Patents Represented by Attorney Steven D. Boyd

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  • Acrolein Preparation Method
    Patent number: 7531699
    Abstract: The invention relates to a method for preparing acrolein from propylene, consisting of a first glycerol dehydration step preformed in the presence of a gas containing propylene and, more specifically, in the presence of the reaction gas originating from the propylene to acrolein oxidation step. The inventive method enables the use, in part, of renewable raw material, while increasing acrolein production.
    Type: Grant
    Filed: February 6, 2007
    Date of Patent: May 12, 2009
    Assignee: Arkema France
    Inventor: Jean-Luc Dubois
  • Trans-1, 2-dichloroethylene and hydrofluorocarbon or alkoxy perfluoroalkane compositions having elevated flash points
    Patent number: 7524806
    Abstract: A tran-1,2-dichloroethylene blend which comprises a combination of a major amount of tran-1,2-dichloroethylene and a minor amount of a hydrofluorocarbon or an alkoxy perfluoroalkane having an elevated flash point is disclosed. The combination exhibits a flash point significantly higher than trans-1,2-dichloroethylene alone while containing only a minor amount of the component exhibiting the high Global Warming Potential. The preferred hydrofluorocarbon is 1,1,1,2,2,3,4,5,5,5-decafluoropentane or 3,3,4,4,5,5,6,6,6-nonafluoro-1-hexene and the preferred alkoxy perfluoroalkane is 1-(methoxy)nonafluorobutane.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: April 28, 2009
    Assignee: Arkema Inc.
    Inventor: Jinhuang Wu
  • Stabilisation of trans-1,2-dichloroethylene
    Patent number: 7507702
    Abstract: The present invention relates to the stabilization of trans-1,2-dichloroethylene (TDCE) for the purpose of its use in the treatment of solid surfaces. The stabilized solution comprises at least one acid acceptor, at least one radical scavenger, at least one Lewis base and at least one compound possessing a buffering effect.
    Type: Grant
    Filed: October 11, 2004
    Date of Patent: March 24, 2009
    Assignee: Arkema France
    Inventors: Jean-Pierre Lallier, Jessica Bains
  • Hydrofluorocarbon-based composition and use thereof
    Patent number: 7504043
    Abstract: The invention relates to a hydrofluorocarbon (HFC)-based composition, to the use thereof in refrigeration and/or air conditioning and to a heat-transfer system containing same.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: March 17, 2009
    Assignee: Arkema France
    Inventors: Gerard Guilpain, Laurent Caron
  • Method for prevention of corrosion by naphthenic acids in refineries
    Patent number: 7491318
    Abstract: The invention relates to a method for prevention of corrosion by naphthenic acids in a refinery comprising the use of a compound of the formula HS—B—COOR, where B is a saturated bivalent 1-18 C hydrocarbon and R is H, alkaline or alkaline earth metal, ammonium, straight or branched alkyl, cycloalkyl, aryl, alkylaryl or arylalkyl with 1-18 C atoms.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: February 17, 2009
    Assignee: Arkema France
    Inventor: Francis Humblot
  • Semi-continuous photochemical method and device therefor
    Patent number: 7491299
    Abstract: In the photochemical synthetic process in semi-continuous mode according to the invention, a reactor comprising two zones is used, the radiating portion of the lamp(s) being totally immersed in a first zone which is completely filled with reaction medium and spills off via an overflow into a second zone whose volume is sufficient to contain the volume of reaction medium originating from the first zone and corresponding substantially to the volume of the reagent(s) gradually introduced.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: February 17, 2009
    Assignee: Arkema France
    Inventors: Mélanie Hebert, Jean Ollivier, Georges Fremy
  • High pressure catalyst activation method and catalyst produced thereby
    Patent number: 7485598
    Abstract: A process for the activation of a fluorination catalyst in which a catalyst precursor compound, supported or unsupported is first dried and thereafter activated by exposure to an activating agent at a pressure greater that about 100 psig and a temperature grater than about 100° C. The process is particularly suited to the activation of chromium (III) compounds, such as Cr2O3. The resulted dry, high-pressure activated catalyst was found to provide increase fluorination conversion, with higher selectivity of the desired product.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: February 3, 2009
    Assignee: Arkema Inc.
