Magnetic recording disk with improved lubricant retention

Details Magnetic recording disk with improved lubricant retention Magnetic recording disk with improved lubricant retention

1985-08-19

1987-09-15

Robinson, Ellis P.

Coating processes

Magnetic base or coating

Magnetic coating

252 6254, 427128, 427131, 4283155, 4283159, 4283179, 428694, 428695, 428900, G11B 5708

Patent

active

046939083

ABSTRACT:
The addition of water and an inverse micelle forming surfactant in an appropriate molar ratio to the organic binder used as a coating for magnetic recording disks results in the formation of micropores of uniform size and distribution in the coating when the water evaporates during curring of the coating. The size and number of the micropores is controlled by the water/surfactant molar ratio, the amount of water and the amount of surfactant. This permits the design and control of the amount of liquid lubricant retained in the disk coating.

REFERENCES:
patent: 4032682 (1977-06-01), Masson
patent: 4163823 (1979-08-01), Legras
patent: 4299882 (1981-11-01), Togawa
patent: 4368237 (1983-01-01), Yamada
patent: 4405684 (1983-09-01), Blumentritt
patent: 4450199 (1984-05-01), Tadokoro
patent: 4546035 (1985-10-01), Ko et al.
patent: 4567096 (1986-01-01), Piltingsrud
patent: 4590127 (1986-05-01), Hashimoto

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