Irganox® 1135

Irganox® 1135 by BASF is benzenepropanoic acid, 3,5-bis (1,1-dimethyl-ethyl)-4-hydroxy-C7-C9 branched alkyl esters. It is 100% active, sterically hindered phenolic primary antioxidant for processing and long-term thermal stabilization. Irganox® 1135 prevents the formation of peroxides in the polyol during storage, and transport, and further protects against scorching during foaming. Its low volatility and excellent compatibility helps to prevent fogging in automotive applications and to prevent staining of textiles (furniture, carpeting and head rests). It is used in forced air cooling processes for polyurethane and for the stabilization of flexible slabstock foams. Recommended usage level is between 0.15-0.5%.