Liquid curing agent useful for curing polymer resins, preferably curable polymer resins comprising epoxide resins, preferably impregnated fiber materials or impregnated fabrics, comprises cyanamide, urea derivative, and viscosity modifier

摘要

Liquid curing agent comprises (a) cyanamide, (b) at least one urea derivative (I), and (c) at least one viscosity modifier comprising mono-, di-, polyols, ethers, polyethers, polyether polyols ketones, aldehydes, nitriles and/or carboxylic esters. Liquid curing agent for curing polymer resins, preferably curable polymer resins comprising epoxide resins comprises (a) cyanamide, (b) at least one urea derivative of formula (I), and (c) at least one viscosity modifier comprising mono-, di-, polyols, ethers, polyethers, polyether polyols ketones, aldehydes, nitriles and/or carboxylic esters. either R1, R2 : H, 1-15C-alkyl or 3-15C cycloalkyl; or R1R2 : ring of 3-10C alkylene; and R3 : H, 1-15C alkyl, 3-15C cycloalkyl, aryl, arylalkyl, -NHC(O)NOR2 substituted 1-15C alkyl, -NHC(O)NR1R2 substituted 3-15C cycloalkyl, -NHC(O)NR1R2 substituted aryl or -NHC(O)NR1R2 substituted arylalkyl. Independent claims are also included for: (1) an epoxide resin composition comprising at least one curable epoxide resin and at least one liquid curing agent; (2) a polyurethane resin composition comprising at least one curable polyurethane resin and at least one liquid curing agent; and (3) a composite material comprising a support material, preferably a fiber material, at least one curable epoxide resin, curable polyurethane resin and at least one liquid curing agent. [Image].