The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 04, 1986
Filed:
Mar. 16, 1984
Antonio Marraccini, Dormelletto, IT;
Filippo M Carlini, Novara, IT;
Antonio Pasquale, Novara, IT;
Giorgio Maranzana, Novara, IT;
Montedison, S.p.A., Milan, IT;
Abstract
There are described silanic phtalocyaninic dyes; composite pigments obtainable by grafting said dyes on an inorganic substrate, and, processes for preparing said dyes and said composite pigments. The dyes are of the following general formula: ##STR1## wherein: Pc is the residue of the phtalocyanine which may be metallized with a metal selected from the group consisting of Co, Ni and Cu; R.sub.1 is selected from the group consisting of H and alkaline metals; R.sub.2 and R.sub.3, equal or different, are selected from the group consisting of H, alkyls having up to 4 carbon atoms, cycloalkyls and aryls; R.sub.4 is selected from the group consisting of an alkyl with from C.sub.1 to C.sub.4 and phenyl; R.sub.5 is an alcoxyl C.sub.1 -C.sub.4 ; 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.ltoreq.4; and wherein each of the four benzenic rings of the phtalocyanine is bound to only one single sulphonic group (--SO.sub.3 R.sub.1) or sulphonamidic group. The composite pigments obtained from 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.