Silanic phtalocyaninic dyes and composite pigments

Details Silanic phtalocyaninic dyes and composite pigments Silanic phtalocyaninic dyes and composite pigments

1984-03-16

1986-02-04

Michl, Paul R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C09B 4704

Patent

active

045684936

ABSTRACT:
There are described silanic phtalocyaninic dyes; composite pigments obtainable by grafting said dyes on an inorganic substrate, and, processes for preparing said dyes and said composite pigments.
The dyes are of the following general formula: ##STR1## wherein: Pc is the residue of the phtalocyanine which may be metallized with a metal selected from the group consisting of Co, Ni and Cu; R.sub.1 is selected from the group consisting of H and alkaline metals; R.sub.2 and R.sub.3, equal or different, are selected from the group consisting of H, alkyls having up to 4 carbon atoms, cycloalkyls and aryls; R.sub.4 is selected from the group consisting of an alkyl with from C.sub.1 to C.sub.4 and phenyl; R.sub.5 is an alcoxyl C.sub.1 -C.sub.4 ; n is 3, 4 or 5; q is 0,1; p and m are such integers that when q is 0 p is 3 and m is 0, 1, 2 or 3, and when q is 1, p is 2 and m is 0, 1, 2; a and c are numbers in the range of 1 to 3 and b is a number in the range of 0 to 2, chosen in such a way that the sum a+b+c.ltoreq.4; and wherein each of the four benzenic rings of the phtalocyanine is bound to only one single sulphonic group (--SO.sub.3 R.sub.1) or sulphonamidic group.
The composite pigments obtained from above mentioned dyes find their use in varnishes, air-drying or stoving enamels, in the pigmentation of plastic materials as well as in printing inks.

REFERENCES:
patent: 3963744 (1976-06-01), Smith
patent: 4033980 (1977-07-01), Meininger

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