MODIFIELD CARBONATES FOR IMPROVED POWDER TRANSPORTATION, DRY-BLEND STABILITY, AND POLYMER FILING

摘要

A blended functional filler composition for use with a vinyl chloride-based polymeric resin may include a treated alkali earth metal carbonate and an untreated alkali earth metal carbonate. A surface treatment of the treated alkali earth metal carbonate includes at least a monolayer concentration of the surface treatment. A method of forming a filled vinyl chloride-based polymer article may include mixing a vinyl chloride-based polymeric resin with a filler composition and forming a polymer article from the mixture. The filler composition may include a blend of a treated alkali earth metal carbonate and an untreated alkali earth metal carbonate.