Compositions – Electrically conductive or emissive compositions – Elemental carbon containing
Patent
1989-01-12
1991-08-20
Barr, Josephine
Compositions
Electrically conductive or emissive compositions
Elemental carbon containing
252502, 524495, 524496, H01B 106
Patent
active
050412426
ABSTRACT:
A composition for forming electrically-conductive coatings, consisting essentially of a water-urethane resin, a plurality of carbon pigments including carbon black and natural graphite, each carbon pigment having a different preselected average particle size, and sufficient water to permit dispersion of the resin and carbon pigments therethrough. The ratio of resin to total carbon pigment and the ratio of each carbon pigment to total carbon pigment is selected such that a coating formed upon air drying of the composition has a resistance of less than 1 ohms per square and as low as 0.15-0.3 ohms per square.
REFERENCES:
patent: 4526952 (1985-07-01), Zeitler et al.
patent: 4547311 (1985-10-01), Sako et al.
patent: 4624801 (1986-11-01), Kawaguchi et al.
patent: 4695508 (1987-09-01), Kageyama et al.
patent: 4772422 (1988-09-01), Hyibata et al.
Fowle Robert
Lohnes Steven
Barr Josephine
Cappar Limited
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