Abstract: A method of processing a polyester composition without changing the intrinsic viscosity of the polyester polymer by more than 0.025 dL/g such as injection molding a PET resin to form a bottle perform and blow molding a container from the bottle preform.

Abstract: A polyethylene terephthalate and/or co-polyester composition containing one or more bisphenols. A method of making the composition, PET bottle preforms produced from the composition, a method of making a bottle by stretch-blow molding the composition and/or a preform thereof, bottles made from the composition, and a method of reducing the ingress and egress of gases through a film made from the composition.

Abstract: A process for producing compositions having improved gas barrier properties, and compositions containing a polyester resin and one or more of another thermoplastic resin and a filler, and may be used to form containers that exhibit improved resistance to gas permeation.

Abstract: A method of processing a polyester composition without changing the intrinsic viscosity of the polyester polymer by more than 0.025 dL/g such as injection molding a PET resin to form a bottle perform and blow molding a container from the bottle preform.

Abstract: A process for producing compositions having improved gas barrier properties, and compositions containing a polyester resin and one or more of another thermoplastic resin and a filler, and may be used to form containers that exhibit improved resistance to gas permeation.

Abstract: A process for producing compositions having improved gas barrier properties, and compositions containing a polyester resin and one or more of another thermoplastic resin and a filler, and may be used to form containers that exhibit improved resistance to gas permeation.

Abstract: The invention provides UV-barrier formulations which result in products which effectively resist the transmission of ultraviolet light therethrough. The invention also provides UV-barrier formulations which result in products with improved resistance to ultraviolet light. In particular, the invention provides UV barrier formulations for polyester resins that have improved resistance to ultraviolet radiation, and significantly reduce ultraviolet light transmission in the resulting resin products. The invention also provides products and manufacturing processes based on the above formulations.