| 摘要 |
PROBLEM TO BE SOLVED: To provide a curing agent useful for decreasing a solidification temperature, reducing a curing time and stabilizing a pot life of an epoxy resin that is used for a sealing material or an encapsulating material of an electronic component of a liquid crystal display device or the like.SOLUTION: A mixed crystal of a hydrazide compound is provided, which comprises two or more types of crystalline hydrazide compounds each having at least one hydrazide group in one molecule. A production method of a mixed crystal of a hydrazide compound is provided, which includes melting by heating two or more crystalline hydrazide compounds each having at least one hydrazide group in one molecule at a temperature equal to a melting point or higher, mixing the compounds and cooling. |
