Process stabilization of ABS with aryl phosphines

摘要

The use of arylphosphines of formula P(Ar)3 (I) as processing stabilisers for ABS moulding materials is claimed, in which Ar = 6-18C aryl (optionally with up to 3 substituents selected from Cl, Br, F, 1-12C alkyl or alkoxy, 7-9C aralkyl, 1-12C alkoxycarbonyl, carbaldehyde, carboxyl or sulphonic acid), or a furan or thiophene residue.