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公开(公告)号：DE3380753D1
公开(公告)日：1989-11-23
申请号：DE3380753
申请日：1983-07-11
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 , BAUR REINHOLD DR
IPC: C08G18/10 , C08G18/12 , C08G18/65 , C09D5/23 , C09D175/00 , C09D175/04 , G11B5/702
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：DE4220860A1
公开(公告)日：1994-01-05
申请号：DE4220860
申请日：1992-06-25
Applicant: BASF AG
Inventor： FITTERER HORST , BECKER DIETER , NOWAK UWE DR , SCHOMANN KLAUS DIETER DR , MUELLER HANS , RICHTER VOLKER , DINGLER ROBERT , BAUR REINHOLD DR , SCHLATTER MANFRED DR , HUEBNER DIETMAR
Abstract: For cleaning or smoothing the surface of a material web (2), the latter is passed over at least one blade (4), the web being pressed against the blade edge (10) by means of a vacuum. The opening (9) of a vacuum chamber (8) formed next to the blade (4) is adjustable with respect to the blade edge (10), so that different flows and forces can be set.
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公开(公告)号：DE3467058D1
公开(公告)日：1987-12-03
申请号：DE3467058
申请日：1984-07-10
Applicant: BASF AG
Inventor： ROLLER HERMANN , LEHNER AUGUST , HACK JOACHIM , GRAU WERNER DR , BALZ WERNER DR , BAUR REINHOLD DR
Abstract: Magnetic recording media which have a thin backing coating and consist of a non-magnetic flexible base and a magnetic layer which is applied to one side of the base and comprises magnetic material finely dispersed in an organic binder are produced by applying a dispersion of finely divided non-magnetizable conductive and non-conductive solids and conventional additives in a solution of a polymeric binder in an organic solvent to that side of the base which is opposite the magnetic layer by means of a knife-coater, and then drying the layer, a high molecular weight organic compound which acts as a thickener being added to the backing coating dispersion.
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公开(公告)号：DE3430819A1
公开(公告)日：1986-03-06
申请号：DE3430819
申请日：1984-08-22
Applicant: BASF AG
Inventor： HUEBNER WERNER , MELZER MILENA , KOESTER EBERHARD DR , BAUR REINHOLD DR , SOMMERMANN FRIEDRICH DR
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公开(公告)号：DE3341698A1
公开(公告)日：1985-05-30
申请号：DE3341698
申请日：1983-11-18
Applicant: BASF AG
Inventor： LEHNER AUGUST , BALZ WERNER DR , VELIC MILAN DR , KOPKE HELMUT , GRAU WERNER DR , BAUR REINHOLD DR
IPC: C09D5/23 , C09D127/04 , C09D127/06 , C09D175/00 , C09D175/04 , C09D175/06 , G11B5/702 , H01F10/10 , G11B5/68 , C09D3/72
Abstract: Magnetic recording media comprise a non-magnetic base which is provided with a magnetic layer consisting of finely divided anisotropic magnetic material which is dispersible in binders and additives, the binder being a mixture of (1) an OH-containing polyurethane which is crosslinked with polyisocyanates, (2) a high molecular weight thermoplastic linear polyurethane and (3) a polyvinylformal binder, a phenoxy resin, a cellulose ester or a vinyl chloride copolymer.
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Patent Agency Ranking
公开(公告)号：DE3227161A1
公开(公告)日：1984-01-26
申请号：DE3227161
申请日：1982-07-21
Applicant: BASF AG
Inventor： LEHNER AUGUST , VELIC MILAN DR , KOPKE HELMUT , BALZ WERNER DR , LENZ WERNER DR , BAUR REINHOLD DR
IPC: C08G18/10 , C08G18/12 , C08G18/65 , C08L75/04 , C09D5/23 , C09D127/04 , C09D127/06 , C09D171/00 , C09D171/12 , C09D175/00 , C09D175/02 , C09D175/06 , G11B5/702 , G11B5/73 , G11B5/70
Abstract: The invention relates to a magnetic recording support made of a non-magnetic support material which is provided with a magnetic layer, essentially consisting of a dispersion of an anisotropic magnetic material in a polyurethane binder mixture which is crosslinked with polyisocyanate, and in which the polyurethane binder mixture consists of a low-molecular weight polyurea urethane containing OH groups and a high-molecular weight thermoplastic linear polyurethane in a mixing ratio of 9:1 to 1:9.
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公开(公告)号：DE59006663D1
公开(公告)日：1994-09-08
申请号：DE59006663
申请日：1990-04-05
Applicant: BASF AG
Inventor： PLATZ HORST , ENGELHARDT PETER , SOMMERMANN FRIEDRICH DR , KOHL ALBERT , KLAUSMANN JUERGEN , BAUR REINHOLD DR , HEILMANN PETER DR , ROLLER HERMANN
Abstract: The invention relates to a process for the production of magnetic recording media by dispersing pulverulent, magnetic material in a mixture of solvents, organic polymer binders, dispersants and further customary additives in a stirred ball mill, followed by aftertreatment in a ball mill filled with grinding media, application of the resulting dispersion as a layer on a substrate and subsequent solidification of the layer.
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公开(公告)号：DE3322746C2
公开(公告)日：1994-06-23
申请号：DE3322746
申请日：1983-06-24
Applicant: BASF AG
Inventor： BALZ WERNER DR , BAUR REINHOLD DR , FESER RAINER DR , JAKUSCH HELMUT DR , KOVACS JENOE DR , OHLINGER MANFRED DR , RUDOLF PETER DR
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公开(公告)号：AT59901T
公开(公告)日：1991-01-15
申请号：AT88114009
申请日：1988-08-27
Applicant: BASF AG
Inventor： BAUR REINHOLD DR , KLAUSMANN JUERGEN
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公开(公告)号：DE3729407A1
公开(公告)日：1989-03-16
申请号：DE3729407
申请日：1987-09-03
Applicant: BASF AG
Inventor： BAUR REINHOLD DR , KLAUSMANN JUERGEN
Abstract: In order to monitor the thickness of a magnetic tape for its tolerance values while the tape is being wound onto a hub of a tape cassette, the tape thickness is determined by means of a microprocessor from the number of revolutions of the hub while the tape is being wound on and from the length of tape wound on.
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