公开(公告)号：DE3738114A1

公开(公告)日：1989-05-18

申请号：DE3738114

申请日：1987-11-10

Applicant: BASF AG

Inventor： OSTERTAG WERNER DR ,  SCHWIDETZKY CHRISTOPH DR ,  MRONGA NORBERT DR

IPC: C01G29/00 ,  C09C1/00

公开(公告)号：DE3719804A1

公开(公告)日：1989-03-16

申请号：DE3719804

申请日：1987-06-13

Applicant: BASF AG

Inventor： OSTERTAG WERNER DR

IPC: A61K8/30 ,  A61K8/19 ,  A61K8/26 ,  A61Q1/02 ,  C08K3/22 ,  C09C1/00 ,  C09C1/22 ,  C09C1/24 ,  C09C1/40 ,  C09D11/02

Abstract: A plateletlike two-phase pigment which has a core with a hematite structure of the composition AlxFe2-xO3 where x is from 0.02 to 0.5, and an outer layer with a spinal structure of the composition AlyFe3-yO4+z where y is from 0.03 to 0.75 and z is from 0 to 0.5, can be prepared by a hydrothermal treatment of plateletlike AlxFe2-xO3 pigments (x from 0.02 to 0.5) in the presence of a reducing agent dissolved in the aqueous phase.

公开(公告)号：DE3523317A1

公开(公告)日：1987-01-02

申请号：DE3523317

申请日：1985-06-29

Applicant: BASF AG

Inventor： OSTERTAG WERNER DR ,  WIENAND HENNING DR ,  BAUER ROLAND

IPC: C01G49/02 ,  C01G49/08 ,  C09C1/24 ,  H01F1/11 ,  G03G9/14

Abstract: Magnetite pigments are prepared from iron(II) salt solutions by a process in which the mean particle size can be brought to a value within the range from 0.06 to 0.5 mu m by means of a residence stage between the precipitation stage and the oxidation stage.

公开(公告)号：DE3269013D1

公开(公告)日：1986-03-20

申请号：DE3269013

申请日：1982-11-11

Applicant: BASF AG

Inventor： MAROSI LASZLO DR ,  STABENOW JOACHIM DR ,  SCHLIMPER HANS-ULRICH DR ,  SCHWARZMANN MATTHIAS DR ,  OSTERTAG WERNER DR

IPC: C07C1/20 ,  C07C4/04 ,  C07C11/02

公开(公告)号：DE19602795A1

公开(公告)日：1997-07-31

申请号：DE19602795

申请日：1996-01-26

Applicant: BASF AG

Inventor： SCHUHMACHER PETER DR ,  FAUST TILLMANN DR ,  SIEMENSMEYER KARL DR ,  OSTERTAG WERNER DR ,  SCHMIDT HANS-WERNER PROF DR ,  GIESA REINER

IPC: B29B9/00 ,  B01J2/00 ,  B01J2/12 ,  B01J2/26 ,  B29B9/10 ,  B29C35/00 ,  C08F2/00 ,  C08F2/44 ,  C09B67/00 ,  C09B67/02 ,  C09B67/42 ,  C09B69/10 ,  C09C3/10 ,  C09D7/12 ,  C09D201/00 ,  C09K19/00 ,  C09K19/38 ,  C09K19/52 ,  C09B67/20 ,  C09D17/00 ,  C09D5/36 ,  C09D5/29

Abstract: A process is disclosed for producing pigment particles and is characterised in that: either a polymerisable mixture containing a dye or interference colouring agent is applied to a surface with recesses in the shape of the desired pigment particles, and is then polymerised, the polymerised pigment particles being afterwards removed from the recesses; or said polymerisable mixture is applied to a smooth surface in the shape of the desired pigment particles, the shape being set in the known way by a printing process, and then polymerised, the polymerised pigment particles being subsequently removed from the surface (not including the production by offset printing of pigment particles of cholesteric-liquid crystalline structure).

