USA As Represented by Secretary of the Navy

Robert B Fox

Oh-Kil Kim

Kenneth Joseph Wynne

Alan W Ellinthorpe

Polymer materials having a low Young's modulus, a low dielectric constant, and a high apparent piezoelectric response when subjected to a high direct bias voltage and a superimposed alternating voltage, used as the active element in an underwater acoustic signal projector of a sonar system.

Electrostrictive acoustic projector and polymers used therein

An electrically conductive composition comprises a poly (vinylacetal) polymer, a TCNQ salt uniformity dispersed throughout the polymer, and optionally a plasticizer.

Electrically conductive polymeric compositions

An electrically conductive polymeric composition is fabricated by dispers polymeric ether complexes of TCNQ salts within a flexible, thermoplastic polymer matrix. The compositions form flexible, homogeneous, films which exhibit substantially superior properties over currently available TCNQ salt based systems.

Flexible semiconductive polymers

Electrically conductive polymeric compositions are obtained by incorporat crown ether complexes of TCNQ salts in a polymer selected from the class consisting of polycarbonates and poly(alkyl alkacrylates). The compositions can be formed into semiconductive films useful in the fabrication of e.g. thermoresistors and electronic devices.

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Bethesda, MD, United States of America

Robert B Fox