Patents Assigned to ELIOKEM
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Patent number: 8424619Abstract: This invention is based upon the finding that certain chlorosulfonated ?-olefin copolymers can be beneficially utilized in drilling fluids that are utilized in drilling subterreanean wells. For instance, it has been unexpectedly found that certain chlorosulfonated ?-olefin copolymers can be beneficially used as total or partial replacements for organoclays in oil based drilling fluids.Type: GrantFiled: July 12, 2011Date of Patent: April 23, 2013Assignee: Eliokem S.A.S.Inventors: Cecile Mazard, Bertrand Guichard, Andrea Valenti
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Publication number: 20110266061Abstract: This invention is based upon the finding that certain chlorosulfonated ?-olefin copolymers can be beneficially utilized in drilling fluids that are utilized in drilling subterreanean wells. For instance, it has been unexpectedly found that certain chlorosulfonated ?-olefin copolymers can be beneficially used as total or partial replacements for organoclays in oil based drilling fluids.Type: ApplicationFiled: July 12, 2011Publication date: November 3, 2011Applicant: ELIOKEM S.A.S.Inventors: Cécile Mazard, Bertrand Guichard, Andrea Valenti
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Patent number: 7998905Abstract: This invention is based upon the finding that certain chlorosulfonated ?-olefin copolymers can be beneficially utilized in drilling fluids that are utilized in drilling subterreanean wells. For instance, it has been unexpectedly found that certain chlorosulfonated ?-olefin copolymers can be beneficially used as total or partial replacements for organoclays in oil based drilling fluids. The chlorosulfonated a-olefin copolymers that are useful in the practice of this invention are typically chlorosulfonated ethylene/octene copolymers or chlorosulfonated ethylene/butene copolymers. The utilization of chlorosulfonated ?-olefin copolymers in oil-based drilling fluids offers (1) long service life at high operating temperatures, (2) minimal formation damage, (3) improved filtration behavior, and (4) highly effective performance at low viscosifier levels.Type: GrantFiled: April 2, 2008Date of Patent: August 16, 2011Assignee: Eliokem S.A.S.Inventors: Cecile Mazard, Bertrand Guichard, Andrea Valenti
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Patent number: 7973104Abstract: The present invention relates to rubbery core/shell polymers that have improved heat and ultraviolet light resistance. These polymers can be blended with thermoplastics to make leathery compositions. The core/shell polymers of this invention have an inner core and an outer shell. The inner core is has repeat units which are derived from (a) butyl acrylate, (b) a member selected from the group consisting of methyl methacrylate, ethyl methacrylate, methyl acrylate, and ethyl acrylate, (c) optionally, an alkoxy ethyl acrylate or an alkoxy ethyl methacrylate, (d) acrylonitrile, (f) a cross-linking agent, and (g) a monomer containing reactive cure sites The outer core has repeat units which are derived from (d) acrylonitrile, (e) styrene, and (f) additional cross-linking agent. The outer core of these polymers is void of repeat units that are derived from methyl methacrylate.Type: GrantFiled: June 29, 2006Date of Patent: July 5, 2011Assignee: Eliokem S.A.S.Inventor: Hung Dang Ngoc
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Publication number: 20100292391Abstract: A rubbery polymer comprising: (a) butyl acrylate or a mixture of butyl acrylate and 2-ethylhexyl acrylate, (b) at least one member selected from the group consisting of methyl methacrylate, ethyl methacrylate, methyl acrylate, and ethyl acrylate, (c) acrylonitrile, (d) styrene, (e) a half ester maleate soap, and (f) a crosslinking agent selected from allyl methacrylate, and mixtures of allyl methacrylate with glycidyl methacrylate, trimethylolpropanetrimethyl acrylate, dicyclopentenyloxyethyl methacrylate and divinylbenzene.Type: ApplicationFiled: September 26, 2008Publication date: November 18, 2010Applicant: ELIOKEMInventors: Sophie Drillieres, Eric Medard, Bernard Nigen
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Patent number: 7449430Abstract: The present invention concerns a water-based drilling mud for utilization in the drilling of oil wells comprising an aqueous phase wherein the aqueous phase contains an oil soluble polymer in the form of a gel as a fluid loss reducer.Type: GrantFiled: June 23, 2006Date of Patent: November 11, 2008Assignee: Eliokem S.A.S.Inventors: Bertrand Guichard, Barry Wood, Patrick Vongphouthone
