公开(公告)号：DE3929052A1

公开(公告)日：1991-03-07

申请号：DE3929052

申请日：1989-09-01

Applicant: BASF AG

Inventor： FOLLMANN HEINRICH ,  HOFFMANN DIETRICH ,  SLIWKA WOLFGANG DR

IPC: C08J3/03 ,  C08G12/32 ,  C08G12/38 ,  C08G12/40 ,  C08G12/42 ,  C08J3/12 ,  C08L61/20 ,  C08L61/28

Abstract: A process for the preparation of spherical, hard, mono- or oligodisperse particles having a diameter of from 0.1 to 100 mu m, by condensation of partially etherified melamine-formaldehyde precondensates which are infinitely soluble in water to give a clear solution, in an aqueous solution of a water-soluble polymer which carries highly acidic groups and has a K value of from 100 to 160, at pH 3 to 6 and at from 20 to 100 DEG C, and condensing the resultant turbid solution until the precondensate has been consumed, giving a dispersion of the particles. The dispersion is neutralised. The particles can be used in the form of the aqueous dispersion or after isolation from the dispersion. … The particles are spherical, hard, non-swellable particles which can be used, for example, as sizes for plastics, polishes, flatting (matting) agents, extruders and/or as pigments. … The process allows the targeted preparation of particles of a prespecified size and particle size distribution.

公开(公告)号：NL149506B

公开(公告)日：1976-05-17

申请号：NL6600517

申请日：1966-01-14

Applicant: BASF AG

Inventor： SLIWKA WOLFGANG DR ,  HEIL EDUARD

IPC: B01J19/00 ,  B01J19/18 ,  C08F2/00 ,  C08F2/04 ,  C08F2/18 ,  C08F2/22

公开(公告)号：AT230792B

公开(公告)日：1963-12-30

申请号：AT461762

申请日：1962-06-07

Applicant: BASF AG

Inventor： REINHARD HANS DR ,  SLIWKA WOLFGANG DR ,  PETRI ROLF

公开(公告)号：DE2300111A1

公开(公告)日：1974-07-11

申请号：DE2300111

申请日：1973-01-03

Applicant: BASF AG

Inventor： HEIL EDUARD DIPL ING ,  KUCHNER KARL DR ,  SLIWKA WOLFGANG DR ,  SMITS HARALD DR

IPC: B01J19/00 ,  C08F10/00 ,  C08F15/00

公开(公告)号：DE2237545A1

公开(公告)日：1974-02-14

申请号：DE2237545

申请日：1972-07-31

Applicant: BASF AG

Inventor： BAUM GUENTER DR ,  LUDSTECK DIETER DR ,  BACHMANN RUDOLF DR ,  SLIWKA WOLFGANG DR

IPC: B01J13/12 ,  B41M5/165 ,  B01J1/24

Abstract: The polymeric material is used with a solvent which is partly compatible and partly incompatible with water so that when it is dispersed with water it develops a capsule wall which can be chemically cross-linked. Microcapsules of size 2-20 mu are formed which can easily be applied to a paper, to give typing copying paper without interleaved carbon sheets, which can be stored for long periods and at high temps. without loss of the encapsulated colourant fluid.

公开(公告)号：DE2213755A1

公开(公告)日：1973-10-04

申请号：DE2213755

申请日：1972-03-22

Applicant: BASF AG

Inventor： SLIWKA WOLFGANG DR ,  GAEFKE WOLF-RUEDIGER DR ,  KORTH TILMANN DR ,  HARTMANN HEINZ

IPC: B41M5/165 ,  C09B67/08 ,  B01J13/02

公开(公告)号：CH406024A

公开(公告)日：1966-01-15

申请号：CH590762

申请日：1962-05-16

Applicant: BASF AG

Inventor： REINHARD HANS DR ,  SLIWKA WOLFGANG DR ,  ROLF PETRI

IPC: C04B24/26 ,  C04B28/02 ,  C08K3/34 ,  C04B15/00 ,  C04B31/30

公开(公告)号：DE3935111A1

公开(公告)日：1991-06-27

申请号：DE3935111

申请日：1989-10-21

Applicant: BASF AG

Inventor： FOLLMANN HEINRICH ,  HOFFMANN DIETRICH ,  SLIWKA WOLFGANG DR

IPC: B41M5/132 ,  B41M5/124 ,  C09D7/12 ,  C09D11/00

公开(公告)号：DE3512565A1

公开(公告)日：1986-10-16

申请号：DE3512565

申请日：1985-04-06

Applicant: BASF AG

Inventor： HOFFMANN DIETRICH ,  SLIWKA WOLFGANG DR

IPC: B41M5/124 ,  B01J13/02 ,  B41M5/12

公开(公告)号：DE3160089D1

公开(公告)日：1983-04-07

申请号：DE3160089

申请日：1981-02-21

Applicant: BASF AG

Inventor： HOFFMANN DIETRICH ,  SLIWKA WOLFGANG DR

IPC: B01J13/02 ,  B41M5/00 ,  B41M5/124 ,  C09D11/00 ,  C09D11/02