| 释义 |
poly·urethane
noun
or poly·urethan \|pälē, -lə̇+\
Etymology: International Scientific Vocabulary poly- + urethane, urethan
: any of various polymers that contain −NHCOO− linkages of the type found in carbamic esters, that are obtained by reaction of a di- or tri-isocyanate ester usually with a polyester or a glycol (as a polyglycol), and that are used chiefly in making flexible and rigid foams, elastomers, and resins for coatings and adhesives |