Patents Represented by Attorney Christopher J. Whewell
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Patent number: 6602839Abstract: Provided herein are sulfosuccinamates made using polyetheramines as intermediates. The sulfosuccinamates according to the invention exhibit excellent detergency when employed in formulations used as hard surface cleaners, laundry detergents, and dishwashing liquids. In addition, the sulfosuccinamates according to the invention have an unexpectedly high degree of water hardness tolerance, and are easier to produce than similar materials found in the prior art owing to the fact that the product and its intermediates exist in liquid form.Type: GrantFiled: January 5, 2001Date of Patent: August 5, 2003Assignee: Huntsman Petrochemical CorporationInventors: George A. Smith, Raeda M. Smadi
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Patent number: 6603042Abstract: Disclosed herein are compositions comprising organic anhydrides having a reduced tendency to discolor with time, even when held at elevated temperatures for extended times. The compositions are produced by mixing at least one acid halide and various derivatives of hydroxy carboxylic acids with an anhydride to form a homogenous solution. Also disclosed is a process for preparing the compositions.Type: GrantFiled: August 20, 2002Date of Patent: August 5, 2003Assignee: Huntsman Petrochemical CorporationInventor: Henry C. Brown
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Patent number: 6593495Abstract: Disclosed herein are compositions comprising organic anhydrides having a reduced tendency to discolor with time, even when held at elevated temperatures for extended times. The compositions are produced by mixing at least one acid halide and various derivatives of hydroxy carboxylic acids with an anhydride to form a homogenous solution. Also disclosed is a process for preparing the compositions.Type: GrantFiled: January 10, 2000Date of Patent: July 15, 2003Assignee: Huntsman Petrochemical CorporationInventor: Henry C. Brown
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Patent number: 6586164Abstract: The present invention is directed toward effective photoresist stripping compositions that are less corrosive and do not cause skin irritation. One form of the present invention is a composition useful as a photoresist remover that includes an alkylene carbonate, and one or more additional components chosen from the group that includes alkyl hydrogen peroxides, hydroxyalkyl ureas, urea-hydrogen peroxides, N-substituted morpholines and alcohols. Another form of the present invention is a composition for removing photoresist from a surface that includes an N-substituted morpholine.Type: GrantFiled: June 6, 2002Date of Patent: July 1, 2003Assignee: Huntsman Petrochemical CorporationInventors: James R. Machac, Jr., Edward T. Marquis, Wheeler C. Crawford
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Patent number: 6562776Abstract: This invention is directed to detergent compositions which employ sulfonated linear alkylbenzenes as surfactants, wherein the sulfonated linear alkylbenzenes have a higher content of the sulfonated 2-phenyl alkylbenzene isomers than was previously available in sulfonated phenyl alkylbenzene surfactants of the prior art. Cleaning compositions according to the invention are more effective as cleaning agents over their counterparts of prior art which contain sulfonated linear alkylbenzenes having lower contents of the 2-phenyl alkylbenzene isomers, owing to an unexpected increase in tolerance of water hardness minerals normally associated with precipitation of the active detergent agent. Solid sulfonate salts of alkylbenzenes are also provided, including dry formulations containing same.Type: GrantFiled: April 26, 2000Date of Patent: May 13, 2003Assignee: Huntsman Petrochemical CorporationInventors: George A. Smith, Samir S. Ashrawi, Raeda M. Smadi, Prakasa R. Anantaneni
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Patent number: 6552121Abstract: A process for preparing alkali silicate—polyisocyanate composites without catalyst separation. The process involves blending a catalyst and a polyisocyanate to form a first component, and blending an alkali silicate and water to form a second component. The first and second components are then mixed together to form a reactive mixture that reacts to form a hardened composite. The progression of the reaction proceeds without excessive foaming, high exotherms, or the release of an offensive odor. Sodium silicate—polyisocyanate composites prepared according to the above process, and a process for using the alkali silicate—polyisocyanate composites to consolidate and seal various types of formations in mining, tunneling, and other construction projects are also disclosed. Any void volume which is capable of receiving a flowable precursor of a composite formulation according to the invention prior to its cure is suitable for treatment according to the present invention.Type: GrantFiled: December 11, 2001Date of Patent: April 22, 2003Assignee: Huntsman Petrochemical CorporationInventor: Robert Allison Grigsby, Jr.
