PHOSPHITES

 

Phosphites are secondary antioxidants that function by the decomposition of hydroperoxide intermediates in the oxidation process. They most effective at high temperatures and provide excellent protection against degradation during melt processing operations. As processing stabilizers, phosphites serve to minimize changes in melt viscosity and reduce discoloration. Some products (such as PEP-36A) also contribute to the long-term thermal stability and light stability of plastics.

Combinations of phosphites with hindered phenols often show a strongly synergistic performance. These systems represent the state-of-the-art for the melt process stabilization of many types of plastics.

Amfine offers a diverse range of solid and liquid phosphite process stabilizers for plastics.

 

Solid Phosphites

2112
General purpose aryl phosphite process stabilizer for polyolefins and other plastics

HP-10
High performance alkyl-aryl phosphite process stabilizer for polyolefins, styrenic polymers, and engineering plastics

PEP-8
Alkyl phosphite process stabilizer for polyolefins, styrenic polymers, and other plastics

PEP-36A
High performance alkyl-aryl phosphite process stabilizer for polyolefins, styrenic polymers, and engineering plastics

 

Liquid Phosphites

1178
General purpose liquid aryl phosphite process stabilizer for polyolefins, styrenic polymers, and other plastics

135A
Liquid alkyl-aryl phosphite process stabilizer for styrenic polymers, engineering plastics, and PVC

1500
Liquid alkyl-aryl phosphite process stabilizer for styrenic polymers, PVC, and other plastics

3010
Liquid alkyl phosphite process stabilizer for engineering plastics, polyurethanes, and PVC

C
Liquid alkyl-aryl phosphite process stabilizer for styrenic polymers, engineering plastics, and PVC

TPP
Liquid aryl phosphite process stabilizer for polyurethanes, styrenic polymers, PVC, and elastomers

 

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