A magnetic recording medium

Details A magnetic recording medium A magnetic recording medium

1993-12-21

1995-11-14

Pianalto, Bernard

Stock material or miscellaneous articles

Composite

Of inorganic material

427122, 427123, 427131, 427132, 427404, 4274121, 4274342, 428694BM, H01F 1002

Patent

active

054665426

ABSTRACT:
A wet-on-wet application process by means of a sheet extruder having at least two slot dies is described, the upper layer containing metal powders and/or metal powder alloys while the lower layer contains the same magnetic pigments and conductivity-increasing and/or transparency-reducing additives, preferably carbon black, and both layers having virtually the same rheological properties. The magnetic recording medium has improved conductivity and very good running behavior, in particular when used as a mirror mastertape.

REFERENCES:
patent: 5318828 (1994-06-01), Noguchi et al.

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