Patent ID: 8513345

Claim:
A resin composition comprising a thermoplastic or thermosetting resin and an exoergic filler composition containing: (a) 1 to 50 volume % of a needle-shaped zinc oxide having an average long diameter of 0.1 to 10 μm, an average short diameter of 0.025 to 2.5 μm, aspect ratio defined by (average long diameter)/(average short diameter) of 4 or more and specific surface area according to BET method of 50 m 2 /g or less, and (b) 50 to 99 volume % of one or more other exoergic fillers each having a shape and particle size different from the needle-shaped zinc oxide; wherein the sum of (a) and (b) totals 100 volume % of the exoergic filler composition; and wherein the resin composition contains 30 to 90 volume % of the exoergic filler composition relative to the total solid matter of the composition.