Use of dispersion powder compositions containing a vinylaromatic-diene base polymer stabilized with protective colloid in self-leveling flooring fillers and screeding materials

摘要

Dispersion powder compositions (DPC) contain: (a) a base polymer of the vinylaromatic/1,3-diene type, (b) 2-25 wt% (based on a) protective colloid(s), (c) 3-30 wt% (based on total polymer components) fine antiblocking additive, and (d) 0.1-10 wt% (based on a) other additives are used in self-leveling flooring fillers and screeds. An Independent claim is also included for a process for the production of self-leveling coatings for leveling, compensating and smoothing floors by pouring, spreading and drying an aqueous screeding material (ASM) to form a layer with a thickness of 0.5-30 mm, in which the ASM comprises (dry weights) 0.5-10 wt% DPC as above, 5-80 wt% inorganic, hydraulic binder and 5-80 wt% inorganic fillers.