Patent ID: 7678853
Filing Date: 2010-03-16
Classification: C08K,C08L,H01Q

Abstract:
1. A highly dielectric elastomer composition comprising an elastomer and a highly dielectric ceramic powder mixed with said elastomer, which is used as a material of an electronic part which treats electric signals having a frequency of not less than 100 MHz wherein the highly dielectric ceramic powder has a temperature coefficient α (unit: 1/° C.) of a dielectric constant of said ceramic powder on 25° C. standard ranging from −200×10 −6 to 100×10 −6 over a temperature range from −40° C. to 100° C. wherein said highly dielectric ceramic powder is a barium titanate.neodymium ceramic powder, wherein said elastomer contains a non-polar olefin unit as a constituent unit thereof, wherein at a frequency of 1 GHz and a temperature of 25° C., a dielectric constant of said highly dielectric elastomer composition is not less than seven and a dielectric loss tangent thereof is not more than 0.01.