Patents by Inventor Robert Jay Wittenbrink
Robert Jay Wittenbrink 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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Patent number: 8211968Abstract: The present invention relates to plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer.Type: GrantFiled: January 25, 2010Date of Patent: July 3, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: Henry Wu-Hsiang Yang, Wen Li, Bruce R. Lundmark, Chon-Yie Lin, Chia Yung Cheng, Bryan R. Chapman, Petra Eiselt, Galina Ourieva, Manika Varma-Nair, James N. Coffey, Sandra Denise Schregenberger, David J. Lohse, Norman Yang, Jeffrey Theodore Zudock, Robert Jay Wittenbrink
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Publication number: 20100152346Abstract: The present invention relates to plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer.Type: ApplicationFiled: January 25, 2010Publication date: June 17, 2010Inventors: Henry Wu-Hsiang Yang, Wen Li, Bruce R. Lundmark, Chon-Yie Lin, Chia Yung Cheng, Bryan R. Chapman, Petra Eiselt, Galina Ourieva, Manika Varma-Nair, James N. Coffey, Sandra Denise Schregenberger, David J. Lohse, Norman Yang, Jeffrey Theodore Zudock, Robert Jay Wittenbrink
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Patent number: 7652093Abstract: The present invention relates to plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer.Type: GrantFiled: April 19, 2006Date of Patent: January 26, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Henry Wu-Hsiang Yang, Wen Li, Bruce R. Lundmark, Chon-Yie Lin, Chia Yung Cheng, Bryan R. Chapman, Petra Eiselt, Galina Ourieva, Manika Varma-Nair, James N. Coffey, Sandra Denise Schregenberger, David J. Lohse, Norman Yang, Jeffrey Theodore Zudock, Robert Jay Wittenbrink
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Patent number: 7619026Abstract: The present invention relates to plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer.Type: GrantFiled: August 12, 2003Date of Patent: November 17, 2009Assignee: ExxonMobil Chemical Patents Inc.Inventors: Henry Wu-Hsiang Yang, Wen Li, Bruce R. Lundmark, Chon-Yie Lin, Chia Yung Cheng, Bryan R. Chapman, Petra Eiselt, Galina Ourieva, Manika Varma-Nair, James N. Coffey, Sandra Denise Schregenberger, David J. Lohse, Norman Yang, Jeffrey Theodore Zudock, Robert Jay Wittenbrink
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Patent number: 7427506Abstract: A high throughput method to determine an amount of a comonomer in a copolymer sample of a copolymer system comprises the steps of providing a plurality of copolymer samples; creating an array of the copolymer samples; measuring a sample complex modulus of each of the copolymer samples at a comparison phase angle; and determining the amount of a comonomer in the copolymer sample by comparing the sample complex modulus to a calibration curve, wherein the calibration curve relates a concentration of the comonomer in the copolymer sample to a complex moduli of the copolymer sample determined at the comparison phase angle. A method of determining the amount of a comonomer in both a single copolymer sample, and in a high throughput scheme using the crossover modulus is also disclosed.Type: GrantFiled: April 13, 2004Date of Patent: September 23, 2008Assignee: ExxonMobil Chemical Patents Inc.Inventors: Cesar A. Garcia-Franco, David J. Lohse, Bruce A. Harrington, Robert Jay Wittenbrink
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Patent number: 6860909Abstract: A blend useful as a diesel fuel, as well as a method for its production, comprising a high quality Fischer-Tropsch derived distillate boiling in the range of a diesel fuel blended with a cracked stock boiling in the range of a diesel fuel wherein the final blend contains 10-35 wt. % aromatics and 1-20 wt. % polyaromatics and produces low regulated emissions levels.Type: GrantFiled: June 13, 2003Date of Patent: March 1, 2005Assignee: ExxonMobil Research and Engineering CompanyInventors: Paul Joseph Berlowitz, Robert Jay Wittenbrink, Bruce Randall Cook
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Patent number: 6846848Abstract: A hydrocarbon wax product from a hydrocarbon synthesis slurry comprising liquid synthesis product and catalyst particles is purified by introducing a portion of hydrocarbon synthesis slurry from a hydrocarbon synthesis zone to a treatment zone in which a treatment gas contacts the hydrocarbon synthesis slurry. Hydrogen or a hydrogen-containing gas is useful as the treatment gas. The gas treatment removes impurities from the hydrocarbon wax portion of the hydrocarbon synthesis slurry. Purified wax product is separated and removed in situ via wax withdrawal means. This avoids or minimizes the need for further treating the wax product.Type: GrantFiled: August 23, 2002Date of Patent: January 25, 2005Assignee: ExxonMobil Research and Engineering CompanyInventors: Robert Jay Wittenbrink, Loren Leon Ansell, Daniel Francis Ryan, Louis Francis Burns
