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

IPC: G11B5/842 ,  C09D5/23 ,  C09D7/12 ,  G11B5/70 ,  G11B5/702 ,  G11B5/73 ,  G11B5/735 ,  G11B5/84

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：DE3432016A1

公开(公告)日：1986-03-13

申请号：DE3432016

申请日：1984-08-31

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

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.

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.

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

IPC: G11B5/845 ,  C09D5/23 ,  G11B5/70 ,  G11B5/702 ,  G11B5/842 ,  G11B5/84 ,  B05D5/12 ,  C09D3/16 ,  C09D3/72 ,  G11B5/68

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.

公开(公告)号：BR8201681A

公开(公告)日：1983-02-16

申请号：BR8201681

申请日：1982-03-25

Applicant: BASF AG

Inventor： BLUM RAINER ,  LEHNER AUGUST ,  SCHENCK HANS UWE

IPC: C09K3/10 ,  C08G18/00 ,  C08G18/08 ,  C08G18/70 ,  C08G18/79 ,  C08G18/80 ,  C09D5/00 ,  C09D175/00 ,  C09J175/00 ,  C08G18/83 ,  C08J3/08

公开(公告)号：DE2861559D1

公开(公告)日：1982-03-04

申请号：DE2861559

申请日：1978-11-25

Applicant: BASF AG

Inventor： MOTZ HERBERT DR ,  LEHNER AUGUST ,  HARTMANN HEINRICH DR ,  BACHMANN RUDOLF DR ,  HARTMANN HANS-JOERG DR ,  FRISCHMANN HARALD DR ,  FALK ROLAND DR ,  HACK JOACHIM ,  VELIC MILAN DR ,  KOPKE HELMUT

IPC: C08G18/66 ,  C09D5/23 ,  G11B5/70 ,  G11B5/702

Abstract: Magnetic recording media comprising a non-magnetic base and, applied thereto, a firmly adhering magnetic coating based on a finely divided magnetic pigment dispersed in a binder which contains at least 50 percent by weight of a special polyurethane elastomer, namely a thermoplastic polyurethane which is soluble in tetrahydrofuran, is free from isocyanate groups and has been manufactured from (A) 1 mole of a hydroxyl-containing polyester having a molecular weight of from 700 to 2,500, (B) from 0.3 to 3 moles of a linear aliphatic diol of 2 to 10 carbon atoms, (C) from 0.05 to 0.4 mole of a triol of 3 to 10 carbon atoms, and (D) from 1.35 to 4.7 moles of a diisocyanate of 6 to 30 carbon atoms, the amount of NCO groups being approximately equivalent to the amount of OH groups of the sum of components (A) to (C).

公开(公告)号：DE2401086A1

公开(公告)日：1975-07-24

申请号：DE2401086

申请日：1974-01-10

Applicant: BASF AG

Inventor： HARTMANN HEINRICH DIPL CHEM DR ,  SPOOR HERBERT DIPL CHEM DR ,  LEHNER AUGUST

IPC: C08F18/10 ,  C08G18/72 ,  C08F118/10

Abstract: Polymeric materials of K value 8-50 and comprising units of formula (I) where R and R' are indep. chosen from 2-15C linear alkylene. or 3-24C branched alkylene, opt. substd. 6-20C alicyclic, 12-20C aralicyclic, 7-16C araliphatic and 6-20C aromatic gps. The polymers are used in the prodn. of adhesives, foam plastics and elastomers and are partic. suitable for prepg. coatings and as hardeners for polyurethanes.

公开(公告)号：DE3929168A1

公开(公告)日：1991-03-07

申请号：DE3929168

申请日：1989-09-02

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