Temperature-Sensitive Active Ingredient Compositions for Reducing the Density of Plastics

摘要

The invention relates to an active ingredient composition which has a high content in thermosensitive foaming agents and one or more polyolefin resins, the portion which is larger in quantity being a metallocene and optionally the remaining resins being polar or nonpolar nonmetallocene polyolefin resins. All polyolefin resins add up to at least 10% by weight of the formulation and have a melting point between 80 and 170� C. The reduced dust active ingredient composition according to the invention is used for the masterbatch production of foamed plastics.