Abstract: In a thermoconductive composition containing wax, a substantially spherical boron nitride is added as a filler. The average particle size of the substantially spherical boron nitride is preferably from 20 to 100 ?m and the filling ratio is preferably from 10 to 30% by volume.

Abstract: A thermoconductive composition is described comprising: (a) 100 parts by weight of wax, (b) 10 to 1,000 parts by weight of the compound of formula (I) below: where, R1 and R2independently represent an alkyl group having 1 to 3 carbons, and n represents a value of 100 to 100,000, (c) 10 to 2,000 parts by weight of a thermoconductive filler and (d) 0 to 1,000 parts by weight of a softener. An article is also described comprising: (a) an exothermic component; (b) a heat radiator; and (c) the thermoconductive composition of claim 1 disposed between the exothermic component and the heat radiator.