ABSTRACT

Manufacturers: There are over 200 major manufacturers of general purpose polymers and numerous other manufacturers of specialty polymers.

Processors: Some companies manufacture their own polymeric materials for subsequent processing, but the majority purchase the necessary polymeric materials from other companies. Processors may specialize in the use of selected polymers, such as nylons and polycarbonates, or focus on particular techniques of processing, such as coatings, lms, sheets, laminates, and bulk molded and reinforced plastics.