公开(公告)号：DE58909687D1

公开(公告)日：1996-07-11

申请号：DE58909687

申请日：1989-12-19

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：DE59005424D1

公开(公告)日：1994-05-26

申请号：DE59005424

申请日：1990-08-16

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：DE3886504D1

公开(公告)日：1994-02-03

申请号：DE3886504

申请日：1988-10-25

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.

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：DE3274770D1

公开(公告)日：1987-01-29

申请号：DE3274770

申请日：1982-07-16

Applicant: BASF AG

Inventor： SCHORNICK GUNNAR DR ,  JUN MONG-JON DR ,  SANNER AXEL DR ,  LEHNER AUGUST ,  LENZ WERNER DR ,  RICHTER PETER DR ,  ECKELL ALBRECHT DR

IPC: G03F7/035 ,  C08F299/06 ,  C08G18/66 ,  C08G18/67 ,  G03F7/027 ,  G03F7/032 ,  G03F7/26 ,  G03C1/70 ,  G03C1/68 ,  G03F7/10

公开(公告)号：DE3427681A1

公开(公告)日：1986-02-06

申请号：DE3427681

申请日：1984-07-27

Applicant: BASF AG

Inventor： LEHNER AUGUST ,  HEIL GUENTER DR ,  LENZ WERNER DR ,  BALZ WERNER DR ,  KOHL ALBERT ,  SCHORNICK GUNNAR DR

IPC: G11B5/842 ,  B05D5/12 ,  G11B5/70 ,  G11B5/702

公开(公告)号：DE3161297D1

公开(公告)日：1983-12-08

申请号：DE3161297

申请日：1981-01-28

Applicant: BASF AG

Inventor： LEHNER AUGUST ,  KUD ALEXANDER ,  HARTMANN HEINRICH DR

IPC: C08G18/00 ,  C08G18/08 ,  C08G18/64 ,  C08G18/67 ,  C08G18/83 ,  C08J3/07

公开(公告)号：DE59007831D1

公开(公告)日：1995-01-12

申请号：DE59007831

申请日：1990-08-24

Applicant: BASF AG

Inventor： BOBRICH MICHAEL DR ,  ROLLER HERMANN ,  LEHNER AUGUST ,  KEPPELER UWE DR ,  SUETTINGER RUDOLF DR ,  LOCH WERNER DR ,  LENZ WERNER DR ,  SCHULZ GUENTHER DR

IPC: C08G18/12 ,  C08G18/61 ,  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, the binder consisting of at least 50% by weight of a low molecular weight branched polyureaurethane having OH-containing groups at the chain ends, and in which the sliding properties are improved and the friction is reduced by incorporating siloxanes.

公开(公告)号：DE4142635A1

公开(公告)日：1993-06-24

申请号：DE4142635

申请日：1991-12-21

Applicant: BASF AG

Inventor： SCHNEIDER NORBERT ,  LEHNER AUGUST ,  KLEIN URSULA ,  LENZ WERNER DR ,  BALZ WERNER DR ,  KOHL ALBERT ,  BETTINGER GUENTER

IPC: F02B75/02 ,  G11B5/708

Abstract: A magnetic recording material is produced by spreading a dispersion of anisotropic material particles together with other particles in a fluid solution over the surface of a corner. The solution consists of a polymer binding agent in an organic fluid. The material is passed through a magnetic field to orientate the magnetic particles. The mixture has carbon in a water repellent polysilicic acid in 0.3 to 5 percent by weight. ADVANTAGE - Avoids high wear resistant over wide temperature range.

公开(公告)号：DE3570543D1

公开(公告)日：1989-06-29

申请号：DE3570543

申请日：1985-07-22

Applicant: BASF AG

Inventor： LEHNER AUGUST ,  BALZ WERNER DR ,  LENZ WERNER DR ,  KOHL ALBERT ,  HEIL GUENTER DR

IPC: C09D5/23 ,  C09D175/04 ,  C09D175/06 ,  C09D175/08 ,  C09D175/14 ,  G11B5/702 ,  G11B5/842

Abstract: Layer-type magnetic recording media are produced by dispersing a finely divided magnetically anisotropic material in a binder which consists of not less than 40% of a radiation-curable aqueous binder dispersion, applying the dispersion onto a non-magnetic base, orienting the magnetically anisotropic material and drying and crosslinking the applied layer by means of UV or high-energy electron radiation.