prov:value
| - ylene oxides (PPO), modified PPOs, polystyrene, polysulfone, polytetrafluoroethylene, polyvinyl acetate, polyvinyl alcohol, polyvinyl halides such as polyvinyl chloride, polyvinyl chloride-vinyl acetate copolymer, polyvinyl pyrrolidone, polyvinylidene chloride, specialty polymers, and so forth.
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