Aqueous polyurethane composition, heat-resistant coating agent, first laminate, bag, second laminate, method for producing first laminate, and method for producing second laminate

Abstract

The aqueous polyurethane composition contains polyurethane resin and inorganic particles. The polyurethane resin includes a reaction product of a polyisocyanate component including polyisocyanate having a ring structure, and a polyol component including a macropolyol and an active hydrogen group-containing compound containing a hydrophilic group. Relative to the total amount of the polyurethane resin and the inorganic particles, the blending ratio of the polyurethane resin is 5% by mass or more and 95% by mass or less, and the blending ratio of the inorganic particles is 5% by mass or more and 95% by mass or less. The inorganic particles have an average particle size of 5 nm or more and 1000 nm or less.

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