公开(公告)号：DE4419089A1

公开(公告)日：1995-12-07

申请号：DE4419089

申请日：1994-06-01

Applicant: BASF AG

Inventor： SCHMID RAIMUND DR ,  MRONGA NORBERT DR ,  KALIBA CLAUS DR ,  OSTERTAG WERNER DR ,  SCHMIDT HELMUT

IPC: B41M3/14 ,  B44F1/12 ,  C09C1/00 ,  C09C1/28 ,  C09D7/12 ,  C09D11/00 ,  D21H21/40 ,  G07D7/00 ,  B41F11/02

Abstract: Interference pigments based on silicate laminae that are coated with titanium dioxide and heated in a reduced atmosphere are used to produce forgery-proof security documents and packaging.

公开(公告)号：DE4415357A1

公开(公告)日：1995-11-09

申请号：DE4415357

申请日：1994-05-02

Applicant: BASF AG

Inventor： SCHMID RAIMUND DR ,  MRONGA NORBERT DR ,  KALIBA CLAUS DR ,  OSTERTAG WERNER DR ,  SCHMIDT HELMUT

IPC: B41M3/14 ,  B44F1/12 ,  C09C1/00 ,  C09D11/00 ,  C09D11/037 ,  C09C3/06 ,  C09D5/36 ,  C09D11/02 ,  C09D17/00 ,  G06K19/14 ,  G07D7/00

公开(公告)号：DE59300363D1

公开(公告)日：1995-08-24

申请号：DE59300363

申请日：1993-03-05

Applicant: BASF AG

Inventor： SCHMIDT HELMUT ,  OSTERTAG WERNER DR ,  MRONGA NORBERT DR ,  SCHMID RAIMUND DR

IPC: C09C1/40 ,  A61K8/11 ,  A61K8/26 ,  A61Q1/02 ,  C04B33/14 ,  C08K3/00 ,  C09C1/00 ,  C09C1/62 ,  C09C1/64 ,  C09D5/36 ,  C09D7/12 ,  C09D11/00 ,  A61K7/00

Abstract: Mixtures suitable as gloss pigments comprising …… a) aluminium particles coated with iron oxide and … b) mica particles coated with iron oxide, which can already be coated in a first layer with colourless, highly refracting metal oxides, … as essential components,… process for the preparation of these mixtures and their use as dry pigments in printing and coating processes, and generally for the colouring of coatings, printing inks, plastics, decorative cosmetic preparations and ceramic products.

公开(公告)号：DE58904766D1

公开(公告)日：1993-07-29

申请号：DE58904766

申请日：1989-04-13

Applicant: BASF AG

Inventor： OSTERTAG WERNER DR ,  MRONGA NORBERT DR

IPC: C09C1/36 ,  A61K8/11 ,  A61Q1/02 ,  C09C1/00 ,  C09C1/62 ,  C09C1/64

公开(公告)号：DE3914850A1

公开(公告)日：1990-11-08

申请号：DE3914850

申请日：1989-05-05

Applicant: BASF AG

Inventor： WOLFF BERNARDO DR ,  MIELKE MANFRED ,  SEYBOLD GUENTHER DR ,  OSTERTAG WERNER DR ,  FRICKE JOCHEN PROF DR ,  CAPS ROLAND DR

IPC: C01B33/155 ,  C01B33/158 ,  C04B14/06 ,  C04B30/00 ,  F16L59/00 ,  F16L59/02 ,  F16L59/08

Abstract: The material is obtainable by a) reacting an aqueous dispersion of waterglass and a pigment with a strong acid and/or waterglass with a pigment-containing strong acid to give a pigment-containing silica hydrogel, the pigment being characterised in that it scatters, absorbs or reflects infrared radiation of wavelength 3 - 10 mu m, b) substantially freeing the pigment-containing silica hydrogel thus obtained from ionic constituents by washing out with water, c) displacing the water present in the hydrogel by means of a low- boiling liquid which is inert to the pigment-containing silica gel, d) heating the liquid-containing silica gel thus obtained with complete covering with the liquid to supercritical conditions and e) subsequently removing the liquid from the solid by flash evaporation at supercritical temperature.