Polyurethane vs. Polyurea

Polyurethanenoun

(organic chemistry) Any of various polymeric resins containing urethane links; used in very many industrial and domestic applications.

Polyurethanenoun

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.

Polyurethanenoun

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

Polyurethanenoun

a synthetic resin in which the polymer units are linked by urethane groups, used chiefly as constituents of paints, varnishes, adhesives, and foams

Polyurethaneverb

coat with polyurethane paint or varnish

Polyurethane

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.

Polyureanoun

(chemistry) Any of a class of polymeric elastomers whose repeat unit is a substituted urea

Polyurea

Polyurea is a type of elastomer that is derived from the reaction product of an isocyanate component and a synthetic resin blend component through step-growth polymerization. The isocyanate can be aromatic or aliphatic in nature.