| abstract |
The present invention provides a polyisocyanate composition obtained by a reaction between a starting polyisocyanate composition comprising a polyisocyanate having an aliphatic diisocyanate unit and a hydrophilic compound, the polyisocyanate composition comprising an isocyanurate group, an uretdione group, an uretonimino group, and an iminooxadiazinedione group, wherein the molar ratio of the uretonimino group to the isocyanurate group is 0.0010 or more and 0.0050 or less, and the molar ratio of the iminooxadiazinedione group to the isocyanurate group is 0.00050 or more and 0.30 or less. |