Abstract: Semicrystalline polyethylene-2,2?-bifuran-5,5?-dicarboxylate (PEBF) homopolyester or copolyester with up to 5 mole percent isophthalate or up to 2.7 mole percent terephthalate, based on the diacid component, or up to 2.5 mole percent 1,4-cyclohexanedimethanol (CHDM), based on the diol component, prepared by esterifying or transesterifying the diacid and the diol components with a catalyst including about 10 to about 50 ppm wt metal, and polycondensation, wherein the bifuran polyester has an intrinsic viscosity of at least 0.4 g/dL and a semicrystalline melting peak (Tm) with ?Hf equal to or greater than 5 J/g on the second heating ramp.

Abstract: Copolyesters such as polyethylene terephthalate (PET) or polyethylene furanoate (PEF) modified with bifuran polyacids such as dimethyl-2,2?-bifuran-5,5?-dicarboxylate (BFE), 2,2?-bifuran-5,5?-dicarboxylic acid (BDA), or bis(2-hydroxyethyl)-2,2?-bifuran-5,5?-dicarboxylate (BHEB), and/or bifuran polyhydroxyls, may have improved properties such as glass transition temperature (Tg), tensile modulus, barrier properties, crystallinity, and/or impact strength. Polyethylene terephthalate-co-bifuranoate (PETBF) has an improved Tg. Also described are polyethylene furanoate-co-bifuranoates (PEFBF).

Abstract: Semicrystalline bifuran polyesters wherein the diacid and/or diol components include bifuran units such as those derived from 2,2?-bifuran-5,5?-dicarboxylic acid (BFA), dimethyl-2,2?-bifuran-5,5?-dicarboxylate (BFE), and/or bis(hydroxyethyl) bifuranoate (BHEB) Polyethylene-BFE (PEBF) having a high ?Hf and high Tg determined by DSC on the second heating ramp is described. Polybutylene-BFE (PBBF), polyhexylene-BFE (PHBF), polypropylene-BFE (PPBF), etc., are also described. Method for making bifuran polyesters includes melt esterification or transesterification and polycondensation of one or more monomers comprising a diacid component and a diol component, wherein the one or more monomers include a bifuran monomer, such as BFA, BFE, BHEB or BFD. Also described is a method of forming a bifuran polyester prepolymer in the melt, pelletization, crystallization, and solid state polymerization.

Abstract: Bibenzoate copolyesters are based on (4,4?-biphenyl dicarboxylic acid-co-3,4?-biphenyl dicarboxylic acid) as the diacid component, and on an alicyclic diol compound such as 1,4-cyclohexanedimethanol as a portion of the diol component. Copolyesters are based on 4,4?-biphenyl dicarboxylic acid, and/or 3,4?-biphenyl dicarboxylic acid as the diacid component and may include a multifunctional acid. Copolymers may optionally base an essentially amorphous morphology, high glass transition temperature, high elongation at break, and/or high melting temperature.

Abstract: Liquid crystalline hydroquinone-3,4?-biphenyl dicarboxylate polyesters, and methods of making them. The polyesters may be melt processed at a temperature below the thermal decomposition temperature and the isotropic temperature, and may form a liquid crystalline glass phase. The polyesters may be formed by polycondensation of hydroquinone or a hydroquinone derivative with 3,4?-biphenyl dicarboxylic acid.

Abstract: Liquid crystalline hydroquinone-3,4?-biphenyl dicarboxylate polyesters, and methods of making them. The polyesters may be melt processed at a temperature below the thermal decomposition temperature and the isotropic temperature, and may form a liquid crystalline glass phase. The polyesters may be formed by polycondensation of hydroquinone or a hydroquinone derivative with 3,4?-biphenyl dicarboxylic acid.

Abstract: Copolyesters having improved properties based on a diacid component of 4,4?-biphenyl dicarboxylic acid or 3,4?-biphenyl dicarboxylic acid and a mixed diol component, such as 1,4 cyclohexanedimethanol (CHDM) with ethylene glycol or neopentyl glycol (NPG), e.g., poly(4,4?-biphenyl dicarboxylate-(ethylene glycol-co-CHDM)), poly(4,4?-biphenyl dicarboxylate-(NPG-co-CHDM)), poly(3,4?-biphenyl dicarboxylate-(ethylene glycol-co-CHDM)), poly(3,4?-biphenyl dicarboxylate-(NPG-co-CHDM)); methods of making the copolyesters; and shaped articles made of the copolyesters. Also, polyesters based on biphenyl dicarboxylic acid and NPG; methods of making the polyesters; and shaped articles made of the polyesters.

