Polymers containing many repeating carbamate groups (- NHCOO-) on the molecular chains of the polymer structure, generally are named as polyurethane. Polyurethane is a polymer formed by the reaction of polyisocyanate and polyether or polyester polyol under certain conditions.

Polyurethane elastomer is a kind of polymer material from rubber to plastic.

Polyurethane elastomer can be divided into thermoplastic polyurethane（TPU）, casting polyurethane（CPU） and milliable polyurethane (MPU) according to the processing method of products.

The elastomer has a good appearance texture, mild touch, easy to color, uniform tinge, stable. Used as drum, conveyor belt, hose, car parts, sole, synthetic leather, wire and cable, medical artificial organs and so on.