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Publication number: 20080248975Abstract: This invention is based upon the finding that certain chlorosulfonated ?-olefin copolymers can be beneficially utilized in drilling fluids that are utilized in drilling subterreanean wells. For instance, it has been unexpectedly found that certain chlorosulfonated ?-olefin copolymers can be beneficially used as total or partial replacements for organoclays in oil based drilling fluids. The chlorosulfonated ?-olefin copolymers that are useful in the practice of this invention are typically chlorosulfonated ethylene/octene copolymers or chlorosulfonated ethylene/butene copolymers. The chlorosulfonated ?-olefin copolymers will contain from 0.2 to 5 weight percent sulfur. The utilization of chlorosulfonated ?-olefin copolymers in oil-based drilling fluids offers (1) long service life at high operating temperatures, (2) minimal formation damage, (3) improved filtration behavior, and (4) highly effective performance at low viscosifier levels.Type: ApplicationFiled: April 2, 2008Publication date: October 9, 2008Applicant: ELIOKEM S.A.S.Inventors: Cecile Mazard, Bertrand Guichard, Andrea Valenti
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Patent number: 7417091Abstract: The present invention discloses a copolymer composition for use in or as a polymeric binder in an intumescent coating, said copolymer composition comprising a blend of a Newtonian copolymer and of a reticulated copolymer, wherein the Newtonian copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units, and wherein the reticulated copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units.Type: GrantFiled: September 8, 2006Date of Patent: August 26, 2008Assignee: Eliokem SASInventors: Serge Magnet, Sophie Duquesne, René Delobel, Charaf Jama
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Patent number: 7288588Abstract: The present invention discloses a copolymer composition for use in or as a polymeric binder in an intumescent coating, said copolymer composition comprising a blend of a Newtonian copolymer and of a reticulated copolymer, wherein the Newtonian copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units, and wherein the reticulated copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units. The present invention further reveals an intumescent coating which is comprised of a copolymer composition comprising a blend of a Newtonian copolymer, a reticulated copolymer, a film-forming substance, and a carbon forming substance, wherein the Newtonian copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units, and wherein the reticulated copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units.Type: GrantFiled: June 23, 2006Date of Patent: October 30, 2007Assignee: Eliokem S.A.S.Inventors: Serge Magnet, Sophie Duquesne, René Delobel, Charaf Jama
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Patent number: 7256159Abstract: The present invention concerns a water-based drilling mud for utilization in the drilling of oil wells comprising an aqueous phase wherein the aqueous phase contains an oil soluble polymer in the form of a gel as a fluid loss reducer. The subject invention further reveals a method of lubricating a drilling bit during the drilling of a well which comprises circulating a water-based drilling mud in the vicinity of the drilling bit wherein the water-based drilling mud is comprised of an aqueous phase, and wherein the aqueous phase contains an oil soluble polymer in the form of a gel as a fluid loss reducer.Type: GrantFiled: August 23, 2006Date of Patent: August 14, 2007Assignee: Eliokem S.A.S.Inventors: Bertrand Guichard, Barry Wood, Patrick Vongphouthone
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Publication number: 20070010624Abstract: The present invention discloses a copolymer composition for use in or as a polymeric binder in an intumescent coating, said copolymer composition comprising a blend of a Newtonian copolymer and of a reticulated copolymer, wherein the Newtonian copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units, and wherein the reticulated copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units.Type: ApplicationFiled: September 8, 2006Publication date: January 11, 2007Applicant: Eliokem S.A.SInventors: Serge Magnet, Sophie Duquesne, Rene Delobel, Charaf Jama
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Publication number: 20060278437Abstract: The present invention concerns a water-based drilling mud for utilization in the drilling of oil wells comprising an aqueous phase wherein the aqueous phase contains an oil soluble polymer in the form of a gel as a fluid loss reducer. The subject invention further reveals a method of lubricating a drilling bit during the drilling of a well which comprises circulating a water-based drilling mud in the vicinity of the drilling bit wherein the water-based drilling mud is comprised of an aqueous phase, and wherein the aqueous phase contains an oil soluble polymer in the form of a gel as a fluid loss reducer.Type: ApplicationFiled: August 23, 2006Publication date: December 14, 2006Applicant: Eliokem S.A.SInventors: Bertrand Guichard, Barry Wood, Patrick Vongphouthone
