公开(公告)号：US12215283B2

公开(公告)日：2025-02-04

申请号：US17594370

申请日：2020-05-22

Applicant: Eastman Chemical Company

Inventor： Daryl Bitting ,  Kenny Randolph Parker ,  Michael Gary Polasek ,  David Eugene Sllivensky ,  Xianchun Wu ,  Jerome Leonard Stavinoha, Jr.

IPC: C10G51/02 ,  C10G1/00 ,  C10G1/10

Abstract: Recycle content pyoil is cracked in a cracker furnace to make olefins and the coil outlet temperature of the r-pyoil fed coils can be lowered by adding r-pyoil to the cracker feedstock, or alternatively, the coil outlet temperature of the r-pyoil fed tubes can rise if the mass flow rates of the combined cracker stream containing r-pyoil are kept the same or lowered. Further, increasing the hydrocarbon mass flow rate by addition of r-pyoil can be achieved to also increase the output of ethylene and propylene in the cracker effluent. The cracker furnace can accept ethane and/or propane feedstocks in vapor form along with a liquid and/or vapor feed of r-pyoil.

公开(公告)号：US20250026729A1

公开(公告)日：2025-01-23

申请号：US18293923

申请日：2022-07-27

Applicant: Eastman Chemical Company

Inventor： Kenny Randolph Parker ,  Kevin John Fontenot ,  Mesfin Ejerssa Janka

IPC: C07D307/68 ,  B01J27/08 ,  B01J31/04

Abstract: Disclosed herein is a retrofit process to make 5-(alkoxycarbonyl)furan-2-carboxylic acids (ACFC) from feedstocks comprised of furoates. When a feedstock comprised of methyl 5-methylfuran-2-carboxylate (MMFC) is used a product comprised of (5-(methoxycarbonyl)furan-2-carboxylic acid (MCFC) is obtained in high yield.

公开(公告)号：US20250011533A1

公开(公告)日：2025-01-09

申请号：US18697896

申请日：2022-04-05

Applicant: Eastman Chemical Company

Inventor： Mark Allen Peters ,  Huamin Hu ,  Marc Alan Strand ,  Jacob E. Napierala

IPC: C08G63/183 ,  C08G63/199 ,  C08G63/672 ,  C08J5/18 ,  C08L67/02

Abstract: The polyester compositions of the invention are useful in the manufacture of shrinkable films. The shrinkable films of the invention are comprised of polyester compositions comprising certain combinations of glycols and dicarboxylic acids in particular proportions which provide a lower level of shrinkage while having a melting temperature to accommodate modern sorting and recycling technologies.

公开(公告)号：US20250002612A1

公开(公告)日：2025-01-02

申请号：US18709180

申请日：2022-11-11

Applicant: Eastman Chemical Company

Inventor： Yichen Fang ,  Charles Ray Chambers, JR. ,  Sharmistha Mazumder ,  Devin G. Barrett

IPC: C08B3/16 ,  C08L1/14

Abstract: The present application discloses mixed cellulose esters that are freshwater biodegradable. The present application also discloses compositions, articles, beads and films made from the mixed cellulose esters.

公开(公告)号：US20250002440A1

公开(公告)日：2025-01-02

申请号：US18703806

申请日：2022-10-25

Applicant: Eastman Chemical Company

Inventor： Neil Warren Boaz ,  Jennifer Lloyd Stapleton

IPC: C07C67/02 ,  B01J31/02

Abstract: Processes are provided for the conversion of diglycol terephthalates to a dialkyl terephthalate, specifically bis(hydroxyalkyl) terephthalate to dimethyl terephthalate at low temperatures. The process involves initial catalyzed transesterification of bis(hydroxyalkyl) terephthalate with methanol at a first temperature of between 0° C. and 70° C. for an initial time followed by a second stage of the reaction at or below 30° C. In particular, the process is tolerant of significant amounts of glycol and water, so the precursor bis(hydroxyalkyl) terephthalate does not necessarily need to be highly pure or dry. Filtration of the reaction mixture allows recovery of high yields of dimethyl terephthalate of sufficiently high purity such that further purification is often not required in order to be repurposed for the manufacture of polyesters.

公开(公告)号：US20240424540A1

公开(公告)日：2024-12-26

申请号：US18692913

申请日：2022-09-16

Applicant: Eastman Chemical Company

Inventor： Michael Gary Polasek ,  Daryl Bitting ,  Xianchun Wu ,  David Eugene Slivensky ,  Avery L. Anderson

IPC: B09B3/40 ,  B09B101/75 ,  F22B1/16

Abstract: A heat integration process and system for a chemical recycling facility is provided that can lower the carbon footprint and global warming potential of the facility. More particularly, one or more heat transfer media may be used to recover heat energy from a waste plastic pyrolysis effluent and redistribute the recovered heat energy throughout the chemical recycling facility. Thus, the global warming potential of the chemical recycling facility may be optimized and lowered due to the heat integration process and system herein.

公开(公告)号：US12173237B2

公开(公告)日：2024-12-24

申请号：US17755342

申请日：2020-10-29

Applicant: Eastman Chemical Company

Inventor： Michael Gary Polasek ,  Daryl Bitting ,  David Eugene Slivensky ,  Xianchun Wu

IPC: C10G1/10 ,  C10G1/00 ,  C10G3/00 ,  C10G7/00 ,  C10G9/36

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). In some cases, a heavy fraction from the cracker effluent may be used to form a recycle content pyrolysis gasoline composition (r-pyrolysis gasoline).

公开(公告)号：US20240400788A1

公开(公告)日：2024-12-05

申请号：US18698400

申请日：2022-10-07

Applicant: Eastman Chemical Company

Inventor： STEPHANIE KAY CLENDENNEN ,  YICHEN FANG

IPC: C08K3/26 ,  C08K3/22 ,  C08K5/092

Abstract: The present application discloses melt processable cellulose ester compositions comprising a cellulose ester, at least one alkaline additive, and at least one neutralizing agent. Plasticizers can be optionally used in the compositions. The present application also discloses processes for preparing the compositions and articles that can be made from the compositions. The compositions show improved degradation properties.

公开(公告)号：US12152005B2

公开(公告)日：2024-11-26

申请号：US17441726

申请日：2020-03-25

Applicant: EASTMAN CHEMICAL COMPANY

Inventor： Damon Ray Billodeaux ,  Kenneth Wayne Hampton, Jr. ,  Magnus Alexander Pauly

IPC: C07C51/09

Abstract: Processes are disclosed for preparing carboxylic acids from organic esters, the processes comprising contacting an ester with water in the presence of an acid catalyst and a homogenizing solvent at conditions effective to form a carboxylic acid. The homogenizing solvent is present in an amount sufficient to form a single-phase reaction mixture comprising the ester, water, and homogenizing solvent. The homogenizing solvent may be selected from acetonitrile, dimethyl sulfoxide, and 1,4-dioxane.

公开(公告)号：US20240368474A1

公开(公告)日：2024-11-07

申请号：US18567956

申请日：2022-06-24

Applicant: Eastman Chemical Company

Inventor： Xianchun Wu ,  Daryl Bitting ,  Kenny Randolph Parker ,  Michael Gary Polasek ,  David Eugene Slivensky

IPC: C10G1/10 ,  C10G9/40

Abstract: Processes and facilities for providing recycled content hydrocarbon products (r-products) from recycled content pyrolysis oil (r-pyoil) and recycled content pyrolysis gas (r-pygas). Processing schemes provided herein maximize use of recycled content pyrolysis products to provide a variety of recycled content end products.