Flexible magnetic disk

Details Flexible magnetic disk Flexible magnetic disk

1984-07-18

1986-04-08

Robinson, Ellis P.

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

360135, 427 44, 427 541, 427128, 427131, 428 64, 428336, 428137, 428195, 4284259, 428480, 428694, 428695, 428900, G11B 572

Patent

active

045812705

ABSTRACT:
A flexible magnetic disc comprising a magnetic sheet having on at least a part thereof a protective layer comprising (a) a straight or branched chain compound having an acrylic or methacrylic acid ester moiety on the end of at least one of the principal chain and the side chain, (b) an aromatic ketone, and (c) a silicone lubricant, said layer being hardenable by photopolymerization.

REFERENCES:
patent: 3466156 (1969-09-01), Peters
patent: 3681225 (1972-08-01), Genma
patent: 4239828 (1980-12-01), Knope
patent: 4335183 (1982-06-01), Hosaka
patent: 4368239 (1983-01-01), Nakajima
patent: 4387114 (1983-06-01), Conner
patent: 4404247 (1983-09-01), Dominguez-Burguette
patent: 4434210 (1984-02-01), Nakajima
patent: 4486500 (1984-12-01), Naruo

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