METHOD FOR IMPROVING SOOT DISPERSION

摘要

The invention relates to a master batch consisting of pigment and mold release agent, characterized in that the mold release agent is selected from the group consisting of low-molecular-weight polyolefin oils, low-molecular-weight polyolefin waxes, montan waxes, and aliphatic or aromatic carboxylic acid esters of fatty acids and/or fatty alcohols, wherein the pigment content of the master batch is 3 to 70 wt % relative to the total weight of the master batch. Said master batch is suitable for producing polymer compositions having improved pigment dispersion.