Layered mixed-metal phosphonates for high dielectric...

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...

Reexamination Certificate

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C524S132000, C534S015000, C556S019000, C556S174000, C562S008000

Reexamination Certificate

active

08080600

ABSTRACT:
Mixed metal phosphonates are generally provided. The mixed metal phosphonate can generally have the composition: AB(RPO3)3, where A is Mg2+, Ca2+, Sr2+, Ba2+, Pb2+, La3+, Co2+, Mn2+, Fe2+, or combinations thereof; B is Ti4+, Zr4+, Al3+, or combinations thereof; and R is an organic group (e.g., aryl group, an alkyl group, an alkenyl group, etc.). The mixed metal phosphonate can be combined with a polymeric material to form a polymeric film. Methods of making the mixed metal phosphonate by combining and reacting a metal oxide and an organophosphonic acid are also provided.

REFERENCES:
Cao et al. “Formation of quantum-size semiconductor particles in a layered metal phosphonate host lattice”, Chem. Mater. 1991, 3, 149-156.
Barber, et al., “new Layered Mixed Metal Phosphonates for High Dielectric#Polymer Composite Materials” Chem. Mater., 2009, 21(7), pp. 1303-1310.
Barber, et al., “Polymer Composite and nanocomposite Dielectric Material for Pulse Power Energy Storage”Materials, 2009, 2, pp. 1697-1733.

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