High density information record medium using carbon black partic

Dynamic information storage or retrieval – Storage medium structure – Electrical track structure

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369275, 369288, 428288, C09C 156, H01B 106

Patent

active

046462848

ABSTRACT:
High density information signal recording media of an electrostatic capacitance type, in which an information signal is recorded as geometric variations. The medium consists of a conductive resin composition which comprises a vinyl chloride resin, carbon black particles and a silicone oil lubricant. The carbon black particles are treated with a silicone oil to have the oil coated thereon.

REFERENCES:
patent: 4228194 (1980-10-01), Meeder
patent: 4299736 (1981-11-01), Datta
patent: 4472295 (1984-09-01), Fox et al.
patent: 4547545 (1985-10-01), Hamaguchi et al.
patent: 4558087 (1985-12-01), Yamakawa et al.

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