1181766-A is referenced by 2 patents.

1,181,766. Pigment dispersions. CIBA Ltd. 17 Sept., 1968 [20 Sept., 1967], No. 44079/68. Headings B1V and B2E '[Also in Divisions B2, B5, C3, C4 and D1] Organic polymers are coloured by the addition of a dibenzanthrone sulphonamide or an isodibenzanthrone sulphonamide and which may be halogenated, e.g. of the formula: in which one X is carbonyl and the other a direct bond, m' is 1 or 2 and n' and u are each 1-4 their sum being not greater than 4. In the examples the following are coloured, (2) nitrocellulose lacquer, (4) an alkyd-melamine storing lacquer, each is applied to aluminium foil, the latter being stored for one hour at 120 C. A dispersion of a specified pigment with the sodium salt of 1, 1'-dinaphthylmethane-2, 2'-disulphonic acid in water is prepared by grinding in a colloid mill to a particle size below 1Á. (Example 5).; Another pigment is dispersed in water with an ethylene oxide-tert. butyl para-cresol condensate (Example 7).

Title
A process for colouring products of high molecular weight with pigments
Application Number
GB19680044079 19680917
Publication Number
1181766 (A)
Application Date
September 17, 1968
Publication Date
February 18, 1970
Assignee
Ciba
CH
IPC
C09B 03/30
C09B 03/00
C08K 05/00
C09B 03/30
C08K 05/43
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