公开(公告)号：CH493902A

公开(公告)日：1970-07-15

申请号：CH1269768

申请日：1968-08-23

Applicant: BASF AG

Inventor： SCHNELL GEORG DR ,  HARTMANN JOB-WERNER DR ,  KOEHNLEIN ERNST DR ,  FRITZ HAMMEN

IPC: G03B21/32 ,  G11B23/037 ,  G11B25/06

公开(公告)号：DE1962645A1

公开(公告)日：1971-06-16

申请号：DE1962645

申请日：1969-12-13

Applicant: BASF AG

Inventor： SCHNELL GEORG DR ,  NEUMAIR GEORG DR ,  HARTMANN JOB-WERNER DR ,  HAMMON FRITZ ,  STRITZINGER HEINZ DIPL-ING

IPC: G11B5/70 ,  G11B5/74 ,  G11B5/78

公开(公告)号：CH498465A

公开(公告)日：1970-10-31

申请号：CH1946168

申请日：1968-12-31

Applicant: BASF AG

Inventor： SCHNELL GEORG DR ,  HARTMANN JOB-WERNER DR ,  HEINZ STRITZINGER ,  SENKPIEL WERNER DR ,  HARTMANN HANS-JOERG DR ,  ERICH ALBERT DR SOBOTTA ,  UHL KARL DR ,  WERST GERHARD DR

IPC: C08K3/22 ,  C09D5/23 ,  G11B5/702 ,  G11B5/68

公开(公告)号：DE2456960A1

公开(公告)日：1976-06-16

申请号：DE2456960

申请日：1974-12-03

Applicant: BASF AG

Inventor： HAMMON FRITZ ,  OHLINGER MANFRED DR ,  STRITZINGER HEINZ DIPL ING ,  HARTMANN JOB-WERNER DR

IPC: G11B5/716 ,  G11B5/70 ,  H01F10/00

Abstract: A laminated magnetogram carrier, consisting of a substrate with >=2 magnetic layers contg. an acicular magnetic material in an organic binder system, has a toper layer contg. a magnetic pigment with a high static signal-to-noise voltage ratio (S/N) pref. over 61.0 dB whilst the S/N is lower pref. below 61.0 dB for the pigment in the lower layer the coercivity of the materials differing by a max. of +10%. Flexible magnetogram carriers satisfying high requirements w.r.t. static noise are obtd. without the exclusive use of pigments with the required S/N value.

公开(公告)号：DE2060214A1

公开(公告)日：1972-06-15

申请号：DE2060214

申请日：1970-12-08

Applicant: BASF AG

Inventor： HARTMANN HEINRICH DR ,  HARTMANN JOB-WERNER DR ,  MARX MATTHIAS DR ,  GRAU WERNER DR ,  WERST GERHARD DR

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

Abstract: A magnetic recording vehicle is mfd. by preparing a dispersion of a finely divided magnetic pigment (eg. gamma-Fe(III)-oxide) in a binder based on a copolymer of monoolefinically unsatd. monomers and an inert solvent (eg. toluene), with opt. admixture of usual additives; applying a layer of the dispersion onto a substrate (eg. a PVC or polyester film or tape) and drying or hardening. The copolymer used forms hard coatings and contains (A) 5-40 wt.% of units of formula R(CH2)C-X-Y-O-CO-CH2-Z (where X is COO or S; Y is divalent aliphatic 2-12 C (oxa)hydrocarbon; Z is COCH2 or CN; and R is R when X is S, or H or CH3 when X is COO; and (B) 60-95 wt.% of units of acrylates and/or methacrylates which may be replaced by up to 30% units of other comonomer units. Good abrasion resistance hence long service life.

公开(公告)号：DE1774852A1

公开(公告)日：1972-01-20

申请号：DE1774852

申请日：1968-09-21

Applicant: BASF AG

Inventor： HARTMANN JOB-WERNER DR ,  STRITZINGER HEINZ DIPL-ING ,  SCHNELL GEORG DR ,  SENKPIEL WERNER DR ,  HARTMANN HANS-JOERG DR ,  SOBOTTA ERICH DR ,  UHL KARL DIPL-ING DR ,  WERST GERHARD DR

IPC: C09D5/23 ,  G11B5/702 ,  G11B5/68

公开(公告)号：DE1570254B1

公开(公告)日：1971-10-14

申请号：DE1570254

申请日：1965-04-10

Applicant: BASF AG

Inventor： WILHEM HANS DR ,  MARX MATTHIAS DR ,  BRUNNMUELLER FRIEDRICH DR ,  ALLWINN ROLAND DR ,  VLACHOS ACHILLES DR ,  SANDER HANS DR ,  HARTMANN JOB-WERNER DR ,  BACHMANN RUDOLF DR

IPC: C08F20/58 ,  C08F20/62 ,  C08F22/00 ,  C08F15/40

公开(公告)号：CH482739A

公开(公告)日：1969-12-15

申请号：CH379066

申请日：1966-03-31

Applicant: BASF AG

Inventor： WILHELM HANS DR ,  MARX MATTHIAS DR ,  BRUNNMUELLER FRIEDRICH DR ,  ALLWINN ROLAND DR ,  VLACHOS ACHILLES DR ,  SANDER HANS DR ,  HARTMANN JOB-WERNER DR ,  BACHMANN RUDOLF DR

IPC: C08F20/58 ,  C08F20/62 ,  C08F22/00 ,  C08F15/40 ,  C08F19/00

公开(公告)号：DE2157685A1

公开(公告)日：1973-05-24

申请号：DE2157685

申请日：1971-11-20

Applicant: BASF AG

Inventor： HARTMANN HANS-JOERG DR ,  HARTMANN JOB-WERNER DR ,  FRISCHMANN HARALD DR ,  VAETH GUENTER

IPC: C09D5/23 ,  G11B5/702 ,  G11B5/68

Abstract: Magnetic recording media comprising a non-magnetic support and a magnetic layer based on a dispersion of finely divided magnetic pigment in a binder consisting of a mixture of a special soluble hydroxyl-free polyester urethane.

公开(公告)号：DE1958231A1

公开(公告)日：1971-05-27

申请号：DE1958231

申请日：1969-11-20

Applicant: BASF AG

Inventor： WINTERSBERGER KARL DR ,  WAWERSIK HENNING DR ,  HARTMANN JOB-WERNER DR

IPC: G11B5/66 ,  C23C18/16 ,  C23C18/20 ,  C23C18/31 ,  C23C18/50 ,  G11B5/64 ,  G11B5/73 ,  G11B5/738 ,  H01F10/06 ,  G11B5/84

Abstract: 1321114 Depositing magnetic coatings BADISCHE ANILIN & SODA-FABRIK AG 19 Nov 1970 [20 Nov 1969] 54967/70 Heading C7F [Also in Division H1] In making magnetic recording media (see Division H1), a 0À1-2Á thick layer of magnetisable metal, such as iron, nickel, cobalt or ferromagnetic alloys thereof, is deposited by chemical reduction on a substrate comprising an inorganic pigment dispersed in a polymeric binder, In an Example a substrate comprising rutile TiO 2 in a vinyl copolymer is pre-treated with solutions of caustic soda, tin (II) chloride and palladium (II) chloride. A film of cobalt (0À5Á thick, roughness