Patent ID: 6888028
Filing Date: 2005-05-03
Classification: C08G

Abstract:
1. A process for producing an allophanate group-containing polyisocyanate composition from at least one isocyanate compound selected from the group consisting of an aliphatic diisocyanate, an alicyclic diisocyanate and an isocyanate pre-polymer obtained from at least one diisocyanate selected from the group consisting of an aliphatic diisocyanate and an alicyclic diisocyanate, and a hydroxyl group-containing compound through an urethanation reaction and an allophanation reaction, wherein at least one compound selected from the group consisting of a zirconyl carboxylate represented by the following formula (1), wherein R 1 and R 2 are independently of each other an alkyl group, is used as a catalyst for the allophanation reaction.