Color-developing compositions and recording material containing same

作者: Tadashi Kawakami , Satoshi Kodama , Hiroshi Fujii , Toshio Aihara , Toshiyuki Fukami

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摘要: Provided is a color-developing composition for recording materials having superior heat resistance. The reaction containing mixture of compounds represented by formula (III) obtained reacting dihydroxydiphenylsulfone derivative (I) with dihalide (II) X-Y-X (II), wherein, in where the content compound n=1 said from 5 to 80% mass total solid composition, at least 10% crystalline material.

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