Silanated quinacridone dyes and composite pigments

Details Silanated quinacridone dyes and composite pigments Silanated quinacridone dyes and composite pigments

C - Chemistry, Metallurgy

09

B

6/217, 260/275

C09B 48/00 (2006.01) C09B 67/22 (2006.01) C09B 69/00 (2006.01) C09D 11/02 (2006.01) D06P 1/00 (2006.01)

Patent

CA 1269380

ABSTRACT OF THE DISCLOSURE Silane quinacridone dyes, composite pigments obtainable therefrom by association with an inorganic substrate, and the processes for preparing them. The dyes have the general formula: Image (I) wherein x is an -SO2NHR group, where R is an alkyl group, linear or branched, having from 1 to 6 carbon atoms, a cyclohexyl group, a phenyl group which may be substituted by one or more alkyl or alkoxy groups (C1-C6), a halogen; Y and Z indicate a silane group having the formula: Image wherein R1 is an alkoxy group (C1-C2), R2 is an alkyl group (C1- C4) or a phenyl group; n is 3, 4 or 5; q is 0 or 1; p is 2 or 3 and m is 0, 1, 2 or 3, provided that when q is 1, p is 2 and m is 0, 1 or 2, and when q is 0, p is 3 and m is 0, 1, 2 or 3; W indicates an -SO3H group; a, b and c are 0 or 1, provided that the sum a + b + c is equal to 1. The composite pigments obtained from said dyes are used in paints, air enamels and stove enamels, in the pigmentation of plastics, and in printing inks.

470440

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