Central hubs for flexible magnetic data discs formed of...

Details Central hubs for flexible magnetic data discs formed of... Central hubs for flexible magnetic data discs formed of...

H - Electricity

01

F

H01F 1/28 (2006.01) G11B 5/62 (2006.01) G11B 5/82 (2006.01) G11B 23/00 (2006.01) G11B 23/03 (2006.01)

Patent

CA 2063871

Flexible sheet-like magnetic discs (so-called "floppy discs") are provided with a central hub formed of a magnetically soft polyacetal composition. The polyacetal composition necessarily includes a polyacetal resin and elemental iron particles homogeneously dispersed throughout the polyacetal resin in an amount sufficient to impart the desired soft magnetic properties to the inherently nonmagnetic polyacetal bane resin. The polyacetal compositions of this invention are infection-moldable so that central hubs for flexible magnetic discs can be rapidly and economically produced.

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