Magnetic particles used for electrostatic latent image developer

Details Magnetic particles used for electrostatic latent image developer Magnetic particles used for electrostatic latent image developer

1990-07-18

1992-06-02

Martin, Roland

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Preparing alpha or beta amino acid or substituted amino acid...

430109, 430111, 430903, G03G 9083

Patent

active

051185873

ABSTRACT:
Disclosed herein are magnetic particles used for an electrostatic latent image developer comprising composite particles containing from more than 80% by weight to not more than 99% by weight of fine ferromagnetic particles and a cured phenol resin, and having a number-average particle diameter of from not less than 1 .mu.m to less than 10 .mu.m and an apparent density of not greater than 1.5 g/cm.sup.3.

REFERENCES:
patent: 3533835 (1970-10-01), Hagenbach et al.
patent: 3960805 (1976-06-01), Taylor
patent: 4543312 (1985-09-01), Murakawa
patent: 4640971 (1987-05-01), Echigo et al.
patent: 4788236 (1988-11-01), Kopf
patent: 4839445 (1989-01-01), Echigo et al.

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