. "polyethylene, including highdensity polyethylene, low density polyethylene, linear low density polyethylene, and linear ultra low density polyethylene, polypropylene, and polybutylenes; vinyl copolymers, such as polyvinyl chlorides, both plasticized and unplasticized, and polyvinylacetates; olefinic copolymers, such as ethylene/methacrylate copolymers" . . . .