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公开(公告)号：DE3885825D1
公开(公告)日：1994-01-05
申请号：DE3885825
申请日：1988-09-09
Applicant: BASF AG
Inventor： KOVACS JENOE DR , MELZER MILENA , BALZ WERNER DR , LENZ WERNER DR , LOCH WERNER DR , JAKUSCH HELMUT DR
IPC: G11B5/706 , C09D5/23 , C09D7/12 , C09D167/00 , C09D177/00 , C09D183/04 , G11B5/70 , G11B5/702 , G11B5/708 , G11B5/71
Abstract: The invention relates to magnetic recording media which have at least one magnetizable layer strongly bonded to a nonmagnetic substrate, the magnetizable layer essentially consisting of magnetic material finely divided in an organic polymer binder, a dispersant, a lubricant and further conventional additives.
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公开(公告)号：DE3927622A1
公开(公告)日：1991-02-28
申请号：DE3927622
申请日：1989-08-22
Applicant: BASF AG
Inventor： OHLINGER MANFRED DR , KOVACS JENOE DR
Abstract: The invention relates to magnetic recording media comprising a nonmagnetic substrate and a magnetisable layer arranged thereon, essentially consisting of a magnetic material from the group comprising the cobalt-modified iron oxides and the hexagonal ferrites and inorganic supporting substances finely distributed in organic binders, the inorganic supporting substance used being ferromagnetic chromium dioxide.
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公开(公告)号：DE3573346D1
公开(公告)日：1989-11-02
申请号：DE3573346
申请日：1985-07-22
Applicant: BASF AG
Inventor： BALZ WERNER DR , KOVACS JENOE DR , LECHNER HILMAR , SCHAEFER DIETER DR , BUETHE INGOLF DR
IPC: G11B5/702 , C08F299/02 , C09D5/23 , C09D171/00 , C09D171/12 , C09D175/06 , G11B5/73 , G11B5/738 , G11B5/842 , G11B5/704
Abstract: Layer-type magnetic recording media are produced by applying a dispersion of a magnetically anisotropic material in a binder solution onto a flexible plastic base provided with an adhesion-promoting layer and then solidifying the magnetic layer, by a method in which the adhesion-promoting layer consists of a radiation-curable aqueous dispersion of a polymer.
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公开(公告)号：DE3731066A1
公开(公告)日：1989-04-06
申请号：DE3731066
申请日：1987-09-16
Applicant: BASF AG
Inventor： KOVACS JENOE DR , MELZER MILENA , BALZ WERNER DR , LENZ WERNER DR , LOCH WERNER DR , JAKUSCH HELMUT DR
IPC: G11B5/706 , C09D5/23 , C09D7/12 , C09D167/00 , C09D177/00 , C09D183/04 , G11B5/70 , G11B5/702 , G11B5/708 , G11B5/71
Abstract: The invention relates to magnetic recording media which have at least one magnetizable layer strongly bonded to a nonmagnetic substrate, the magnetizable layer essentially consisting of magnetic material finely divided in an organic polymer binder, a dispersant, a lubricant and further conventional additives.
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25.发明专利
公开(公告)号：DE3603431A1
公开(公告)日：1987-08-06
申请号：DE3603431
申请日：1986-02-05
Applicant: BASF AG
Inventor： HOPPE KLAUS-DIETER DR , STECK WERNER DR , KOVACS JENOE DR , FESER RAINER DR , JAKUSCH HELMUT DR
Abstract: The invention relates to a process for preparing ferromagnetic metal particles consisting essentially of iron, starting from an acicular alpha -FeOOH which, after a shape-stabilising dressing on the particle surface, is heat-treated at from 500 to 850 DEG C and subsequently reduced by means of gaseous reducing agents (reductants) at from 200 to 500 DEG C to the metal, the alpha -FeOOH used being prepared in the presence of zinc and phosphate ions.
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Patent Agency Ranking
公开(公告)号：DE3526415A1
公开(公告)日：1987-02-05
申请号：DE3526415
申请日：1985-07-24
Applicant: BASF AG
Inventor： KOVACS JENOE DR , ENGELHARDT PETER , ROLLER HERMANN , SCHWARZ LOTHAR , NAGEL PETER
Abstract: Magnetic recording media are produced by dispersing pulverulent magnetic material in a mixture of a solvent, an organic polymer binder, a dispersant and other conventional additives, with the aid of a conventional dispersing apparatus and using a particular ceramic grinding medium, applying the resulting dispersion in the form of a layer on a base and then compacting the layer.
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公开(公告)号：DE3560021D1
公开(公告)日：1987-01-02
申请号：DE3560021
申请日：1985-02-22
Applicant: BASF AG
Inventor： BALZ WERNER DR , KOVACS JENOE DR , MUENZNER WULF DR DIPL ING , ROLLER HERMANN
Abstract: Magnetic recording media consist of a non-magnetic base and a magnetic layer firmly bonded thereto, the magnetic layer containing further additives in addition to ferromagnetic metal powder, an organic binder, a metal oxide powder and conventional assistants.
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公开(公告)号：DE3427683A1
公开(公告)日：1986-02-06
申请号：DE3427683
申请日：1984-07-27
Applicant: BASF AG
Inventor： BALZ WERNER DR , KOVACS JENOE DR , LECHNER HILMAR , SCHAEFER DIETER DR , BUETHE INGOLF DR
IPC: G11B5/702 , C08F299/02 , C09D5/23 , C09D171/00 , C09D171/12 , C09D175/06 , G11B5/73 , G11B5/738 , G11B5/842 , B05D5/12
Abstract: Layer-type magnetic recording media are produced by applying a dispersion of a magnetically anisotropic material in a binder solution onto a flexible plastic base provided with an adhesion-promoting layer and then solidifying the magnetic layer, by a method in which the adhesion-promoting layer consists of a radiation-curable aqueous dispersion of a polymer.
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公开(公告)号：DE3418673A1
公开(公告)日：1985-11-21
申请号：DE3418673
申请日：1984-05-19
Applicant: BASF AG
Inventor： STOCKBURGER DIETER DR , GRAU WERNER DR , KOVACS JENOE DR , KREITNER LUDWIG DR
Abstract: The invention relates to flexible magnetic recording carriers comprising a non-magnetic flexible carrier material and two magnetic coatings applied thereupon, lying one over the other and essentially composed of magnetic material finely distributed in organic polymer binders, the magnetic materials of the two magnetic coatings differing in specific surface and coercive field strength.
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公开(公告)号：DE3407721A1
公开(公告)日：1985-09-12
申请号：DE3407721
申请日：1984-03-02
Applicant: BASF AG
Inventor： BALZ WERNER DR , KOVACS JENOE DR , MUENZNER WULF DR , ROLLER HERMANN
Abstract: Magnetic recording media consist of a non-magnetic base and a magnetic layer firmly bonded thereto, the magnetic layer containing further additives in addition to ferromagnetic metal powder, an organic binder, a metal oxide powder and conventional assistants.
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