Dyes for heat sensitive transfer recording

Details Dyes for heat sensitive transfer recording Dyes for heat sensitive transfer recording

1988-07-14

1991-01-08

Shah, Mukund J.

Radiation imagery chemistry: process, composition, or product th

Transfer procedure between image and image layer, image...

Imagewise heating, element or image receiving layers...

544 31, 546 81, 546141, 546143, 546157, 546158, G03C 800, C07D27936, C07D47100, C07D21722

Patent

active

049834932

ABSTRACT:
A dye for heat sensitive transfer recording represented by formula (I): ##STR1## wherein Q.sup.1 represents an atomic group, which includes at least one nitrogen atom, which is required, together with the carbon atoms to which said atomic group is bonded, to form an at least five membered nitrogen containing heterocyclic ring; R.sub.1 represents an acyl group or a sulfonyl group; R.sub.2 represents a hydrogen atom or an aliphatic group which has from 1 to 6 carbon atoms; R.sub.3 represents a hydrogen atom, a halogen atom, an alkoxy group, or an aliphatic group which has from 1 to 6 carbon atoms; R.sub.4 represents a halogen atom, an alkoxy group, or an aliphatic group which has from 1 to 6 carbon atoms; n represents an integer of from 0 to 4; R.sub.3 may be joined to R.sup.1, R.sup.2, or R.sup.4 to form a ring; R.sup.5 and R.sup.6, which may be the same or different, each represents a hydrogen atom, an aliphatic group which has from 1 to 6 carbon atoms, or an aromatic group; R.sup.5 and R.sup.6 may be joined together to form a ring; and at least one of R.sup.5 and R.sup.6 may be joined with R.sup.4 to form a ring.

REFERENCES:
patent: 2754293 (1956-07-01), Brody et al.
patent: 4695287 (1987-09-01), Evans et al.
Cooper, Spectroscopic Techniques for Organic Chemists (New York, J. Wiley & Co. 1980), pp. 240-243.
Shiba et al., "Color Photo Sect Print", Chem. Abs., vol. 110, No. 4, Entry 110:31446u (1989).

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