公开(公告)号：GB1599712A

公开(公告)日：1981-10-07

申请号：GB1956278

申请日：1978-05-15

Applicant: BASF AG

Inventor： HUEBNER WERNER DIPL ING ,  HARTMANN JOB-WERNER DIPL CHEM ,  DOMAS FRIEDRICH DIPL ING ,  NAGEL PETER DIPL ING ,  DEIGNER PAUL DR ,  KOESTER EBERHARD DIPL PHYS DR ,  HAUSER HANS

IPC: G11B5/84 ,  G11B5/842 ,  G11B5/848 ,  B01F7/10

Abstract: A process and apparatus for the manufacture of magnetic recording media, in which, immediately before the magnetic dispersion is applied to a base, the dispersion is subjected to shear by means of a disc rotatably mounted in a housing, by introducing it at the center of rotation of the disc and forcing it through a gap formed between the face of the disc and the wall of the housing, which gap tapers toward the rim of the disc.

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.

公开(公告)号：DE2451276A1

公开(公告)日：1976-05-06

申请号：DE2451276

申请日：1974-10-29

Applicant: BASF AG

Inventor： WUNSCH GERD DIPL CHEM DR ,  DEIGNER PAUL DR ,  FALK ROLAND DIPL CHEM DR ,  MAHLER KARL DIPL ING DR ,  LOESER WERNER DIPL ING DR ,  DOMAS FRIEDRICH DIPL ING ,  FELLEISEN PETER DIPL ING ,  STECK WERNER DIPL CHEM DR

IPC: C23C28/00 ,  C23C30/00 ,  G11B5/708 ,  G11B5/84 ,  G11B5/858 ,  H01F41/14

Abstract: A process for the manufacture of rigid magnetic recording media by depositing a cobalt-containing ferromagnetic metal layer on a non-magnetic metallic base disc provided with a cured layer of binder which does not dissolve or swell in organic solvents and contains non-magnetic pigments, and which has been activated, before deposition of the ferromagnetic layer, by treatment with a solution of a palladium (O) complex in an organic solvent, followed by decomposition of this complex, to prepare it to receive the ferromagnetic metal layer which is produced by electroless deposition.