公开(公告)号：DE3678335D1

公开(公告)日：1991-05-02

申请号：DE3678335

申请日：1986-05-15

Applicant: BASF AG

Inventor： HIBST HARTMUT DR ,  RUDOLF PETER DR ,  JAKUSCH HELMUT DR

IPC: H01F1/11 ,  C01G29/00 ,  C01G49/00 ,  C01G49/06 ,  C01G51/00 ,  C09D5/23 ,  G11B5/706 ,  H01F1/113

公开(公告)号：DE3918582A1

公开(公告)日：1990-12-13

申请号：DE3918582

申请日：1989-06-07

Applicant: BASF AG

Inventor： HARTH KLAUS DR ,  HIBST HARTMUT DR ,  SONNBERGER RALF DR ,  STEININGER HELMUT DR

IPC: C01B21/072 ,  C23C14/06

公开(公告)号：DE3842635A1

公开(公告)日：1990-06-21

申请号：DE3842635

申请日：1988-12-17

Applicant: BASF AG

Inventor： HIBST HARTMUT DR ,  WERNER AREND DR ,  HACK JOACHIM ,  MANNSPERGER HEINRICH DR ,  HITZFELD MICHAEL DR ,  GRAU WERNER DR ,  HEIL GUENTER DR ,  HOLL NORBERT

IPC: G11B23/03 ,  C10M105/34 ,  C10N20/06 ,  C10N40/18 ,  G11B5/64 ,  G11B5/66 ,  G11B5/72 ,  G11B5/725 ,  G11B5/73 ,  G11B5/84 ,  G11B23/033

Abstract: The invention relates to magnetic recording media in disc form, essentially composed of a flexible base material, a ferromagnetic thin metal layer applied on at least one side, and a protective and gliding layer, essentially composed of carbon, located on this metal layer, a process for producing these recording media and information memory containing these recording media.

公开(公告)号：DE3726464A1

公开(公告)日：1989-02-16

申请号：DE3726464

申请日：1987-08-08

Applicant: BASF AG

Inventor： WERNER AREND DR ,  HIBST HARTMUT DR ,  HAEDICKE ERICH DR ,  KRONENBITTER JOHANN DR

IPC: G11B5/84 ,  G11B5/85 ,  G11B5/851 ,  H01F10/26

公开(公告)号：DE3273566D1

公开(公告)日：1986-11-06

申请号：DE3273566

申请日：1982-07-16

Applicant: BASF AG

Inventor： HIBST HARTMUT DR ,  KULLMANN UDO DR

IPC: C01G49/00 ,  C01G51/00 ,  C01G53/00 ,  C04B35/00 ,  G11B5/706 ,  H01F1/11 ,  H01F1/36

Abstract: A process for the preparation of finely divided ferrites of the general formula MeFe2O4(I) where Me=aMn+bNi+cZn+dCo+eFe(II), and the atomic weight ratios a, b, c, d and e are each from 0 to 1 and their sum is 1, or M21Me21Fe12O22(II) where M1 is barium, strontium, calcium and/or lead, and Me1 is divalent manganese, copper, iron, cobalt, nickel, zinc, magnesium and/or equimolar amounts of lithium and trivalent iron, or M2(Me2Ti)xFe12-2xO19(III) where M2 is barium or strontium, Me2 is zinc, nickel and/or cobalt and x is from 0 to 1.5, wherein the aqueous solutions of the salts required for the particular composition are reacted with an aqueous solution of sodium carbonate and/or potassium carbonate, the water is removed, the dry salt mixture is heated at from 800 DEG to 1200 DEG C., and the resulting finely divided ferrite of the predetermined composition is isolated by leaching with water.

