Patents Assigned to Great Lakes Chemical
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Patent number: 8303851Abstract: Mixtures of additives in granular form comprising: one or more stabilizers for organic polymers; one or more organic or inorganic pigments; and/or one or more dyes; obtained by extrusion at a temperature capable of enabling the partial or total melting of the lowest-melting component. The above mixtures can be used in the stabilization and dyeing of organic polymers.Type: GrantFiled: January 18, 2008Date of Patent: November 6, 2012Assignee: Great Lakes Chemical (Europe) GmbHInventors: Carlo Neri, Corrado Callierotti
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Patent number: 7601862Abstract: A transesterification process for the preparation of tetrakis [3-(3,5-di-tert-butyl-4-hydroxy phenyl)propionyl oxymethyl] methane by the reaction of methyl-(3,5-di-tert-butyl-4-hydroxy phenyl)propionate ester with pentaerythritol wherein the reaction takes place in the presence of an ester exchange catalyst combination consisting of (a) at least one basic or neutral catalyst and (b) at least one metal compound capable of behaving as a Lewis acid and wherein the reaction is conducted through a first stage in which only basic or neutral catalyst is present in the reaction mixture followed by a second stage which commences with the addition of Lewis acid catalyst to the reaction mixture when the amount of di-substituted intermediate product contained within the reaction mixture is less than 20 area % analyzed by HPLC. The preferred basic catalysts are lithium hydroxide and lithium hydroxide monohydrate. The preferred Lewis acid catalyst is zinc octanoate.Type: GrantFiled: October 27, 2004Date of Patent: October 13, 2009Assignee: Great Lakes Chemical (Europe) GmbHInventor: Jonathan S. Hill
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Patent number: 7560048Abstract: Liquid stabilizing mixtures for organic polymers comprising: a) a liquid compound belonging to the group of sterically hindered phenols consisting of esters or mixtures of esters having formula (I); b) a solid compound belonging to the group of sterically hindered phenols having formula (II).Type: GrantFiled: July 6, 2005Date of Patent: July 14, 2009Assignee: Great Lakes Chemical (Europe) GmbHInventors: Fabio Broussard, Jose Roncalli
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Patent number: 7456324Abstract: The invention includes methods for preparing halohydrins and epoxides. A method of preparing halohydrins can include exposing (R1CHXCH2O—)2SO2 to R2COOH to produce R1CHXCH2COOR2 and hydrolyzing the R1CHXCH2COOR2 to produce the halohydrin R1CHXCH2OH. R1 and R2 can be the same or different single elements and/or organic groups and X can be a halogen. A method of preparing an epoxide can include combining a sulfuric acid containing solution with a halogen to produce a first mixture and exposing the first mixture to trifluoropropene to produce a second mixture. The second mixture can be combined with acetic acid to produce an acetyl halohydrin of trifluoropropene and the acetyl halohydrin can be hydrolyzed to form a halohydrin of trifluoropropene. The halohydrin can be converted to a trifluoropropyl epoxide.Type: GrantFiled: June 1, 2007Date of Patent: November 25, 2008Assignee: Great Lakes Chemical Corp.Inventors: P. Veeraraghavan Ramachandran, Kamlesh J. Padiya, Venkatram R. Mereddy
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Publication number: 20080194766Abstract: Mixtures of additives in granular form comprising: one or more stabilizers for organic polymers; one or more organic or inorganic pigments; and/or one or more dyes; obtained by extrusion at a temperature capable of enabling the partial or total melting of the lowest-melting component. The above mixtures can be used in the stabilization and dyeing of organic polymers.Type: ApplicationFiled: January 18, 2008Publication date: August 14, 2008Applicant: GREAT LAKES CHEMICAL (EUROPE) GMBHInventors: Carlo Neri, Corrado Callierotti
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Publication number: 20080154072Abstract: Methods and materials are provided for the production and purification of halogenated compounds and intermediates in the production of 1,1,1,3,3-pentafluoropropane. In a preferred embodiment, the process steps include: (1) reacting carbon tetrachloride with vinyl chloride to produce 1,1,1,3,3-pentachloropropane; (2) dehydrochlorinating the 1,1,1,3,3-pentachloropropane with a Lewis acid catalyst to produce 1,1,3,3-tetrachloropropene; (3) fluorinating the 1,1,3,3-tetrachloropropene to produce 1-chloro-3,3,3-trifluoropropene; (4) fluorinating the 1-chloro-3,3,3-trifluoropropene to produce a product mixture containing 1,1,1,3,3-pentafluoropropane; and (5) separating 1,1,1,3,3-pentafluoropro-pane from by-products.Type: ApplicationFiled: December 5, 2007Publication date: June 26, 2008Applicant: GREAT LAKES CHEMICAL CORPORATIONInventors: Stephen Owens, Andrew Jackson, Vimal Sharma, Mitchel Cohn, John Cheng-Ping Qian, Julia Ann Sacarias, Yuichi Iikubo
