Resin bonded permanent magnet and a binder therefor

Compositions – Magnetic – With wax – bitumen – resin – or gum

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C04B 3504, H01F 100

Patent

active

051146045

ABSTRACT:
A curable resin binder comprising an epoxy resin which is a solid at room temperature, an epoxy resin curing agent which is inactive at room temperature, and as a curing accelerator, a pyridine derivative containing at least one hydroxyl group in a molecule. Also disclosed is a resin-bonded rare earth permanent magnet made by employing the binder and a powder of an alloy containing a rare earth metal or metals.

REFERENCES:
patent: 3819564 (1974-06-01), Gindrop et al.
patent: 4253886 (1981-03-01), Aonuma et al.
patent: 4876305 (1989-10-01), Mazany
"Epoxy Resins Chemistry and Technology" Clayton A. Way, pp. 743-745; 772-778; 473-477, 468 .COPYRGT.1988, Mariel Dekker, Inc.-N.Y.
Hackh's Chemical Dictionary, p. 557, 4th Ed., McGraw-Hill, N.Y.

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