Polyethyleneimine-containing azo dyes

Details Polyethyleneimine-containing azo dyes Polyethyleneimine-containing azo dyes

C - Chemistry, Metallurgy

09

B

260/157, 8/19

C09B 69/10 (2006.01) C09D 11/00 (2006.01) C09D 11/02 (2006.01) D06P 1/02 (2006.01)

Patent

CA 1310633

Abstract of the Disclosure: Polyethyleneimine-containig azo dyes of the formula [(D-N=N-K-)yX-]mP . where D is the radical of a diazo component which is derived from an isocyclic aromatic amine or from a heteroaromatic amine and is free of hydroxy- sulfonyl groups, K is the radical of a coupling component of the hydroxynaphthalene, aminopyridine or pyrazolone series which has at most one hydroxysulfonyl group, or is the radical of a coupling component derived from acetoacetic acid, y is 1 or 2, X is a covalent bond or a bridge member if y is 1 or a bridge member if y is 2, and P is the radical of a polyethyleneimine whose degree of polymerization n is from 5 to 25000, and the number m of chromophore radicals is dependent upon the degree of polymerization n and is defined by the ratio m:n = from 1:1 to 1:35, with the proviso that when K is substituted by hydroxysulfonyl the ratio m:n is from 1:2 to 1:35, are useful for dyeing or printing fiber materials and for preparing inks for the ink jet process.

583266

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