STABILISER SYSTEM COMPRISING HYDROXYACIDS

摘要

The invention relates to a stabiliser system and the use thereof in the processing of vinyl chloride (co)polymers, said stabiliser system comprising at least the salt of specific hydroxyacid and one or more colour stabilisers. Stabilised PVC, obtainable by compounding said stabiliser system into said vinyl chloride (co)polymer, shows good colour and heat stability, while preferred stabiliser systems also are allowed to be used in food-grade, including drinking water-grade, PVC applications.