Patents Represented by Attorney Steven D. Boyd
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Patent number: 8338353Abstract: The invention is directed toward improved aqueous hard surface cleaning compositions which include one or more polysulfonic acids The inclusion of one or more polysulfonic acids in a hard surface composition provides for improved removal of insoluble salt deposits resulting from hard water In an embodiment, the invention utilizes a foaming agent fragrance and a thickening agent.Type: GrantFiled: July 24, 2008Date of Patent: December 25, 2012Assignee: Arkema Inc.Inventors: Nicholas M. Martyak, Gary E. Stringer
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Patent number: 8329964Abstract: The invention relates to a gas-phase continuous method for preparing 2,3,3,3-tetrafluoro-1-propene, said method comprising the following steps: (i) hydrogenation of hexafluoropropylene to form 1,1,1,2,3,3-hexafluoropropane; (ii) dehydrofluorination of the 1,1,1,2,3,3-hexafluoropropane obtained in the previous step to 1,2,3,3,3-pentafluoropropene-1; (iii) hydrogenation of the 1,2,3,3,3-pentafluoropropene-1 obtained in the previous step to form 1,1,1,2,3-pentafluoropropane; and (iv) dehydrofluorination of the 1,1,1,2,3-pentafluoropropane obtained in the previous step to form 2,3,3,3-tetrafluoro-1-propene.Type: GrantFiled: March 27, 2009Date of Patent: December 11, 2012Assignee: Arkema FranceInventors: Michel Devic, Dominique Guillet, Emmanuel Guiraud, Laurent Wendlinger
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Patent number: 8314159Abstract: A blowing agent for thermosetting foams is disclosed. The blowing agent is predominately the trans isomer of the hydrochlorofluoroolefin (HCFO) HFCO-1233zd alone or in combination with a hydrofluoroolefin (HFO), hydrofluorocarbon (HFC), hydrochlorofluoroolefin (HCFO), a hydrocarbon. The blowing agent is effective as a blowing agent in the manufacture of thermosetting foams.Type: GrantFiled: March 28, 2008Date of Patent: November 20, 2012Assignee: Arkema Inc.Inventors: Benjamin Bin Chen, Maher Y. Elsheikh, Philippe Bonnet, Brett L. Van Horn, Joseph S. Costa
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Patent number: 8252198Abstract: The present invention relates to compositions containing hydrofluoroolefins and to the uses thereof as heat transfer fluids, blowing agents, solvents and aerosols. More particularly, the invention relates to compositions having from 5 to 65% by weight, preferably from 5 to 15% by weight, of 2,3,3,3-tetrafluoropropene, 5 to 70% by weight, preferably 40 to 60% by weight, of HFC-134a and 25 to 42% by weight of HFC-32.Type: GrantFiled: November 14, 2011Date of Patent: August 28, 2012Assignee: Arkema FranceInventor: Wissam Rached
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Patent number: 8252964Abstract: The subject of the invention is a process for the purification of 2,3,3,3-tetrafluoro-1-propene (HFO-1234yf). More particularly, it relates to a purification process in which 2,3,3,3-tetrafluoro-1-propene, comprising impurities based on halogen compounds, is brought into contact with an adsorbent, preferably molecular sieves and advantageously molecular sieves having a pore opening with an average diameter between 5 and 11 ?, preferably between 5 and 9 ?.Type: GrantFiled: June 8, 2009Date of Patent: August 28, 2012Assignee: Arkema FranceInventors: Michel Devic, Anne Pigamo, Laurent Wendlinger
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Patent number: 8246850Abstract: The present invention relates to compositions containing hydrofluoroolefins and to the uses thereof as heat transfer fluids, blowing agents, solvents and aerosols. More particularly, the invention relates to compositions having: 10 to 55% by weight, of 2,3,3,3-tetrafluoropropene, 5 to 50% by weight of HFC-152a and 30 to 55% by weight of HFC-32.Type: GrantFiled: November 14, 2011Date of Patent: August 21, 2012Assignee: Arkema FranceInventor: Wissam Rached
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Patent number: 8236069Abstract: The present invention relates to acrylic block polymers, either block copolymers or homopolymers, synthesized by a controlled free-radical process, and their use as low temperature flow modifiers in bio-derived fuel compositions. They are especially useful in modifying the low temperature flow behavior in bio-derived fuels. The acrylic polymers are especially useful as cold filter plugging control additives in bio-derived fuels.Type: GrantFiled: June 11, 2008Date of Patent: August 7, 2012Assignee: Arkema Inc.Inventors: Nicholas M. Martyak, Noah E. Macy, Michael D. Gernon, Scott C. Schmidt, Conor M. Dowling
