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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：DE3341699A1
公开(公告)日：1985-05-30
申请号：DE3341699
申请日：1983-11-18
Applicant: BASF AG
Inventor： LEHNER AUGUST , KOPKE HELMUT , ROLLER HERMANN , BALZ WERNER DR , GRAU WERNER DR , KOESTER EBERHARD DR , SOMMERMANN FRIEDRICH DR
IPC: C09D5/23 , C09D127/04 , C09D127/06 , C09D175/00 , C09D175/02 , C09D175/04 , G11B5/702 , H01F10/10 , G11B5/68 , C09D3/72 , C09D3/76 , C09D3/81
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) a high molecular weight thermoplastic linear polyurethane, (2) a polyvinylformal binder, a phenoxy resin, a cellulose ester or a vinyl chloride copolymer and (3) an OH-containing polyurethane which is crosslinked with polyisocyanates.
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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：DE2364879A1
公开(公告)日：1975-07-03
申请号：DE2364879
申请日：1973-12-28
Applicant: BASF AG
Abstract: A magnetic recording medium consists of a non-magnetic base, on which the magnetic coating is a layer of a dispersion, containing a lubricant, of a magnetic pigment in a polymeric binder. The lubricant is a block copolymer which contains siloxane units and alkyleneoxy units of 2 to 4 carbon atoms, the alkyleneoxy units being bonded to the polysiloxane radical through a Si-O-C or Si-C group. The use of this lubricant gives a magnetic recording medium which has the advantages of good fluid lubrication and an excellent coefficient of friction which does not vary with time.
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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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Patent Agency Ranking
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：DE3736998A1
公开(公告)日：1989-05-11
申请号：DE3736998
申请日：1987-10-31
Applicant: BASF AG
Inventor： LEHNER AUGUST , KOHL ALBERT , ROLLER HERMANN , LENZ WERNER DR , KREITNER LUDWIG DR , KOPKE HELMUT , SOMMERMANN FRIEDRICH DR , RICKER ERNST DR
IPC: C09D5/23 , C09D175/00 , C09D175/04 , G11B5/70 , G11B5/702
Abstract: The invention relates to magnetic recording media consisting of a nonmagnetic substrate and at least one magnetisable layer bonded thereon and based on a magnetic material finely divided in a binder, consisting of at least 50% by weight of polyurethane, and further conventional additives, the magnetisable layer furthermore containing a saturated, branched hydrocarbon.
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公开(公告)号：DE3469082D1
公开(公告)日：1988-03-03
申请号：DE3469082
申请日：1984-11-09
Applicant: BASF AG
Inventor： LEHNER AUGUST , KOPKE HELMUT , ROLLER HERMANN , BALZ WERNER DR , GRAU WERNER DR , KOESTER EBERHARD DR , SOMMERMANN FRIEDRICH DR
IPC: C09D5/23 , C09D127/04 , C09D127/06 , C09D175/00 , C09D175/02 , C09D175/04 , G11B5/702 , H01F10/10
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) a high molecular weight thermoplastic linear polyurethane, (2) a polyvinylformal binder, a phenoxy resin, a cellulose ester or a vinyl chloride copolymer and (3) an OH-containing polyurethane which is crosslinked with polyisocyanates.
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公开(公告)号：DE3469081D1
公开(公告)日：1988-03-03
申请号：DE3469081
申请日：1984-11-09
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
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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公开(公告)号：DE3151590A1
公开(公告)日：1983-07-07
申请号：DE3151590
申请日：1981-12-28
Applicant: BASF AG
Inventor： MELZER MILENA DIPL ING , SCHNEIDER NORBERT , KOPKE HELMUT , SCHOETTLE KLAUS DIPL ING , KOESTER EBERHARD DIPL PHYS DR , BALZ WERNER DIPL CHEM DR , GRAU WERNER DIPL CHEM DR
IPC: C08L75/06 , C09D5/23 , C09D171/00 , C09D171/10 , C09D175/06 , G11B5/70 , G11B5/702 , G11B5/84 , G11B5/842 , G11B5/68 , B05D3/00 , B05D5/12
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