Patents Represented by Attorney Christopher J. Whewell
  • Patent number: 6602839
    Abstract: 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: Grant
    Filed: January 5, 2001
    Date of Patent: August 5, 2003
    Assignee: Huntsman Petrochemical Corporation
    Inventors: George A. Smith, Raeda M. Smadi
  • Patent number: 6603042
    Abstract: 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: Grant
    Filed: August 20, 2002
    Date of Patent: August 5, 2003
    Assignee: Huntsman Petrochemical Corporation
    Inventor: Henry C. Brown
  • Patent number: 6593495
    Abstract: 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: Grant
    Filed: January 10, 2000
    Date of Patent: July 15, 2003
    Assignee: Huntsman Petrochemical Corporation
    Inventor: Henry C. Brown
  • Patent number: 6586164
    Abstract: 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: Grant
    Filed: June 6, 2002
    Date of Patent: July 1, 2003
    Assignee: Huntsman Petrochemical Corporation
    Inventors: James R. Machac, Jr., Edward T. Marquis, Wheeler C. Crawford
  • Patent number: 6562776
    Abstract: 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: Grant
    Filed: April 26, 2000
    Date of Patent: May 13, 2003
    Assignee: Huntsman Petrochemical Corporation
    Inventors: George A. Smith, Samir S. Ashrawi, Raeda M. Smadi, Prakasa R. Anantaneni
  • Patent number: 6552121
    Abstract: 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: Grant
    Filed: December 11, 2001
    Date of Patent: April 22, 2003
    Assignee: Huntsman Petrochemical Corporation
    Inventor: Robert Allison Grigsby, Jr.
  • Patent number: 6548038
    Abstract: 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: Grant
    Filed: January 29, 2001
    Date of Patent: April 15, 2003
    Assignee: Tioxide Group Services Limited
    Inventor: James Henry Bush
  • Patent number: 6539946
    Abstract: 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: Grant
    Filed: July 10, 2001
    Date of Patent: April 1, 2003
    Inventor: Rudolf Weyergans
  • Patent number: 6534555
    Abstract: 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: Grant
    Filed: September 10, 2001
    Date of Patent: March 18, 2003
    Assignee: Huntsman Petrochemical Corporation
    Inventors: Ernest L. Rister, Jr., Robert A. Grigsby, Jr., Robert L. Zimmerman
  • Patent number: 6511646
    Abstract: 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: Grant
    Filed: January 12, 2001
    Date of Patent: January 28, 2003
    Assignee: Tioxide Group Services Limited
    Inventors: Barry Neil Hooper, Martin Hirsch, Andreas Orth, Brian Bennett, John Frank Davidson, Martin Conduit, Neil Fallon, Peter John Davidson
  • Patent number: 6498278
    Abstract: 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: Grant
    Filed: September 5, 2001
    Date of Patent: December 24, 2002
    Assignee: Huntsman Petrochemical Corporation
    Inventors: John H. Clements, Howard P. Klein, Edward T. Marquis
  • Patent number: 6495722
    Abstract: 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: Grant
    Filed: September 17, 2001
    Date of Patent: December 17, 2002
    Assignee: Huntsman Petrochemical Corporation
    Inventors: Robert L. Zimmerman, Marshall P. Devine, Patrick L. Weaver
  • Patent number: 6488808
    Abstract: 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: Grant
    Filed: January 19, 2001
    Date of Patent: December 3, 2002
    Assignee: Huntsman Petrochemical Corporation
    Inventors: Duy T. Nguyen, Charles W. Hengst
  • Patent number: 6481021
    Abstract: 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: Grant
    Filed: August 6, 2001
    Date of Patent: November 19, 2002
    Inventor: Ronald C. Spell
  • Patent number: 6482292
    Abstract: 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: Grant
    Filed: June 6, 2002
    Date of Patent: November 19, 2002
    Assignee: Huntsman Petrochemical Corporation
    Inventors: Duy T. Nguyen, Charles W. Hengst
  • Patent number: 6479593
    Abstract: 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: Grant
    Filed: September 10, 2001
    Date of Patent: November 12, 2002
    Assignee: Huntsman Petrochemical Corporation
    Inventors: John H. Clements, Howard P. Klein, Edward T. Marquis, James R. Machac, Jr., Katty Darragas
  • Patent number: 6476237
    Abstract: 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: Grant
    Filed: February 26, 2002
    Date of Patent: November 5, 2002
    Assignee: Huntsman Petrochemical Corporation
    Inventors: James R. Machac, Jr., Ralph M. DiGuilio, John R. Sanderson, Ronald L. Savage
  • Patent number: 6475708
    Abstract: 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: Grant
    Filed: September 5, 2001
    Date of Patent: November 5, 2002
    Assignee: Huntsman Petrochemical Corporation
    Inventors: James R. Machac, Jr., Edward T. Marquis, Wheeler C. Crawford
  • Patent number: 6461068
    Abstract: 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: Grant
    Filed: June 7, 2001
    Date of Patent: October 8, 2002
    Inventor: Robert Holmes
  • Patent number: 6458860
    Abstract: 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: Grant
    Filed: January 7, 2002
    Date of Patent: October 1, 2002
    Assignee: Huntsman Petrochemical Corporation
    Inventors: Heiko H. Humbert, Robert Allison Grigsby, Jr.