General Electric Company

Michael Leslie Todt

Anil Raj Duggal

Lionel M Levinson

John William Carbone

Andrew Jay Salem

James Alfred Day

Sai-Pei Ting

David Ernest Rodrigues

Inclusion of relatively small amounts of organic ionic species, such as calcium stearate, in the preparation of an electrically conductive polymer composite composition provides a composition having enhanced electrical properties relative to the composite composition lacking the added organic ionic species. As a result of this enhancement, normally insulating materials which rely upon a conductive filler to render them electrically conductive, can be made to achieve a given level of conductivity using less of the conductive filler than would otherwise be required. As a result, the adverse effects of the conductive filler on the polymer's physical properties can be minimized while maintaining a high level of electrical conductivity.

Electrically conductive polymer composite compositions, method for making, and method for electrical conductivity enhancement

A current limiting device comprises at least two electrodes; an electrically conducting composite material between the electrodes; interfaces between the electrodes and electrically conducting composite material; an inhomogeneous distribution of resistance at the interfaces whereby, during a high current event, adiabatic resistive heating at the interfaces causes rapid thermal expansion and vaporization and at least a partial physical separation at the interfaces; and a structure for exerting compressive pressure on the electrically conducting composite material, wherein the electrically conducting composite material comprises at least one polymer matrix and at least one conductive filler.

Current limiting device with conductive composite material and method of manufacturing the conductive composite material and the current limiting device

A method for preparing rapidly crystallized polyesters from macrocyclic polyester oligomers comprising the step of contacting macrocyclic polyester oligomers, polymerization catalysts and nucleating agents.

Method for producing polyesters

Blends of metallic, preferably ferromagnetic, particles, macrocyclic oligomer compositions, especially poly(alkylene dicarboxylate) oligomers, and catalysts/initiators for polymerization of said macrocyclic oligomers are molded into magnets having high metal loadings, typically about 60-85% by volume. Compression molding of such blends can be conducted at relatively low pressures.

Growing community of inventors

Schenectady, NY, United States of America

Michael Leslie Todt