Antioxidant of natural rubber, styrene butadiene rubber, nitrile butadiene rubber, etc. It has protective effect on hot oxygen flexion and cracking. This product can also be used as an antioxidant of polyolefin and lubricating oil. It has outstanding heat resistance in the application of neoprene gum. If used with antioxidant TPPD. Better heat resistance. It can also reduce the plasticity of unvulcanized chloroprene adhesive and reduce the shrinkage rate when calendering, thus helping to adjust the size of semi-finished products and improve the stability of chloroprene adhesive in storage and transportation. Mainly used in the manufacture of tires, inner tubes, cables, rubber shoes, rubber floors, washers, hot rings and sponge products.