Patents by Inventor Steven A. Cohen
Steven A. Cohen 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: 20220127546Abstract: Improved processes for making glyceride oligomers are generally disclosed herein. In some embodiments, the disclosed processes provide improved methods of using olefin metathesis to oligomerize unsaturated glycerides to make novel branched-chain polyester compositions. In some aspects, the disclosure also provides compositions formed by such processes.Type: ApplicationFiled: February 19, 2020Publication date: April 28, 2022Inventors: Karunakaran Narasimhan, Alyssa Catherine Hotalen, Neil Thomas Fairweather, Luke Andrew Zannoni, Beth Annn Schubert, Andrea Dannenberg, Steven A. Cohen
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Patent number: 11180700Abstract: Methods are provided for refining natural oil feedstocks. The methods comprise reacting the feedstock in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product comprising olefins and esters. In certain embodiments, the methods further comprise separating the olefins from the esters in the metathesized product. In certain embodiments, the methods further comprise hydrogenating the olefins under conditions sufficient to form a fuel composition. In certain embodiments, the methods further comprise transesterifying the esters in the presence of an alcohol to form a transesterified product.Type: GrantFiled: May 15, 2020Date of Patent: November 23, 2021Assignee: Wilmar Trading Pte. Ltd.Inventors: Steven A. Cohen, Melvin L. Luetkens, Jr., Chander Balakrishnan, Robert Snyder
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Publication number: 20210040396Abstract: Methods are provided for refining natural oil feedstocks. The methods comprise reacting the feedstock in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product comprising olefins and esters. In certain embodiments, the methods further comprise separating the olefins from the esters in the metathesized product. In certain embodiments, the methods further comprise hydrogenating the olefins under conditions sufficient to form a fuel composition. In certain embodiments, the methods further comprise transesterifying the esters in the presence of an alcohol to form a transesterified product.Type: ApplicationFiled: May 15, 2020Publication date: February 11, 2021Applicant: Elevance Renewable Sciences, Inc.Inventors: Steven A. COHEN, Melvin L. Luetkens, Chander Balakrishnan, Robert Snyder
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Patent number: 10689582Abstract: Methods are provided for refining natural oil feedstocks. The methods comprise reacting the feedstock in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product comprising olefins and esters. In certain embodiments, the methods further comprise separating the olefins from the esters in the metathesized product. In certain embodiments, the methods further comprise hydrogenating the olefins under conditions sufficient to form a fuel composition. In certain embodiments, the methods further comprise transesterifying the esters in the presence of an alcohol to form a transesterified product.Type: GrantFiled: July 6, 2017Date of Patent: June 23, 2020Assignee: Elevance Renewable Sciences, Inc.Inventors: Steven A. Cohen, Melvin L. Luetkens, Jr., Chander Balakrishnan, Robert Snyder
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Patent number: 10532972Abstract: Dibasic esters (diesters) and their use in plasticizer compositions are generally disclosed. In some embodiments, the diesters are branched-chain esters of long-chain alkanedioic acids, such as octadecanedioic acid. In some embodiments, such plasticizer compositions are used to increase the plasticity of a polymer resin, such as a vinyl chloride resin or poly vinyl butyral. In some other embodiments, such plasticizer compositions are used to lower the glass transition temperature of a polymer resin. In some embodiments, at least a portion of the plasticizer is derived from a renewable source, such as a natural oil.Type: GrantFiled: April 28, 2017Date of Patent: January 14, 2020Assignee: Elevance Renewable Sciences, Inc.Inventors: Tessa Pals, Steven A. Cohen, Thomas E. Snead, Allyson Beuhler, Paul A. Bertin
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Patent number: 10501569Abstract: Oligomers of certain glyceride compounds are generally disclosed herein. In some embodiments, the glyceride compounds include natural oil glycerides, such as glycerides derived from natural oils, such as palm oil, soybean oil, canola oil, and the like. Compositions containing such glyceride oligomers are also disclosed herein. Processes for making such glyceride oligomers are also disclosed herein. In some embodiments, the processes for making such compounds include reacting a plurality of unsaturated glyceride compounds in the presence of a metathesis catalyst.Type: GrantFiled: November 19, 2018Date of Patent: December 10, 2019Assignee: Elevance Renewable Sciences, Inc.Inventors: Steven A. Cohen, Thomas E. Snead
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Patent number: 10479755Abstract: Methods of carrying out metathesis reactions of natural oil-derived polyenes (e.g., dienes and trienes), including functionalized polyenes, are generally disclosed herein. In some embodiments, the dienes or trienes contain a terminal carbon-carbon double bond, and the metathesis reaction is selective toward reaction of the terminal carbon-carbon double bonds in the polyene. Compounds made by such methods are also generally disclosed herein.Type: GrantFiled: December 12, 2016Date of Patent: November 19, 2019Assignee: Elevance Renewable Sciences, Inc.Inventors: Keith M. Wampler, Jane Uy, Steven A. Cohen
