Patents by Inventor Larry W. Arndt
Larry W. Arndt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240182388Abstract: Processes for conversion of propylene polyol feed into useful petrochemical products, including olefin monomers, are described. Such processes comprise: adding a feed stream comprising one or more propylene polyols to a dehydration cleavage reaction zone in the presence of a dehydration cleavage catalyst and reacting at a pressure and temperature sufficient to form a product stream comprising propionaldehyde, a dioxolane component, and a dioxane component; and adding the product stream and hydrogen to a dehydration reaction zone in the presence of a hydrogenation catalyst to form and reacting at a pressure and temperature sufficient to form a second product stream comprising a propanol component. The second product can be added to a dehydration reaction zone in the presence of a dehydration catalyst and reacted at a pressure and temperature sufficient to form a third product stream comprising propylene.Type: ApplicationFiled: December 1, 2023Publication date: June 6, 2024Applicant: Basell Poliolefine Italia S.r.l.Inventors: Sandor Nagy, David S. Mannel, Natalia Nagy, Amy D. Rose, George R. Horvat, Larry W. Arndt, David W. Leyshon, Xueyong Yang, Barbara Kimmich
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Publication number: 20240182389Abstract: Processes for conversion of propylene polyol feed into useful petrochemical products, including olefin monomers, are described. Such processes comprise: adding a feed stream comprising one or more propylene polyols, hydrogen, and optionally water, to a catalytic conversion reaction zone in the presence of a first solid acid catalyst component and a hydrogenation catalyst component and reacting at a pressure and temperature sufficient to form a first product stream comprising a propanol component. The first product stream can be added to a dehydration reaction zone in the presence of a dehydration catalyst and reacted at a pressure and temperature sufficient to form a second product stream comprising propylene.Type: ApplicationFiled: December 1, 2023Publication date: June 6, 2024Applicant: Basell Poliolefine Italia S.r.l.Inventors: Sandor Nagy, David S. Mannel, Natalia Nagy, Amy D. Rose, George R. Horvat, Larry W. Arndt, David W. Leyshon, Xueyong Yang, Barbara Kimmich
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Patent number: 10988564Abstract: A method of producing dimethoxymethane oligomers (DMMn), the method comprising: reacting a formaldehyde source and dimethoxymethane monomer (DMM1) in the presence of an acidic catalyst to produce a reaction effluent comprising DMMn and unreacted DMM1; and separating, from the reaction effluent, DMM1-2 including unreacted DMM1 and DMMn having a chain length n equal to 2 (DMM2), dimethoxymethane oligomers having a chain length n in the range of from 2-5 (DMM2-5), dimethoxymethane oligomers having a chain length n of ?5 (DMM5+), or a combination thereof, wherein the separating comprises distillation in the presence of at least one alcohol, a distillate fuel, or both.Type: GrantFiled: March 8, 2019Date of Patent: April 27, 2021Assignee: Lyondell Chemical Technology, L.P.Inventors: James N. Waguespack, David S. Mannel, Larry W. Arndt, Ha H. Nguyen, Barbara Kimmich
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Patent number: 10851320Abstract: A composition comprising a distillate fuel, an oligomer portion comprising at least one dimethoxymethane oligomer, and a stabilizer comprising one or more alcohols. A composition comprising a distillate fuel, and an oligomer portion comprising at least one dimethoxymethane oligomer, DMMn, wherein n is less than 3 and/or greater than 4. A composition comprising a distillate fuel, and less than 10 volume percent of an oligomer portion, wherein the oligomer portion comprises at least one dimethoxymethane oligomer. A method comprising separating, from a mixture of DMMn oligomers, one or more DMMn fractions comprising oligomers of a desired chain length n, and combining a desired amount of one or more of the separated DMMn fractions with a distillate fuel to provide a fuel composition. A composition comprising a distillate fuel that includes renewable distillate fuel, DMMn and/or alcohol.Type: GrantFiled: October 24, 2018Date of Patent: December 1, 2020Assignee: Lyondell Chemical Technology, L.P.Inventors: James N. Waguespack, Larry W. Arndt, David S. Mannel, Ha H. Nguyen, Barbara Kimmich
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Publication number: 20190276579Abstract: A method of producing dimethoxymethane oligomers (DMMn), the method comprising: reacting a formaldehyde source and dimethoxymethane monomer (DMM1) in the presence of an acidic catalyst to produce a reaction effluent comprising DMMn and unreacted DMM1; and separating, from the reaction effluent, DMM1-2 including unreacted DMM1 and DMMn having a chain length n equal to 2 (DMM2), dimethoxymethane oligomers having a chain length n in the range of from 2-5 (DMM2-5), dimethoxymethane oligomers having a chain length n of ?5 (DMM5+), or a combination thereof, wherein the separating comprises distillation in the presence of at least one alcohol, a distillate fuel, or both.Type: ApplicationFiled: March 8, 2019Publication date: September 12, 2019Applicant: Lyondell Chemical Technology, L.P.Inventors: James N. Waguespack, David S. Mannel, Larry W. Arndt, Ha H. Nguyen, Barbara Kimmich
