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.

公开(公告)号：DE3381028D1

公开(公告)日：1990-02-01

申请号：DE3381028

申请日：1983-07-11

Applicant: BASF AG

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

IPC: C08L75/04 ,  G11B5/702

Abstract: Magnetic recording media comprising a non-magnetic base which is provided with a magnetic layer which consists essentially of a dispersion of an anisotropic magnetic material in a mixture of an OH-containing polyurea-urethane binder, which is crosslinked with a polyisocyanate, with a physically drying binder.

公开(公告)号：DE2142105A1

公开(公告)日：1973-03-01

申请号：DE2142105

申请日：1971-08-23

Applicant: BASF AG

Inventor： BARZYNSKI HELMUT DR ,  MUELLER FRANZ-JOSEF DR ,  JUN MONG-JON DR ,  VELIC MILAN DR

IPC: C08F2/50 ,  G03F7/029 ,  C08F1/20

Abstract: The polymsn of the unsatd, cpds (e.g. vinyl cpds) is effected in the presence of coloured transition metal carbonyls as photoinitiators and polyhalo-org cpds as co-catalysts. Prefd carbonyl is biscylcopentadienyl iron dicarbonyl and co-catalyst is 7 5-dichloro-1,4-bis-dichloromethyl benzene.

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.

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.

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：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：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：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：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.