Novel color-producing composition and recording material

Details Novel color-producing composition and recording material Novel color-producing composition and recording material

C - Chemistry, Metallurgy

07

C

C07C 275/40 (2006.01) B41M 5/26 (2006.01) B41M 5/30 (2006.01) B41M 5/333 (2006.01) C07C 311/47 (2006.01) C07C 317/22 (2006.01) C07C 317/42 (2006.01) C07D 229/00 (2006.01) C07D 307/85 (2006.01) C07D 405/04 (2006.01) C07D 493/10 (2006.01) C09K 9/02 (2006.01)

Patent

CA 2399054

A urea-urethane compound represented by the following formula; a process for producing the compound; a color developer comprising the urea-urethane compound; and a color former containing a colorless or light-colored leuco dye. (In the formula, R represents a residue of an aliphatic compound, etc.; and A1 and A2 each represents an optionally substituted residue of an aromatic compound, etc.)

Cette invention concerne un composé à base de polyuréthane représenté par la formule (I) ainsi qu'un procédé de fabrication de ce composé, un révélateur chromatique renfermant ledit composé et une substance chromogène contenant une teinture leuco incolore ou de couleur claire. [Dans la formule (I), R représente un résidu de composé aliphatique, etc; A1 et A2 représentent un résidu éventuellement substitué de composé aromatique, etc.]

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