(chemistry) A polymer (such as polyethylene) made by the polymerization of an olefin
(organic chemistry) Any of various polymeric resins containing urethane links; used in very many industrial and domestic applications.
(chemistry) A polyene
any polymer containing [-NH.CO.O-] linkages; such polymers are much used as the basis of light but rigid foams for packaging (polyurethane foam) and for hard coatings, as on floors.
A polyolefin is a type of polymer with the general formula (CH2CHR)n. They are derived from a handful of simple olefins (alkenes).
any of various polymers containing the urethane radical; a wide variety of synthetic forms are made and used as adhesives or plastics or paints or rubber
a synthetic resin in which the polymer units are linked by urethane groups, used chiefly as constituents of paints, varnishes, adhesives, and foams
‘five coats of polyurethane’; ‘polyurethanes serve a variety of uses’;
coat with polyurethane paint or varnish
‘the sanded and polyurethaned floorboards’;
Polyurethane (often abbreviated PUR and PU) is a polymer composed of organic units joined by carbamate (urethane) links. In contrast to other common polymers such as polyethylene and polystyrene, polyurethane is produced from a wide range of starting materials (monomers) and is therefore a class of polymers, rather than a distinct compound.