| abstract |
The present invention discloses a resin composition, comprising an unsaturated thermosetting modified polyphenylether resin and an MQ organosilicon resin containing unsaturated double bonds and having a three-dimensional network structure and hydrolytically condensed from monofunctional siloxane unit (M unit) and tetrafunctional silica unit (Q unit). The present invention further discloses a high-frequency circuit substrate prepared from the aforesaid resin composition and the uses of the aforesaid resin composition in the art. The high frequency circuit substrate of the present invention has a high glass transition temperature, a high thermal decomposition temperature, a high interstratified adhesive force, a low dielectric constant and a low dielectric loss tangent, and are very suitable as the circuit substrates of high frequency electronic equipments. |