公开(公告)号：DE3437657A1

公开(公告)日：1986-04-17

申请号：DE3437657

申请日：1984-10-13

Applicant: BASF AG

Inventor： WERNER AREND DR ,  HIBST HARTMUT DR ,  SCHOMANN KLAUS DIETER DR

IPC: B41M5/382 ,  G11B7/24 ,  G11B7/243 ,  G11B7/253 ,  G11B7/2531 ,  G11B7/257 ,  G11B7/26

公开(公告)号：DE3435698A1

公开(公告)日：1986-04-03

申请号：DE3435698

申请日：1984-09-28

Applicant: BASF AG

Inventor： HIBST HARTMUT DR

IPC: C01G3/00 ,  C01G9/00 ,  C01G45/00 ,  C01G49/00 ,  C01G51/00 ,  C01G53/00 ,  C04B35/26 ,  C08K3/22 ,  C08K3/24 ,  C09C1/00 ,  C09C1/22 ,  C09C1/24 ,  C09D5/23 ,  G11B5/706 ,  H01F1/117 ,  H01F1/36 ,  H01F1/37 ,  H01F1/44 ,  C01G49/02 ,  G11B5/84 ,  C09D11/00

Abstract: A process for the preparation of ferrite powders which have a particle fineness which can be set to a defined value, of the general composition M(II)xFe(II)1-xFe(III)2O4 and M(II)xFe(III)3-xO4.5-0.5x where M is Mg, Mn, Co, Ni, Cu and/or Zn and x is from 0 to 1, and have an essentially isotropic particle shape.

公开(公告)号：DE3342218A1

公开(公告)日：1984-06-20

申请号：DE3342218

申请日：1983-11-23

Applicant: BASF AG

Inventor： WISSEROTH KARL DR ,  HIBST HARTMUT DR

IPC: H01F1/113

Abstract: A permanent magnet is composed of finely divided magnetic material and a binder which holds it together and is water-soluble.

公开(公告)号：ES2133599T3

公开(公告)日：1999-09-16

申请号：ES95101967

申请日：1995-02-14

Applicant: BASF AG

Inventor： TENTEN ANDREAS DR ,  MARTIN FRIEDRICH-GEORG DR ,  HIBST HARTMUT DR ,  MAROSI LASZLO DR ,  KOHL VERONIKA DR

IPC: C01G53/00 ,  B01J23/00 ,  B01J23/88 ,  B01J23/885 ,  B01J23/887 ,  B01J27/199 ,  B01J35/00 ,  C01G39/02 ,  C07B61/00 ,  C07C51/25 ,  C07C57/055

公开(公告)号：DE59505873D1

公开(公告)日：1999-06-17

申请号：DE59505873

申请日：1995-02-09

Applicant: BASF AG

Inventor： MARTIN FRIEDRICH-GEORG DR ,  HIBST HARTMUT DR ,  TENTEN ANDREAS DR

IPC: C01G1/00 ,  B01J23/88 ,  B01J23/885 ,  B01J27/14 ,  B01J27/195 ,  B01J27/199 ,  B01J35/00 ,  C01G1/02 ,  C01G39/00 ,  C07B61/00 ,  C07C51/25 ,  C07C57/055

Abstract: Multimetal oxide compsn. of formula (I) is new: (A)p(B)q(I): A = Mo12X aX bX cX dSeX fO x; B = X 12CugX hOy; X = P, As, B, Ge and/or Si; X = V, Nb and/or W; X = H, up to 97 mole-% of which may be replaced by K, Rb, Cs and/or NH4; X = Sb and/or Bi; X = Re and/or Rh; X = Mp, W, Nb and/or Ta; X = Li, Na, K, Rb, Cs and/or NH4; a = 1-6; b, d = 0-6; c = 3-5; e, f = 0-3; g = 4-24; h = 0-20; x, y = values depending on the valency and content of elements other than O; p, q = values other than O, with the ratio p/q = 12:0.1 to 12:48. The A and B fractions are each in the form of 3D zones, which differ in chemical compsn. from their local surroundings, and the relative distribution of the A and B zones is as in a mixt. of finely-divided A and finely-divided B.