Patents Assigned to Eastman Chemical Company
  • CATALYSTS FOR PET METHANOLYSIS
    Publication number: 20230030777
    Abstract: Provided is a process for depolymerization of a poly(C2-C4 alkylene terephthalate), which comprises contacting a poly(C2-C4 alkylene terephthalate) with methanol and a catalyst chosen from potassium carbonate, sodium carbonate, magnesium methoxide, 1,8-diazabicyclo[5.4.0]undec-7-ene, and triazabicyclodecene, at a temperature sufficient to effect said depolymerization. The process of the invention can be carried out a substantially lower temperature and requires less methanol than necessary for zinc acetate-catalyzed reactions, and is sufficiently robust to tolerate lower-quality poly(C2-C4 alkylene terephthalate) scrap feeds.
    Type: Application
    Filed: December 10, 2020
    Publication date: February 2, 2023
    Applicant: Eastman Chemical Company
    Inventors: Robert Jacks Sharpe, Michael Charles Morrow
  • ESTERIFICATION OF ACETIC ACID RECOVERED FROM WOOD ACETYLATION WITH ETHER-ALCOHOLS
    Publication number: 20230024745
    Abstract: An esterification process that uses an acetic acid composition from a wood acetylation process as a reactant. Even though the acetic acid composition contains impurities, such as ethyl acetate, methyl acetate, acetaldehyde, acetone, terpenes and/or terpenes derivatives, the impurities do not adversely affect the quality of the ether-ester products. This process can be economically advantageous by using cheaper acetic acid—one sourced directly from a wood acetylation process.
    Type: Application
    Filed: December 16, 2019
    Publication date: January 26, 2023
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: MESFIN EJERSSA JANKA, KEVIN JOHN FONTENOT
  • METHOD FOR MANUFACTURE OF POLYESTERS WITH RECYCLE CONTENT
    Publication number: 20230026172
    Abstract: A method for manufacture of polyesters with recycle content is described in various aspects. The methods of the present disclosure effectively and cost-efficiently incorporates recycled DMT into existing TPA-based polyester manufacturing systems. Recycle feed compositions for manufacture of polyesters with recycle content and recycled content polyesters are also described.
    Type: Application
    Filed: December 16, 2020
    Publication date: January 26, 2023
    Applicant: Eastman Chemical Company
    Inventors: Earl Edmondson Howell, Jr., Michael Paul Ekart, Travis Wynn Keever, Bob N. Jack, Jonathan Michael Horton, Daniel Lee Martin
  • PROCESS FOR TREATING POLYESTER METHANOLYSIS DEPOLYMERIZATION PRODUCT STREAMS
    Publication number: 20230022664
    Abstract: Disclosed is a method for treating the product stream from a polyester methanolysis depolymerization process wherein the product stream includes dimethyl terephthalate and one or more side species selected from the group consisting of dimethyl phthalate, dimethyl isophthalate, bisphenol-A, an adipic acid diester and colorants. The method includes a) hydrogenating said dimethyl terephthalate to form one or more of dimethyl 1,4-cyclohexanedicarboxylate and 1,4-cyclohexanedimethanol; and (b) hydrogenating one or more of said one or more side species of said product stream. A method for depolymerization of polyester is also described.
    Type: Application
    Filed: December 16, 2020
    Publication date: January 26, 2023
    Applicant: Eastman Chemical Company
    Inventors: William Christopher Ketchie, Noah Glenn McMillan, Michael Paul Ekart, Travis Wynn Keever
  • Electrode for electrochemical sensors
    Patent number: 11561220
    Abstract: An electrochemical electrode for use in a biosensor. The electrode comprises a substrate, a palladium metal layer manufactured on the substrate, and a palladium oxide-containing layer manufactured on the palladium metal layer. The palladium metal layer has a thickness of no more than 90 nm, and the palladium oxide-containing layer has a thickness of no more than 40 nm.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: January 24, 2023
    Assignee: Eastman Chemical Company
    Inventors: Dennis Lee Ashford, II, Spencer Erich Hochstetler
  • METHOD FOR PRODUCING DIMETHYL TEREPHTHALATE FROM POLYESTER METHANOLYSIS DEPOLYMERIZATION SYSTEMS
    Publication number: 20230014630
    Abstract: Disclosed is a method for depolymerization of polyester. The method includes (a) treating said polyester with methanol under conditions sufficient to depolymerize at least some of said polyester and form a reaction product that includes dimethyl terephthalate and at least one diol; and (b) converting the diol to a compound substantially non-reactive with said with dimethyl terephthalate and the polyester. A method for producing a cyclic carbonate is also described.
