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    POLYESTER COMPOSITIONS COMPRISING TETRAMETHYL CYCLOBUTANEDIOL AND 1,4-CYCLOHEXANEDIMETHANOL HAVING AN IMPROVED CATALYST SYSTEM COMPRISING TITANIUM AND ZINC
    2.
    发明公开
    POLYESTER COMPOSITIONS COMPRISING TETRAMETHYL CYCLOBUTANEDIOL AND 1,4-CYCLOHEXANEDIMETHANOL HAVING AN IMPROVED CATALYST SYSTEM COMPRISING TITANIUM AND ZINC 审中-公开

    公开(公告)号：US20240117106A1

    公开(公告)日：2024-04-11

    申请号：US18257678

    申请日：2021-12-16

    Applicant: Eastman Chemical Company

    Inventor： Brian Alan Schaefer ,  Kate Elizabeth Allen

    IPC: C08G63/183 ,  C08G63/83 ,  C08L67/02

    CPC classification number: C08G63/183 ,  C08G63/83 ,  C08L67/02

    Abstract: A polyester composition comprising: (1) at least one polyester which comprises: (a) a dicarboxylic acid component comprising: (i) about 70 to about 100 mole % residues of terephthalic acid or esters thereof; (ii) about 0 to about 30 mole % of aromatic and/or aliphatic dicarboxylic acid residues having up to 20 carbon atoms; (b) a glycol component comprising: (i) about 10 to about 60 mole % of 2, 2,4,4-tetramethyl-1,3-cyclobutanediol residues; (ii) about 40 to about 90 mole % residues of 1,4-cyclohexanedimethanol; (iii) optionally, residues of at least one modifying glycol; wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; wherein the total mole % of the glycol component of the final polyester is 100 mole %; and (2) residues comprising titanium atoms and zinc atoms, and less than 30 ppm, or less than 20 ppm, or less than 10 ppm, or less than 5 ppm, or less than 2 ppm, or from 0 to 30 ppm, or from 0 to 20 ppm, or from 0 to 10 ppm, or 0 ppm of tin atoms.

    POLYESTER COMPOSITIONS COMPRISING TETRAMETHYL CYCLOBUTANEDIOL HAVING AN IMPROVED CATALYST SYSTEM COMPRISING TITANIUM AND ZINC ATOMS
    4.
    发明公开
    POLYESTER COMPOSITIONS COMPRISING TETRAMETHYL CYCLOBUTANEDIOL HAVING AN IMPROVED CATALYST SYSTEM COMPRISING TITANIUM AND ZINC ATOMS 审中-公开

    公开(公告)号：US20240052094A1

    公开(公告)日：2024-02-15

    申请号：US18257703

    申请日：2021-12-16

    Applicant: Eastman Chemical Company

    Inventor： Brian Alan Schaefer ,  Kate Elizabeth Allen

    IPC: C08G63/199 ,  C08G63/672 ,  C08G63/85 ,  C08G63/83

    CPC classification number: C08G63/199 ,  C08G63/672 ,  C08G63/85 ,  C08G63/83

    Abstract: This invention relates to a polyester composition comprising: (1) at least one polyester which comprises: (a) a dicarboxylic acid component comprising: (i) about 70 to about 100 mole % residues of terephthalic acid or esters thereof; (ii) about 0 to about 30 mole % of aromatic and/or aliphatic dicarboxylic acid residues having up to 20 carbon atoms; (b) a glycol component comprising: (i) about 10 to about 50 mole % of 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; (ii) about 50 to about 90 mole % residues of modifying glycols; wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; wherein the total mole % of the glycol component of the final polyester is 100 mole %; and (2) residues comprising titanium atoms and zinc atoms, and less than 30 ppm, or less than 20 ppm, or less than 10 ppm, or less than 5 ppm, or less than 2 ppm, or from 0 to 30 ppm, or from 0 to 20 ppm, or from 0 to 10 ppm, or 0 ppm of tin atoms.

    NOVEL THERMOPLASTIC POLYESTERS AND SYNTHESIS THEREFOR
    5.
    发明公开
    NOVEL THERMOPLASTIC POLYESTERS AND SYNTHESIS THEREFOR 审中-公开

    公开(公告)号：US20240043609A1

    公开(公告)日：2024-02-08

    申请号：US18257454

    申请日：2021-12-16

    Applicant: Eastman Chemical Company

    Inventor： Kate Elizabeth Allen ,  Jason Christopher Jenkins

    IPC: C08G63/183 ,  C08G63/137 ,  C08G63/84 ,  C08G63/85 ,  C08G63/83

    CPC classification number: C08G63/183 ,  C08G63/137 ,  C08G63/84 ,  C08G63/85 ,  C08G63/83

