Fluoran compounds, process for preparation thereof and recording

Details Fluoran compounds, process for preparation thereof and recording Fluoran compounds, process for preparation thereof and recording

1991-12-19

1993-05-04

Ivy, C. Warren

Record receiver having plural interactive leaves or a colorless

Having a colorless color-former, developer therefor, or...

Identified color-former

549226, B41M 503, B41M 526, C07D31188

Patent

active

052082091

ABSTRACT:
Novel fluoran compounds represented by the formula (I): ##STR1## wherein R.sup.1 is an alkyl group having from 1 to 4 carbon atoms, preparation process of the fluoran compounds, and a heat-sensitive and a pressure-sensitive recording material comprising the fluoran compound, are disclosed.

REFERENCES:
patent: 4910183 (1990-03-01), Dwyer-Hallquist et al.
patent: 4999333 (1991-03-01), Usami et al.

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