| abstract |
A UV-thickening thermally conductive silicone grease composition: which has (A) an organopolysiloxane, the viscosity at 25°C of which is 50-100,000 mPa∙s and which contains at least one alkenyl group in a single molecule, (B) an organohydrogen polysiloxane, a single molecule of which contains a hydrogen atom directly bonded to at least two silicon atoms, (C) a photoactive platinum complex curing catalyst, and (D) a thermally conductive filler with a thermal conductivity of at least 10 W/m∙°C as essential components; and the viscosity at 25°C of which is 30-800 Pa∙s when measured at a 10 rpm rotation rate using a Malcom viscometer. For this UV-thickening thermally conductive silicone grease composition, shape-retaining properties at low viscosity are high, deep curing properties can be adjusted using the UV irradiation dose, and the composition after being thickened by irradiating UV rays does not become hard but sets so as to be malleable. |