abstract |
A molar ratio x represented by the formula (1), comprising a polyisocyanate obtained from an aspartate ester compound and one or more diisocyanate monomers selected from the group consisting of aliphatic and / or alicyclic diisocyanates. 0.05 to 0.5, the molar ratio d represented by the formula (4) is 0.02 to 0.5, and the molar ratio e represented by the formula (5) is 0 to 0.05. A polyisocyanate composition comprising: a polyisocyanate composition. Molar ratio x = (B + C + D) / (A + B + C + D) (1) Molar ratio d = D / (A + B + C + D) (4) Molar ratio e = E / A (5) In the above formula, in the polyisocyanate composition, A is the isocyanurate group content, B is the iminooxadiazinedione group content, C is the uretdione group content (mol%), and D is the allophanate group content. (Mol%) and E indicate the content (mol%) of the biuret group. |