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Publication number: 20190119590Abstract: A composition comprising a distillate fuel, an oligomer portion comprising at least one dimethoxymethane oligomer, and a stabilizer comprising one or more alcohols. A composition comprising a distillate fuel, and an oligomer portion comprising at least one dimethoxymethane oligomer, DMMn, wherein n is less than 3 and/or greater than 4. A composition comprising a distillate fuel, and less than 10 volume percent of an oligomer portion, wherein the oligomer portion comprises at least one dimethoxymethane oligomer. A method comprising separating, from a mixture of DMMn oligomers, one or more DMMn fractions comprising oligomers of a desired chain length n, and combining a desired amount of one or more of the separated DMMn fractions with a distillate fuel to provide a fuel composition. A composition comprising a distillate fuel that includes renewable distillate fuel, DMMn and/or alcohol.Type: ApplicationFiled: October 24, 2018Publication date: April 25, 2019Applicant: Lyondell Chemical Technology, L.P.Inventors: James N. Waguespack, Larry W. Arndt, David S. Mannel, Ha H. Nguyen, Barbara Kimmich
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Patent number: 7144850Abstract: A drycleaning method is disclosed. In the method, a composition that comprises at least about 85 wt. % dipropylene glycol dimethyl ether (DMM) is used. The limited solubility of water in DMM is ideal for drycleaning. The method provides good stain removal and fast drying while avoiding excessive fabric shrinkage or soil redeposition.Type: GrantFiled: August 25, 2004Date of Patent: December 5, 2006Assignee: Lyondell Chemical Technology, L.P.Inventors: Paul E. Galick, David R. Kinney, Ellen S. Lenz, Larry W. Arndt
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Patent number: 7087094Abstract: A drycleaning method is disclosed. In the method, a composition that comprises dipropylene glycol n-propyl ether (DPnP) and is essentially free of siloxanes or polysulfonic acids is used. The composition contains at least about 80 wt. % DPnP and up to about 15 wt. % of water. The method enables superior stain removal while avoiding excessive fabric shrinkage or soil redeposition.Type: GrantFiled: September 2, 2003Date of Patent: August 8, 2006Assignee: Lyondell Chemical Technology, L.P.Inventors: Paul E. Galick, Larry W. Arndt, Shao-Hua Guo, Ellen S. Lenz, David R. Kinney
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Patent number: 5786506Abstract: A process is described for the separation and recovery of isocyanate monomers from isocyanate concentrates which leaves a residue which is liquid and burnable. The process for the separation and recovery of isocyanate monomers from isocyanate concentrates formed in the production of isocyanates and comprising a volatile isocyanate monomer and by-products comprises the steps of:(A) preparing a mixture comprising(A-1) the isocyanate concentrate; and(A-2) an oil solution comprising;(A-2-a) a major amount of hydrocarbon oil, and(A-2-b) a minor amount of at least one ashless dispersant; and(B) heating the mixture to an elevated temperature at reduced pressure whereby isocyanate monomer is distilled and recovered leaving a liquid residue.Type: GrantFiled: December 4, 1992Date of Patent: July 28, 1998Assignees: The Lubrizol Corporation, Miles Inc.Inventors: Stephen A. Dibiase, Larry W. Arndt, Gregory M. Stansfield, Louis A. Renbaum
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Patent number: 5349082Abstract: Disclosed herein is a process for recovering toluene diisocyanate (TDI) from a TDI residue solution, comprising mixing the residue solution with a polyisocyanate consisting essentially of methylenediphenyl diisocyanate (MDI) or MDI in combination with its higher ring oligomer, followed by heating the resulting mixture over a temperature range of 130.degree. to 250.degree. C. for a period of time sufficient to remove free TDI and thermally splittable TDI generated from equilibration of the TDI residue with MDI or the MDI oligomer by either a batch or continuous process.Type: GrantFiled: March 19, 1993Date of Patent: September 20, 1994Assignee: Miles Inc.Inventors: William E. Slack, Kenneth L. Dunlap, Larry W. Arndt, Louis Renbaum
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Patent number: 5043470Abstract: A process is described for the separation and recovery of isocyanate monomers from isocyanate concentrates which leaves a residue which is liquid and burnable. The process for the separation and recovery of isocyanate monomers from isocyanate concentrates formed in the production of isocyanates and comprising a volatile isocyanate monomer and by-products comprises the steps of:(A) preparing a mixture comprising(A-1) the isocyanate concentrate; and(A-2) an oil solution comprising;(A-2-a) a major amount of hydrocarbon oil, and(A-2-b) a minor amount of at least one carboxylic ester obtained by reacting(A-2-b-1) at least one substituted succinic acylating agent with(A-2-b-2) at least one alcohol of the general formulaR.sub.3 (OH).sub.M (I)wherein R.sub.Type: GrantFiled: June 1, 1990Date of Patent: August 27, 1991Assignees: The Lubrizol Corporation, Mobay CorporationInventors: Stephen A. DiBiase, Larry W. Arndt, Gregory M. Stansfield, Louis A. Renbaun