Method of manufacturing a resin bound magnet

Details Method of manufacturing a resin bound magnet Method of manufacturing a resin bound magnet

1990-12-28

1993-01-05

Willis, Jr., Prince

Compositions

Magnetic

With wax, bitumen, resin, or gum

252 6251, 523445, 523458, 428900, C08B 3504

Patent

active

051768429

ABSTRACT:
A method of manufacturing a resin bound magnet comprising, mixing and kneading a powdered magnetic material and a rubber modified epoxy resin obtained from the addition polymerization of an epoxy resin and a butadiene or nitrile rubber and thereafter molding and setting the kneading mixture into a desired shape. The magnets prepared by the present invention exhibit permanent deformation under low compressive force, are soft and heat resistant and yet highly elastic and possess low dynamic exothermic properties and excellent low temperature characteristics. In addition, the inventive magnets exhibit excellent radial compression strength and other mechanical properties.

REFERENCES:
patent: 3371044 (1968-02-01), Cochardt
patent: 3585141 (1971-06-01), Ingersoll
patent: 4689163 (1987-08-01), Yamashita
patent: 4878978 (1989-11-01), Goel
patent: 4981635 (1991-01-01), Yamashitaa
patent: 5096741 (1992-03-01), Kobayashi
patent: 5128215 (1992-07-01), Pendergrass

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