THERMORESPONSIVE MICROCAPSULE, AND THERMOSENSITIVE RECORDING MATERIAL AND MULTICOLORED THERMOSENSITIVE RECORDING MATERIAL USING THAT

摘要

PROBLEM TO BE SOLVED: To provide a thermoresponsive microcapsule showing high color developing property and excellent raw preservability which can be suitably used for a thermosensitive recording material and a multicolored thermosensitive recording material and to provide the thermosensitive recording material and the multicolored thermosensitive recording material. ;SOLUTION: This microcapsule includes a diazo compd. or an electron donating dye precursor. The capsule wall of the microcapsule consists of a polymer obtd. by polymn. of a compd. having two active hydrogen atoms in the molecule and having at least one of a polyether chain, a polyester chain and a polysiloxane chain with 500 to 20000 average mol.wt., and an isocyanate compd. including an additon product with polyfunctional isocyanate having two or more isocyanate groups in the molecule.;COPYRIGHT: (C)1999,JPO