Patent ID: 7732373
Filing Date: 2010-06-08
Classification: B41M

Abstract:
1. A reversible thermosensitive recording medium comprising: a support, a thermosensitive recording layer formed on the support, and a protective layer formed on the thermosensitive recording layer, wherein the thermosensitive recording layer contains an electron donative coloring compound and an electron acceptive compound, and the color tone reversibly changes depending on the temperature, wherein the protective layer contains a polymer of a composition containing two kinds of acrylate compounds selected from an acrylate compound having a pentaerythritol group and an acrylate compound having a dipentaerythritol group, and wherein, among the two kinds of acrylate compounds, one compound is an acrylate compound (A) in which either a pentaerythritol group or a dipentaerythritol group is directly bonded to a polymerizable group having an ester bond, and the other compound is an acrylate compound (B) having a chain hydrocarbon group which may have a substituent having an ester bond, between either a pentaerythritol group or a dipentaerythritol group and a polymerizable group having an ester bond.