2821  Plastics Materials, Synthetic Resins, and Nonvulcanizable Elastomers

Establishments primarily engaged in manufacturing synthetic resins,
plastics materials, and nonvulcanizable elastomers. Important products
of this industry include: cellulose plastics materials; phenolic and other
tar acid resins; urea and melamine resins; vinyl resins; styrene resins;
alkyd resins; acrylic resins; polyethylene resins; polypropylene resins;
rosin modified resins; coumarone-indene and petroleum polymer resins;
miscellaneous resins, including polyamide resins, silicones,
polyisobutylenes, polyesters, polycarbonate resins, acetal resins, and
fluorohydrocarbon resins; and casein plastics.  Establishments primarily
engaged in manufacturing fabricated plastics products or plastics film,
sheet, rod, nontextile monofilaments and regenerated cellulose products,
and vulcanized fiber are classified in industry group 308, whether from
purchased resins or from resins produced in the same plant. Establishments
primarily engaged in compounding purchased resins are classified in
industry 3087.  Establishments primarily manufacturing adhesives are
classified in industry 2891.