N-alkoxyethoxyethylphenylenediamine color developing agents

Details N-alkoxyethoxyethylphenylenediamine color developing agents N-alkoxyethoxyethylphenylenediamine color developing agents

1975-03-31

1977-07-12

Wyman, Daniel E.

Gas separation: apparatus

Electric field separation apparatus

Including gas flow distribution means

2602075, 260573, G03C 530, C07C10706, C07C 9314

Patent

active

040351882

ABSTRACT:
Novel compounds represented by the following general formula are useful as color developing agents for color development which react with couplers to form color images: ##STR1## (wherein R.sup.1 and R.sup.2 which may be the same or different represent alkyl groups of 1 to 4 carbon atoms and R.sup.3 represents hydrogen atom or methyl group).

REFERENCES:
patent: 2684893 (1954-07-01), Hughes et al.
patent: 3656950 (1972-03-01), Bent et al.

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