CYCLIC OLEFIN POLYMER COMPOSITES HAVING A HIGH DIELECTRIC CONSTANT

摘要

Polymeric compositions having a high dielectric constant and low loss tangent are made from a cyclic olefin polymer, a ceramic having a high dielectric constant and a low loss tangent, and optionally an added reinforcing filler. The preferred ceramic is strontium titanate. The compositions have a dielectric constant of at least about 4. When mica, alumina, or magnesium titanate is used as an added reinforcing filler, the coefficient of thermal expansion diminishes significantly.