperature sufficient to isomerize the maleic acid to fumaric acid. |
| 6103103 |
Dehydrogenation catalyst and process |
August 15, 2000 |
| A process and catalyst are provided for dehydrogenating a hydrocarbon feedstock and producing an olefinic product. The process comprises contacting the feedstock at dehydrogenation conditions with a dehydrogenation catalyst comprising from about 0.01 weight percent to about 5.0 weigh |
| 6096116 |
Reducing ignition risk for activated carbon |
August 1, 2000 |
| A sorbent material, an activated carbon canister and a method are described which can be utilized to remove organic compounds from a vaporous stream with a relatively greater degree of safety, as compared to previously known methods. In the invention, essentially dry and wetted activated |
| 6092559 |
Device for controlling warp threads for the production of leno fabrics on a textile machine |
July 25, 2000 |
| A device for controlling warp threads in weaving of leno fabrics on a weaving device, such as a loom, has a guide mechanism for stationary warp threads and rotating warp threads. The guide mechanism includes a system of reversibly movable needles with eyes for passage of the stationary w |
| 6092026 |
Seismic signal processing and exploration |
July 18, 2000 |
| An apparatus and method for the exploration of hydrocarbons by obtaining a set of seismic signal traces distributed over a pre-determined three-dimensional volume of the earth and using a computer to: divide the three-dimensional volume into a plurality of vertically stacked and gene |
| 6090877 |
Propylene polymer compositions stabilized with potassium citrate as an acid scavenger |
July 18, 2000 |
| A low smoke forming, acid neutralized propylene polymer composition comprises a propylene polymer and an acid-scavenging amount of mono potassium citrate. |
| 6083585 |
Oxygen scavenging condensation copolymers for bottles and packaging articles |
July 4, 2000 |
| Compositions for scavenging oxygen are disclosed. These compositions comprise condensation copolymers comprising predominantly polyester segments and an oxygen scavenging amount of polyolefin oligomer segments. The polyester segments comprise segments derived from typical bottling and |
| 6083288 |
Fuel stabilizers |
July 4, 2000 |
| A strongly basic, hydrophobic amine which prevents the deposition of fuel-insoluble carboxylate deposits in fuel tanks and fuel transfer equipment is contained in a fuel additive package which minimizes the degradation of a hydrocarbon fuel during storage. |
| 6080905 |
Olefin purification by adsorption of acetylenics and regeneration of adsorbent |
June 27, 2000 |
| Processes using heterogeneous adsorbents are disclosed for purification of olefins such as are typically produced by thermal cracking of suitable hydrocarbon feedstocks, by passing a stream of olefin having from 2 to about 8 carbon atoms, containing acetylenic impurities having the same |
| 6075174 |
BF.sub.3 removal from BF.sub.3 catalyzed olefin oligomer |
June 13, 2000 |
| This invention concerns a process for recovering BF.sub.3 from a BF.sub.3 /promoter complex catalyzed .alpha.-olefin oligomerization product stream, which process comprises thermally cracking the complex in the product stream to yield BF.sub.3 gas, and contacting the BF.sub.3 gas with a |
| 6075100 |
Ternary poly(biphenyl ether sulfone) resin blends having improved environmental stress cracking |
June 13, 2000 |
| Ternary resin blends comprising a poly(biphenyl ether sulfone), a poly(ether sulfone) and a polysulfone, when molded, exhibit very attractive thermal and environmental resistance characteristics together with excellent mechanical properties. The molded articles comprising such ternar |
| 6074131 |
Method for installing form in-place dispenser containment |
June 13, 2000 |
| A method of upgrading the area below a dispenser to contain accidental release harmful materials from contaminating the soil below grade without repiping, electrical changes, or concrete disruption. |
| 6071863 |
Biodegradable polyalphaolefin fluids and formulations containing the fluids |
June 6, 2000 |
| Biodegradable polyalphaolefin fluids which are useful in functional fluid and lubricant compositions are oligomers of mixtures of C.sub.12 and C.sub.14 alphaolefins. The fluids have kinematic viscosities at 100.degree. C. of from 5 to 20 mm.sup.2 /s and a biodegradability as determin |