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Patent number: 7390839Abstract: Flame retardant flexible polyurethane foam compositions, methods of flame retarding flexible polyurethane foam compositions, articles made therefrom and flame retardants that comprise blends of (alkyl substituted) triaryl phosphate ester and phosphorus-containing flame retardant having at least about 5 wt. % phosphorus additives. The combined weight of the (alkyl substituted) triaryl phosphate ester and the phosphorus-containing flame retardant comprises about 5 to about 40% by weight of the flexible polyurethane foam compositions or reaction mixtures. The ratio of the (alkyl substituted) triaryl phosphate ester to the phosphorus-containing flame retardant is from about 95:5 to about 50:50 percent by weight.Type: GrantFiled: January 17, 2006Date of Patent: June 24, 2008Assignee: Great Lakes Chemical CorporationInventors: Matthew D Phillips, Richard S Rose, Stephen B Falloon
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Patent number: 7368089Abstract: Systems and methods for producing fluorocarbons are provided that include contacting a saturated halogenated fluorocarbon with hydrogen and catalyst to produce a saturated hydrofluorocarbon and an unsaturated fluorocarbon. Aspects of the present invention describe systems and methods for contacting saturated halogenated fluorocarbons such as CF3CClFCF3 and/or CF3CCl2CF3 with hydrogen and catalyst. Systems and methods of the present invention also describe contacting saturated halogenated fluorocarbons with catalysts having one or more of K, Zr, Na, Ni, Cu, Ni, Zn, Fe, Mn, Co, Ti, and Pd. Aspects of the present invention also describe contacting saturated halogenated fluorocarbons with hydrogen under pressure. Saturated hydroflourocarbons and unsaturated fluorocarbons produced in accordance with the systems and methods of the present invention can include one or more of CF3CFHCF3, CF3CH2CF3, CF3CHClCF3, CF3CF?CF2, CF3CH?CF2, and CF3CCl?CF2.Type: GrantFiled: February 28, 2005Date of Patent: May 6, 2008Assignee: Great Lakes Chemical CorporationInventors: Vicki E. Hedrick, Janet K. Boggs, Stephen M. Brandstadter, Mitchel Cohn
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Patent number: 7348461Abstract: Methods and materials are provided for the production of essentially isomerically pure perhalogenated and partially halogenated compounds. One embodiment of the present invention provides a process for the production of essentially isomerically pure CFC-216aa. Other embodiments include processes for the production of CFC-217ba and HFC-227ea. Particular embodiments of the present invention provide separation techniques for the separation of chlorofluorocarbons from HF, from other chlorofluorocarbons, and the separation of isomers of halogenated compounds. Still other embodiments of the present invention provide catalytic synthetic techniques that demonstrate extended catalyst lifetime. In other embodiments, the present invention provides catalytic techniques for the purification of isomeric mixtures.Type: GrantFiled: October 31, 2003Date of Patent: March 25, 2008Assignee: Great Lakes Chemical CorporationInventors: Yuichi Iikubo, Stephen Owens, Mitchel Cohn, Stephan M. Brandstadter, Vicki E. Hedrick, Janet K. Boggs, John Qian, Julie Sacarias
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Patent number: 7335805Abstract: Methods and materials are provided for the production of essentially isomerically pure perhalogenated and partially halogenated compounds. One embodiment of the present invention provides a process for the production of essentially isomerically pure CFC-216aa. Other embodiments include processes for the production of CFC-217ba and HFC-227ea. Particular embodiments of the present invention provide separation techniques for the separation of chlorofluorocarbons from HF, from other chlorofluorocarbons, and the separation of isomers of halogenated compounds. Still other embodiments of the present invention provide catalytic synthetic techniques that demonstrate extended catalyst lifetime. In other embodiments, the present invention provides catalytic techniques for the purification of isomeric mixtures.Type: GrantFiled: October 31, 2003Date of Patent: February 26, 2008Assignee: Great Lakes Chemical CorporationInventors: Yuichi Iikubo, Stephen Owens, Mitchel Cohn, Stephan M. Brandstadter, Vicki E. Hedrick, Janet K. Boggs, John Qian, Julie Sacarias
