Carbon chalcogenide macromolecular composition and process for p

Compositions – Electrically conductive or emissive compositions

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252518, 252521, 528373, 528378, H01B 100, H01B 106, C08G 7500

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active

051529300

ABSTRACT:
A carbon chalcogenide macromolecular composition prepared from carbon dichalcogenide and to a process for the preparation thereof. A carbon dichalcogenide, for example, carbon disulfide, in entrained in an inert gas, and the mixture formed therefrom is passed over a hot tungsten filament wherein carbon disulfide is degraded into fragments. The fragments are then deposited onto a surface of a non-reactive substrate. The deposited fragments recombine to form the macromolecular composition. A significant characteristic of the composition is its threshold voltage above which its electrical resistance drops precipitously. This characteristic also exhibits a unique temperature dependence. Dopants may be added to the composition to reduce the electrical resistance.

REFERENCES:
patent: 3386970 (1968-06-01), Pitt
patent: 3390140 (1968-06-01), Pitt & Pallos
patent: 3717619 (1973-02-01), Hartzler
patent: 4115168 (1978-09-01), Buonadonna et al.
patent: 4452727 (1984-06-01), Frommer et al.
patent: 4462929 (1984-07-01), Shacklette et al.
patent: 4599194 (1986-07-01), Frommer et al.
patent: 4620944 (1986-11-01), Armand et al.
patent: 4765928 (1988-08-01), Thakur
patent: 4816547 (1989-03-01), Tsukamoto et al.
patent: 4962158 (1990-10-01), Kobayashi
patent: 4963616 (1990-10-01), Jeneke
patent: 5035835 (1991-07-01), Asakawa et al.
Brown, A. and Whalley, E., Poly (Carbon Diselenide) Jun. 1968, Notes, Inorganic Chemistry, vol. 7, No. 6, 1254-1255.
Butcher, E., Weston, J., and Gebbie, H., High-Pressure Preparation of Black Solid Carbon Disulfide (1964), J. Chem. Phys. 41,2554-2555.
Whalley, E., Structure of Bridgman's Black Carbon Disulphide, (1960), Can. J. Chem. 38, 2105-2108.
Bridgman, P. W., Freezing Parameters and Compressions of Twenty-One Substances to 50,000 KG/CM2, (1941, Pro. Amer. Acad. Arts and Sci. 74,399-424.

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