styrene vs polyvinyl resin

styrene and polyvinyl resin both are nouns.

Word	Noun	Adjective	Verb	Adverb
styrene	Yes	No	No	No
polyvinyl resin	Yes	No	No	No

As nouns, polyvinyl resin is a hypernym of styrene; that is, polyvinyl resin is a word with a broader meaning than styrene:

styrene: a colorless oily liquid; the monomer for polystyrene
polyvinyl resin: a thermoplastic derived by polymerization from compounds containing the vinyl group

Other hypernyms of styrene include vinyl polymer, vinyl resin.

styrene (noun)	polyvinyl resin (noun)
a colorless oily liquid; the monomer for polystyrene	a thermoplastic derived by polymerization from compounds containing the vinyl group