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Patent number: 6833064Abstract: A wide cut Fischer-Tropsch derived diesel fuel is produced wherein the distillate boils in a wider range than a conventional diesel fuel while providing favorable low temperature properties and environmentally beneficial effects. In particular, the fuel comprises a hydrocarbon distillate derived from the Fischer-Tropsch process having T90 greater than 640° F. (338° C.) but less than 1000° F. (538° C.) and a cold filter plugging point less than or equal to +5° C.Type: GrantFiled: August 3, 2001Date of Patent: December 21, 2004Assignee: ExxonMobil Research and Engineering CompanyInventors: Paul Joseph Berlowitz, Robert Jay Wittenbrink, Daniel Francis Ryan, William Berlin Genetti, Jack Wayne Johnson
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Patent number: 6787022Abstract: A process for the production of a winter diesel fuel from wax containing hydrocarbons produced by the Fischer-Tropsch hydrocarbon synthesis process. A 300° F.+ Fischer-Tropsch fraction is upgraded first by hydroisomerization followed by catalytic dewaxing resulting in a diesel fuel suitable for use as a winter diesel fuel having excellent cold flow properties and reduced emissions.Type: GrantFiled: May 2, 2000Date of Patent: September 7, 2004Assignee: ExxonMobil Research and Engineering CompanyInventors: Paul Joseph Berlowitz, Daniel Francis Ryan, Robert Jay Wittenbrink, W. Berlin Genetti, Jack Wayne Johnson
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Publication number: 20040144689Abstract: A blend useful as a diesel fuel, as well as a method for its production, comprising a high quality Fischer-Tropsch derived distillate boiling in the range of a diesel fuel blended with a cracked stock boiling in the range of a diesel fuel wherein the final blend contains 10-35 wt. % aromatics and 1-20 wt. % polyaromatics and produces low regulated emissions levels.Type: ApplicationFiled: June 13, 2003Publication date: July 29, 2004Inventors: Paul Joseph Berlowitz, Robert Jay Wittenbrink, Bruce Randall Cook
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Publication number: 20040106723Abstract: The present invention relates to plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer.Type: ApplicationFiled: August 12, 2003Publication date: June 3, 2004Inventors: Henry Wu-Hsiang Yang, Wen Li, Bruce R. Lundmark, Chon-Yie Lin, Chia Yung Cheng, Bryan R. Chapman, Petra Eiselt, Galina Ourieva, Manika Varma-Nair, James N. Coffey, Sandra Denise Schregenberger, David J. Lohse, Norman Yang, Jeffrey Theodore Zudock, Robert Jay Wittenbrink
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Patent number: 6717024Abstract: A slurry Fischer-Tropsch hydrocarbon synthesis process for synthesizing liquid hydrocarbons from synthesis gas in a synthesis reactor also hydroisomerizes the synthesized hydrocarbon liquid, which comprises the slurry liquid, in one or more lift reactors immersed in the slurry body in the synthesis reactor. A monolithic catalyst is preferably used for the hydroisomerization, and slurry circulation up through the lift reactors from the surrounding slurry body, is achieved at least in part by the lift action of the hydroisomerization treat gas. Preferably, catalyst particles are also removed before the slurry contacts the catalyst. Hydroisomerization occurs while the synthesis reactor is producing hydrocarbons, without interfering with the synthesis reaction. A gas bubble reducing downcomer may be used to produce and feed the gas bubble reduced slurry into the lift reactor, thereby providing a hydraulic head assist in the slurry circulation up through and out of the lift reactor.Type: GrantFiled: November 6, 2001Date of Patent: April 6, 2004Assignee: ExxonMobil Research and Engineering CompanyInventors: Robert Jay Wittenbrink, Charles John Mart, Janet Renee Clark, Jennifer Schaefer Feeley
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Patent number: 6677388Abstract: Wax in water emulsions prepared from Fischer-Tropsch derived waxes, Fischer-Tropsch process water, and two alkyl ethoxylated phenol nonionic surfactants having different hydrophilic-lipophilic balances provide high performance pipeline transport of waxes with reduced pipeline fouling.Type: GrantFiled: July 20, 2001Date of Patent: January 13, 2004Assignee: ExxonMobil Research and Engineering CompanyInventors: Tapan Chakrabarty, Robert Jay Wittenbrink, Paul Joseph Berlowitz, Loren Leon Ansell
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Patent number: 6663767Abstract: A blended fuel, useful as a diesel fuel, wherein the fuel blend contains an undercut conventional diesel fuel, blended with a Fischer-Tropsch derived diesel fuel, such that the blend demonstrates better than expected emissions and a reduced sulfur content. In particular, the blend is an asymmetric diesel fuel blend comprising a Fischer-Tropsch derived hydrocarbon distillate having a T95 of at least 600° F., blended with a petroleum derived hydrocarbon distillate having an initial boiling point and a T95 no greater than 640° F.Type: GrantFiled: May 2, 2000Date of Patent: December 16, 2003Assignee: ExxonMobil Research and Engineering CompanyInventors: Paul Joseph Berlowitz, Daniel Francis Ryan, Robert Jay Wittenbrink, Jack Wayne Johnson, John Richard Bateman