    Inventors: Maher Y. Elsheikh, Beatrice Boussand
  • Azeotrope-like composition of 1,1,1-trifluoro-3-chloropropene and methyl formate
    Patent number: 7479238
    Abstract: Provided are azeotrope-like compositions comprising 1,1,1-trifluoro-3-chloropropene and methyl formate and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, solvent, and aerosol propellants.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: January 20, 2009
    Assignee: Arkema Inc.
    Inventors: Benjamin B. Chen, Philippe Bonnet
  • Compositions containing fluorinated hydrocarbons and oxygenated solvents
    Patent number: 7473676
    Abstract: The present invention concerns the field of fluorinated hydrocarbons and relates to novel compositions containing fluorinated hydrocarbons and oxygenated solvents. More particularly, the compositions comprise a fluorinated base, diacetone alcohol (DAA), and DMSO and/or secondary butanol. These novel compositions can be used in particular in all solvent applications of HCFC 141b (hydrochlorofluorocarbon 141b), in particular in various operations for treating solid surfaces, such as the cleaning, degreasing, defluxing or drying of solid surfaces.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: January 6, 2009
    Assignee: Arkema France
    Inventors: Benoit Artuphel, Jean-Pierre Lallier, Emmanuel Rastelletti
  • Zinc lanthanide sulfonic acid electrolytes
    Patent number: 7452486
    Abstract: Disclosed are aqueous solutions for use in high energy, highly efficient electrical energy storage devices. The solutions contain (a) a high purity sulfonic acid with a low concentration of low valent sulfur compounds or higher valent sulfur compounds susceptible to reduction, (b) a metal or metals in an oxidized state that are capable of being reduced to the zero valent oxidation state, (c) a metal that is in an oxidized state that is incapable of being reduced to its metallic state and (d) optionally, a buffering agent and/or conductivity salts.
    Type: Grant
    Filed: May 13, 2004
    Date of Patent: November 18, 2008
    Assignee: Arkema Inc.
    Inventors: Nicholas Michael Martyak, Martin Nosowitz
  • Foam premixes having improved processability
    Patent number: 7449438
    Abstract: A method for improving the processability of foam premixes containing HFC and/or pentane-based blowing agents in polyols is provided, which method comprises adding trans-1,2-dichloroethylene to said premix in an amount effective to enhance said processability.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: November 11, 2008
    Assignee: Arkema Inc.
    Inventors: Jinhuang Wu, Laurent S. J. Caron
  • Azeotrope-like composition of 1,1,1-trifluoro-3-chloropropene and trans-1,2-dichloroethylene
    Patent number: 7442321
    Abstract: Provided are azeotrope-like compositions comprising 1,1,1-trifluoro-3-chloropropene (HCFO-1233zd) and trans-1,2-dichloroethylene (TDCE) and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, solvent, and aerosol propellants.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: October 28, 2008
    Assignee: Arkema Inc.
    Inventors: Benjamin Bin Chen, Philippe Bonnet, Brett Van Horn, Maher Y. Elsheikh
  • Azeotrope-like composition of 1,1,1-trifluoro-3-chloropropene and methyl acetate
    Patent number: 7438826
    Abstract: Provided are azeotrope-like compositions comprising 1,1,1-trifluoro-3-chloropropene (HCFO-1233zd) and methyl acetate and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, solvent, and aerosol propellants.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: October 21, 2008
    Assignee: Arkema Inc.
    Inventors: Benjamin Bin Chen, Philippe Bonnet
  • Azeotrope-like composition of 1,1,1-trifluoro-3-chloropropene and dimethoxymethane
    Patent number: 7438825
    Abstract: Provided are azeotrope-like compositions comprising 1,1,1-trifluoro-3-chloropropene (HCFO-1233zd) and dimethoxymethane and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, solvent, and aerosol propellants.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: October 21, 2008
    Assignee: Arkema Inc.