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Patent number: 8198352Abstract: The present invention relates to high purity monoalkyltin compounds, more specifically to alkyltin compound compositions containing monoalkyltin as major compound, and minor quantities of di- and/or trialkyltin compounds. The present invention also relates to the preparation processes of such high purity monoalkyltin compounds, as well as to the uses of said monoalkyltin compounds as chlorine-containing polymer-stabilizers, glass coating chemicals and catalysts, as well as articles comprising at least one polymer matrix and a high purity monoalkyltin compound.Type: GrantFiled: May 14, 2009Date of Patent: June 12, 2012Assignee: Arkema FranceInventors: Berth Jan Deelman, Jeroen J. M. de Pater, Evert J. Saman, Isabelle Tartarin
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Patent number: 8197663Abstract: Methods for the electrolytic preparation of tin coated metals are disclosed. Organic polybasic acids, such as methanedisulfonic acid [CH2(SO3H)2], 1,3-acetonedisulfonic acid [CO(CH2SO3H)2], anhydrides, and their water soluble salts, and mixtures thereof may be used as the electrolyte in the plating process or as the flux in the reflow process. Acetone, gamma-butyrolactone, or a mixture thereof, may be applied to a tin plated surface, either before or after reflow. The methods of the invention produce plated material that is free of blue haze.Type: GrantFiled: December 8, 2006Date of Patent: June 12, 2012Assignee: Arkema Inc.Inventors: Nicholas M. Martyak, Gary E. Stringer, Gary S. Smith
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Patent number: 8142680Abstract: The invention relates to compositions that can be used as refrigerants. More specifically, the invention relates to compositions having a very low contribution to the greenhouse effect, which can be used in the cooling and production of conditioned air. The GWP of the inventive compositions is preferably at most equal to 150.Type: GrantFiled: December 17, 2007Date of Patent: March 27, 2012Assignee: Arkema FranceInventor: Wissam Rached
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Patent number: 8143454Abstract: The invention provides a technology for producing acrolein from glycerol while maintaining high reagent partial pressures, which leads to higher yield. The invention more particularly relates to a method for producing acrolein from glycerol that comprises the intermediate step of forming glycerol and acrolein cyclic acetals.Type: GrantFiled: December 16, 2008Date of Patent: March 27, 2012Assignee: Arkema FranceInventor: Jean-Luc Dubois
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Patent number: 8137419Abstract: The invention concerns a composition for use in particular as odorant of a gas fuel, more particularly of natural gas, comprising: 0.1 to 49.9 particles by weight of at least one alkyl sulphur (I) of formula: R1—S—R2, wherein R1 and R2, identical or different, represent: an alkyl radical comprising 1 to 4 carbon atom; or R1 and R2 together with the sulfur atom to which they are bound represent a saturated or unsaturated ring including 3 to 5 carbon atoms, optionally substituted by a C1-C4 alkyl or C1-C4 alkenyl; 50 to 99.8 parts by weight of at least two alkyl acrylates (II) the alkyl radicals of which comprise 1 to 12 carbon atoms, preferably 1 to 8: 0.001 parts by weight of at least compound (III) inhibiting polymerization of the alkyl acrylates (II).Type: GrantFiled: October 10, 2006Date of Patent: March 20, 2012Assignee: Arkema FranceInventor: Patrick Charles
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Patent number: 8101667Abstract: The present invention is directed to the pesticidal treatment of stored foodstuffs, chambers, structures and works of art, using a volatile sulphur compound of general formula: in which R represents an alkyl or alkenyl radical containing from 1 to 4 carbon atoms, n is equal to 0, 1 or 2, x is a number ranging from 0 to 4, and R? represents an alkyl or alkenyl radical containing from 1 to 4 carbon atoms or, only if n=x=0, a hydrogen atom. These sulphur compounds (in particular dimethyl disulphide) are applied by nebulization directly to the material to be treated.Type: GrantFiled: March 21, 2007Date of Patent: January 24, 2012Assignee: Arkema FranceInventors: Thierry Aubert, Jacques Auger
