公开(公告)号：DE3264672D1

公开(公告)日：1985-08-14

申请号：DE3264672

申请日：1982-09-09

Applicant: BASF AG

Inventor： BACHMANN RUDOLF DR ,  BALZ WERNER DR ,  GRAU WERNER DR ,  GUTERMANN WINFRIED ,  KOVACS JENOE DR ,  KRUCKER KARL DR ,  RUDOLF PETER ,  SCHAEFER DIETER DR ,  HACK JOACHIM

IPC: C09D5/23 ,  C09D137/00 ,  G11B5/70 ,  G11B5/702

公开(公告)号：DE3332504A1

公开(公告)日：1985-03-28

申请号：DE3332504

申请日：1983-09-09

Applicant: BASF AG

Inventor： HEIL GUENTER DR ,  LENZ WERNER DR ,  KOVACS JENOE DR ,  GRAU WERNER DR ,  BALZ WERNER DR

IPC: C08F2/54 ,  C08G18/67 ,  C09D5/23 ,  C09D163/00 ,  C09D175/04 ,  C09D175/14 ,  G11B5/702 ,  G11B5/68 ,  B05D5/12

Abstract: Magnetic recording media comprise a non-magnetic base and one or more magnetic layers consisting of an organic binder matrix containing finely divided magnetic material, the said matrix being obtained by electron beam curing of a mixture of from 70 to 90% by weight of a polyurethane acrylate polymer possessing polymerizable double bonds and from 10 to 30% by weight of one or more copolymerizable compounds.

公开(公告)号：DE3228669A1

公开(公告)日：1984-02-02

申请号：DE3228669

申请日：1982-07-31

Applicant: BASF AG

Inventor： STECK WERNER DR ,  RUDOLF PETER DR ,  SARNECKI WILHELM DR ,  LOESER WERNER DR ,  KOVACS JENOE DR ,  JAKUSCH HELMUT DR

IPC: G11B5/706 ,  B22F1/00 ,  B22F9/22 ,  C01G49/02 ,  C09D5/23 ,  C09D7/12 ,  H01F1/06 ,  B22F9/18 ,  C01G49/00 ,  G11B5/62

Abstract: Acicular ferromagnetic metal particles consisting essentially of iron are prepared by a process wherein acicular iron(III) oxide hydroxide provided with a shape-stabilizing surface coating, or iron(III) oxide obtained therefrom by dehydration, is reduced by means of a decomposable organic compound and hydrogen.

公开(公告)号：CH611636A5

公开(公告)日：1979-06-15

申请号：CH315875

申请日：1975-03-12

Applicant: BASF AG

Inventor： KOVACS JENOE DR ,  MARX MATTHIAS DR ,  JUNG HANS DIPL ING DR

IPC: C08G73/00 ,  C08G73/16 ,  H01B3/30 ,  C09D5/25

Abstract: Process for the manufacture of polyester imides. Melamine, an at least tribasic carboxylic acid, a polyhydric alcohol and, optionally, an aromatic dicarboxylic acid are condensed at elevated temperature. The polyester imides are suitable, in the form of solutions, aqueous dispersions or melts, for use as baking enamels for metallic conductors.

公开(公告)号：CH603720A5

公开(公告)日：1978-08-31

申请号：CH796376

申请日：1976-06-22

Applicant: BASF AG

Inventor： KOVACS JENOE DR ,  JUNG HANS DR ,  MARX MATTHIAS DR ,  SPOOR HERBERT DR

IPC: C08G73/00 ,  C08G73/14 ,  C09D179/08 ,  H01B3/30 ,  H01B13/06

Abstract: A polyamide-imide precondensate which is solid at room temperature, but is fusible and soluble in polar solvents. It is manufactured by first condensing 1 mole of diamine with 2 moles of tricarboxylic acid anhydride in a diol as the solvent, to give a diimide-dicarboxylic acid, then esterifying the diimide-dicarboxylic acid with the diol and finally effecting the polycondensation by adding 1 mole of diamine per mole of diester. The precondensate may be used, as a melt, as a solution in organic solvents or as an aqueous dispersion, for coating electrical conductors.

