US 7,923,497 B2 · Antiferroelectric polymer composites, methods of manufacture thereof, and articles comprising the same

Abstract

Disclosed herein is a composition comprising a composition comprising a polymeric material; and a ceramic antiferroelectric particle. Disclosed herein too is a method of tuning a dielectric constant of a composition comprising subjecting a composition comprising a polymeric material and a ceramic antiferroelectric particle to a biasing electric field; and changing the dielectric constant of the composition. Disclosed herein too is a method comprising blending a polymeric material with ceramic antiferroelectric particles to form a composition. Disclosed herein too is a method comprising blending a polymeric material with ceramic antiferroelectric particles to form a composition; applying an electrical field to the composition; and reorienting the ceramic antiferroelectric particles.

Claims14

Dependent claims

A composition comprising:

a polymeric material;
and
ceramic antiferroelectric particles having a particle size of from about 10 nanometers to about 500 nanometers;
wherein the antiferroelectric particles comprise PbHfO3, PbLa(ZrSnTi)O3, PbNb(ZrSnTi)O3, lead scandium niobium titanate (PSNT), lead lutetium niobium titanate (PLuNT), NaNbO3, (K,Na)(Nb,Ta)O3, KNbO3, BaZrO3, Na0.25K0.25Bi0.5TiO3, Ag(Ta,Nb)O3, K0.5Bi0.5TiO3—BaTiO3, or a combination of these and wherein the ceramic antiferroelectric particles are present in an amount of greater than about 10 wt % of the total weight of the composition.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

11/286,062Filed 23 Nov 2005

Published

US 2007/0117913 A124 May 2007

Granted

12 Apr 2011

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

H01B 3/006
Inhomogeneous material in general: other inhomogeneous material
C08K 3/11
Metal compounds: compounds containing metals of Groups 4 to 10 or of Groups 14 to 16 of the Periodic Table
C08K 3/22
Oxides; Hydroxides: of metals
H01G 4/206
Using combinations of dielectrics from more than one of groups H01G4/02 - H01G4/06: inorganic and synthetic material

Antiferroelectric polymer composites, methods of manufacture thereof, and articles comprising the same

Life of this patent

Antiferroelectric polymer composites, methods of manufacture thereof, and articles comprising the same

Life of this patent

Abstract

Claims14