Patent ID: 9617369
Date: 2017-04-11
CPC Classifications: C08G,C08L

Claim:
1. A liquid hardener for curing curable polymer resins, comprising: a) cyanamide; b) at least one urea derivative of the formula (I) or formula (II) wherein the following applies to the radicals, in each case simultaneously or independently of one another: R R —NHC(O)NR —NHC(O)NR —NHC(O)NR —NHC(O)NR R —NHC(O)NR —NHC(O)NR —NHC(O)NR c) at least one stabiliser comprising inorganic or organic acids, wherein the hardener is liquid at a temperature of 20° C. at normal pressure and has a viscosity less than 1 Pa s.