公开(公告)号：DE3614148A1

公开(公告)日：1987-10-29

申请号：DE3614148

申请日：1986-04-26

Applicant: BASF AG

Inventor： MELZER MILENA ,  MEYER BERND DR ,  SOMMERMANN FRIEDRICH DR ,  KLUMPP PETER ,  KREITNER LUDWIG DR ,  LENZ WERNER DR

IPC: C09D5/23 ,  C09D7/12 ,  G11B5/706 ,  G11B5/708 ,  G11B5/71 ,  G11B5/72 ,  B05D5/12

公开(公告)号：DE3372554D1

公开(公告)日：1987-08-20

申请号：DE3372554

申请日：1983-08-08

Applicant: BASF AG

Inventor： KOHL ALBERT ,  SCHNEIDER NORBERT ,  LEY GREGOR DR ,  BALZ WERNER DR ,  MELZER MILENA ,  JAKUSCH HELMUT DR

IPC: G11B5/702 ,  C09D5/23 ,  C09D175/00 ,  C09D175/04 ,  G11B5/70 ,  G11B5/84 ,  G11B5/842

公开(公告)号：DE3560046D1

公开(公告)日：1987-02-12

申请号：DE3560046

申请日：1985-02-09

Applicant: BASF AG

Inventor： MELZER MILENA ,  ROLLER HERMANN ,  SCHNEIDER NORBERT ,  FITTERER HORST ,  MUENZNER WULF DR

IPC: C09D127/06 ,  C09D5/23 ,  C09D163/00 ,  G11B5/72 ,  G11B5/73 ,  G11B5/735

Abstract: A process for the production of magnetic recording media by applying a magnetic layer, which consists essentially of magnetic material finely dispersed in organic polymers, to one side of a flexible base, and applying a non-magnetizable backing coating which is free of inorganic solids to that side of the base which is opposite the magnetic layer, wherein the backing coating consists of two or more polymers which are incompatible with one another and have precipitated from a solvent mixture, and magnetic recording media produced by this process.

公开(公告)号：DE3248327A1

公开(公告)日：1984-06-28

申请号：DE3248327

申请日：1982-12-28

Applicant: BASF AG

Inventor： KOHL ALBERT ,  BALZ WERNER DR ,  MELZER MILENA ,  SCHNEIDER NORBERT ,  KOESTER EBERHARD DR ,  LEHNER AUGUST

IPC: C08F20/26 ,  C08F220/26 ,  C09D5/23 ,  C09D133/04 ,  C09D133/08 ,  C09D175/00 ,  C09D175/04 ,  G11B5/70 ,  G11B5/702 ,  G11B5/68 ,  G11B5/84 ,  B05D5/12 ,  C09D3/80

Abstract: Magnetic recording media are produced by dispersing finely divided anisotropic magnetic material and conventional additives in a solution of a polymeric binder in an organic solvent, or in an aqueous dispersion of a polymeric binder, adding a polymer based on hydrophilic ethylenically unsaturated compounds to the magnetic dispersion, applying a layer of the dispersion to a non-magnetizable base, orienting the anisotropic magnetic material in a magentic field and drying the applied layer.

公开(公告)号：DE3232117A1

公开(公告)日：1984-03-01

申请号：DE3232117

申请日：1982-08-28

Applicant: BASF AG

Inventor： KOHL ALBERT ,  SCHNEIDER NORBERT ,  LEY GREGOR DR ,  BALZ WERNER DR ,  MELZER MILENA ,  JAKUSCH HELMUT DR

IPC: G11B5/702 ,  C09D5/23 ,  C09D175/00 ,  C09D175/04 ,  G11B5/70 ,  G11B5/84 ,  G11B5/842 ,  G11B5/68

公开(公告)号：DE3227164A1

公开(公告)日：1984-01-26

申请号：DE3227164

申请日：1982-07-21

Applicant: BASF AG

Inventor： LEHNER AUGUST ,  BALZ WERNER DR ,  LENZ WERNER DR ,  KOPKE HELMUT ,  BACHMANN RUDOLF DR ,  VELIC MILAN DR ,  MELZER MILENA ,  HARTMANN HEINRICH DR

IPC: C08G18/10 ,  C08G18/12 ,  C08G18/65 ,  C09D5/23 ,  C09D175/00 ,  C09D175/04 ,  G11B5/702 ,  G11B5/70 ,  C09D3/72 ,  C08G18/66

Abstract: Magnetic recording media comprise a non-magnetic base which is provided with a magnetic layer which consists of a dispersion of an anisotropic magnetic material in an organic binder which consists essentially of an OH-containing polyurea-urethane binder crosslinked with polyisocyanate. The OH-containing polyurea-urethane is obtained by reacting a polydiol, a diol and a primary or secondary aminoalcohol, and if appropriate a triol, with a diisocyanate.