Method for preparing a magnetic recording medium

Details Method for preparing a magnetic recording medium Method for preparing a magnetic recording medium

1987-10-16

1989-08-22

Pianalto, Bernard

Coating processes

Magnetic base or coating

Magnetic coating

428694, 428900, H01F 1002

Patent

active

048595004

ABSTRACT:
A method for preparing a magnetic recording medium comprising the steps of pre-dispersing ferromagnetic particles and a binder in a solvent, mixing and dispersing with an additional binder, and coating thus obtained magnetic coating composition on a support, wherein said ferromagnetic particles having a specific surface area S.sub.BET of 40 m.sup.2 /g or more and an absorved moisture content of less than 0.8 wt. % are pre-dispersed in said solvent containing cyclohexanone in an amount of 80 wt. % or more.

REFERENCES:
patent: 4569856 (1986-02-01), Miyoshi et al.

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