| abstract |
The present invention relates to a method of coloring a porous material comprising contacting the porous material with a) a capped diazonium compound of formula (1) and b) optionally a binding component:n n n (One)n n n In the food,n n n A + is a cationic radical of an organic compound,n n n B is an unsubstituted or substituted radical of an aliphatic or aromatic amine, andn n n An is an anion.n n n The present invention also relates to novel compounds and compositions thereof. |