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公开(公告)号：US20230127018A1
公开(公告)日：2023-04-27
申请号：US17908769
申请日：2021-03-02
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Anatoly I. Kramer , Alexander V. Zabula , Elizabeth A. Turner , Raf de Meester , Helge Jaensch , Jeffrey C. Bunquin , Javier Guzman , Emiel de Smit , John S. Coleman , Madelyn Bekker , Roxana Perez Velez
Abstract: Wax compositions may be obtained by providing an olefinic feed comprising a first linear alpha olefin having m carbon atoms and a second linear alpha olefin having n carbon atoms, wherein m and n are independently selected integers each ranging from about 12 to about 100, and the olefinic feed optionally comprises one or more internal olefins and/or one or more branched olefins; contacting the olefinic feed with a metal carbene catalyst in a reactor; forming ethylene and a hydrocarbon substance comprising a linear olefin dimer comprising two carbon atoms less than a sum of m and n; removing the ethylene from the reactor while forming the linear olefin dimer; and isolating a wax composition comprising the linear olefin dimer, a hydrogenated reaction product thereof, or any combination thereof.
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公开(公告)号：US20200290945A1
公开(公告)日：2020-09-17
申请号：US16753056
申请日：2018-06-07
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Monica D. Lotz , Etienne Mazoyer , Constantinos P. Bokis , Javier Guzman
IPC: C07C51/493 , C07C51/265 , C07C67/08 , C07C67/52
Abstract: Processes are described for purifying a biphenyldicarboxylic acid product containing one or more impurities, particularly at least formylbiphenylcarboxylic acid. In the processes, at least a portion of the biphenyldicarboxylic acid product is contacted with an alcohol under conditions effective to esterify at least part of the biphenyldicarboxylic acid and at least part of the formylbiphenylcarboxylic acid and produce an esterification effluent containing biphenyldicarboxylic acid diester and formylbiphenylcarboxylic acid ester. At least part of the biphenyldicarboxylic acid diester is then separated from the esterification effluent by crystallization. Advantageously, a polyester product may be produced from the separated biphenyldicarboxylic acid diester.
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公开(公告)号：US20200270396A1
公开(公告)日：2020-08-27
申请号：US16868158
申请日：2020-05-06
Inventor： Katherine V. Heifferon , Timothy E. Long , S. Richard Turner , Yong Yang , Syamal Tallury , Ting Chen , Javier Guzman
IPC: C08G63/191 , C08G63/185 , C08G63/06 , C08G63/80
Abstract: Liquid crystalline hydroquinone-3,4′-biphenyl dicarboxylate polyesters, and methods of making them. The polyesters may be melt processed at a temperature below the thermal decomposition temperature and the isotropic temperature, and may form a liquid crystalline glass phase. The polyesters may be formed by polycondensation of hydroquinone or a hydroquinone derivative with 3,4′-biphenyl dicarboxylic acid.
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Patent Agency Ranking
公开(公告)号：US11857954B2
公开(公告)日：2024-01-02
申请号：US17442710
申请日：2020-03-27
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Jeffrey C. Bunquin , Joshua J. Willis , Paul F. Keusenkothen , Javier Guzman , Jennifer R. Pena
IPC: B01J35/00 , B01J6/00 , B01J23/889 , B01J35/08 , B01J37/00 , B01J37/02 , C07C1/04 , C07C29/156
CPC classification number: B01J35/0013 , B01J6/001 , B01J23/8892 , B01J35/006 , B01J35/08 , B01J37/0072 , B01J37/0207 , B01J37/0209 , B01J37/0215 , C07C1/0435 , C07C29/156 , C07C2523/84
Abstract: Disclosed are novel supported nanoparticle compositions, precursors, processes for making supported nanoparticle compositions, processes for making catalyst compositions, and processes for converting syngas. The catalyst composition can comprise nanoparticles comprising metal oxide(s), such as manganese cobalt oxide. This disclosure is particularly useful for converting syngas via the Fischer-Tropsch reactions to make olefins and/or alcohols.
