IRGANOX® 5057 is a 100 % active, liquid aromatic amine antioxidant for various polymers, including polyols and polyurethane.

Benzenamine, N-phenyl-, reaction products with 2,4,4-trimethylpentene

IRGANOX 5057 is used in combination with hindered phenols, such IRGANOX 1135, as an excellent co-stabilizer in polyurethane foams. In the manufacture of flexible polyurethane slabstock foams, core discoloration or scorching results from the exothermic reaction of diisocyanate with polyol and diisocyanate with water. Proper stabilization of the polyol protects against oxidation during storage and transport of the polyol, as well as scorch protection during foaming. IRGANOX 5057 can also be used in other polymers such as elastomers and adhesives, and other organic substrates.

Features & Benefits

IRGANOX 5057 is highly efficient and prevents, even at low concentrations, thermal degradation of polymers. IRGANOX 5057, when used in combination with a phenolic antioxidant, such as the liquid IRGANOX 1135, is very active in preventing scorching of polyurethane flexible foams.

The low volatility and liquid nature of IRGANOX 5057 make it ideally suited to many substrates and applications. IRGANOX 5057 is produced to contain a very low amount residual of diphenylamine, to address customer needs in some PUR markets.

Properties