Abstract: Disclosed are polyester adhesive compositions which exhibit increased melt viscosity and improved adhesion comprised of residues of terephthalic acid, ethylene glycol and diethylene glycol and having reacted therewith or copolymerized therein the residue of a phosphite ester compound and optionally containing a phenolic antioxidant. Also disclosed are articles coated with the polyester compositions and bonded laminate articles based on the compositions.

Abstract: Disclosed are polyester adhesive compositions which exhibit increased melt viscosity and improved adhesion comprised of residues of terephthalic acid, ethylene glycol and diethylene glycol and having reacted therewith or copolymerized therein the residue of a phosphite ester compound and optionally containing a phenolic antioxidant. Also disclosed are articles coated with the polyester compositions and bonded laminate articles based on the compositions.

Abstract: Disclosed are polyester adhesive compositions which exhibit increased melt viscosity and improved adhesion comprised of residues of terephthalic acid, ethylene glycol and diethylene glycol and having reacted therewith or copolymerized therein the residue of a phosphite ester compound and optionally containing a phenolic antioxidant. Also disclosed are articles coated with the polyester compositions and bonded laminate articles based on the compositions.

Abstract: Disclosed is a process for preparation of a polyarylate having a degree of polymerization of at least 50 by polymerizing an admixture comprised of 4-dialkylaminopyridine, an acid anhydride, bisphenol-A and a mixture of isophthalic acid and terephthalic acid by the steps of(1) subjecting the admixture to a pressure in the range of 500 to 1400 mm of Hg and a temperature in the range of 20.degree. to 150.degree. C. while maintaining a degree of polymerization of substantially 1.0,(2) subjecting the admixture to a pressure in the range of 500 to 1400 mm of Hg and a temperature in the range of 285.degree. to 350.degree. C. to achieve a degree of polymerization in the range of 2 to 7,(3) subjecting the admixture to a pressure in the range of 100 to 400 mm of Hg and a temperature in the range of 285.degree. to 350.degree. C. to achieve a degree of polymerization in the range of 7 to 15,(4) subjecting the admixture to a pressure in the range of 100 to 400 mm of Hg and a temperature in the range of 330.degree. to 400.

Abstract: A process for preparing a polyarylate by heating in the melt phase in the presence of a 4-dialkylaminopyridine, an acid anhydride which is in the range of stoichiometric amount to 25% molar excess, bisphenol-A and a dicarboxylic acid selected from the group consisting of isophthalic acid and mixtures of isophthalic acid and terephthalic acid wherein the ratio of isophthalic acid to terephthalic acid is in the range of 100:0 to 25:75.

Abstract: Non-blocking, hemocompatible, thermoplastic, fluorinated polyetherurethanes and a method for their preparation from fluorinated polyether glycols, isocyanates, chain extenders and a non-fluorinated polyol. The method includes two steps in which the fluorinated glycol is reacted initially with the diisocyanate to give a prepolymer having terminal isocyanate groups, and the prepolymer is then reacted with the extender and non-fluorinated polyol. Medical devices are fabricated from the fluorinated polyetherurethane.

Abstract: Non-blocking, hemocompatible, thermoplastic, fluorinated polyetherurethanes and a method for their preparation from fluorinated polyether glycols, isocyanates, chain extenders and a non-fluorinated polyol. The method includes two steps in which the fluorinated glycol is reacted initially with the diisocyanate to give a prepolymer having terminal isocyanate groups, and the prepolymer is then reacted with the extender and non-fluorinated polyol. Medical devices are fabricated from the fluorinated polyetherurethane.