公开(公告)号：DE3927659A1

公开(公告)日：1991-02-28

申请号：DE3927659

申请日：1989-08-22

Applicant: BASF AG

Inventor： KEPPELER UWE DR ,  BOBRICH MICHAEL DR ,  HEIL GUENTER DR ,  ROLLER HERMANN ,  LEHNER AUGUST ,  LENZ WERNER DR ,  SCHULZ GUENTHER DR

IPC: C08G18/12 ,  C08G18/66 ,  C08G18/76 ,  C08L75/04 ,  C09D5/23 ,  C09D175/00 ,  C09D175/04 ,  C09D177/02 ,  C09D179/08 ,  G11B5/702

Abstract: The invention relates to magnetic recording media, consisting of a nonmagnetic substrate and at least one magnetisable layer applied firmly thereon and based on a polyurethane binder, the binder consisting of at least 50% by weight of a branched polyurethane elastomer having urea groups at the chain ends.

公开(公告)号：DE3843445A1

公开(公告)日：1990-06-28

申请号：DE3843445

申请日：1988-12-23

Applicant: BASF AG

Inventor： LEHNER AUGUST ,  SUETTINGER RUDOLF DR ,  BOBRICH MICHAEL DR ,  DIKOW HERMANN DR ,  ROLLER HERMANN ,  LENZ WERNER DR ,  KREITNER LUDWIG DR ,  LOCH WERNER DR ,  SCHNEIDER NORBERT

IPC: C09D5/23 ,  C09D127/04 ,  C09D127/06 ,  C09D175/00 ,  C09D175/04 ,  G11B5/70 ,  G11B5/702 ,  G11B5/706

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.

公开(公告)号：DE3800196A1

公开(公告)日：1989-07-20

申请号：DE3800196

申请日：1988-01-07

Applicant: BASF AG

Inventor： SCHNEIDER NORBERT ,  KREIMES NORBERT ,  BETTINGER GUENTER ,  BOEHM UDO ,  KREITNER LUDWIG DR ,  LEHNER AUGUST ,  LENZ WERNER DR ,  NERSCHBACH GERHARD ,  GRAU WERNER DR ,  NIEDERBERGER WERNER ,  STRANSKY REINHARD

IPC: B24B7/13 ,  B24B21/00 ,  B24B21/04 ,  G11B5/84

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.

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

IPC: G11B5/845 ,  C09D5/23 ,  G11B5/70 ,  G11B5/702 ,  G11B5/842

公开(公告)号：DE3465389D1

公开(公告)日：1987-09-17

申请号：DE3465389

申请日：1984-09-06

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

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.

公开(公告)号：DE3347532A1

公开(公告)日：1985-07-11

申请号：DE3347532

申请日：1983-12-30

Applicant: BASF AG

Inventor： LEHNER AUGUST ,  KOHL ALBERT ,  BALZ WERNER DR ,  SOMMERMANN FRIEDRICH DR ,  VELIC MILAN DR ,  GRAU WERNER DR ,  BAUR REINHOLD DR

IPC: C09D5/23 ,  C09D7/12 ,  C10M105/24 ,  C10N10/04 ,  C10N40/18 ,  G11B5/71 ,  G11B5/72 ,  G11B5/68 ,  H01F10/28 ,  C09D3/727 ,  B05D5/12

Abstract: Magnetic recording media consisting of a non-magnetic base and, applied thereto, one or more firmly adhering magnetizable layers based on magnetic material finely dispersed in a polymeric binder, at least one lubricant and further conventional additives, wherein the lubricant used is zinc stearate which has been rendered hydrophilic.

公开(公告)号：DE3325556A1

公开(公告)日：1985-01-24

申请号：DE3325556

申请日：1983-07-15

Applicant: BASF AG

Inventor： ROLLER HERMANN ,  LEHNER AUGUST ,  HACK JOACHIM ,  GRAU WERNER DR ,  BALZ WERNER DR ,  BAUR REINHOLD DR

IPC: G11B5/842 ,  C09D5/23 ,  C09D7/12 ,  G11B5/70 ,  G11B5/702 ,  G11B5/73 ,  G11B5/735 ,  G11B5/84 ,  G11B5/68 ,  C09D3/16 ,  C09D3/72 ,  B05D5/12

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.

公开(公告)号：DE3227163A1

公开(公告)日：1984-01-26

申请号：DE3227163

申请日：1982-07-21

Applicant: BASF AG

Inventor： LEHNER AUGUST ,  VELIC MILAN DR ,  KOPKE HELMUT ,  MELZER MILENA ,  BALZ WERNER DR ,  LENZ WERNER DR ,  BAUR REINHOLD DR

IPC: C08L75/04 ,  G11B5/702 ,  G11B5/70

Abstract: The invention relates to magnetic recording supports 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 mixture of a polyurea urethane binder containing OH groups, which is crosslinked with a polyisocyanate, and a physically drying binder in a mixing ratio of 1:0.8 to 1:0.1.