Polyurethane Prepolymer（PPU）

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 prepolymer is a reactive intermediate containing carbamate groups in the skeleton obtained by the reaction of polyisocyanate and polyol.

Polyurethane prepolymer is widely used in many fields such as polyurethane adhesive, coating, elastomer, foam and fiber.