Patent ID: 6307007
Filing Date: 2001-10-23
Classification: C08G,D06P,D21H

Abstract:
Basic polycondensation products, and their water-soluble salts, obtained by neutralization with inorganic or organic acids usual in dyeing techniques, produced by the steps of:providing an amine (A) of formula (I) ##STR2##in whichA is an alkylene chain which optionally can include a hetero atom, andR.sub.1 -R.sub.4 are independently selected from hydrogen, alkyl optionally substituted by OH, CN or C.sub.1-4 -alkoxy, provided that at least one of R.sub.1 to R.sub.4 is hydrogen;providing a cyanamide, its derivatives or polymers (B) in mol ratio of A:B=2:1 to 1:2,reacting said amine (A) with said cyanamide, its derivatives or polymers (B) in the presence of 0.1 to 0.7 mol sulfamic acid, or its salts, per mole of B, at temperatures of 80 to 180.degree. C.