Additives for Polyurethanes
Polyurethanes are mostly used as flexible molded foams, flexible slabstock foams, rigid microcellular foams (RIM-PUR), and thermoplastic polyurethanes (T-PUR).
The oxidative stability of polyurethanes is dependent on their structure, especially the chemical structure of the polyol. In the manufacture of PUR foams, a large amount of heat is released by the reaction of the polyol with the isocyanate.
Therefore, suitable antioxidants are necessary to prevent uncontrolled oxidative degradation.
BASF offers a wide range of products such as phenolic antioxidants and aromatic amines to prevent discoloration and scorching upon storage after foaming.
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