    Type: Application
    Filed: December 16, 2020
    Publication date: January 19, 2023
    Applicant: Eastman Chemical Company
    Inventors: Robert Lin, Robert Jacks Sharpe
  • Cellulose ester and polymeric aliphatic polyester compositions and articles
    Patent number: 11555100
    Abstract: A cellulose ester composition is provided comprising at least one cellulose ester and at least one polymeric aliphatic polyester (PAP), and optionally at least one impact modifier and/or at least one monomeric plasticizer. Processes for producing the cellulose ester compositions as well as articles made using these compositions are also provided.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: January 17, 2023
    Assignee: Eastman Chemical Company
    Inventors: Haining An, Wenlai Feng, Michael Eugene Donelson, Thomas Joseph Pecorini
  • RECYCLE CONTENT POLY(VINYL ACETAL)
    Publication number: 20230002524
    Abstract: A poly(vinyl acetal) composition, such as a poly(vinyl butyral) composition or resin, can be made containing recycle content by the use of a recycle content aldehyde composition as a feedstock to make the PVA or by application of a recycle allotment, such as an allocation or credit, applied to either the aldehyde composition or to the PVA composition. The recycle content is obtained by cracking a recycle content pyrolysis oil to make a variety of olefins, such as propylene or ethylene.
    Type: Application
    Filed: November 6, 2020
    Publication date: January 5, 2023
    Applicant: Eastman Chemical Company
    Inventors: David Eugene Slivensky, Daryl Bitting, Kenny Randolph Parker, Michael Gary Polasek, William Lewis Trapp, Xianchun Wu
  • NOVEL POLYCONDENSATION PRE-POLYESTERS, OTHER COPOLYESTER PRECURSORS, AND COPOLYESTERS MADE THEREFROM
    Publication number: 20230002308
    Abstract: This invention relates to at least one copolyester comprising repeat units of the following structure: wherein R and R? represent residues of at least one diol; and wherein R and R? are not the same; wherein R? comprises residues of at least one diacid or diester and wherein n represents number of repeat units; and/or copolyester precursors thereof, and methods of manufacture.
    Type: Application
    Filed: June 26, 2020
    Publication date: January 5, 2023
    Applicant: Eastman Chemical Company
    Inventors: Robert Jacks Sharpe, Emmett Dudley Crawford
  • CELLULOSE ESTER COMPOSITIONS DERIVED FROM RECYCLED PLASTIC CONTENT SYNGAS
    Publication number: 20220411538
    Abstract: A process for preparing a recycle cellulose ester and a recycle cellulose ester composition and articles made with such recycle cellulose esters comprising at least one cellulose ester having at least one substituent on an anhydroglucose unit (AU) derived from recycled plastic content syngas are provided. The recycled plastic content syngas can be obtained by gasifying feedstocks containing a solid fossil fuel such as coal, a plastic, and water. The plastic can be post-consumer or postindustrial plastic.
    Type: Application
    Filed: August 16, 2022
    Publication date: December 29, 2022
    Applicant: Eastman Chemical Company
    Inventors: Ronald Buford Sheppard, William Lewis Trapp
  • RECYCLE CONTENT ALKANOLAMINES
    Publication number: 20220402860
    Abstract: An alkanolamine composition having a recycle content value is obtained by reacting a recycle content feedstock to make a recycle content alkanolamine or by deducting from a recycle inventory a recycle content value applied to an alkanolamine composition. At least a portion of the recycle content value in the feedstock or m an allotment obtained by an alkanolamine manufacturer has its origin in recycled waste and/or pyrolysis of recycled waste and/or in thermal steam cracking of recycle content pyoil.