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Patent number: 6548038Abstract: A process is provided for increasing the concentration of sulfuric acid in a waste solution of sulfuric acid previously used to produce titanium dioxide. The waste solution of sulfuric acid is fed into a first heat exchanger/evaporator stage that operates at a sulfuric acid concentration of less than 30%. A portion of the solution discharged from the first heat exchanger/evaporator is fed into a heat exchanger/evaporator that uses waste heat and operates at a sulfuric acid concentration that is greater than 40%, while the remainder of the solution discharged from the first heat exchanger/evaporator and the solution discharged from the heat exchanger/evaporator using waste heat is fed into a second heat exchanger/evaporator that operates at a sulfuric acid concentration that is greater than 50%.Type: GrantFiled: January 29, 2001Date of Patent: April 15, 2003Assignee: Tioxide Group Services LimitedInventor: James Henry Bush
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Patent number: 6539946Abstract: The invention relates to methods of improving the bodily appearance in the case of cellulite. In order to achieve an effective improvement without the direct contact of sound heads, electrodes or winding foils on the skin the invention suggests that the body or a part of the body of a person is received by a known chamber provided with at least one pump which chamber is subsequently sealed in a gas-tight manner and exposed to the action of an alternating pressure. If the pressure in the chamber is lowered (negative pressure) relative to the atmospheric ambient pressure the lymph vessels widen and receive tissue fluid and residual metabolic products associated with the lymph. The subsequent raising of the pressure in the chamber either to the atmospheric ambient pressure or an excess pressure [superpressure] in the range of a maximum of 20-60 mbar produces a directed flow of lymph and a removal of the residual metabolic products to the filtering organs.Type: GrantFiled: July 10, 2001Date of Patent: April 1, 2003Inventor: Rudolf Weyergans
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Patent number: 6534555Abstract: Provided are catalyst systems which produce flexible polyurethane polyester foams that are color stable, are lower in odor, and uses less catalysts than current most commonly practiced technology. The use of lower amounts of catalysts with low vapor pressure reduces worker exposure to alkaline corrosive materials, reduces pollution through less pounds of volatile organic chemicals (VOC's) and is less expensive.Type: GrantFiled: September 10, 2001Date of Patent: March 18, 2003Assignee: Huntsman Petrochemical CorporationInventors: Ernest L. Rister, Jr., Robert A. Grigsby, Jr., Robert L. Zimmerman
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Patent number: 6511646Abstract: A process for producing chlorine and iron oxide from iron chloride (which may be generated as a by-product of the direct chlorination of titaniferous ores) comprises the steps of converting ferrous chloride to ferric chloride by reaction with chlorine, separating the solids from the gaseous products, reacting the gaseous ferric chloride with oxygen, condensing unreacted ferric chloride onto iron oxide particles, separating the gaseous products from the iron oxide particles and recycling the iron oxide particles to the oxidation or condensation step.Type: GrantFiled: January 12, 2001Date of Patent: January 28, 2003Assignee: Tioxide Group Services LimitedInventors: Barry Neil Hooper, Martin Hirsch, Andreas Orth, Brian Bennett, John Frank Davidson, Martin Conduit, Neil Fallon, Peter John Davidson
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Patent number: 6498278Abstract: A method for the preparation of &ggr;-hydroxy ethers from cyclic organic carbonates and active-hydrogen-containing compounds in one form includes the steps of contacting an active-hydrogen-containing compound and a cyclic organic carbonate compound containing a six-membered ring, and a catalyst, running the reaction at a suitable temperature, and isolating the &ggr;-hydroxy ether as a mixture that can be purified or used directly as produced in the reaction.Type: GrantFiled: September 5, 2001Date of Patent: December 24, 2002Assignee: Huntsman Petrochemical CorporationInventors: John H. Clements, Howard P. Klein, Edward T. Marquis
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Patent number: 6495722Abstract: Provided herein are polyurethane foams which may be prepared by spray techniques. The foams of the invention are prepared using conventional isocyanates and a novel Mannich condensate polyol having a hydroxy number in the range of 250-340 and a viscosity of 3500 cps or less, and wherein the Mannich condensate polyol is derived from nonylphenol, formaldehyde, an alkanolamine, and propylene oxide as the sole alkoxylating agent. Polyurethane foams prepared according to the invention possess superior physical properties over sprayed polyurethane foams prepared using Mannich condensate polyols which are made using mixtures of propylene oxide and ethylene oxide.Type: GrantFiled: September 17, 2001Date of Patent: December 17, 2002Assignee: Huntsman Petrochemical CorporationInventors: Robert L. Zimmerman, Marshall P. Devine, Patrick L. Weaver
