Magnetic recording member and process for manufacturing the same

Details Magnetic recording member and process for manufacturing the same Magnetic recording member and process for manufacturing the same

1984-10-25

1985-07-16

Robinson, Ellis P.

Stock material or miscellaneous articles

Composite

Of polyisocyanurate

360134, 360135, 360136, 427128, 427131, 427132, 428694, 428695, 428900, 428447, 428450, 428704, G11B 572

Patent

active

045296596

ABSTRACT:
Magnetic recording member having a magnetic storage layer covered by composite overlaying layers including an intermediate layer and a lubricant layer. The thin intermediate layer is formed by coating an aminosilane or epoxysilane compound directly or indirectly over the magnetic layer. The lubricant layer is formed over the intermediate layer by coating a lubricant made of a fluorinated hydrocarbon polymer having a terminal carboxyl or sulfonic acid group. The lubricant layer is chemically coupled with the intermediate layer by reacting the terminal carboxy or sulfonic acid group with the aminosilane or epoxysilane compound of the lubricant layer at room temperature or by heating, whereby the lubricant layer is stabilized to suppress deterioration of the lubricant layer and to suppress the reduction in lubricating property due to dispersion. With the stable lubricant layer according to the invention, abrasion of magnetic head slider slider and magnetic disc can be reduced and stiction of the head slider slider to the disc can be eliminated to preclude impairment of damage of the disc otherwise caused by head slider slider crash.

REFERENCES:
patent: 3810874 (1974-05-01), Mitsch
patent: 4069360 (1978-01-01), Yanagisawa
patent: 4085137 (1978-04-01), Mitsch
patent: 4152487 (1979-05-01), Yanagisawa
patent: 4267238 (1981-05-01), Chernega
patent: 4268556 (1981-05-01), Pedrotty
patent: 4307156 (1981-12-01), Yanagisawa
patent: 4404247 (1983-09-01), Burguette
patent: 4434210 (1984-02-01), Nakejima

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