Concentrating on phosphite antioxidants for 30 years

CHPHOS® THOP Tetraphenyl dipropyleneglycol diphosphite

Product Introduction CAS No.:80584-85-6
Molecular weight:566
Structural formula:
Quality index Appearance:Colorless Transparent Liquid
Refractive index(25℃):1.5570-1.5620
Package 200KG Drum
Application PVC、ABS、PU、PC、epoxy resin
Application Description A high phosphorus content aromatic alkyl phosphite antioxidant widely used in polyurethane, resin synthesis, PVC, ABS and other fields, providing excellent thermal stability and color modification. As an efficient auxiliary stabilizer and chelator used in hard and soft PVC materials, it provides brighter and more uniform colors, increases transparency, and improves the thermal stability of PVC. It can improve the thermal stability and long-term stability of polyurethane products, effectively improve the core burning problem caused by high temperature during the polyurethane foaming process, and have a good inhibitory effect on phenolic yellowing and NOX yellowing of polyurethane products. Suggested dosage: 0.1~2.0%

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