POLYISOCYANATE COMPOSITION AND METHOD FOR PRODUCING SAME, COATING COMPOSITION, WATER-BASED COATING COMPOSITION, AND COATED SUBSTRATE

摘要

The invention provides a polyisocyanate composition containing a modified polyisocyanate obtained by reacting a polyisocyanate and a polyalkylene glycol alkyl ether having a specific structure, wherein, in the polyisocyanate composition, the average number of isocyanate functional groups is 1.8 to 4.0, the moiety derived from the polyalkylene glycol alkyl ether in the modified polyisocyanate is 10 to 18% by mass relative to the total amount of polyisocyanate composition, and the variance ratio of the molecular weight distribution of the moiety derived from the polyalkylene glycol alkyl ether in the modified polyisocyanate is 1.05 to 2.00.