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Patent number: 7332635Abstract: Methods and materials are provided for the production of essentially isomerically pure perhalogenated and partially halogenated compounds. One embodiment of the present invention provides a process for the production of essentially isomerically pure CFC-216aa. Other embodiments include processes for the production of CFC-217ba and HFC-227ea. Particular embodiments of the present invention provide separation techniques for the separation of chlorofluorocarbons from HF, from other chlorofluorocarbons, and the separation of isomers of halogenated compounds. Still other embodiments of the present invention provide catalytic synthetic techniques that demonstrate extended catalyst lifetime. In other embodiments, the present invention provides catalytic techniques for the purification of isomeric mixtures.Type: GrantFiled: October 31, 2003Date of Patent: February 19, 2008Assignee: Great Lakes Chemical CorporationInventors: Yuichi Iikubo, Stephen Owens, Mitchel Cohn, Stephan M. Brandstadter, Vicki E. Hedrick, Janet K. Boggs, John Qian, Julie Sacarias
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Patent number: 7329786Abstract: Methods and materials are provided for the production of essentially isomerically pure perhalogenated and partially halogenated compounds. One embodiment of the present invention provides a process for the production of essentially isomerically pure CFC-216aa. Other embodiments include processes for the production of CFC-217ba and HFC-227ea. Particular embodiments of the present invention provide separation techniques for the separation of chlorofluorocarbons from HF, from other chlorofluorocarbons, and the separation of isomers of halogenated compounds. Still other embodiments of the present invention provide catalytic synthetic techniques that demonstrate extended catalyst lifetime. In other embodiments, the present invention provides catalytic techniques for the purification of isomeric mixtures.Type: GrantFiled: September 28, 2001Date of Patent: February 12, 2008Assignee: Great Lakes Chemical CorporationInventors: Yuichi Iikubo, Stephen Owens, Mitchel Cohn, Stephan M. Brandstadter, Vicki E. Hedrick, Janet K. Boggs, John Chengping Chien, Julie Sacarias, Vimal Sharma
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Patent number: 7307183Abstract: A method for preparing tetrabromobenzoate ester from a tetrabromophthalic anhydride including the steps of reacting the tetrabromophthalic anhydride with a catalyst and an alcohol at a temperature that favors partial esterification over complete esterification of the tetrabromophthalic anhydride to form a tetrabromophthalate half-ester reaction mixture; and feeding the half-ester reaction mixture to at least one reactor having and maintaining a temperature that favors decarboxylation over esterification to produce a tetrabromobenzoate ester-containing product. The temperature favoring partial esterification of the tetrabromophthalic anhydride is between about 70° C. and 130° C. The temperature favoring decarboxylation over esterification is between about 190° C. and 205° C. The tetrabromobenzoate ester-containing product comprises at least about 85% tetrabromobenzoate ester. The at least one reactor may include two or more reactors connected to one another in series.Type: GrantFiled: July 29, 2003Date of Patent: December 11, 2007Assignee: Great Lakes Chemical CorporationInventors: David W. Bartley, James D. Siebecker, Stephen B. Falloon
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Patent number: 7268261Abstract: Methods and materials are disclosed for the recovery of valuable hydrofluorocarbons and subsequent conversion to environmentally inert compounds. More specifically methods and materials are provided for recovering hydrofluorocarbons such as HFC-227, HFC-236, HFC-245, HFC-125, HFC-134, HFC-143, HFC-152, HFC-32, HFC-23 and their respective isomers. Processes are provided for converting hydrofluorocarbons such as these to fluoromonomer precursors such as CFC-217, CFC-216, CFC-215, CFC-115, CFC-114, CFC-113, CFC-112, HCFC-22, CFC-12, CFC-13 and their respective isomers. Materials, methods and schemes are provided for the conversion of these fluoromonomer precursors to fluoromonomers such as HFP, PFP, TFP, TFE, and VDF.Type: GrantFiled: August 31, 2005Date of Patent: September 11, 2007Assignee: Great Lakes Chemical CorporationInventors: Yuichi Iikubo, Vicki Hedrick, Stephen M. Brandstadter, Mitchel Cohn
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Patent number: 7262294Abstract: Photochromatic compounds belonging to the groups of chromenes and spiro-pyrans having general formula (I)Type: GrantFiled: April 19, 2001Date of Patent: August 28, 2007Assignee: Great Lakes Chemical (Europe) GmbHInventors: William Giroldini, Luciana Crisci, Vincenzo Malatesta
