Pulverförmige, modifizierte Füllstoffe enthaltende Kautschukpulver, Verfahren zu ihrer Herstellung und Verwendung

摘要

The invention relates to fine particled powdery rubbers containing loading material. Said rubbers remain flowable after mechanical loading. The invention also relates to a method for the production thereof, whereby the rubber powder is obtained in two stages of precipitation. The invention further relates to the use of said powders in the production of vulcanizable rubber mixtures. The loading materials used such as precipitated silicic acids or carbon blacks known in the field of rubber are, especially with regard to said silicic acids, modified on the surface by means of organosilicon compounds.