Continental PET Technologies

S. L. Schmidt, B. Lynch, and A. S. Agrawal. Process for making PEN/PET blends and transparent articles therefrom. US Patent 6 586 558, assigned to Continental PET Technologies, Inc. (Florence, KY), July 1,2003. 

Six major breweries have successfully bottled beer in plastic containers Miller, Heineken, Bass, Feldschlossen. Carlton United, and Carlsberg. The bottle for Miller Lite was developed by Continental PET Technologies, using five layers, with a PA (nylon MXD6) barrier layer less than 5 wt% of the container. In Australia, Carlton United introduced a monolayer bottle coated with PPG Industries Bairocade coating. 

A variety of processes have received official non-objection from the U.S. FDA for use of mechanically recycled PET in food packaging. The earliest processes relied on insensitive uses or on imposition of a physical barrier between the food and the recycled plastic. For example, the first approval was in 1989 for use of recycled PET in egg cartons. Continental PET Technologies received approval in 1993 for a coinjected multilayer PET bottle with a l-rml (O.OOl-in) layer of virgin PET between the core layer of recycled PET and the container contents. The approach was used initially for soft drink bottles in Australia, New Zealand, and Switzerland. In 1994 and 1995, Wellman, Inc., obtained approval for use of mechanically recycled PET in multilayer packaging for a variety of food products. ... 

Kerins GJ, et al. Method for producing a hot finable, collapse-resistant polyester container without the need to utilize heat set process techniques and/or non-conventional container geometries. US Patent 4,665,682 assigned to Continental PET Technologies issued May 19, 1987. 

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