| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a thermal discoloring composition controlled to a desired discoloration temperature hysteresis. <P>SOLUTION: The thermal discoloring composition contains an electron-donative coloration organic compound, an electron-accepting compound and a desensitizing agent. The thermal discoloring composition contains a compound represented by general formula (1): H(CH<SB>2</SB>)<SB>m</SB>-COO(CH<SB>2</SB>)<SB>n</SB>H (m represents an integer of 5 or more and n represents an integer of 5 or more) and a carboxylic acid methyl ester having the total carbon number of 5 or more as the desensitizing agent. <P>COPYRIGHT: (C)2008,JPO&INPIT |
