C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
6/197, 260/176.1
C09B 29/33 (2006.01) C09B 43/32 (2006.01) C09B 67/22 (2006.01) C09B 69/00 (2006.01) C09C 3/12 (2006.01) D06P 1/04 (2006.01)
Patent
CA 1225988
Abstract There are described silane acetoacetarylide dyes, the composite pigments obtainable therefrom by grafting onto a inorganic substrate and the process for prepar- ing them. The deyes have the general formula: Image (I) wherein R, R1 and R2, like or unlike one another, are a hydrogen atom, an alkyl or an alkoxyl having up to 4 car- bon atoms, a halogen, a nitro group, an acetyl-COCH3 group, a carbamoyl-CONH2 group; n is 3, 4 or 5; q is 0 or 1; p and m are such integers that, when q is O, p is 3 and m is O, 1, 2 or 3, and when q is 1, p is 2 and m is O, 1 or 2; R3 is an alkyl having up to 4 carbon atoms or a phenyl; R4 is an alkoxy having up to 4 carbon atoms. The composite pigments obtained from said dyes are utilized in paints, air and stove enamels, in the pig- mentation of plastics and in the printing inks. * * * * * * * * *
465045
Bornengo Giorgio
Carlini Filippo M.
Maranzana Giorgio
Marraccini Antonio
Pasquale Antonio
Marks & Clerk
Montedison S.p.a.
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