公开(公告)号：DE3010873A1

公开(公告)日：1981-10-01

申请号：DE3010873

申请日：1980-03-21

Applicant: BASF AG

Inventor： KOESTER EBERHARD DIPL PHYS DR ,  DEIGNER PAUL DIPL CHEM DR ,  SCHAEFER DIETER DIPL CHEM DR ,  UHL KARL DIPL ING DR ,  FALK ROLAND DIPL CHEM DR

IPC: G11B5/84 ,  G11B5/845

Abstract: A device for magnetically orienting the magnetizable particles of magnetic recording media in a preferred direction, which media are obtained by applying a coating of anisotropically magnetic particles finely dispersed in a solution of an organic binder system and conventional additives to a non-magnetic base, and subsequently solidifying the coating, by the action, on the still fluid coating, of the magnetic fields produced by two E-shaped electromagnets arranged symmetrically with respect to, and in mirror-image relationship to, the plane of the said coating.

公开(公告)号：DE2928096A1

公开(公告)日：1981-02-05

申请号：DE2928096

申请日：1979-07-12

Applicant: BASF AG

Inventor： FELLEISEN PETER DIPL ING ,  MAYER DIETER DR ,  KOESTER EBERHARD DIPL PHYS DR ,  DOMAS FRIEDRICH DIPL ING ,  DEIGNER PAUL DIPL CHEM DR

IPC: C09D5/23 ,  G11B5/70 ,  G11B5/716 ,  G11B5/718 ,  G11B5/84 ,  G11B5/842 ,  G11B5/68 ,  H01F10/00 ,  B05D5/12

Abstract: A magnetic recording disk comprising a non-magnetic substrate and two or more firmly adhering magnetizable layers applied to one or both sides thereof, the layer located directly on the substrate being magnetically isotropic, while the second layer and any additional layers exhibit orientation of the anisotropic magnetic particles parallel to the substrate and to the envisaged recording direction.