| http://www.w3.org/ns/prov#value | - The term "styrene resin as used herein includes by way of example, homopolymers such as polystyrene, poly-??-methylstyrene, and poly(chlorostyrene), the modified polystyrenes such as rubber modified polystyrenes, and styrene-containing copolymers such as styrene-chlorostyrene copolymers, styrene-bromostyrene copolymers, styrene-acrylonitrile copolymers, styrene-butadiene copolymers, styrene-acryl
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