P3O1L1Y4U1R1E1T1H4A1N1E1S1
21 points
POLYURETHANES is validvalid
POLYURETHANE, any of various polymers consisting of organic units joined by NHCOO linkages
POLYURETHANE, any of various polymers used esp. in flexible and rigid foams, elastomers, and resins, also POLYURETHAN