METHOD FOR PRODUCING BATCH MATERIAL COMPRISING RENEWABLE RAW MATERIALS AND BITUMEN FOR ACOUSTIC DAMPING COMPOSITIONS

The invention is directed to a method of mixing at least one bitumen component B and at least one solid particulate cellulose-containing filler FW for a mixing time of ≥ 10 min at a mixing temperature of 100 - 180 °C, wherein the weight ratio of solid particulate cellulose-contain filler FW to bitumen B (FW / B) is between 6 : 1 and 1 : 1. The mixture has a low potential for absorbing humidity during storage and safeguards the ability of the cellulose-containing particles to contribute to a high loss factor in an acoustic damping material.The invention is also directed to use of the mixture in an acoustic damping material for damping of vibrations and noise in transportation vehicles and white goods, to a vibration and noise damping element comprising a damping layer composed of the acoustic damping material, to a method for applying a vibration and noise damping element to a noise emitting surface of a substrate, and to a vibration damped system comprising a substrate and the vibration and noise damping element bonded to a noise emitting surface of the substrate.