DPP72: is a polypropylene containing 80% super fine calcium carbonate. It is natural white with excellent disparity. It can be mixed with Poly propylene resin for extrusion, thermal forming, injection, etc. and It is easy to disperse with good compatibility. It has function as a modifier to improve heat resistance, flexural strength, size stability, and printability. It also reduces heat release from burning and therefore prevents further environmental pollution.