Carboxylate and heat-sensitive recording material using same

Details Carboxylate and heat-sensitive recording material using same Carboxylate and heat-sensitive recording material using same

1995-04-14

1996-09-24

Haley, Jacqueline

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

544405, C07D20944

Patent

active

055592473

ABSTRACT:
A carboxylate is herein disclosed which is represented by the formula (1) or (2) ##STR1## wherein a ring X is an aromatic residue which may have a substituent; the other substitutents are as defined herein. A heat-sensitive recording material comprising this carboxylate is excellent in the stability of the color image and can provide an optically character-readable sharp color image.

REFERENCES:
Chemical Abstracts, vol. 101, No. 6, Aug. 6, 1984, "Thermographic Copying Paper", p. 509, col. 2, No. 46 337x (JP-A-58008357).
Patent Abstracts of Japan, unexamined application, M Field, vol. 8, No. 263, Dec. 4, 1984, The Patent Office Japanese Government, p. 56 M 342 (JP-A-59135188).
Chemical Abstracts, vol. 107, No. 8, Aug. 24, 1987, S. Hiraishi et al. "Thermal Recording Sheets", p. 615, col. 1, No. 68 254u (JP-A-61205183).
Chemical Abstracts, vol. 101, No. 24, Dec. 10, 1984, "Thermal Recording Material", p. 559, col. 2, No. 219 975j (JP-A-59135188).
Chemical Abstracts, vol. 112, No. 25, Jun. 18, 1990, M. Nomura et al. "Preparation of 3--(4--aminophenyl)--6--amino--isoindolinone Derivatives as Dye Intermediates", p. 611, col. 1, No. 235 176g (JP-A-01283266).
Chemical Abstracts, vol. 100, No. 26, Jun. 25, 1984, M. Danno, "Thermal Recording Medium", p. 101, col. 1, No. 211 864f (JP-A-59024759).

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