Compositions – Magnetic – With wax – bitumen – resin – or gum
Patent
1979-10-29
1981-12-29
Edmundson, F.
Compositions
Magnetic
With wax, bitumen, resin, or gum
106304, 252 6263, H01F 137, C04B 3526, C09C 304
Patent
active
043081550
ABSTRACT:
A rubber or plastic magnet of high magnetic properties is produced by incorporating a magnetoplumbite type magnetic powder into a rubber or thermoplastic or thermosetting matrix at a high concentration with a high degree of orientation of the magnetic particles. Such high concentration and orientation can be obtained by using a magnetoplumbite type magnetic powder having a compressed density in the range between 3.30 g/cm.sup.3 and about 3.55 g/cm.sup.3 and an average particle size of about 1.00 and 1.50.mu., said particles being prepared by dry crushing process from coarse sintered particles and having predominantly single crystal structure.
REFERENCES:
patent: 2837483 (1958-06-01), Hakker et al.
patent: 2964793 (1960-12-01), Blume
patent: 3243374 (1966-03-01), Gillard
patent: 3246060 (1966-04-01), Blume
patent: 3428603 (1969-02-01), Kroenke
patent: 3764539 (1973-10-01), Cochardt et al.
patent: 3846323 (1974-11-01), Esper et al.
patent: 3884823 (1975-05-01), Clendenen et al.
patent: 4022701 (1977-05-01), Sawa et al.
Hackh's Chemical Dictionary by Grant 3rd Ed., p. 667, Blakiston, Philadelphia (1944).
Honda Katsuji
Oguriyama Masami
Tada Takeo
Edmundson F.
TDK Electronics Co. Ltd.
LandOfFree
Rubber or plastic magnet and magnetic powder for making the same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rubber or plastic magnet and magnetic powder for making the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rubber or plastic magnet and magnetic powder for making the same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1017616