公开(公告)号：DE3574192D1

公开(公告)日：1989-12-14

申请号：DE3574192

申请日：1985-08-19

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：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：DE3508715A1

公开(公告)日：1986-09-18

申请号：DE3508715

申请日：1985-03-12

Applicant: BASF AG

Inventor： NAGEL PETER ,  DINGLER ROBERT ,  FEYH HANS-OTTO ,  FALK ROLAND DR ,  HACK JOACHIM

IPC: G11B15/08 ,  G11B23/30 ,  G11B5/62

Abstract: The reflector mark (2), consisting exclusively of a metal layer, at the beginning and end of a magnetic tape (1) is transferred to the said tape with the aid of a carrier strip (6). For this purpose, the metal layer provided with adhesive (4) is pressed on to the magnetic tape by means of the carrier strip, on which the said layer is held by a coupling agent layer (7), at a temperature at which the metal layer detaches itself from the coupling agent and the adhesive is activated.

公开(公告)号：DE2157650A1

公开(公告)日：1973-05-30

申请号：DE2157650

申请日：1971-11-20

Applicant: BASF AG

Inventor： WOELLHAF JOSEF DIPL ING ,  BALZ WERNER DR ,  FALK ROLAND DR ,  SCHEFFEL DIETER ,  RICHTER VOLKER DIPL ING ,  WILLMANN PAUL

IPC: B05D1/00 ,  G11B5/842 ,  G11B5/84

公开(公告)号：DE3168102D1

公开(公告)日：1985-02-21

申请号：DE3168102

申请日：1981-03-10

Applicant: BASF AG

Inventor： KOESTER EBERHARD DR ,  DEIGNER PAUL DR ,  SCHAEFER DIETER DR ,  UHL KARL DR ,  FALK ROLAND DR

IPC: G11B5/84 ,  G11B5/845

Abstract: A device for magnetically orienting the magnetizable particles of magnetic recording media in a preferred direction, which media are obtained by applying a coating of anisotropically magnetic particles finely dispersed in a solution of an organic binder system and conventional additives to a non-magnetic base, and subsequently solidifying the coating, by the action, on the still fluid coating, of the magnetic fields produced by two E-shaped electromagnets arranged symmetrically with respect to, and in mirror-image relationship to, the plane of the said coating.

公开(公告)号：DE2200023A1

公开(公告)日：1973-07-26

申请号：DE2200023

申请日：1972-01-03

Applicant: BASF AG

Inventor： BALZ WERNER DR ,  FALK ROLAND DR ,  SCHEFFEL DIETER ,  WILLMANN PAUL ,  RICHTER VOLKER DIPL-ING ,  WOELLAF JOSEF DIPL-ING

IPC: B05D1/00 ,  G11B5/842 ,  G11B5/84

公开(公告)号：DE2150993A1

公开(公告)日：1973-04-19

申请号：DE2150993

申请日：1971-10-13

Applicant: BASF AG

Inventor： BALZ WERNER DR ,  FALK ROLAND DR ,  FEHRENBACH HUBERT

IPC: C08J5/14 ,  G11B5/84 ,  C08F29/26

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：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：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).