公开(公告)号：DE19856604A1

公开(公告)日：2000-06-15

申请号：DE19856604

申请日：1998-12-08

Applicant: BASF AG

Inventor： STANG MICHAEL ,  WOLF HEIKO ,  POLKE REINHARD ,  SCHUBERT HELMAR

IPC: B01F3/08 ,  B01F5/06

Abstract: Fine emulsions are prepared by forcing the raw emulsion through an orifice (5) under pressure, e.g. between 10 and 1000 bar. The opening (5) has an adjustable dividing element (9), preferably with a conical end. The length (lB) to diameter (dB) ration of the orifice (5) is preferably less than 1. Independent claims are also included for the use of a needle valve as the adjustable orifice and an inlet chamber (1) with a diameter (dE) greater than 10 times the orifice diameter (dB).

公开(公告)号：DE19940314A1

公开(公告)日：2001-03-01

申请号：DE19940314

申请日：1999-08-25

Applicant: BASF AG

Inventor： WAGENBLAST GERHARD ,  REICHELT HELMUT ,  WIDLER GUENTHER ,  WENDLER BIRGIT ,  STANG MICHAEL ,  WOLF HEIKO ,  POLKE REINHARD

IPC: C09B67/46 ,  C09D11/328 ,  C09D11/02 ,  D06P1/00 ,  D06P5/00

Abstract: A colloid disperse dye preparation is prepared by preparation of an emulsion, which contains drops of a dye melt emulsified in a non-solvent, at elevated temperature, subjecting the emulsion to shear forces to reduce the average drop size to below 5 mu m, and cooling the emulsion below the melt temperature of the dye. Preparation of colloid disperse dye preparations comprises: (a) preparation of a crude emulsion, which contains drops of a dye melt emulsified in a non-solvent, at elevated temperature; (b) subjecting the crude emulsion to shear forces, so that the average size of the drops is reduced to below 5 mu m; and (c) cooling the resulting emulsion below the melt temperature of the dye. Independent claims are included for: (A) dye preparation obtainable by the above process; (B) dye preparation comprising dye particles which: (i) have an average particle size below 5 mu m; (ii) are spherical; and (iii) are spherical; and (C) inkjet ink which comprises a dye preparation as described in (A) or (B), optionally in combination with other auxiliaries.

公开(公告)号：DE19954366A1

公开(公告)日：2001-05-17

申请号：DE19954366

申请日：1999-11-11

Applicant: BASF AG

Inventor： POLKE REINHARD ,  SCHAEFER MICHAEL ,  WELZ MARTIN ,  REIMANN MANFRED

IPC: B41M5/26 ,  B41M7/00 ,  B41M1/30

Abstract: A color containing composition is applied to a plastic surface and irradiated with a light source. Independent claims are made for: a) a color producing compound for use in the process; b) use of the claimed color producing compound for printing on plastics.

公开(公告)号：DE10125277A1

公开(公告)日：2002-09-05

申请号：DE10125277

申请日：2001-05-23

Applicant: BASF AG

Inventor： POLKE REINHARD ,  SCHAEFER MICHAEL

IPC: G01N15/00 ,  G01N15/02 ,  G01N21/62

Abstract: In making systems of the finest particles, to determine their size and/or shape, a microscopic method is employed, especially an optical method based on electron- or light microscopy. An Independent claim is included for the corresponding particulate system. Preferred Features: The finest particles are dispersed and diluted. The dispersion is atomized, in such a way that particles are separated onto a substrate for microscopy or electron microscopy. Here they form differentiable units. Atomization is by air-brush. In an additional stage of the process, an additive is introduced.