| abstract |
The invention relates to a process for preparing a dispersion of magnetizable particles in polyol by mechanical mixing of the magnetizable particles at a temperature in the range of from 80 to 260°C, preferably 100 to 220°C, more preferably 160 to 200°C with a polyol selected from the group consisting of polyesterols or polyether ester polyols having an acid number in the range of from 0.1 to 3.0. |