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公开(公告)号：US11236028B2
公开(公告)日：2022-02-01
申请号：US16958383
申请日：2019-01-08
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Constantinos P. Bokis , Javier Guzman , Monica D. Lotz , Michael P. Lanci , Catherine M. Dorsi , Scott J. Weigel
IPC: C07C7/00 , B01D3/10 , C07C2/66 , C07C2/74 , C07C5/10 , C07C5/27 , C07C5/367 , C07C7/04 , C07C7/14 , C07C15/14
Abstract: Processes are described for separating 3,4′- and 4,4′-dimethylbiphenyl from a mixture comprising at least 3,3′-, 3,4′- and 4,4′-dimethylbiphenyl. In the processes, the mixture is cooled to produce a crystallization product comprising at least of the 4,4′-dimethylbiphenyl from the feed mixture and a first mother liquor product. The first mother liquor product is distilled to produce a bottoms stream enriched in 4,4′-dimethylbiphenyl as compared with the first mother liquor product and an overhead stream deficient in 4,4′-dimethylbiphenyl as compared with the first mother liquor product. The overhead stream is then cooled to produce a second crystallization product comprising at least part of the 3,4′-dimethylbiphenyl from the overhead stream and a second mother liquor product.
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公开(公告)号：US20210355271A1
公开(公告)日：2021-11-18
申请号：US17284717
申请日：2019-11-13
Inventor： Monica Lotz , Kapil Kandel , Michael Salciccioli , Stephen Cohn , Alan A. Galuska , Javier Guzman , S. Richard Turner , Hans Eliot Edling , Edward E. Paschke
IPC: C08G63/185 , C08G63/199 , C08G63/85 , C08G63/80
Abstract: Semicrystalline bifuran polyesters wherein the diacid and/or diol components include bifuran units such as those derived from 2,2′-bifuran-5,5′-dicarboxylic acid (BFA), dimethyl-2,2′-bifuran-5,5′-dicarboxylate (BFE), and/or bis(hydroxyethyl) bifuranoate (BHEB) Polyethylene-BFE (PEBF) having a high ΔHf and high Tg determined by DSC on the second heating ramp is described. Polybutylene-BFE (PBBF), polyhexylene-BFE (PHBF), polypropylene-BFE (PPBF), etc., are also described. Method for making bifuran polyesters includes melt esterification or transesterification and polycondensation of one or more monomers comprising a diacid component and a diol component, wherein the one or more monomers include a bifuran monomer, such as BFA, BFE, BHEB or BFD. Also described is a method of forming a bifuran polyester prepolymer in the melt, pelletization, crystallization, and solid state polymerization.
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公开(公告)号：US10759900B1
公开(公告)日：2020-09-01
申请号：US16868158
申请日：2020-05-06
Inventor： Katherine V. Heifferon , Timothy E. Long , S. Richard Turner , Yong Yang , Syamal Tallury , Ting Chen , Javier Guzman
IPC: C08G63/191 , C08G63/185 , C08G63/80 , C08G63/06 , C09K19/38
Abstract: Liquid crystalline hydroquinone-3,4′-biphenyl dicarboxylate polyesters, and methods of making them. The polyesters may be melt processed at a temperature below the thermal decomposition temperature and the isotropic temperature, and may form a liquid crystalline glass phase. The polyesters may be formed by polycondensation of hydroquinone or a hydroquinone derivative with 3,4′-biphenyl dicarboxylic acid.
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公开(公告)号：US20150126772A1
公开(公告)日：2015-05-07
申请号：US14515823
申请日：2014-10-16
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Guang Cao , James R. Lattner , Javier Guzman , Shifang L. Luo , Gary D. Mohr
IPC: C07C51/265 , C07C45/66 , C07C29/20 , C07D493/08
CPC classification number: C07C51/265 , C07C29/00 , C07C29/19 , C07C29/20 , C07C45/66 , C07C51/255 , C07C67/08 , C07C2601/14 , C07D307/46 , C07D493/08 , C08K5/0016 , C07C33/26 , C07C33/14 , C07C47/56 , C07C63/26
Abstract: This invention relates to the production of terephthalic acid by 1) cycloaddition of 2,5 substituted furan (such as 2,5-bis hydroxymethylfuran or 5-hydroxymethylfurfural) and ethylene, and 2) the subsequent oxidation of the dehydrated cycloaddition product to terephthalic acid. The invention relates more particularly to overall biobased pathways for making terephthalic acid from carbohydrates such as hexoses (e.g., glucose or fructose).
Abstract translation: 本发明涉及通过1）2,5-取代的呋喃（例如2,5-双羟甲基呋喃或5-羟甲基糠醛）和乙烯的环加成制备对苯二甲酸，和2）随后将脱水环加成产物氧化成对苯二甲酸 。 本发明更具体地涉及从碳水化合物如己糖（例如葡萄糖或果糖）制备对苯二甲酸的总体生物基通路。
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