Abstract: Copolyesters are based on a diacid component containing terephthalate and 4,4?-biphenyl dicarboxylate or 3,4?-biphenyl dicarboxylate, and a diol component containing an alkylene diol, e.g., ethylene glycol or NPG, and an alicyclic polyhydroxyl compound, e.g., CHDM. The copolyesters may have a glass transition temperature more than 100° C. and mechanical, thermal and/or barrier characteristics at least comparable to some commercially available copolyesters. A method to control the morphology and properties of a copolyester involves contacting diacid and diol components in the presence of a catalyst, selecting proportions of terephthalic and 4,4?-biphenyl dicarboxylic or 3,4?-biphenyl dicarboxylic acids or ester producing equivalents thereof in the diacid component, and selecting the alkylene diol and proportions of the CHDM (or other alicyclic polyhydroxyl compound) and the alkylene diol in the diol component, to obtain the desired morphology and other properties.

Abstract: Copolyesters having improved properties based on 1,4 cyclohexanedimethanol (CHDM) or neopentyl glycol (NPG), and a diacid component containing a combination of two diacids selected from 4,4?-biphenyl dicarboxylic acid, 3,4?-biphenyl dicarboxylic acid, and terephthalic acid; methods of making the copolyesters; and shaped articles made of the copolyesters.

Abstract: Bibenzoate copolyesters are based on (4,4?-biphenyl dicarboxylic acid-co-3,4?-biphenyl dicarboxylic acid) as the diacid component, and on an alicyclic diol compound such as 1,4-cyclohexanedimethanol as a portion of the diol component. Copolyesters are based on 4,4?-biphenyl dicarboxylic acid, and/or 3,4?-biphenyl dicarboxylic acid as the diacid component and may include a multifunctional acid. Copolymers may optionally base an essentially amorphous morphology, high glass transition temperature, high elongation at break, and/or high melting temperature.

Abstract: The primary diol triptycene derivative triptycene-1,4-hydroquinone-bis(2-hydroxyethyl) ether (TD) is provided, as are methods of using the same to synthesize polyesters and polyurethanes, and polyesters and polyurethanes synthesized therewith.

Abstract: Amorphous copolyesters containing residues derived from 2,2′-[2,2-](sulfonylbis(4,1-phenyleneoxy))bis(ethanol). They exhibit enhanced heat distortion temperatures and glass transition temperatures without a significant increase in viscosity at low shear rates. The amorphous copolyesters also have improved resistance to attack by lipid solutions and are readily molded and extruded to form medial devices such as connectors, tubes, etc. which are useful for transport of lipids and other medical solutions.

Abstract: An amorphous copolyester having a maximum melt viscosity at 1 radian/second and at about 260 to about 290° C. of about 12000 poise, a glass transition temperature ranging from about 88° C. to about 120° C., and an inherent viscosity of at least about 0.6 dl/g. The amorphous copolyesters comprise the reaction product of a diol component and a dicarboxylic acid component. The diol component comprises residues of from about 5.0 to about 50 mole % of 2,2′-(sulfonylbis (4,1-phenyleneoxy))-bis(ethanol) which has the following chemical formula: and from about 50 to about 95 mole % of a mixture of at least two diols selected from the group consisting of ethylene glycol, neopentyl glycol, 1,3-propanediol, 1,4-butanediol, 1,4-cyclohexanedimethanol, and mixture thereof. The dicarboxylic acid component comprises residues of terephthalic acid, isophthalic acid, 1,4-cyclohexandedicarboxylic acid, 2,6-naphthalene dicarboxylic acid and mixtures thereof.