公开(公告)号：DE2528251A1

公开(公告)日：1977-01-20

申请号：DE2528251

申请日：1975-06-25

Applicant: BASF AG

Inventor： KOVACS JENOE DR ,  JUNG HANS ,  MARX MATTHIAS DR ,  SPOOR HERBERT DR

IPC: C08G73/00 ,  C08G73/14 ,  C09D179/08 ,  H01B3/30

Abstract: A polyamide-imide precondensate which is solid at room temperature, but is fusible and soluble in polar solvents. It is manufactured by first condensing 1 mole of diamine with 2 moles of tricarboxylic acid anhydride in a diol as the solvent, to give a diimide-dicarboxylic acid, then esterifying the diimide-dicarboxylic acid with the diol and finally effecting the polycondensation by adding 1 mole of diamine per mole of diester. The precondensate may be used, as a melt, as a solution in organic solvents or as an aqueous dispersion, for coating electrical conductors.

公开(公告)号：DE2351077A1

公开(公告)日：1975-04-24

申请号：DE2351077

申请日：1973-10-11

Applicant: BASF AG

Inventor： KOVACS JENOE DR ,  MARX MATTHIAS DR ,  SPOOR HERBERT DR ,  ROSCHKE WILFRIED ,  JUNG HANS DR-ING

IPC: C08J3/05 ,  C08L79/08 ,  C09D5/25 ,  H01B3/30 ,  C08G79/08 ,  C09J3/16

Abstract: Aq. polyesterimide dispersions contg. 20-60 wt.% polyesterimide as fine particles having particle size 5 mu, and opt. small amounts of flow control agents, dispersants and/or esterification catalysts, are prepd. by (1) breaking up a solidified melt of polyesterimide in dry condition at 100 degrees C to particle size 100 mu (2) grinding with water at 80 degrees C to particle size 5 (0.05-1.5) mu. Pref. used in prepn. of temp-resistant luting and impregnating compsns., for bonding and laminating foils, webs, papers and fibrous materials. Conc. dispersions are more easily processed than solns.; risk of fire is obviated.

公开(公告)号：DE2351075A1

公开(公告)日：1975-04-24

申请号：DE2351075

申请日：1973-10-11

Applicant: BASF AG

Inventor： POHLEMANN HEINZ DR ,  KOVACS JENOE DR ,  HANN ERNST WILHELM ,  JUNG HANS DR ING

IPC: C08L79/08 ,  C08J3/02 ,  C09J3/16

Abstract: Aq. polyesterimide dispersions, contg. polyesterimide as fine solid particles, having particle sizes 5 mu, are prepd. by (1) precipitating an opt. esterification catalyst-contg. soln. of a polyesterimide precondensate in at least one cyclic ether having b. pt. >110 degrees C, at standard press., in water opt. contg. flow control agents, protective colloid and/or wetting agents; (2) largely removing the cyclic ether and (3) grinding the polyesterimide precondensate suspension obtd. to particle sixes 5 (0.05-1.5) mu. Pref. used for prepn. of temp-resistant impregnating and luting compsns., laminates and pre-pregs, e.g. for impregnating glass and polyacrylamide webs and for bonding foils, papers and webs. Dispersions having higher concns. are more easily processed than the solns. Risk of fire is obviated.

公开(公告)号：DE2230121A1

公开(公告)日：1974-01-17

申请号：DE2230121

申请日：1972-06-21

Applicant: BASF AG

Inventor： KOVACS JENOE DR

IPC: B29C71/02 ,  B29C71/00 ,  C07C67/00 ,  C07C231/00 ,  C07C231/02 ,  C07C237/40 ,  C07C313/00 ,  C07C315/04 ,  C07C317/40 ,  C08G73/00 ,  C08G73/14 ,  C08J5/24 ,  C09D179/08 ,  C08G20/32

公开(公告)号：DE59006121D1

公开(公告)日：1994-07-21

申请号：DE59006121

申请日：1990-08-14

Applicant: BASF AG

Inventor： OHLINGER MANFRED DR ,  KOVACS JENOE DR

IPC: C09D5/23 ,  C09D7/12 ,  G11B5/706

Abstract: The invention relates to magnetic recording media comprising a nonmagnetic substrate and a magnetisable layer arranged thereon, essentially consisting of a magnetic material from the group comprising the cobalt-modified iron oxides and the hexagonal ferrites and inorganic supporting substances finely distributed in organic binders, the inorganic supporting substance used being ferromagnetic chromium dioxide.