Polyvinyl halide stabiliser granulate prodn - by injecting molten waxy component into stabiliser dispersion under pressure

摘要

In granulation of stabilisers for vinyl polymers contg. halogen by dispersing waxy, low-melting components in aqs. dispersion of stabiliser, removing dispersion medium and drying, molten waxy component is injected under pressure into aqs. dispersion. Process is technically simple and gives free running, non-dusting granulate, which can be stored without unmixing.