    Type: Application
    Filed: November 6, 2020
    Publication date: December 22, 2022
    Applicant: Eastman Chemical Company
    Inventors: David Eugene Slivensky, Daryl Bitting, Kenny Randolph Parker, Michael Gary Polasek, William Lewis Trapp, Xianchun Wu
  • PROCESSES AND SYSTEMS FOR MAKING RECYCLE CONTENT HYDROCARBONS THROUGH AN ETHYLENE FRACTIONATOR
    Publication number: 20220403259
    Abstract: Processes and systems for making recycle content hydrocarbons, including olefins, from recycled waste material. Recycle waste material may be pyrolyzed to form recycle content pyrolysis oil composition (r-pyoil), at least a portion of which may then be cracked to form a recycle content olefin composition (r-olefin). The r-olefin may then be further separated into product streams in a separation zone downstream of the cracker furnace. In some cases, presence of recycle content hydrocarbons may facilitate more efficient operation of one or more distillation columns in the separation zone, including the deethanizer and ethylene fractionator.
    Type: Application
    Filed: October 29, 2020
    Publication date: December 22, 2022
    Applicant: Eastman Chemical Company
    Inventors: Daryl Bitting, Xianchun Wu, David Eugene Slivensky, Michael Gary Polasek
  • PROCESSES AND SYSTEMS FOR MAKING RECYCLE CONTENT HYDROCARBONS THROUGH A PROPYLENE FRACTIONATOR
    Publication number: 20220403260
    Abstract: Processes and systems for making recycle content hydrocarbons, including olefins, from recycled waste material. Recycle waste material may be pyrolyzed to form recycle content pyrolysis oil composition (r-pyoil), at least a portion of which may then be cracked to form a recycle content olefin composition (r-olefin). The r-olefin may then be further separated into product streams in a separation zone downstream of the cracker furnace. The presence of recycle content hydrocarbons may facilitate more efficient operation of one or more distillation columns in the separation zone, including the propylene fractionator.
    Type: Application
    Filed: October 29, 2020
    Publication date: December 22, 2022
    Applicant: Eastman Chemical Company
    Inventors: Daryl Bitting, Xianchun Wu, David Eugene Slivensky, Michael Gary Polasek
  • CELLULOSE ESTERS COMPRISING RECYCLE CONTENT BUTYRYL
    Publication number: 20220403053
    Abstract: A recycle content cellulose ester and method of making a recycle content cellulose ester wherein the recycle content is derived directly or indirectly from the cracking of recycle content pyrolysis oil and/or gas. The cracking of the pyrolysis oil can be conducted in a gas furnace or a split furnace.
    Type: Application
    Filed: November 6, 2020
    Publication date: December 22, 2022
    Applicant: Eastman Chemical Company
    Inventors: David Eugene Slivensky, Daryl Bitting, Kenny Randolph Parker, Michael Gary Polasek, William Lewis Trapp, Xianchun Wu
  • PROCESSES AND SYSTEMS FOR FORMATION OF RECYCLE-CONTENT HYDROCARBON COMPOSITIONS
    Publication number: 20220403254
    Abstract: Processes and systems for making recycle content hydrocarbons, including olefins, from recycled waste material. Recycle waste material may be pyrolyzed to form recycle content pyrolysis oil composition (r-pyoil), at least a portion of which may then be cracked to form a recycle content olefin composition (r-olefin). The r-olefin may then be further separated into product streams in a separation zone downstream of the cracker furnace. In some cases, presence of recycle content hydrocarbons may facilitate more efficient operation of one or more distillation columns in the separation zone, including the debutanizer.
    Type: Application
    Filed: October 29, 2020
    Publication date: December 22, 2022
    Applicant: Eastman Chemical Company
    Inventors: Michael Gary Polasek, Daryl Bitting, David Eugene Slivensky, Xianchun Wu, Carey Dan Ashcroft, Jerome Leonard Stavinoha, Jr.