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Patent number: 10472588Abstract: Methods for making specialty chemical products and chemical intermediates using hydroformylation are generally disclosed. Further, compositions and compounds formed using such methods are also disclosed. In some embodiments, methods are disclosed for refining a renewably sourced material, such as a natural oil, to form compositions, which can be further reacted employing the methods disclosed herein to form certain specialty chemical products or chemical intermediates.Type: GrantFiled: June 27, 2017Date of Patent: November 12, 2019Assignee: Elevance Renewable Sciences, Inc.Inventors: Thomas E. Snead, Demond L. Gildon, Steven A. Cohen, Leslie V. Beltran, Robin Weitkamp
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Publication number: 20190194374Abstract: Oligomers of certain glyceride compounds are generally disclosed herein. In some embodiments, the glyceride compounds include natural oil glycerides, such as glycerides derived from natural oils, such as palm oil, soybean oil, canola oil, and the like. Compositions containing such glyceride oligomers are also disclosed herein. Processes for making such glyceride oligomers are also disclosed herein. In some embodiments, the processes for making such compounds include reacting a plurality of unsaturated glyceride compounds in the presence of a metathesis catalyst.Type: ApplicationFiled: November 19, 2018Publication date: June 27, 2019Applicant: Elevance Renewable Sciences, Inc.Inventors: Steven A. Cohen, Thomas E. Snead
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Patent number: 10294257Abstract: Methods of preparing ruthenium carbene complex precursors are disclosed herein. In some embodiments, the methods include reacting a ruthenium refinery salt with an L-type ligand and a reducing agent to form the ruthenium carbene complex precursor. Methods of preparing a ruthenium vinylcarbene complex are also disclosed. In some embodiments, preparing a ruthenium carbene complex includes converting a ruthenium carbene complex precursor into a ruthenium carbene complex having a structure (PR1R2R3)2Cl2Ru?CH—R4, wherein R1, R2, R3, and R4 are defined herein.Type: GrantFiled: October 26, 2016Date of Patent: May 21, 2019Assignee: Elevance Renewable Sciences, Inc.Inventors: Linda A. Kunz, Steven A. Cohen
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Patent number: 10155833Abstract: Oligomers of certain glyceride compounds are generally disclosed herein. In some embodiments, the glyceride compounds include natural oil glycerides, such as glycerides derived from natural oils, such as palm oil, soybean oil, canola oil, and the like. Compositions containing such glyceride oligomers are also disclosed herein. Processes for making such glyceride oligomers are also disclosed herein. In some embodiments, the processes for making such compounds include reacting a plurality of unsaturated glyceride compounds in the presence of a metathesis catalyst.Type: GrantFiled: August 18, 2016Date of Patent: December 18, 2018Assignee: Elevance Renewable Sciences, Inc.Inventors: Steven A. Cohen, Thomas E. Snead
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Publication number: 20180208873Abstract: A metathesized natural oil composition comprising (i) a mixture olefins and/or esters, or (ii) a metathesized natural oil, is disclosed. The metathesized natural oil composition has a number average molecular weight in the range from about 100 g/mol to about 150,000 g/mol, a weight average molecular weight in the range from about 1,000 g/mol to about 100,000 g/mol, a z-average molecular weight in the range from about 5,000 g/mol to about 1,000,000 g/mol, and a polydispersity index of about 1 to about 20. The metathesized natural oil composition is metathesized at least once.Type: ApplicationFiled: November 28, 2017Publication date: July 26, 2018Applicant: Elevance Renewable Sciences, Inc.Inventors: Steven A. Cohen, M. Michelle Morie-Bebel, Alexander D. Ilseman, Benjamin Bergmann, Stephen A. DiBiase, S. Alexander Christensen
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Patent number: 9944860Abstract: Various methods are provided for treating and reacting a metathesis feedstock. In one embodiment, the method includes providing a feedstock comprising a natural oil, chemically treating the feedstock with a metal alkoxide under conditions sufficient to diminish catalyst poisons in the feedstock, and, following the treating, combining a metathesis catalyst with the feedstock under conditions sufficient to metathesize the feedstock.Type: GrantFiled: March 11, 2014Date of Patent: April 17, 2018Assignee: Elevance Renewable Sciences, Inc.Inventors: Steven A. Cohen, Donde R. Anderson, Zhe Wang, Timothy M. Champagne, Thay A. Ung
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Patent number: 9926255Abstract: High-purity dibasic acid compositions are generally disclosed. In some embodiments, the dibasic acid compositions are solutions or suspensions. In some other embodiments, the compositions are solid-state compositions. In some such embodiments, the solid-state compositions include a dibasic acid as a crystalline solid and further include a low quantity of certain impurities, such as monobasic acids, various esters, and the like. Methods and systems for making such high-purity dibasic acid compositions are also disclosed.Type: GrantFiled: October 7, 2016Date of Patent: March 27, 2018Assignee: Elevance Renewable Sciences, Inc.Inventors: Alpeshkumar K. Patel, Brian Pease, Bradon J. Dreyer, Yenamandra Viswanath, Brian Albert, Steven A. Cohen
