Use of aromatic hydroxysulphonic acid salts as crystallisation accelerators for polyesters

摘要

A process for the injection moulding of polyesters having improved crystallisation, in which a compound containing at least one benzene, naphthalene and/or anthracene ring, at least one alkali metal sulphonate salt group and at least one phenolic alkali metal hydroxylate salt group are incorporated as crystallisation accelerators into the polyester before moulding.