USE OF STYRENE COPOLYMERS AND MALEIC ANHYDRIDE AS DISPERSING AGENTS AND / OR TREATING MINERAL FILLERS. THERMOPLASTIC COMPOSITIONS CONTAINING SAME

摘要

Use of copolymers of styrene and maleic anhydride with an average molecular weight of between 1000 and 3000 and more particularly between 1500 and 2000 as dispersing agent and / or treatment of basic or surface powdery inorganic fillers having free hydroxyl groups in resins thermoplastics, homopolymers without an aryl group with a carbon-only skeleton or copolymers without an aryl group and with a carbon and oxygen compound having an oxygen atom content not exceeding 22% by weight or mixtures thereof. BR/ Thermoplastic compositions charged, stable, fluid and homogeneous containing said agents and application of these compositions to the manufacture of plastic products.