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公开(公告)号：WO2023076202A1
公开(公告)日：2023-05-04
申请号：PCT/US2022/047639
申请日：2022-10-25
Applicant: EASTMAN CHEMICAL COMPANY
Inventor： ZHENG, Pinguan , HARRIS, Hannah, Grace , BARNICKI, Scott, Donald
IPC: C07C67/03 , C07C69/82 , C07C29/80 , C07C31/04 , C07C31/20 , C07C29/128 , C07C67/56 , C08J11/24 , C07C29/1285 , C08J2367/00
Abstract: Processes for recovering dialkyl terephthalates. The processes can include exposing a polyester composition to one or more glycols to depolymerization conditions thereby providing one or more depolymerization products. The one or more depolymerization products can be exposed to an alcoholysis process to recover dialkyl terephthalate. Optionally, the one or more glycols can be recycled and re-used in a subsequent dialkyl terephthalate recovery or other process.
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公开(公告)号：WO2020263593A1
公开(公告)日：2020-12-30
申请号：PCT/US2020/037369
申请日：2020-06-12
Applicant: EASTMAN CHEMICAL COMPANY
Inventor： ZHENG, Pinguan , SCHILLING, Curtis, Louis , HERMANS, Cornelis, Johannes Gerardus Maria , DELOACH, Joseph, Alexander , BILLODEAUX, Damon, Ray
Abstract: Disclosed is the use of glycol ether aryl ester plasticizers as viscosity reducing agents in plastisols comprising di(2-ethylhexyl) terephthalate, 1,2- cyclohexane dicarboxylic acid diisononyl ester, or diisononyl phthalate as the primary plasticizer. The glycol ether aryl ester plasticizers improve viscosity and viscosity stability while maintaining or improving plastisol properties such as Shore A Hardness and fusion time.
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公开(公告)号：WO2023076217A1
公开(公告)日：2023-05-04
申请号：PCT/US2022/047656
申请日：2022-10-25
Applicant: EASTMAN CHEMICAL COMPANY
Inventor： ZHENG, Pinguan , HARRIS, Hannah, Grace
Abstract: Processes for recovering dialkyl terephthalates. The processes can include exposing a polyester composition to one or more glycols to depolymerization conditions thereby providing one or more depolymerization products. The one or more depolymerization products can be exposed to an alcoholysis process to recover dialkyl terephthalate. Optionally, the one or more glycols can be recycled and re-used in a subsequent dialkyl terephthalate recovery or other process.
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公开(公告)号：WO2023076210A2
公开(公告)日：2023-05-04
申请号：PCT/US2022/047648
申请日：2022-10-25
Applicant: EASTMAN CHEMICAL COMPANY
Inventor： ZHENG, Pinguan , HARRIS, Hannah, Grace
IPC: C08J11/08 , C07C29/1285 , C07C29/80 , C07C67/03 , C07C67/56 , C08J11/24 , C08J2367/00
Abstract: Processes for recovering polyester from feedstocks. The processes can include exposing a feedstock composition to one or more solvents to dissolve at least a portion of the polyester or the non-polyester components. The processes can also include one or more solid-liquid separations to recover the polyester and/or to remove the non-polyester components. The recovered polyesters can also be used in a depolymerization process to recover one or more dialkyl terephthalates or glycols.
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5.发明申请
公开(公告)号：WO2019147458A1
公开(公告)日：2019-08-01
申请号：PCT/US2019/013958
申请日：2019-01-17
Applicant: EASTMAN CHEMICAL COMPANY
Inventor： CANNON, Joshua, Seth , CRAWFORD, Emmett, Dudley , GEORGE, Scott, Ellery , GUNES, Kaan , ZHENG, Pinguan
IPC: C09D177/12 , C08G69/44 , C08L77/12
CPC classification number: C09D177/12 , C08G69/44 , C08L77/12
Abstract: The present application discloses novel polyesteramides comprising cycloalkyl diols and/or cycloalkyl dialkanols with tunable properties based on the monomers and monomerratios used to prepare the polyesteramides and varying the reaction conditions. The present application also discloses compositions and articles.