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Patent number: 6649803Abstract: A slurry Fischer-Tropsch hydrocarbon synthesis process for synthesizing liquid hydrocarbons from synthesis gas in a synthesis reactor also hydroisomerizes the synthesized hydrocarbons in one or more external lift reactor hydroisomerizing loops outside of the reactor, but which are a part of the reactor. A monolithic catalyst is used for the hydroisomerization and slurry circulation between the synthesis reactor and one or more loops is achieved, at least in part, by the lift action of a hydrogen treat gas injected into each loop.Type: GrantFiled: November 6, 2001Date of Patent: November 18, 2003Assignee: ExxonMobil Research and Engineering CompanyInventors: Charles John Mart, Robert Jay Wittenbrink, Janet Renee Clark, Jennifer Schaefer Feeley
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Publication number: 20030163946Abstract: Emulsions of a hydrocarbon and water in which the hydrocarbon preferably is a Fischer-Tropsch derived hydrocarbon fuel and in which emulsion a major portion of the hydrocarbon has particle sizes of 1 micron or less produce reduced particulate matter emissions upon combustion.Type: ApplicationFiled: March 1, 2002Publication date: September 4, 2003Inventors: Paul Joseph Berlowitz, Robert Jay Wittenbrink, Tapan Chakrabarty
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Patent number: 6607568Abstract: Diesel fuels or blending stocks having excellent lubricity, oxidative stability and high cetane number are produced from non-shifting Fischer-Tropsch processes by separating the Fischer-Tropsch product into a lighter and heavier fractions, e.g., at about 700° F., subjecting the 700° F.+ fraction to hydro-treating, and combining the 700° F.− portion of the hydrotreated product with the lighter fraction that has not been hydrotreated.Type: GrantFiled: January 26, 2001Date of Patent: August 19, 2003Assignee: ExxonMobil Research and Engineering CompanyInventors: Robert Jay Wittenbrink, Richard Frank Bauman, Paul Joseph Berlowitz, Bruce Randall Cook
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Patent number: 6590002Abstract: A hydrocarbon wax product from a HCS slurry comprising liquid synthesis product and catalyst particles is purified by circulating the slurry from a synthesis zone with a first temperature through a treatment zone with a second temperature in which a hydrogen-containing treatment gas contacts the slurry. The gas treatment removes impurities from the hydrocarbon wax product and also removes catalyst de-activating species which may be present in the slurry. Purified wax product is separated and removed from the treated slurry via wax withdrawal means. This avoids or minimizes the need for further treating the wax product. Remaining treated slurry may be returned to the synthesis zone.Type: GrantFiled: July 13, 2001Date of Patent: July 8, 2003Assignee: ExxonMobil Research and Engineering CompanyInventors: Robert Jay Wittenbrink, Louis Francis Burns, Gregg Johnston Howsmon, Geoffrey Rhys Say, Charles Harrison Mauldin
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Patent number: 6570047Abstract: A slurry Fischer-Tropsch hydrocarbon synthesis process for synthesizing liquid hydrocarbons from synthesis gas, in a hydrocarbon synthesis reactor, also hydroisomerizes the synthesized hydrocarbons in one or more external downcomer reactor hydroisomerizing loops outside of the reactor, but which are a part of the synthesis reactor. A monolithic catalyst is used for the hydroisomerization, and slurry circulation between the synthesis reactor and the one or more hydroisomerization loops is achieved, at least in part, by density-difference driven hydraulics created by removing gas bubbles from the slurry passed into the loop. Preferably, catalyst particles are also removed before the slurry contacts the monolithic hydroisomerization catalyst.Type: GrantFiled: November 6, 2001Date of Patent: May 27, 2003Assignee: ExxonMobil Research and Engineering CompanyInventors: Charles John Mart, Robert Jay Wittenbrink, Janet Renee Clark, Jennifer Schaefer Feeley
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Publication number: 20030088138Abstract: A slurry Fischer-Tropsch hydrocarbon synthesis process for synthesizing liquid hydrocarbons from synthesis gas in a synthesis reactor also hydroisomerizes the synthesized hydrocarbons in one or more external lift reactor hydroisomerizing loops outside of the reactor, but which are a part of the reactor. A monolithic catalyst is used for the hydroisomerization and slurry circulation between the synthesis reactor and one or more loops is achieved, at least in part, by the lift action of a hydrogen treat gas injected into each loop.Type: ApplicationFiled: November 6, 2001Publication date: May 8, 2003Inventors: Charles John Mart, Robert Jay Wittenbrink, Janet Renee Clark, Jennifer Schaefer Feeley