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Publication number: 20180051114Abstract: Oligomers of certain glyceride compounds are generally disclosed herein. In some embodiments, the glyceride compounds include natural oil glycerides, such as glycerides derived from natural oils, such as palm oil, soybean oil, canola oil, and the like. Compositions containing such glyceride oligomers are also disclosed herein. Processes for making such glyceride oligomers are also disclosed herein. In some embodiments, the processes for making such compounds include reacting a plurality of unsaturated glyceride compounds in the presence of a metathesis catalyst.Type: ApplicationFiled: August 18, 2016Publication date: February 22, 2018Applicant: Elevance Renewable Sciences, Inc.Inventors: Steven A. Cohen, Thomas E. Snead
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Publication number: 20180044597Abstract: Methods are provided for refining natural oil feedstocks. The methods comprise reacting the feedstock in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product comprising olefins and esters. In certain embodiments, the methods further comprise separating the olefins from the esters in the metathesized product. In certain embodiments, the methods further comprise hydrogenating the olefins under conditions sufficient to form a fuel composition. In certain embodiments, the methods further comprise transesterifying the esters in the presence of an alcohol to form a transesterified product.Type: ApplicationFiled: July 6, 2017Publication date: February 15, 2018Applicant: Elevance Renewable Sciences, Inc.Inventors: Steven A. Cohen, Melvin L. Luetkens, JR., Chander Balakrishnan, Robert Snyder
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Patent number: 9890348Abstract: A metathesized natural oil composition comprising (i) a mixture olefins and/or esters, or (ii) a metathesized natural oil, is disclosed. The metathesized natural oil composition has a number average molecular weight in the range from about 100 g/mol to about 150,000 g/mol, a weight average molecular weight in the range from about 1,000 g/mol to about 100,000 g/mol, a z-average molecular weight in the range from about 5,000 g/mol to about 1,000,000 g/mol, and a polydispersity index of about 1 to about 20. The metathesized natural oil composition is metathesized at least once.Type: GrantFiled: June 20, 2013Date of Patent: February 13, 2018Assignee: Elevance Renewable Sciences, Inc.Inventors: Steven A. Cohen, M. Michelle Morie-Bebel, Alexander D. Ilseman, Benjamin Bergmann, Stephen A. DiBiase, S. Alexander Christensen
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Publication number: 20180016519Abstract: Methods for making specialty chemical products and chemical intermediates using hydroformylation are generally disclosed. Further, compositions and compounds formed using such methods are also disclosed. In some embodiments, methods are disclosed for refining a renewably sourced material, such as a natural oil, to form compositions, which can be further reacted employing the methods disclosed herein to form certain specialty chemical products or chemical intermediates.Type: ApplicationFiled: June 27, 2017Publication date: January 18, 2018Applicant: Elevance Renewable Sciences, Inc.Inventors: Thomas E. Snead, Demond L. Gildon, Steven A. Cohen, Leslie V. Beltran, Robin Weitkamp
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Publication number: 20170349531Abstract: Dibasic esters (diesters) and their use in plasticizer compositions are generally disclosed. In some embodiments, the diesters are branched-chain esters of long-chain alkanedioic acids, such as octadecanedioic acid. In some embodiments, such plasticizer compositions are used to increase the plasticity of a polymer resin, such as a vinyl chloride resin or poly vinyl butyral. In some other embodiments, such plasticizer compositions are used to lower the glass transition temperature of a polymer resin. In some embodiments, at least a portion of the plasticizer is derived from a renewable source, such as a natural oil.Type: ApplicationFiled: April 28, 2017Publication date: December 7, 2017Applicant: Elevance Renewable Sciences, Inc.Inventors: Tessa Pals, Steven A. Cohen, Thomas E. Snead, Allyson Beuhler, Paul A. Bertin
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Patent number: 9738853Abstract: Methods for making specialty chemical products and chemical intermediates using hydroformylation are generally disclosed. Further, compositions and compounds formed using such methods are also disclosed. In some embodiments, methods are disclosed for refining a renewably sourced material, such as a natural oil, to form compositions, which can be further reacted employing the methods disclosed herein to form certain specialty chemical products or chemical intermediates.Type: GrantFiled: March 5, 2015Date of Patent: August 22, 2017Assignee: Elevance Renewable Sciences, Inc.Inventors: Thomas E. Snead, Demond L. Gildon, Steven A. Cohen, Leslie V. Beltran, Robin Weitkamp