Abstract Dyestuffs of the formulae D-Z - O-OC - X - OyH)n AND D-Z - O-OC - X - OyCOT)n WHEREIN D is the radical of copper phthalocyanine which is attached to Z through a carbon atom of an aromatic ring present in D; Z is a divalent bridging group; n is a positive integer having a value of from 1 to 8 inclusive; X is a divalent saturated or unsaturated aliphatic radical containing at least eight carbon atoms and in which there are at least four carbon atoms between the -CO- and -0- groups; T is a saturated or unsaturated aliphatic radical of from 8-20 carbon atoms and y is a positive number in the range 2-20 inclusive. A process for making the above dyestuffs and their use as dispersing agents in the stabilisation of dispersions of finely divided solids.
A DYESTUFF SELECTED FROM THE CLASSES OF DYESTUFF REPRESENTED BY THE FORMULAE -X-OYH)N AND D - Z - O -OC - X O Y COT)N WHEREIN D IS A A RADICAL OF COPPER PHTHALOCYANINE WHICH IS ATTACHED TO Z THROUGH A CARBON ATOM ON ONE OF THE BENEZENE RINGS PRESENT IN D, N IS A POSITIVE INTEGER FROM ONE TO EIGHT INCLUSIVE Z IS A DIVALENT BRIDGING GROUP FROM THE SERIES CH2- , NHCH2CH2-, -NHCH2CHOHCH2-, -NHCOCH2-, -SO2NHCH2CH2- AND -SO2-NR1-CH2 CHOHCH2 WHERE R1 IS SELECTED FROM THE GROUP H, LOWER ALKYL, PHENYL AND LOWER ALKYL SUBSTITUTED PHENYL, X IS ALKYLENE OR ALKENYLENE CONTAINING AT LEAST EIGHT CARBON ATOMS AND IN WHICH THERE ARE AT LEAST FOUR CARBON ATOMS BETWEEN THE CO- AND -O- GROUPS, T IS ALKYL OR ALKENYL CONTAINING FROM 8-20 CARBON ATOMS AND Y IS A POSITIVE POSITIVE INTEGER IN THE RA NGE 2-20 INCLUSIVE.
Claim 2
Dependent Claim
146 words
A DYESTUFF SELECTED FROM THE CLASSES OF DYESTUFF REPRESENTED BY THE FORMULAE -X-OYH)N AND D - Z - O -OC - X O Y COT)N WHEREIN D IS A A RADICAL OF COPPER PHTHALOCYANINE WHICH IS ATTACHED TO Z THROUGH A CARBON ATOM ON ONE OF THE BENEZENE RINGS PRESENT IN D, N IS A POSITIVE INTEGER FROM ONE TO EIGHT INCLUSIVE Z IS A DIVALENT BRIDGING GROUP FROM THE SERIES CH2- , NHCH2CH2-, -NHCH2CHOHCH2-, -NHCOCH2-, -SO2NHCH2CH2- AND -SO2-NR1-CH2 CHOHCH2 WHERE R1 IS SELECTED FROM THE GROUP H, LOWER ALKYL, PHENYL AND LOWER ALKYL SUBSTITUTED PHENYL, X IS ALKYLENE OR ALKENYLENE CONTAINING AT LEAST EIGHT CARBON ATOMS AND IN WHICH THERE ARE AT LEAST FOUR CARBON ATOMS BETWEEN THE CO- AND -O- GROUPS, T IS ALKYL OR ALKENYL CONTAINING FROM 8-20 CARBON ATOMS AND Y IS A POSITIVE POSITIVE INTEGER IN THE RA NGE 2-20 INCLUSIVE.
Claim 3
Dependent Claim
21 words
The dyestuff of claim 1 wherein said lower alkyl substituted phenyl is selected from the group consisting of tolyl and xylyl.