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公开(公告)号：HK95186A
公开(公告)日：1986-12-19
申请号：HK95186
申请日：1986-12-11
Applicant: BASF AG
Inventor： BALZ WERNER DR , MUENZNER WULF DR , SCHOMANN KLAUS DIETER DR , BERGER HEINZ , ROOS ROLAND
IPC: G11B15/60 , G11B23/04 , G11B23/087 , G11B23/50 , H05F3/02
Abstract: In a tape cassette, particularly a video tape cassette, equalization of electrostatic charges between the two faces of the tape is effected by a connector element or connector elements electrically connecting at least one of two electrically conducting guide elements contacting the front of the tape and provided on the two sides, respectively, of the cassette with at least the associated one of two electrically conducting tape deflecting elements provided in the two respective front corners of the tape cassette. In this manner sticking of the tape to the deflecting elements due to electrostatic attraction therebetween and also the build-up of electrostatic charges along the tape path parallel to the front of the cassette housing due to the transporting of such charges from the deflecting elements as a result of the tape travel, are counteracted.
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公开(公告)号：AT24251T
公开(公告)日：1986-12-15
申请号：AT83105855
申请日：1983-06-15
Applicant: BASF AG
Inventor： FITTERER HORST , ROOS ROLAND , MUENZNER WULF DR , BALZ WERNER DR , BERGER HEINZ
IPC: G11B23/04 , G11B23/087
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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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公开(公告)号：DE3332503A1
公开(公告)日：1985-03-28
申请号：DE3332503
申请日：1983-09-09
Applicant: BASF AG
Inventor： HEIL GUENTER DR , SPOOR HERBERT DR , LENZ WERNER DR , KOVACS JENOE DR , GRAU WERNER DR , BALZ WERNER DR , LEHNER AUGUST
IPC: C08F2/46 , C08F283/04 , C08G18/67 , C08L75/04 , C09D5/23 , C09D163/00 , C09D171/00 , C09D171/12 , C09D175/04 , C09D175/14 , G11B5/702 , G11B5/68 , B05D5/12
Abstract: Magnetic recording media comprise a non-magnetic base and one or more magnetic layers consisting of an organic binder matrix containing finely divided magnetic material, the said matrix being obtained by electron beam curing of a mixture of from 50 to 100% by weight of a polyurethane acrylate polymer possessing polymerizable double bonds and from 0 to 50% by weight of an acrylate and/or an acrylate prepolymer and/or an N-vinyl monomer and/or an N-vinyl prepolymer.
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公开(公告)号：DE3325555A1
公开(公告)日：1985-01-24
申请号：DE3325555
申请日：1983-07-15
Applicant: BASF AG
Inventor： LEHNER AUGUST , HACK JOACHIM , KRUCKER KARL DR , BALZ WERNER DR , ROEMER KARL HEINZ , RUDOLF PETER , FALK ROLAND DR , ECKERT GUENTER DR
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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：DE3675989D1
公开(公告)日：1991-01-17
申请号：DE3675989
申请日：1986-06-19
Applicant: BASF AG
Inventor： GRAU WERNER DR , KOHL ALBERT , KOVACS JENOE DR , BALZ WERNER DR , MUENZNER WULF DR
Abstract: Magnetic recording media, consisting of a non-magnetic base and a magnetic layer firmly bonded thereto, exhibit improved properties in sustained operation if, in the course of their production, a dispersion of inorganic particles in a solvent is applied to the magnetic layer, and the solvent is then removed.
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公开(公告)号：DE3576010D1
公开(公告)日：1990-03-15
申请号：DE3576010
申请日：1985-10-10
Applicant: BASF AG
Inventor： KOHL ALBERT , MELZER MILENA , LEHNER AUGUST , SCHNEIDER NORBERT , KOESTER EBERHARD DR , BALZ WERNER DR , SOMMERMANN FRIEDRICH DR , RICKER ERNST DR
IPC: G11B5/702 , C09D5/23 , C09D127/04 , C09D127/06 , C09D163/00 , C09D167/00 , C09D171/00 , C09D171/12 , C09D175/00 , C09D175/04 , C10M105/58 , C10N40/18 , G11B5/708 , G11B5/71
Abstract: In magnetic recording media consisting of a non-magnetic base and, bonded on top of this, one or more magnetizable layers based on magnetic material finely dispersed in a polymer binder, a lubricant and further conventional additives, the lubricant used is a triethanolamine esterified with oleic acid.
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公开(公告)号：DE3562304D1
公开(公告)日：1988-05-26
申请号：DE3562304
申请日：1985-07-22
Applicant: BASF AG
Inventor： LEHNER AUGUST , HEIL GUENTER DR , KOVACS JENOE DR , BALZ WERNER DR , LENZ WERNER DR
IPC: C09D5/23 , C09D175/04 , C09D175/14 , G11B5/702
Abstract: Magnetic recording media comprising a non-magnetic substrate and a magnetic layer comprising a finely divided magnetic material dispersed in an organic solvent soluble, crosslinkable, essentially linear, thermoplastic polyurethane which possesses acrylate side and terminal groups wherein said polyurethane is prepared by reacting poly- and/or diisocyanates with a mixture of (a) methacrylate - or acrylate - diols having molecular weights of from 146 to 3,000, (b) monoesters of methacrylic or acrylic acid and a diol having a molecular weight of from 116 to 300, and (c) other organic polydiol compounds which have molecular weights of from 400 to 5,000.
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公开(公告)号：DE3466819D1
公开(公告)日：1987-11-19
申请号：DE3466819
申请日：1984-07-10
Applicant: BASF AG
Inventor： LEHNER AUGUST , HACK JOACHIM , KRUCKER KARL DR , BALZ WERNER DR , ROEMER KARL HEINZ , RUDOLF PETER , FALK ROLAND DR , ECKERT GUENTER DR
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