    Inventors: Benjamin Bin Chen, Philippe Bonnet
  • Method of preparing dimethylcetene and, subsequently, polydimethylcetene from isobutyric anhydride
    Patent number: 7435856
    Abstract: The present invention relates to a process for the preparation of dimethylketene (DMK) and then of polydimethylketene (PDMK) by polymerization of DMK. More specifically, the DMK is obtained by pyrolysis by isobutyric anhydride (IBAN), the latter decomposing under the effect of heat (pyrolysis) to give isobutyric acid (IBA) and DMK. One mole of pyrolyzed IBAN gives one mole of IBA and one mole of DMK.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: October 14, 2008
    Assignee: Arkema France
    Inventors: Reinhard Linemann, Serge Hub, Guillaume Le, Georges Martino-Gauchi
  • Liquid detergent formulation with hydrogen peroxide
    Patent number: 7431775
    Abstract: A stabilized basic aqueous liquid detergent composition is disclosed. The composition comprises hydrogen peroxide, a hydrogen peroxide stabilizer or a mixture of hydrogen peroxide stabilizers, an anionic surfactant or mixture of anionic surfactants, a non-ionic surfactant or mixture of anionic surfactants, and a builder or a mixture of builders. The composition maintains a homogeneous single phase, maintains active oxygen level, and gives a high level of cleaning performance.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: October 7, 2008
    Assignee: Arkema Inc.
    Inventors: Xue Wang, Keith R. Genco, Donn Rubingh
  • Process for dehydrating glycerol to acrolein
    Patent number: 7396962
    Abstract: The present invention relates to a process for manufacturing acrolein by dehydration of glycerol in the presence of molecular oxygen. The reaction is performed in the liquid phase or in the gas phase in the presence of a solid catalyst. The addition of oxygen makes it possible to obtain good glycerol conversion by inhibiting the deactivation of the catalyst and the formation of by-products.
    Type: Grant
    Filed: January 6, 2006
    Date of Patent: July 8, 2008
    Assignee: Arkema France
    Inventors: Jean-Luc Dubois, Christophe Duquenne, Wolfgang Holderich
  • Stabilization of alkaline hydrogen peroxide
    Patent number: 7341636
    Abstract: A stabilized basic aqueous hydrogen peroxide composition is disclosed. The composition contains about 0.3 wt % to about 15 wt % of hydrogen peroxide; water; and a stabilizer system that contains about 10 ppm to about 1% of a stannate stabilizer; 10 ppm to about 1% of a phosphonic acid chelating agent or a mixture of phosphonic acid chelating agents; and 10 ppm to about 1% of an aromatic chelating agent or a mixture of aromatic chelating agents. The composition comprises less than 10 ppm pyrophosphate, preferably no pyrophosphate; and has a pH greater than 7.0, preferably about 8.0 to about 10.5.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: March 11, 2008
    Assignee: Arkema Inc.
    Inventors: Xue Wang, Keith Robert Genco
  • Catalytic method of producing alkyl mercaptans by adding hydrogen sulphide to an olefin
    Patent number: 7339083
    Abstract: The process for preparing a mercaptan from an olefin and hydrogen sulphide is carried out in the presence of hydrogen and a catalyst composition comprising a strong acid, such as a heteropolyacid, and at least one metal belonging to group VIII of the Periodic Table.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: March 4, 2008
    Assignee: Arkema France
    Inventors: Georges Fremy, Nadine Essayem, Michel Lacroix, Elodie Zausa
  • Continuous method for preparing ethyl lactate
    Patent number: 7297809
    Abstract: The invention concerns a continuous method for preparing ethyl lactate by esterifying lactic acid with ethanol, in the presence of a catalyst which comprises reacting said lactic acid with ethanol in an initial ethanol/lactic acid mol ratio not less than 2.5, in the presence of a catalyst, at a reflux of the reaction medium of about 100° C. under absolute pressure ranging between 1.5 to 3 bars.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: November 20, 2007
    Assignee: Arkema France
    Inventors: Georges Martino-Gauchi, Rémy Teissier