Patent ID: 7232467
Filing Date: 2007-06-19
Classification: A61K,A61Q,C07C,C09B

Abstract:
1. A method of colouring porous material, which method comprises applying to the material being coloured, in any desired order successively, or simultaneously, a) at least one capped diazonium compound of formula (1) wherein Q is an unsubstituted phenyl; naphthyl; thiophenyl; 1,3-thiazolyl; 1,2-thiazolyl; 1,3-benzothiazolyl; 2,3-benzothiazolyl; imidazolyl; 1,3,4-thiadiazolyl; 1,3,5-thiadiazolyl; 1,3,4-triazolyl; pyrazolyl; benzimidazolyl; benzopyrazolyl; pyridinyl; quinolinyl; pyrimidinyl; isoxazolyl; aminodiphenyl; aminodiphenylether and azobenzenyl or Q is a phenyl, naphthyl, thiophenyl, 1,3-thiazolyl, 1,2-thiazolyl, 1,3-benzothiazolyl, 2,3-benzothiazolyl, imidazolyl, 1,3,4-thiadiazolyl, 1,3,5-thiadiazolyl, 1,3,4-triazolyl, pyrazolyl, benzimidazolyl, benzopyrazolyl, pyridinyl, quinolinyl, pyrimidinyl and isoxazolyl, aminodiphenyl, aminodiphenylether and azobenzenyl which is mono- or poly-substituted by C R is a radical of formula —NR and b) at least one water-soluble coupling component under conditions such that, initially, coupling does not take place, and then causing the capped diazonium compound present on the material to react with the coupling component, with the provisos that (i) if the water-soluble coupling component is then the capped diazonium compounds is not (ii) if the water-soluble coupling component is then the capped diazonium compound is not (iii) if the water-soluble coupling component is then the capped diazonium compound is not (iv) if the water-soluble coupling component is then the capped diazonium compound is not (v) if the water-soluble coupling component is then the capped diazonium compound is not (vi) if the water-soluble coupling component is then the capped diazonium compound is not (vii) if the water-soluble coupling component is then the capped diazonium compound is not (viii) if the water-soluble coupling component is then the capped diazonium compound is not (ix) if the water-soluble coupling component is then the capped diazonium compound is not and (x) if the water-soluble coupling component is then the diazonium capped compound is not