  • PROCESSES AND SYSTEMS FOR FORMATION OF RECYCLE-CONTENT HYDROCARBON COMPOSITIONS
    Publication number: 20220403255
    Abstract: Processes and systems for making recycle content hydrocarbons, including olefins, using a cracker furnace having enhanced coil design. In some cases, the design of the furnace may prevent coking, so that the run length of the furnace is longer than conventional cracking furnaces. Cracker feed streams to the furnace can include recycle content pyrolysis oil and may be used to form olefin-containing effluent stream having recycle content.
    Type: Application
    Filed: October 29, 2020
    Publication date: December 22, 2022
    Applicant: Eastman Chemical Company
    Inventors: Daryl Bitting, Kenny Randolph Parker, Michael Gary Polasek, David Eugene Slivensky, Xianchun Wu
  • RECYCLE CONTENT OXO ALCOHOLS & OXO PLASTICIZERS
    Publication number: 20220402845
    Abstract: A composition having a recycle content value is obtained by reacting a recycle content feedstock to make a recycle content oxo alcohol or oxo plasticizer or by deducting from a recycle inventory a recycle content value applied to an oxo alcohol or oxo plasticizer composition. At least a portion of the recycle content value in the feedstock or in an allotment obtained by an oxo alcohol or oxo plasticizer manufacturer has its origin in recycled waste and/or pyrolysis of recycled waste and/or in thermal steam cracking of recycle content pyoil.
    Type: Application
    Filed: November 6, 2020
    Publication date: December 22, 2022
    Applicant: Eastman Chemical Company
    Inventors: David Eugene Slivensky, Daryl Bitting, Kenny Randolph Parker, Michael Gary Polasek, William Lewis Trapp, Xianchun Wu
  • PYROLYSIS METHOD AND SYSTEM FOR VARIABLE RECYCLE WASTE FEEDSTOCKS
    Publication number: 20220402006
    Abstract: A pyrolysis method and system are provided that may utilize a recycled plastic feedstock that comprises various types of waste plastics or a feedstock that comprises various types of waste plastics and at least one crude post-industrial liquid waste. The disclosed pyrolysis method and system may be configured to convert various types of waste plastics, including post-customer and post-industrial wastes, and/or crude post-industrial liquid wastes into useful pyrolysis oils.
    Type: Application
    Filed: October 29, 2020
    Publication date: December 22, 2022
    Applicant: Eastman Chemical Company
    Inventors: Xianchun Wu, Daryl Bitting, Kenny Randolph Parker, Michael Gary Polasek, David Eugene Slivensky, Damon Ray Billodeaux
  • Curable compositions comprising acetoacetylated resins, aldehydes and certain amines
    Patent number: 11530342
    Abstract: This invention relates to a curable composition comprising: I. a first component comprising a resin having at least one functional group selected from the group consisting of ?-ketoester and malonate functional groups, II. a second component comprising at least one curing agent having at least one aldehyde functional group, and III. a third component comprising at least one primary amine or at least one secondary amine, salts thereof, or combinations thereof.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: December 20, 2022
    Assignee: Eastman Chemical Company
    Inventors: Shawn Marie Dougherty, Terri Roxanne Carvagno, Monika Karin Wiedmann Boggs, Nick Allen Collins, Robert Jacks Sharpe, Ke Feng, Thauming Kuo, Liu Deng, Christopher Harlan Burk, Vasudev R. Bhonde
  • Composition of matter in a pre-refiner blend zone
    Patent number: 11530516
    Abstract: A composition is contained a blend zone prior to refining containing non-fibrillated virgin cellulose fibers, waste/recycle cellulose fibers or both; cellulose ester fibers, water, and one or more additives comprising fillers, internal sizing agents, biocides, process anti-foaming agents, colorants, optical modifiers, or a combination thereof. An in-line mixer can be used for adding the additives, and the consistency of the composition is lowered relative to a feed of material from a hydropulper.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: December 20, 2022
    Assignee: Eastman Chemical Company
    Inventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker, Koushik Ghosh, Mounir Izallalen