Magnetic and nonmagnetic particles and fluid, methods of making

Details Magnetic and nonmagnetic particles and fluid, methods of making Magnetic and nonmagnetic particles and fluid, methods of making

1995-06-07

1997-09-23

Bonner, Melissa

Compositions

Magnetic

With wax, bitumen, resin, or gum

252 6252, 252 6256, 252310, 423DIG14, 423DIG15, H01F 106, H01F 1220, H01F 128

Patent

active

056700784

ABSTRACT:
Low optical density magnetic fluid which is a stable dispersion of fine magnetic particles. A method of forming the stable dispersion which includes providing an ion exchange resin, loading the ion exchange resin with an ion capable of forming a magnetic phase, treating the loaded resin to form magnetic particles and micronizing the resin and magnetic particles in a fluid to form an aqueous stable colloid. The invention provides submicron particles and submicron particles which are dispersed in an aqueous colloid. A method of forming the stable dispersion which includes providing an ion exchange resin, loading the ion exchange resin with an ion, treating the loaded resin to form nanoscale particles. Fluidizing the resin and particles to form an aqueous stable colloid. A method of forming magnetic materials having tunable magnetic properties and the magnetic materials formed thereby. The magnetic materials contain both single-domain and multidomain particles and have high initial permeability while maintaining coercivity and remanence in the material.

REFERENCES:
patent: 2616791 (1952-11-01), Roseman et al.
patent: 2870000 (1959-01-01), Ryznar
patent: 3152046 (1964-10-01), Kapral
patent: 3654161 (1972-04-01), Geus
patent: 3697265 (1972-10-01), Teuscher et al.
patent: 3867299 (1975-02-01), Rohatgi
patent: 3977984 (1976-08-01), Roberts
patent: 4022701 (1977-05-01), Sawa et al.
patent: 4122030 (1978-10-01), Smith et al.
patent: 4381338 (1983-04-01), Suzuki
patent: 4474866 (1984-10-01), Ziolo
patent: 4622281 (1986-11-01), Imai et al.
patent: 4645619 (1987-02-01), Badesha et al.
patent: 4758275 (1988-07-01), Yubakami et al.
patent: 4760009 (1988-07-01), Larson
patent: 4855079 (1989-08-01), Wyman
patent: 4873102 (1989-10-01), Chang et al.
patent: 5047307 (1991-09-01), Landa et al.
patent: 5110624 (1992-05-01), Noble et al.
patent: 5114477 (1992-05-01), Mort et al.
patent: 5322756 (1994-06-01), Ziolo
patent: 5358659 (1994-10-01), Ziolo

Affiliated with

Also associated with

Rating

Magnetic and nonmagnetic particles and fluid, methods of making does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetic and nonmagnetic particles and fluid, methods of making , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic and nonmagnetic particles and fluid, methods of making will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1937744