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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.
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公开(公告)号：DE3163528D1
公开(公告)日：1984-06-14
申请号：DE3163528
申请日：1981-10-23
Applicant: BASF AG
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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.
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公开(公告)号：DE3852049D1
公开(公告)日：1994-12-15
申请号：DE3852049
申请日：1988-02-26
Applicant: BASF AG
Inventor： LEHNER AUGUST , KOHL ALBERT , BOBRICH MICHAEL DR , ROLLER HERMANN , RICHTER PETER DR , LENZ WERNER DR , KREITNER LUDWIG DR , RUDOLF PETER DR
IPC: C08G18/12 , C09D5/23 , C09D175/00 , C09D175/04 , G11B5/702
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公开(公告)号：DE59007497D1
公开(公告)日：1994-11-24
申请号：DE59007497
申请日：1990-08-24
Applicant: BASF AG
Inventor： BOBRICH MICHAEL DR , LEHNER AUGUST , ROLLER HERMANN , SUETTINGER RUDOLF DR , KEPPELER UWE DR , LENZ WERNER DR , SCHULZ GUENTHER DR , KOHL ALBERT
IPC: C08G18/12 , C08G18/61 , C08G18/65 , C08G18/66 , C08G18/76 , C08L75/04 , C09D5/23 , C09D175/00 , C09D175/04 , G11B5/702
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Patent Agency Ranking
公开(公告)号：DE3929167A1
公开(公告)日：1991-03-07
申请号：DE3929167
申请日：1989-09-02
Applicant: BASF AG
Inventor： BOBRICH MICHAEL DR , LEHNER AUGUST , KOHL ALBERT , SUETTINGER RUDOLF DR , KEPPELER UWE DR , LENZ WERNER DR , ROLLER HERMANN , KOPKE HELMUT , SCHULZ GUENTHER DR
IPC: C08G18/12 , C08G18/38 , C08G18/50 , C08G18/65 , C08G18/66 , C08L75/04 , C09D5/23 , C09D175/00 , C09D175/04 , G11B5/702
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公开(公告)号：DE3929166A1
公开(公告)日：1991-03-07
申请号：DE3929166
申请日：1989-09-02
Applicant: BASF AG
Inventor： KREITNER LUDWIG DR , GRAU WERNER DR , LEHNER AUGUST , REICHERT HANS DR , SOMMERMANN FRIEDRICH DR , SCHNEIDER NORBERT , ERHARDT GERD
IPC: G11B5/842
Abstract: The invention relates to a process for the production of magnetic recording media by preparing a dispersion of anisotropic magnetic materials in the solution of an organic binder using dispersants and further conventional additives, applying the dispersion as a layer on a nonmagnetic substrate and solidifying the the applied magnetic layer, the cylindrical milling container used being provided with an anchor-like or spiral stirrer and being filled with grinding media whose specific gravity is lower than that of the magnetic material.
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公开(公告)号：DE3929165A1
公开(公告)日：1991-03-07
申请号：DE3929165
申请日：1989-09-02
Applicant: BASF AG
Inventor： BOBRICH MICHAEL DR , ROLLER HERMANN , LEHNER AUGUST , KEPPELER UWE DR , SUETTINGER RUDOLF DR , LOCH WERNER DR , LENZ WERNER DR , SCHULZ GUENTHER DR
IPC: C08G18/12 , C08G18/61 , C08G18/65 , C08G18/66 , C08G18/76 , C08L75/04 , C09D5/23 , C09D175/00 , C09D175/04 , G11B5/702
Abstract: The invention relates to magnetic recording media, consisting of a nonmagnetic substrate and at least one magnetisable layer firmly applied thereon and based on a polyurethane binder which is optionally crosslinked with polyisocyanate, the binder consisting of at least 50% by weight of a low molecular weight branched polyureaurethane having OH-containing groups at the chain ends, and in which the sliding properties are improved and the friction is reduced by incorporating siloxanes.
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公开(公告)号：DE3929164A1
公开(公告)日：1991-03-07
申请号：DE3929164
申请日：1989-09-02
Applicant: BASF AG
Inventor： BOBRICH MICHAEL DR , LEHNER AUGUST , KOHL ALBERT , SUETTINGER RUDOLF DR , KEPPELER UWE DR , LENZ WERNER DR , ROLLER HERMANN , KOPKE HELMUT , SCHULZ GUENTHER DR
IPC: C08G18/12 , C08G18/38 , C08G18/50 , C08G18/65 , C08G18/66 , C08G18/76 , C08L75/04 , C09D5/23 , C09D175/00 , C09D175/04 , G11B5/702
Abstract: The invention relates to magnetic recording media, consisting of a nonmagnetic substrate and at least one magnetisable layer firmly applied thereon and based on a polyurethane binder which is optionally crosslinked with polyisocyanate, and the binder consisting of at least 50% by weight of a low molecular weight branched polyureaurethane having OH-containing urea groups at the chain ends, and in which the sliding properties are improved and the friction is improved by incorporating perfluoro groups.
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公开(公告)号：DE3574192D1
公开(公告)日：1989-12-14
申请号：DE3574192
申请日：1985-08-19
Applicant: BASF AG
Inventor： ROLLER HERMANN , HACK JOACHIM , WOWERIES UWE , LEHNER AUGUST , GRAU WERNER DR , NAGEL PETER , FALK ROLAND DR
IPC: C08J7/04 , C09D5/23 , C09D175/00 , C09D175/04 , C10M105/56 , C10N40/18 , C10N70/00 , G11B5/702 , G11B5/842
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