    Abstract: This invention relates to a process for making at least one polyester comprising: (a) a dicarboxylic acid component comprising: (i) 70 to 100 mole % of terephthalic acid residues; (ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and (iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; (b) a glycol component comprising: (i) 10 to 50 mole % of 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues, which is a combination of greater than 80 mole % of cis-2,2,4,4-tetramethyl-1,3-cyclobutanediol and less than 20 mole % of trans-2,2,4,4-tetramethyl-1,3-cyclobutanediol, or greater than 85 mole % of cis-2, 2,4,4-tetramethyl-1,3-cyclobutanediol and less than 15 mole % of trans-2,2,4,4-tetramethyl-1,3-cyclobutanediol, or greater than 90 mole % of cis-2,2,4,4-tetramethyl-1,3-cyclobutanediol and less than 10 mole % of trans-2,2,4,4-tetramethyl-1,3-cyclobutanediol, or greater than 95 mole % of cis-2, 2,4,4-tetramethyl-1,3-cyclobutanediol and less than 5 mole % of trans-2,2,4,4-tetramethyl-1,3-cyclobutanediol; (ii) 50 to 90 mole % of cyclohexanedimethanol residues; and (iii) optionally, residues of at least one modifying glycol; wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; wherein the total mole % of the glycol component of the final polyester is 100 mole %; and wherein the inherent viscosity of the final polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25° C.; and wherein the final polyester has a Tg from 85° C. to 150° C.

    POLYESTER COMPOSITIONS COMPRISING TETRAMETHYL-CYCLOBUTANEDIOL HAVING AN IMPROCED CATALYST SYSTEM COMPRISING LITHIUM AND GALLIUM ATOMS
    6.
    发明公开
    POLYESTER COMPOSITIONS COMPRISING TETRAMETHYL-CYCLOBUTANEDIOL HAVING AN IMPROCED CATALYST SYSTEM COMPRISING LITHIUM AND GALLIUM ATOMS 审中-公开

    公开(公告)号：US20240117110A1

    公开(公告)日：2024-04-11

    申请号：US18257714

    申请日：2021-12-16

    Applicant: Eastman Chemical Company

    Inventor： Brian Alan Schaefer ,  Kate Elizabeth Allen

    IPC: C08G63/199 ,  C08G63/83 ,  C08G63/84

    CPC classification number: C08G63/199 ,  C08G63/83 ,  C08G63/84

    Abstract: This invention relates to a polyester composition comprising: (1) at least one polyester which comprises: (a) a dicarboxylic acid component comprising: (i) about 70 to about 100 mole % residues of terephthalic acid or esters thereof; (ii) about 0 to about 30 mole % of aromatic and/or aliphatic dicarboxylic acid residues having up to 20 carbon atoms; (b) a glycol component comprising: (i) about 10 to about 50 mole % of 2,2,4,4-tetramethyM,3-cyclobutanediol residues; (ii) about 50 to about 90 mole % residues of modifying glycols; wherein the total mole % of the dicarboxylic acid component is 100 mole %, wherein the total mole % of the diol component is 100 mole %; and (2) lithium atoms, gallium atoms; and, optionally, less than 30 ppm, or less than 20 ppm, or less than 10 ppm, or less than 5 ppm, or less than 2 ppm, or from 0 to 30 ppm, or from 0 to 20 ppm, or from 0 to 10 ppm, or 0 ppm of tin atoms.

    POLYESTER COMPOSITIONS COMPRISING TETRAMETHYL CYCLOBUTANEDIOL HAVING AN IMPROVED CATALYST SYSTEM COMPRISING LITHIUM AND ALUMINUM
    8.
    发明公开
    POLYESTER COMPOSITIONS COMPRISING TETRAMETHYL CYCLOBUTANEDIOL HAVING AN IMPROVED CATALYST SYSTEM COMPRISING LITHIUM AND ALUMINUM 审中-公开

    公开(公告)号：US20240067775A1

    公开(公告)日：2024-02-29

    申请号：US18257729

    申请日：2021-12-16

    Applicant: Eastman Chemical Company

    Inventor： Brian Alan Schaefer ,  Kate Elizabeth Allen

    IPC: C08G63/183 ,  C08G63/83 ,  C08G63/84

    CPC classification number: C08G63/183 ,  C08G63/83 ,  C08G63/84

    Abstract: This invention relates to a polyester composition comprising: (1) at least one polyester which comprises: (a) a dicarboxylic acid component comprising: (i) about 70 to about 100 mole % residues of terephthalic acid or esters thereof; (ii) about 0 to about 30 mole % of aromatic and/or aliphatic dicarboxylic acid residues having up to 20 carbon atoms; (b) a glycol component comprising: (i) about 10 to about 50 mole % of 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; (ii) about 50 to about 90 mole % residues of modifying glycols; wherein the total mole % of the dicarboxylic acid component is 100 mole %, wherein the total mole % of the diol component is 100 mole %; and (2) residues of a catalyst system comprising lithium atoms, aluminum atoms, and, optionally, less than 30 ppm, or less than 20 ppm, or less than 10 ppm, or less than 5 ppm, or from 0 to 30 ppm, or from 0 to 20 ppm, or from 0 to 10 ppm, or 0 ppm of tin atoms, relative to the mass of final polyester being prepared.

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