Transparent colored magnetic materials and electrostatographic p

Details Transparent colored magnetic materials and electrostatographic p Transparent colored magnetic materials and electrostatographic p

1976-08-02

1980-04-22

Pianalto, Bernard D.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Post imaging process, finishing, or perfecting composition...

428406, 430 45, 252 6255, 106304, B05D 104, B05D 106, B05B 500

Patent

active

041996143

ABSTRACT:
Transparent colored materials having low bulk densities and high magnetic permeabilities are obtained by encasing silicaceous particles in a sheath of magnetic or magnetically-attractable metal, which are then heat-treated. The magnetic composite particles are prepared by the solution phase thermal decomposition of transition metal carbonyls in the presence of the silicaceous particles with a suitable suspending medium. Air and moisture are excluded from the reaction vessel and the contents are heated with agitation so that the carbonyl boils and the mixture is refluxed until the temperature rises to that of the suspending medium whereupon coating of the silicaceous particles with elemental metal is complete. The mixture is cooled, the beads washed, air-dried, and recovered. The metal coated particles are then heated in an ambient atmosphere for between about 2 to about 120 minutes at a temperature of from between about 50.degree. C. and 700.degree. C. Particles having transparency, color, and magnetism in the same body are obtained.

REFERENCES:
patent: 3549412 (1970-12-01), Frey et al.
patent: 3709713 (1973-01-01), Turner
patent: 3877960 (1975-04-01), Knoss
patent: 3922430 (1975-11-01), Mayer

Affiliated with

Also associated with

Rating

Transparent colored magnetic materials and electrostatographic p does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Transparent colored magnetic materials and electrostatographic p, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transparent colored magnetic materials and electrostatographic p will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1475823