Silane diimidic tetracarboxylic perylene dyes and composite pigm

Details Silane diimidic tetracarboxylic perylene dyes and composite pigm Silane diimidic tetracarboxylic perylene dyes and composite pigm

1986-03-12

1987-04-07

Yarbrough, Amelia B.

Compositions: coating or plastic

Materials or ingredients

Miscellaneous

106308Q, C09C 308

Patent

active

046558438

ABSTRACT:
Silane diimidic tetracarboxylic perylene dyes, the composite pigments obtainable therefrom by means of grafting onto an inorganic substrate, and the processes for preparing same.
The dyes have the general formula: ##STR1## in which R is the residue of a silane group of formula: ##STR2## in which n is 3, 4 or 5; q is 0 or 1; p and m are such integers than 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 or 2; R.sub.2 is an alkyl C.sub.1 -C.sub.4 or a phenyl; R.sub.3 is an alkoxyl C.sub.1 -C.sub.2 ; R.sub.1 may be the same as R or represent an alkyl C.sub.1 -C.sub.6, a cycloalkyl, a phenyl optionally substituted by one or more alkyl or alkoxyl groups C.sub.1 -C.sub.6 or a halogen.
The dyes and the composite pigments obtained from said dyes are utilized in paints, air and stove enamels, in the pigmentation of plastic materials, and in printing inks.

REFERENCES:
patent: 4381886 (1983-05-01), Yokokura et al.
Derwent Abstract Accession No. 83-830163/48, Japanese Patent J58181049, Oct. 22, 1983.

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