PARTICULATE POLY(PHENYLENE ETHER)-CONTAINING VARNISH COMPOSITION, COMPOSITE AND LAMINATE PREPARED THEREFROM, AND METHOD OF FORMING COMPOSITE

摘要

A curable composition includes specific amounts of a ketone, a curable component, and particulate poly(phenylene ether) having a mean particle size of 3 to 12 micrometers and a particle size relative standard deviation of 20 to 60 percent. The composition has a low viscosity that facilitates wetting of reinforcing structures, and composites formed from the composition and a reinforcing structure cure to form a dielectric material with a low dielectric constant and loss tangent.