POLYESTER COMPOSITIONS COMPRISING TETRAMETHYL CYCLOBUTANEDIOL HAVING AN IMPROVED CATALYST SYSTEM COMPRISING TITANIUM AND ZINC ATOMS

    公开(公告)号:US20240052094A1

    公开(公告)日:2024-02-15

    申请号:US18257703

    申请日:2021-12-16

    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

    公开(公告)号:US20240043609A1

    公开(公告)日:2024-02-08

    申请号:US18257454

    申请日:2021-12-16

    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.

    STRETCHABLE MULTILAYER FILMS
    36.
    发明公开

    公开(公告)号:US20240018383A1

    公开(公告)日:2024-01-18

    申请号:US18253899

    申请日:2021-11-16

    CPC classification number: C09D167/02

    Abstract: Stretchable, multilayer films are disclosed that include a thermoplastic polyurethane substrate and a thermoset coating, applied to the thermoplastic polyurethane substrate. The thermoset coating may comprise the reaction product of: an oligomeric polyester resin comprising the reaction product of: diols or polyols comprising from about 30 to about 99 mol % trimethylolpropane and from about 1 mol % to about 70 mol % neopentyl glycol, in each case based on the total molar amount of diols and polyols reacted, and dicarboxylic acids or polycarboxylic acids comprising from about 1 mol % to about 70 mol % of one or more cyclic or acyclic aliphatic acids having from 2 to 12 carbons, based on the total molar amount of dicarboxylic acids and polycarboxylic acids reacted.

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