MANUFACTURE OF WATERRSOLUBLE DYE GRAIN

Japanese Patent JPS5670056

A

A process for producing agglomerates of water-soluble dyes by adding a granulating auxiliary to at least one water-soluble dye, which is in pulverulent form, and converting the mixture, while it is being subjected to a tumbling and/or mixing action, by particle enlargement into a granular form, in which process there is used as a granulating auxiliary: (a) at least one compound of the formula I A-(CH2CH2O)n-H (I) in which A is the group R-O- or R is an aliphatic or alicyclic hydrocarbon radical containing 8 to 22 carbon atoms, R' is an aliphatic hydrocarbon radical containing 8 to 22 carbon atoms, and n is 10 to 200, or (b) a mixture of a compound of the formula II (II) in which m is 50 to 500, and x is 3 to 5, with a compound of the formula III R1-NH-CO-NH-R1 (III) in which each R1 independently of the other is hydrogen or methyl, or (c) a mixture of a compound of the formula I with at least one compound of the formula II or III, and the granulating auxiliary or auxiliary mixture is heated to above its softening point or softening range, the granulating auxiliary or auxiliary mixture having a softening point or softening range of between 30 DEG and 150 DEG C., and being used in amounts of 5 to 50 percent by weight, relative to the dye.

BEATO BURUTSUTERU
HAISUIERUKU SHIYUNAIDA
AREN MIRIYUU
MIHAERU ROSHIYU

JP13682180A

June 11, 1981

October 02, 1980

Click for automatic bibliography generation  

CIBA GEIGY AG

C09B67/02; C09B67/00; (IPC1-7): C09B67/00

JP38000891A
JPS5114929A	1976-02-05
JPS53132031A	1978-11-17
JPS5392839A	1978-08-15
JPS5392840A	1978-08-15

Previous Patent: ヒストンデアセチラーゼ阻害剤に対する癌の耐性を決定する方法

Next Patent: PREPARATION OF POWDERED RESIN COMPOSITION