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Patent number: 8097302Abstract: Tin oxide having high mobility and a low electron concentration, and methods for producing layers of the tin oxide layers on a substrate by atmospheric pressure chemical vapor deposition (APCVD) are disclosed. The tin oxide may undoped polycrystalline n-type tin oxide or it may be doped polycrystalline p-type tin oxide. When the layer of tin oxide is formed on a crystalline substrate, substantially crystalline tin oxide is formed. Dopant precursors for producing doped p-type tin oxide are also disclosed.Type: GrantFiled: January 8, 2010Date of Patent: January 17, 2012Assignee: Arkema Inc.Inventors: Roman Y. Korotkov, David A. Russo, Thomas D. Culp, Gary S. Silverman, Pierre Beaujuge
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Patent number: 8076398Abstract: The present invention relates to a bituminous composition comprising at least one bitumen and at least one polycondensate capable of forming a supramolecular assembly comprising one or more associative group(s). The present invention also relates to the use of such bituminous composition for the preparation of asphalt mixtures useful for the coating of rolling surfaces, for the preparation of water-proofing coatings, and the for the preparation of adhesive formulations.Type: GrantFiled: August 3, 2010Date of Patent: December 13, 2011Assignee: Ceca S.A.Inventors: Juan Antonio Gonzalez Leon, Jean-Philippe Gillet, Gilles Barreto, Manuel Hidalgo, Vincent Luca
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Patent number: 8076519Abstract: The present invention relates to the masking of the odor of organic sulphides and more particularly that of alkyl sulphides or of dialkyl sulphides, especially dimethyl sulphide, and also of oxides thereof, and especially of dimethyl sulphoxide, by addition, to said organic sulphides, of at least one odor-masking agent comprising at least one monoester, at least one di- or triester, at least one alcohol, at least one ketone and, optionally, at least one terpene.Type: GrantFiled: July 27, 2010Date of Patent: December 13, 2011Assignee: Arkema FranceInventor: Paul-Guillaume Schmitt
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Patent number: 8075798Abstract: The present invention relates to compositions containing hydrofluoroolefins and to the uses thereof as heat transfer fluids, blowing agents, solvents and aerosols. More particularly, the invention relates to compositions having: 2 to 55% by weight, of 2,3,3,3-tetrafluoropropene, 2 to 55% by weight of HFC-152a and 30 to 55% by weight of HFC-32.Type: GrantFiled: May 14, 2009Date of Patent: December 13, 2011Assignee: Arkema FranceInventor: Wissam Rached
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Patent number: 8076521Abstract: In this invention we are disclosing a process for the synthesis of hydrochlorofluoro olefins (HCFO) and/or hydrofluoroolefins (HFO). The process is based on the following steps of liquid phase, noncatalytic fluorination of hydrochloropropenes to form hydrochlorofluoropropenes and/or hydrofluoropropenes, followed by gas phase, catalytic fluorination of the hydrochlorofluoropropenes to form hydrofluoropropenes.Type: GrantFiled: June 26, 2008Date of Patent: December 13, 2011Assignee: Arkema Inc.Inventors: Maher Y. Elsheikh, Philippe Bonnet, Benjamin Bin Chen
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Patent number: 8070977Abstract: The present invention relates to compositions containing hydrofluoroolefins and to the uses thereof as heat transfer fluids, blowing agents, solvents and aerosols. More particularly, the invention relates to compositions having: 5 to 65% by weight, preferably from 5 to 15% by weight, of 2,3,3,3-tetrafluoropropene, 5 to 70% by weight, preferably 40 to 60% by weight, of HFC-134a and 25 to 42% by weight of HFC-32.Type: GrantFiled: May 14, 2009Date of Patent: December 6, 2011Assignee: Arkema FranceInventor: Wissam Rached
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Patent number: 8063155Abstract: The invention relates to a sulphur donor curing agent comprising a combination of between 10 and 90 wt % of a mixture of polysulphides of poly(alkyl phenol) and between 90 and 10 wt. % a compound of the formula R?NHCONHR? were R? and R? are the same or different and are hydrogen oa an alkyl or aryl radical having 1 to 20 carbon atoms and methods of curing an EPDM-type rubber elastomer with the composition which presents no risk of the formation of nitrosamines.Type: GrantFiled: October 7, 2004Date of Patent: November 22, 2011Assignee: Arkema FranceInventor: Thierry Aubert