Hydroxydiphenyl sulfone derivative and heat-sensitive recording

Details Hydroxydiphenyl sulfone derivative and heat-sensitive recording Hydroxydiphenyl sulfone derivative and heat-sensitive recording

1985-11-22

1986-09-16

Hess, Bruce H.

Recorders

Record receiver deforming

346225, 427150, B41M 518

Patent

active

046125574

ABSTRACT:
A hydroxydiphenyl sulfone derivative represented by the formula (I) is a novel compound and a heat-sensitive recording material which comprises at least one of the derivatives as a color acceptor not only has an excellent recording sensitivity, resistances to plasticizer and diazo developer but also suits to high-speed recording, has an excellent storage stability of record images and does not decrease in whiteness of the background, ##STR1## wherein R.sup.1 and R.sup.2 are each hydrogen, halogen, lower alkyl, lower alkoxyl or hydroxyl and n is an integer of 3 or 4.

REFERENCES:
patent: 4453744 (1984-06-01), Wurmli et al.
patent: 4536779 (1985-08-01), Nachbur et al.

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