| 摘要 |
A modifying agent for a coating composition for producing a protective layer in a thermosensitive recording medium, wherein the modifying agent contains a polyurethane resin (A) having the structure represented by the following general formula (I) and a hydrophilic group, and an aqueous medium. (in the general formula (I), R1 and R2 represent individually an alkyl group, and m and n represent individually an integer of 1 or greater.) |
