Compositions containing thermally conductive fillers

A composition, comprising:

• a thermoplastic polymer;
• a thermally conductive filler package comprising thermally conductive, electrically insulative filler particles having a thermal conductivity of at least 5 W/m·K (measured according to ASTM D7984) and a volume resistivity of at least 10 Ω·m (measured according to ASTM D257) and present in an amount of at least 50% by volume based on total volume of the thermally conductive filler package;
• and
• a dispersant, different from the thermoplastic polymer, in an amount of 0.01% by volume to 20% by volume based on total volume of the composition;
• wherein the thermally conductive, electrically insulative filler particles comprise thermally stable filler particles,
• wherein the composition is substantially solvent-free, and
• wherein the composition has a viscosity of 1 Pa's to 750 Pa·s at a shear rate of 10·s−1 as measured by a MARS II rheometer at 80° C. using a cone plate with a diameter of 20 mm and an angle of 1°.