C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
8/1, 260/196.5
C09B 47/04 (2006.01) C09B 69/00 (2006.01) C09C 1/00 (2006.01) C09C 1/30 (2006.01) C09C 1/36 (2006.01) C09C 1/40 (2006.01) C09C 3/08 (2006.01)
Patent
CA 1221362
ABSTRACT OF THE DISCLOSURE There are described silanic phthalocyaninic dyes; com- posite pigments obtainable by grafting said dyes on an inorganic substrate, and, processes for preparing said dyes and said com- posite pigments. The dyes are of the following general formula: Image (I) wherein: Pc is the residue of the phthalocyanine metallized with a metal selected from the group consisting of Co, Ni and Cu; R1 is selected from the group consisting of H and alkaline metals; R2 and R3, equal or different, are selected from the group con- sisting of H, alkyls having up to 4 carbon atoms, cycloalkyls and aryls; R4 is selected from the group consisting of an alkyl with from C1 to C4 and phenyl, R5 is an alkoxy C1-C4; 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 ,< 4; and wherein each of the four benzenic rings of the phthalocya- nine is bound to only one single sulphonic group (-SO3R1) or sulphonamidic group. The composite pigments obtained from above- 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.
449870
Carlini Filippo M.
Maranzana Giorgio
Marraccini Antonio
Pasquale Antonio
Marks & Clerk
Montedison S.p.a.
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