Use: Aktiplast M has a viscosity reducing effect in natural and isoprene rubber and their compounds. In a temperature range from 60-150 °C, the reduction of viscosity is obtained by a combination of specially selected fatty acids in zinc salts with a metal complex as activator. The natural chain length distribution of rubber, such as it is shown in a mole weight distribution curve, is largely maintained. Only the part of the rubber with a higher molecular weight is reduced. The mastication effect of Aktiplast M is stopped by the addition of carbon black or fillers. A special advantage of Aktiplast M is the saving of one mixing step, as there is no storage time of the masticated rubber required. As a result of the improved solubility of the fatty acid zinc salts in the rubber Aktiplast M has a favorable effect on the filler dispersion. The incorporation of the fillers is accelerated. Mixing energy is reduced, and mixing time can be saved.

Application: Processing promoter reducing viscosity and dispersing fillers. For tires, rubber-to-metal bonding, primarily for compounds based on natural rubber and rubber blends

Information provided by Lanxess.