Method for producing surface-treated magnetic powder

Details Method for producing surface-treated magnetic powder Method for producing surface-treated magnetic powder

1990-12-11

1993-06-08

Wyszomierski, George

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

252 6254, H01F 4100

Patent

active

052175421

ABSTRACT:
This invention relates to a method for producing surface-treated magnetic power for high record density magnetic recording medium which has excellent dispesibility and high filling density and surface smootheness.
This invention provides a method for producing surface-treated magnetic powder characterized by treating magnetic powder with at least one functional group of the epoxy group, carboxyl group, hydroxyl group, thiol group and amino group and with hydrocarbon group having more than eight methylene chains.

REFERENCES:
patent: 3943012 (1976-03-01), Tamai et al.
patent: 4096316 (1978-06-01), Tamai et al.
patent: 4152485 (1979-05-01), Mizumura et al.
patent: 4197347 (1980-04-01), Ogawa et al.
patent: 4253886 (1981-03-01), Aonuma et al.
patent: 4594174 (1986-06-01), Nakayama et al.
patent: 4600521 (1986-07-01), Nakamura et al.
patent: 4623405 (1986-11-01), Tamai
patent: 4748084 (1988-05-01), Hata et al.
patent: 4797324 (1989-01-01), Hata
patent: 5063119 (1991-11-01), Ishida et al.
patent: 5091268 (1992-02-01), Nishikawa et al.

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