abstract |
Disclosed is a liquid crystal polyester composition suitable as a material for forming a liquid crystal polyester film having excellent thermal conductivity. In a liquid crystal polyester composition comprising a liquid crystal polyester, a solvent, and a heat conductive filler, the content of the heat conductive filler is 50 to 90% by volume with respect to the sum of the liquid crystal polyester and the heat conductive filler, and As a heat conductive filler, 0 to 20% by volume of a first heat conductive filler having a volume average particle diameter of 0.1 μm or more and less than 1.0 μm, and a second heat conduction having a volume average particle diameter of 1.0 μm or more and less than 5.0 μm. A third heat conductive filler having a volume of 5 to 40% by volume and a volume average particle size of 5.0 μm to 30.0 μm is used at a ratio of 40 to 90% by volume. [Selection figure] None |