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Publication number: 20060247358Abstract: The present invention discloses a rubbery polymer having improved properties, which is comprised of an inner core and an outer shell, wherein the inner core is comprised of a polymeric structure having repeat units which are derived from (a) butyl acrylate, (b) a member selected from the group consisting of methyl methacrylate, ethyl methacrylate, methyl acrylate, and ethyl acrylate, (c) optionally, an alkoxy ethyl acrylate or an alkoxy ethyl methacrylate, (d) acrylonitrile, (f) a cross-linking agent, and (g) a monomer containing reactive cure sites, wherein the outer core is comprised of a polymeric structure having repeat units which are derived from (d) acrylonitrile, (e) styrene, and (f) additional cross-linking agent, wherein the outer core is void of repeat units which are derived from methyl methacrylate.Type: ApplicationFiled: June 29, 2006Publication date: November 2, 2006Applicant: Eliokem S.A.S.Inventor: Hung Ngoc
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Publication number: 20060241196Abstract: The present invention discloses a copolymer composition for use in or as a polymeric binder in an intumescent coating, said copolymer composition comprising a blend of a Newtonian copolymer and of a reticulated copolymer, wherein the Newtonian copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units, and wherein the reticulated copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units. The present invention further reveals an intumescent coating which is comprised of a copolymer composition comprising a blend of a Newtonian copolymer, a reticulated copolymer, a film-forming substance, and a carbon forming substance, wherein the Newtonian copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units, and wherein the reticulated copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units.Type: ApplicationFiled: June 23, 2006Publication date: October 26, 2006Applicant: Eliokem S.A.SInventors: Serge Magnet, Sophie Duquesne, Rene Delobel, Charaf Jama
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Patent number: 7105605Abstract: The present invention discloses a copolymer composition for use in or as a polymeric binder in an intumescent coating, said copolymer composition comprising a blend of a Newtonian copolymer and of a reticulated copolymer, wherein the Newtonian copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units, and wherein the reticulated copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units.Type: GrantFiled: December 19, 2003Date of Patent: September 12, 2006Assignee: Eliokem S.A.S.Inventors: Serge Magnet, Sophie Duquesne, René Delobel, Charaf Jama
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Patent number: 7101829Abstract: The present invention concerns a water-based drilling mud for utilization in the drilling of oil wells comprising an aqueous phase wherein the aqueous phase contains an oil soluble polymer in the form of a gel as fluid loss reducer. The subject invention further reveals a process for preparing an oil soluble polymer fluid loss control agent comprising the steps of dissolving at least one polymer in a hydrocarbon oil to form a clear solution or a gel, adding an emulsifier to the solution or the gel, and keeping the mixture under conditions of agitation until a clear creamy mixture is obtained.Type: GrantFiled: December 17, 2003Date of Patent: September 5, 2006Assignee: Eliokem S.A.S.Inventors: Bertrand Guichard, Barry Wood, Patrick Vongphouthone
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Patent number: 7094824Abstract: The present invention discloses a rubbery polymer having improved properties, which is comprised of repeat units which are comprised of (a) butyl acrylate, or optionally a mixture of butyl acrylate and 2-ethylhexyl acrylate containing up to about 40 percent 2-ethylhexyl acrylate, (b) at least one member selected from the group consisting of methyl methacrylate, ethyl methacrylate, methyl acrylate, and ethyl acrylate, (c) optionally, about 0% to about 40% of an alkoxy ethyl acrylate or an alkoxy ethyl methacrylate, (d) acrylonitrile, (e) styrene, and (f) a crosslinking agent; wherein about 1% to about 10% of a monomer containing reactive cure sites selected from the group consisting of hydroxyl groups, glycidyl groups, carboxylic acid groups, and unsaturated cure sites is incorporated into the rubbery polymer.Type: GrantFiled: June 3, 2005Date of Patent: August 22, 2006Assignee: Eliokem S.A.S.Inventor: Hung Dang Ngoc
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Patent number: 6984686Abstract: The present invention discloses a rubbery polymer having improved properties, which is comprised of repeat units which are comprised of (a) butyl acrylate, or optionally a mixture of butyl acrylate and 2-ethylhexyl acrylate containing up to about 40 percent 2-ethylhexyl acrylate, (b) at least one member selected from the group consisting of methyl methacrylate, ethyl methacrylate, methyl acrylate, and ethyl acrylate, (c) optionally, about 0% to about 40% of an alkoxy ethyl acrylate or an alkoxy ethyl methacrylate, (d) acrylonitrile, (e) styrene, and (f) a crosslinking agent; wherein about 1% to about 10% of a monomer containing reactive cure sites selected from the group consisting of hydroxyl groups, glycidyl groups, carboxylic acid groups, and unsaturated cure sites is incorporated into the rubbery polymer.Type: GrantFiled: December 18, 2003Date of Patent: January 10, 2006Assignee: Eliokem S.A.S.Inventor: Hung Dang Ngoc