Abstract: The invention relates to an amorphous copolyester having a maximum melt viscosity at 1 radian/second and at about 260 to about 290.degree. C. of about 12000 poise, a glass transition temperature ranging from about 88.degree. C. to about 120.degree. C., and an inherent viscosity of at least about 0.6 dl/g. The amorphous copolyesters comprise the reaction product of a diol component and a dicarboxylic acid component. The diol component comprises residues of from about 5.0 to about 50 mole % of 2,2'-(sulfonylbis(4,1 -phenyleneoxy))-bis(ethanol) which has the following chemical formula: ##STR1## and from about 50 to about 95 mole % of a mixture of at least two diols selected from the group consisting of ethylene glycol, neopentyl glycol, 1,3-propanediol, 1,4-butanediol, 1,4-cyclohexanedimethanol, and mixture thereof. The dicarboxylic acid component comprises residues of terephthalic acid, isophthalic acid, 1,4-cyclohexandedicarboxylic acid, 2,6-naphthalene dicarboxylic acid and mixtures thereof.

Abstract: Copolymers are produced when a 4-vinyl-1,3 dioxolane monomer is copolymerized with an imidized maleic anhydride (for example, maleimide) monomer in the presence of a free radical initiator. Alternatively, a maleamic acid or maleimide functionality may be introduced into a copolymer containing a 4-vinyl-1,3 dioxolane and maleic anhydride by introducing a primary amine into the reaction mixture. Also, the dioxolane reactant may be introduced into the polymer by reacting 3,4-epoxy-1-butene in a ketone reaction solvent. The structure and composition of the product copolymer are controlled by both the sequence and conditions of the reaction. Products of the present invention can be cast as clear films and can also be used as reactive polymers.

Abstract: Copolymers are produced when a 4-vinyl-1,3 dioxolane monomer is copolymerized with an imidized maleic anhydride (for example, maleimide) monomer in the presence of a free radical initiator. Alternatively, a maleamic acid or maleimide functionality may be introduced into a copolymer containing a 4-vinyl-1,3 dioxolane and maleic anhydride by introducing a primary amine into the reaction mixture. Also, the dioxolane reactant may be introduced into the polymer by reacting 3,4-epoxy-1-butene in a ketone reaction solvent. The structure and composition of the product copolymer are controlled by both the sequence and conditions of the reaction. Products of the present invention can be cast as clear films and can also be used as reactive polymers.

Abstract: Copolymers are produced when a 4-vinyl-1,3-dioxolane monomer is copolymerized with an imidized maleic anhydride (for example, maleimide) monomer in the presence of a free radical initiator. Alternatively, a maleamic acid or maleimide functionality may be introduced into a copolymer containing a 4-vinyl-1,3-dioxolane and maleic anhydride by introducing a primary amine into the reaction mixture. Also, the dioxolane reactant may be introduced into the polymer by reacting 3,4-epoxy-1-butene in a ketone reaction solvent. The structure and composition of the product copolymer are controlled by both the sequence and conditions of the reaction. Products of this invention can be cast as clear films and can also be used as reactive polymers.

Abstract: Copolymers are produced when a 3,4-epoxy-1-butene monomer is copolymerized with a maleimide monomer in the presence of a free radical initiator. The copolymerization involves both 1,2-propagation and 1,4-propagation of 3,4-epoxy-1-butene. Products of this invention can be cast as clear films and can also be used as reactive polymers.

Abstract: Copolymers are produced when a 4-vinyl-1,3-dioxolane monomer is copolymerized with an imidized maleic anhydride (for example, maleimide) monomer in the presence of a free radical initiator. Alternatively, a maleamic acid or maleimide functionality may be introduced into a copolymer containing a 4-vinyl-1,3-dioxolane and maleic anhydride by introducing a primary amine into the reaction mixture. Also, the dioxolane reactant may be introduced into the polymer by reacting 3,4-epoxy-1-butene in a ketone reaction solvent. The structure and composition of the product copolymer are controlled by both the sequence and conditions of the reaction. Products of this invention can be cast as clear films and can also be used as reactive polymers.

Abstract: Copolymers are produced when a 4-vinyl-1,3 dioxolane monomer is copolymerized with an imidized maleic anhydride (for example, maleimide) monomer in the presence of a free radical initiator. Alternatively, a maleamic acid or maleimide functionally may be introduced into a copolymer containing a 4-vinyl-1,3 dioxolane and maleic anhydride by introducing a primary amine into the reaction mixture. Also, the dioxolane reactant may be introduced into the polymer by reacting 3,4-epoxy-1-butene in a ketone reaction solvent. The structure and composition of the product copolymer are controlled by both the sequence and conditions of the reaction. Products of the present invention can be cast as clear films and can also be used as reactive polymers.