| 摘要 |
<p>There are described silane diimidic tetracarboxylic perylene dyes, composite pigments obtainable therefrom by grafting onto an inorganic substrate or support, and processes for preparing the same.
<??>The dyes have the general formula:
<CHEM>
in which R is the residue of a silane group of formula:
<CHEM>
wherein n is 3, 4 or 5; q is 0 or 1; p and m are integers such 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 or 2; R2 is an alkyl C1-C4 group or a phenyl group; and R3 is an alkoxyl C1-C2 group; and in which R, may be the same as R or may be an alkyl C1-C6 group, a cycloalkyl group, or a phenyl group optionally substituted by one or more halogens or alkyl or alkoxyl C1-C6 groups.
<??>The dyes and the composite pigments obtained from said dyes are utilized in paints, air and stove enamels, in the pigmentation of plastics materials and in printing links. </p> |