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Patent number: 7250539Abstract: Methods and materials are disclosed for the recovery of valuable hydrofluorocarbons and subsequent conversion to environmentally inert compounds. More specifically methods and materials are provided for recovering hydrofluorocarbons such as HFC-227, HFC-236, HFC-245, HFC-125, HFC-134, HFC-143, HFC-152, HFC-32, HFC-23 and their respective isomers. Processes are provided for converting hydrofluorocarbons such as these to fluoromonomer precursors such as CFC-217, CFC-216, CFC-215, CFC-115, CFC-114, CFC-113, CFC-112, HCFC-22, CFC-12, CFC-13 and their respective isomers. Materials, methods and schemes are provided for the conversion of these fluoromonomer precursors to fluoromonomers such as HFP, PFP, TFP, TFE, and VDF.Type: GrantFiled: December 30, 2002Date of Patent: July 31, 2007Assignee: Great Lakes Chemical Corp.Inventors: Yuichi Iikubo, Vicki Hedrick, Stephen M. Brandstadter, Mitchel Cohn
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Publication number: 20070161537Abstract: Production processes and systems are provided that include reacting halogenated compounds, dehalogenating compounds, reacting alcohols, reacting olefins and a saturated compounds, reacting reactants having at least two —CF3 groups with reactants having cyclic groups. RF-compositions such as RF-intermediates, RF-surfactants, RFmonomers, RF-monomer units, RF-metal complexes, RF-phosphate esters, RF-glycols, RF-urethanes, and/or RF-foam stabilizers. The RF portion can include at least two CF3 groups, at least three —CF3 groups, and/or at least two —CF3 groups and at least two —CH2— groups. Detergents, emulsifiers, paints, adhesives, inks, wetting agents, foamers, and defoamers including the RF-surfactant composition are provided. Acrylics, resins, and polymers are provided that include a RF-monomer unit. Compositions are provided that include a substrate having a RF-composition thereover.Type: ApplicationFiled: January 28, 2005Publication date: July 12, 2007Applicant: Great Lakes Chemical CorporationInventors: Janet Boggs, Stephan Brandstadter, John Chien, Vimal Sharma, Edwards Bradley, Victoria Hedrick, Andrew Jackson, Gregory Leman, Bruno Ameduri, George Kostov
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Patent number: 7223351Abstract: Fire extinguishing mixtures, systems and methods are provided. The fire extinguishing mixtures can include one or more extinguishing compounds, such as, for example, one or more of fluorocarbons, fluoroethers, and fluorocarbons. The fire extinguishing mixtures can also include one or more of nitrogen, argon, helium and carbon dioxide. In an exemplary aspect the extinguishing mixture includes an extinguishing compound, a diluent gas and water.Type: GrantFiled: April 17, 2003Date of Patent: May 29, 2007Assignee: Great Lakes Chemical CorporationInventors: Vimal Sharma, W. Douglas Register, James Harris, Thomas F. Rowland, Mark Cisneros
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Patent number: 7216722Abstract: Fire extinguishing mixtures, systems and methods are provided. The fire extinguishing mixtures can include one or more extinguishing compounds, such as, for example, one or more of fluorocarbons, fluoroethers, and fluorocarbons. The fire extinguishing mixtures can also include one or more of nitrogen, argon, helium and carbon dioxide. In an exemplary aspect the extinguishing mixture includes an extinguishing compound, a diluent gas and water.Type: GrantFiled: December 30, 2005Date of Patent: May 15, 2007Assignee: Great Lakes Chemical CorporationInventors: Vimal Sharma, W. Douglas Register, James Harris, Thomas F. Rowland, Mark Cisneros
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Patent number: 7151197Abstract: Methods and materials are provided for the production of essentially isomerically pure perhalogenated and partially halogenated compounds. One embodiment of the present invention provides a process for the production of essentially isomerically pure CFC-216aa. Other embodiments include processes for the production of CFC-217ba and HFC-227ea. Particular embodiments of the present invention provide separation techniques for the separation of chlorofluorocarbons from HF, from other chlorofluorocarbons, and the separation of isomers of halogenated compounds. Still other embodiments of the present invention provide catalytic synthetic techniques that demonstrate extended catalyst lifetime. In other embodiments, the present invention provides catalytic techniques for the purification of isomeric mixtures.Type: GrantFiled: October 31, 2003Date of Patent: December 19, 2006Assignee: Great Lakes Chemical CorporationInventors: Yuichi Iikubo, Stephen Owens, Mitchel Cohn, Stephan M. Brandstadter, Vicki E. Hedrick, Janet K. Boggs, John Qian, Julie Sacarias