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公开(公告)号：WO2023076212A1
公开(公告)日：2023-05-04
申请号：PCT/US2022/047650
申请日：2022-10-25
Applicant: EASTMAN CHEMICAL COMPANY
Inventor： BARNICKI, Scott, Donald , WEST, Nathan, Mitchell , ZHENG, Pinguan
Abstract: Processes for recovering dialkyl terephthalates. The processes can include exposing a polyester composition to one or more glycols to depolymerization conditions thereby providing one or more depolymerization products. The one or more glycols can include diethylene glycol (DEG), triethylene glycol (TEG), 1,4-cyclohexanedimethanol (CHDM), poly(ethylene glycol) (PEG), neopentyl glycol (NPG), propane diol (PDO), butanediol (BDO), 2-methyl-2,4-pentanediol (MP diol), poly(tetramethylene ether)glycol (PTMG), or a combination thereof. The one or more depolymerization products can be exposed to an alcoholysis process to recover dialkyl terephthalate. Optionally, ethylene glycol (EG) produced from the depolymerization process can be recovered and re-used in a subsequent dialkyl terephthalate recovery or other process.
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7.发明申请
公开(公告)号：WO2023076209A1
公开(公告)日：2023-05-04
申请号：PCT/US2022/047647
申请日：2022-10-25
Applicant: EASTMAN CHEMICAL COMPANY
Inventor： ZHENG, Pinguan , HARRIS, Hannah, Grace
Abstract: Processes for recovering dialkyl terephthalates. The processes can include exposing a feedstock composition that includes one or more tetramethylcyclobutanediol (TMCD) - containing polyesters ethylene glycol, methanol, or both under depolymerization conditions thereby providing one or more depolymerization products. The one or more depolymerization products can be exposed to an alcoholysis process to recover dialkyl terephthalate.
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公开(公告)号：WO2023076216A1
公开(公告)日：2023-05-04
申请号：PCT/US2022/047654
申请日：2022-10-25
Applicant: EASTMAN CHEMICAL COMPANY
Inventor： ZHENG, Pinguan , HARRIS, Hannah, Grace , BARNICKI, Scott, Donald
IPC: C07C67/03 , C07C67/54 , C07C69/82 , C08J11/24 , C07C31/04 , C07C29/80 , C07C31/20 , C07C29/128 , C07C67/56
Abstract: Processes for recovering dialkyl terephthalates. The processes can include exposing a polyester composition to one or more glycols to depolymerization conditions thereby providing one or more depolymerization products. The one or more depolymerization products can be exposed to an alcoholysis process to recover dialkyl terephthalate. Optionally, the one or more glycols can be recycled and re-used in a subsequent dialkyl terephthalate recovery or other process.
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公开(公告)号：WO2023076213A1
公开(公告)日：2023-05-04
申请号：PCT/US2022/047651
申请日：2022-10-25
Applicant: EASTMAN CHEMICAL COMPANY
Inventor： ZHENG, Pinguan , MURDAUGH, Perry, Michael , HARRIS, Hannah, Grace
IPC: C08J11/24
Abstract: Processes for recovering dialkyl terephthalates. The processes can include exposing a polyester composition to one or more glycols to depolymerization conditions thereby providing one or more depolymerization products. The one or more depolymerization products can be exposed to an alcoholysis process to recover dialkyl terephthalate.
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公开(公告)号：WO2023076207A1
公开(公告)日：2023-05-04
申请号：PCT/US2022/047644
申请日：2022-10-25
Applicant: EASTMAN CHEMICAL COMPANY
Inventor： ZHENG, Pinguan , HARRIS, Hannah, Grace , WICKES, Matthew, F , KETCHIE, William, Christopher
Abstract: Processes for recovering dialkyl terephthalates. The processes can include exposing a polyester composition to a first composition including one or more glycols and methanol under depolymerization conditions thereby providing one or more depolymerization products. The one or more depolymerization products can be exposed to an alcoholysis process to recover dialkyl terephthalate. Optionally, the one or more glycols and/or methanol can be recovered at the end of the alcoholysis process and re-used in subsequent processes for recovering dialkyl terephthalates.
