POLYURETHANE is validvalid

any of various polymers consisting of organic units joined by NHCOO linkages

173,026 of 196,601 in NWL2023·also valid in CSW24

any of various polymers used esp. in flexible and rigid foams, elastomers, and resins, also POLYURETHAN

184,988 of 280,887 in CSW24·also valid in NWL2023

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