High viscosity polyisocyanate composition useful as a surface coating

摘要

A composition (I) comprises (A) at least a substantially allophanate group free polyisocyanatoisocyanurate having an average NCO functionality of more than 3.5 and a viscosity of 4000-50,000 mPas at 20-50 deg C (DIN53019) and (B) at least a compound having an average more than 5 isocyanate reactive groups consisting of urea, urethane, thiourethane or amide forming functional groups. An Independent claim is included for a process for the production of a surface coating agent by mixing (A) and (B).