Coating agent and laminate

A laminate comprising:

• a substrate made of paper which may be subjected to an anchor coat or an undercoat treatment, and a polyurethane layer laminated on at least one surface of the substrate, wherein
• the polyurethane layer includes a dried product of a coating agent;
• the coating agent is obtained by water-dispersing a polyurethane resin and a thickener;
• the polyurethane resin is a secondary reaction product of an isocyanate group-terminated prepolymer and a chain extender, the isocyanate group-terminated prepolymer being a primary reaction product of a polyisocyanate component containing a xylylene diisocyanate and/or a hydrogenated xylylene diisocyanate, and an active hydrogen group-containing component containing a short chain diol having 2 to 6 carbon atoms and an active hydrogen compound having a hydrophilic group;
• a content ratio of the thickener is 0.1% by mass or more and 20% by mass or less with respect to the total solid content of the polyurethane resin and the thickener;
• a solid content concentration of the coating agent is 12% by mass or more and 23% by mass or less;
• and
• a viscosity at 25° C. of the coating agent is 50 mPa·s or more.