Magnetic materials

Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...

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430110, 428403, 428407, 428900, 428694BA, G03G 9083

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active

054298997

ABSTRACT:
Herein are disclosed a resin magnet excellent in flow characteristics and magnetic properties comprising a surface modified magnetic powder in respect of which the surface of the magnetic powder particles has been coated uniformly with a surface modifying mixture consisting of a titanium oligomer and an organic acid ester, and a resin; a magnetic toner excellent in printing quality and resolution comprising a fine powder prepared by mixing and pulverizing a resin and such a surface-modified magnetic powder, and a fluidizing agent; a magnetic coating material comprising such a surface-modified magnetic powder, an organic binder, and a solvent; and a magnetic recording material excellent in magnetic and surface properties obtained by coating a substrate resin with a magnetic coating material comprising such a surface-modified magnetic powder, an organic binder, and a solvent.

REFERENCES:
patent: 4415630 (1983-11-01), Kubota et al.
patent: 4550054 (1985-10-01), Yamauchi et al.
patent: 4833033 (1989-05-01), Sannohe et al.
patent: 4990276 (1991-02-01), Bishop et al.
Patent Abstracts of Japan, vol. 90, No. 16 (P-329), Jan. 23, 1985, & JP-59-162-627, Sep. 13, 1984, Yamaguchi Atsutaka, et al., "Magnetic Recording Medium".
Patent Abstracts of Japan, vol. 10, No. 82 (E-392)(2139), Apr. 2, 1986, & JP-60-229-306, Nov. 14, 1985, Yoshio Aoki, et al., "Surface Treatment of Magnetic Powder and Manufacture".
Patent Abstracts of Japan, vol. 8, No. 94 (M-293)(1531), Apr. 28, 1984, & JP-59-9101, Jan. 18, 1984, Satoshi Miyao, et al., "Rare Earth Magnetic Powder Applied with Surface Treatment and its Production".

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