| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyfunctional isocyanate composition capable of realizing a sufficiently high density color development by applying high energy free from color development by applying low energy, and can be inexpensively supplied and to provide micro-capsules using the same and to provide a thermal recording material and a multi-colored thermal recording material using the micro-capsules. SOLUTION: This polyfunctional isocyanate composition includes an adduct comprising a compound expressed by general formula (1) and a compound expressed by general formula (2) and the invention includes the micro-capsules including the polyfunctional isocyanate composition and the thermal recording material. [In the formula (1), X<1> and X<2> are each a bonding means or a divalent group. R is a substituent, n is an integer of 0-10, in the case of n>=2 then R is same or different and optionally form a ring by bonding each other.], [In the formula (2) R<1> is a connecting group having two or more valencies]. |