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Patent number: 6488808Abstract: Provided herein are compositions of matter useful in de-inking secondary fibers. A composition according to the invention includes an aqueous solution of an anionic form of a styrene-methacrylic acid copolymer. When a surfactant is used in combination with the copolymers herein described in a de-inking operation, a synergy is observed in that the combination of copolymer and surfactant combination together yield a recycled fiber product having higher brightness level and a lower effective residual ink concentration than recycled fibers produced using either the copolymer or surfactant alone in the same operation.Type: GrantFiled: January 19, 2001Date of Patent: December 3, 2002Assignee: Huntsman Petrochemical CorporationInventors: Duy T. Nguyen, Charles W. Hengst
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Patent number: 6481021Abstract: Provided herein are articles of headwear that comprise a pouch portion which may be charged with ice. Ice so charged is caused to melt under the effects of ambient temperature and is caused to drip from the pouch portion onto the neck of a person wearing such article. According to a preferred form of the invention, the head of a wearer is not contacted by ice or water during use of such article.Type: GrantFiled: August 6, 2001Date of Patent: November 19, 2002Inventor: Ronald C. Spell
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Patent number: 6482292Abstract: Provided herein are compositions of matter useful in de-inking secondary fibers. A composition according to the invention includes an aqueous solution of an anionic form of a styrene-methacrylic acid copolymer. When a surfactant is used in combination with the copolymers herein described in a de-inking operation, a synergy is observed in that the combination of copolymer and surfactant combination together yield a recycled fiber product having higher brightness level and a lower effective residual ink concentration than recycled fibers produced using either the copolymer or surfactant alone in the same operation.Type: GrantFiled: June 6, 2002Date of Patent: November 19, 2002Assignee: Huntsman Petrochemical CorporationInventors: Duy T. Nguyen, Charles W. Hengst
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Patent number: 6479593Abstract: Provided herein are cross-linked super absorbing polymers made by reacting a copolymer having an esterifiable acid group with a cyclic alkylene carbonate. The resulting cross-linked materials have an increased ability to retain absorbed liquids even under the influence of applied stress. Catalysts are also disclosed which are useful in promoting the reaction between the alkylene carbonate and copolymer.Type: GrantFiled: September 10, 2001Date of Patent: November 12, 2002Assignee: Huntsman Petrochemical CorporationInventors: John H. Clements, Howard P. Klein, Edward T. Marquis, James R. Machac, Jr., Katty Darragas
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Patent number: 6476237Abstract: Provided herein is a process for producing alkylene carbonates of ultra-high purity. According to the present invention, certain stages of traditional distillation of alkylene carbonate distillation are replaced by carbon treatment. Alkylene carbonates produced according to the invention have a color of less than 25 (Pt-Co), and are suitable for uses requiring ultra-pure alkylene carbonates.Type: GrantFiled: February 26, 2002Date of Patent: November 5, 2002Assignee: Huntsman Petrochemical CorporationInventors: James R. Machac, Jr., Ralph M. DiGuilio, John R. Sanderson, Ronald L. Savage
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Patent number: 6475708Abstract: The present invention is directed toward effective photoresist stripping compositions that are less corrosive and do not cause skin irritation. One form of the present invention is a composition useful as a photoresist remover that includes an alkylene carbonate, and one or more additional components chosen from the group that includes alkyl hydrogen peroxides, hydroxyalkyl ureas, urea-hydrogen peroxides, N-substituted morpholines and alcohols. Another form of the present invention is a composition for removing photoresist from a surface that includes an N-substituted morpholine.Type: GrantFiled: September 5, 2001Date of Patent: November 5, 2002Assignee: Huntsman Petrochemical CorporationInventors: James R. Machac, Jr., Edward T. Marquis, Wheeler C. Crawford
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Patent number: 6461068Abstract: Provided herein are writing instruments which include a first end portion from which characters may be dispensed, such as an inkpen tip, and a second end portion comprising a correction tape dispensing means. Through use of the present invention, a writer who makes an error using an ink may conveniently invert the writing instrument from an initial position having the inkpen in contact with the paper being written upon, to a second position in which the correction tape dispensing means is in contact with the paper. Such a 180 degree change in the position of the writing instrument is all that is needed to render the writer able to apply a sufficient portion of correction tape to an error in the process for its correction. Through use of the present invention, convenience is increased, while exposure of the writer to harmful volatile chemicals as in the cases when a correction fluid containing a volatile organic compound, such as a halogenated hydrocarbon, is used.Type: GrantFiled: June 7, 2001Date of Patent: October 8, 2002Inventor: Robert Holmes
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Patent number: 6458860Abstract: Provided herein are catalyst systems useful for providing polyurethane foam products which exhibit low fogging characteristics while possessing favorable overall physical properties when used as interior components of automobiles and other motorized vehicles.Type: GrantFiled: January 7, 2002Date of Patent: October 1, 2002Assignee: Huntsman Petrochemical CorporationInventors: Heiko H. Humbert, Robert Allison Grigsby, Jr.