Stock material or miscellaneous articles – Circular sheet or circular blank – Recording medium or carrier
Patent
1997-03-13
1999-09-28
Kiliman, Leszek
Stock material or miscellaneous articles
Circular sheet or circular blank
Recording medium or carrier
428694T, 428694TS, 428694SL, 428900, 428131, 427127, 427128, 427129, 427130, G11B 566
Patent
active
059585447
ABSTRACT:
A magnetic recording medium comprises a non-magnetic substrate and a magnetic layer, which is constituted of a thin ferromagnetic metal film and is overlaid upon at least either one of the surfaces of the non-magnetic substrate. A prime-coating layer, which has alkyl chains linked by an ether linkage to each other in a polysiloxane, is formed between the non-magnetic substrate and the thin ferromagnetic metal film. The magnetic recording medium is capable of being produced easily and at a low cost. The prime-coating layer has smooth surface characteristics, is free from deterioration of surface characteristics and the occurrence of cracking even during the formation of a magnetic layer thereon with a sputtering process, and causes no blocking to occur.
REFERENCES:
patent: 5277980 (1994-01-01), Mino
patent: 5472778 (1995-12-01), Ueda
patent: 5604029 (1997-02-01), Maezawa
patent: 5626943 (1997-05-01), Tenhover
Fuji Photo Film Co. , Ltd.
Kiliman Leszek
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