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公开(公告)号：US20230075066A1
公开(公告)日：2023-03-09
申请号：US17759125
申请日：2021-01-20
Applicant: Eastman Chemical Company
Inventor： Wayne Ken Shih , Stephanie Kay Clendennen , Jeffrey Michael Clauson , Gaurav Amarpuri
Abstract: A thermoformable and biodegradable cellulose acetate composition comprising at least one cellulose acetate and either polyethylene glycol or m ethoxy polyethylene glycol are disclosed. The compositions are formed into films, sheets, and articles.
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公开(公告)号：US20230070962A1
公开(公告)日：2023-03-09
申请号：US17759458
申请日：2021-02-10
Applicant: Eastman Chemical Company
Inventor： Bruce Roger DeBruin , James Stewart Nelson , Brandon G Head , Robert Ryan Stanley
Abstract: Facilities and systems for handling of particulate plastic solids obtained from a mixed waste plastic separation system are provided. The facilities comprise at least one enclosed structure and an elongate overhead conveyor associated with the at least one enclosed structure that is configured to selectively deposit the particulate plastic solids into a plastic solids transport system that interconnects the handling facility and a plastic chemical recycling facility and/or at least one inventory pile within the at least one enclosed structure.
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公开(公告)号：US20230070315A1
公开(公告)日：2023-03-09
申请号：US17759464
申请日：2021-02-10
Applicant: Eastman Chemical Company
Inventor： William Lewis Trapp , Daryl Bitting , David Eugene Slivensky , Xianchun Wu , Bruce Roger DeBruin
Abstract: Methods and systems are provided for the conversion of waste plastics into various useful downstream recycle-content products. More particularly, the present system and method involves pyrolyzing one or more waste plastics into various pyrolysis products, including a carbon solids-containing pyrolysis residue, and then subjecting the pyrolysis residue to partial oxidation gasification to thereby form a syngas composition.
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公开(公告)号：US20230067427A1
公开(公告)日：2023-03-02
申请号：US17760315
申请日：2021-02-10
Applicant: Eastman Chemical Company
Inventor： Bruce Roger DeBruin , Daryl Bitting , David Eugene Slivensky , Xianchun Wu , William Lewis Trapp , Travis Wynn Keever , Michael Paul Ekart , Jaclyn Erin Shuman , Timothy Glenn Schaefer , Justin William Murphy , David Milton Lange , Aaron Nathaniel Edens
IPC: C10G1/10
Abstract: Chemical recycling facilities for processing mixed plastic waste are provided herein. Such facilities have the capability of processing mixed plastic waste streams and utilize a variety of recycling facilities, such as, for example, solvolysis facility, a pyrolysis facility, a cracker facility, a partial oxidation gasification facility, an energy generation/energy production facility, and a solidification facility. Streams from one or more of these individual facilities may be used as feed to one or more of the other facilities, thereby maximizing recovery of valuable chemical components and minimizing unusable waste streams.
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公开(公告)号：US11591411B2
公开(公告)日：2023-02-28
申请号：US16492966
申请日：2018-03-28
Applicant: Eastman Chemical Company
Inventor： Casey Lynn Elkins , Robert Jacks Sharpe , Bin Wang
Abstract: The present application discloses regioselectively substituted cellulose esters, films made from the regioselectively substituted cellulose esters and methods for making the same. The regioselectively substituted cellulose esters are synthesized using trifluoroacetic anhydride and cellulose with various acyl donors or acyl donor precursors.
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Patent Agency Ranking
公开(公告)号：US20230053452A1
公开(公告)日：2023-02-23
申请号：US17813134
申请日：2022-07-18
Applicant: Eastman Chemical Company
Inventor： Jeremy Kenneth Steach , Scott Gregory Gaynor , Jason Michael Spruell , Mohammad Abouelreesh Hassan , Guo Wei Qin , Yancey Appling , Syed Ali Shah , James M. Posa , Koushik Ghosh , Mounir Izallalen
Abstract: Staple fibers and filament yarns formed from cellulose esters, such as cellulose acetate, are described herein, along with methods of making the fibers and their use in nonwoven fabrics and articles. The filament yarns and fibers described herein may be coated with at least one finish and, in some cases, may be coated with two or more finishes selected to enhance the properties of the fibers. Staple fibers as described herein may be used to produce nonwoven webs that are strong, soft, absorbent, and biodegradable, and may be used in wet or dry nonwoven articles for a variety personal care, medical, industrial, and commercial applications.
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公开(公告)号：US20230030777A1
公开(公告)日：2023-02-02
申请号：US17757394
申请日：2020-12-10
Applicant: Eastman Chemical Company
Inventor： Robert Jacks Sharpe , Michael Charles Morrow
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.
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公开(公告)号：US11555100B2
公开(公告)日：2023-01-17
申请号：US16968635
申请日：2019-02-13
Applicant: Eastman Chemical Company
Inventor： Haining An , Wenlai Feng , Michael Eugene Donelson , Thomas Joseph Pecorini
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.
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公开(公告)号：US11519132B2
公开(公告)日：2022-12-06
申请号：US16522923
申请日：2019-07-26
Applicant: Eastman Chemical Company
Inventor： Charles Stuart Everett , Melvin Glenn Mitchell , Kenny Randolph Parker , Mounir Izallalen , Koushik Ghosh
Abstract: A composition obtained by combining virgin cellulose fibers, cellulose ester (CE) staple fibers having a denier per filament (DPF) of less than 3, and water, and water. The CE staple fibers can also have a short cut length of less than 6 mm and can be crimped. The compositions, when co-refined, are useful to make wet laid products such as paper, cardboard, and filters that have improved water drainage, air permeability, tensile strength, bulk, burst strength, or stiffness, or a combination of these properties.
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公开(公告)号：US20220363857A1
公开(公告)日：2022-11-17
申请号：US17753825
申请日：2020-09-24
Applicant: Eastman Chemical Company
Abstract: Cellulose ester compositions for expanded foam applications are provided. Specifically, production of melt processed cellulose esters has historically been limited to standard extrusion, molding and solvent casting methods. A combination of cellulose ester formulation and selected blowing agents have been found to produce articles of good density and good dimensional stability for an expanded foam process using conventional polystyrene processing equipment.
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