Title: Thermographic recording process

Abstract: A recording process, wherein an organic reducing compound being present in a supported or self-supporting layer and corresponding to one of the following general formulae (I) and (II): ##EQU1## wherein: R.sub.1 represents hydrogen, an aliphatic group of a cycloaliphatic group, and R.sub.2 represents an aliphatic oxy group, a cycloaliphatic oxy group, an aryloxy group, an amino group of the formula ##EQU2## in which R.sub.3 and R.sub.4 (same or different) represent hydrogen, an aliphatic, a cycloaliphatic or an aromatic group or R.sub.3 and R.sub.4 represent together the necessary atoms to close a heterocyclic nitrogen containing nucleus; ##EQU3## wherein: R.sub.5 represents an aliphatic, cycloaliphatic, aromatic or heterocyclic group, is caused to effect in said layer under the influence of information-wise heating an information-wise reduction of a reducible reaction partner.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Laridon, Urbain Leopold (Wilrijk, BE)
Poot, Albert Lucien (Kontich, BE)
Willems, Jozef Frans (Wilrijk, BE)

Application Number: 457547
Filing Date: 1974-04-03
Publication_date: 1976-12-07
Assignee: AGFA-GEVAERT N.V. (Mortsel, BE)
Primary Class(es): 503/201 427/148, 427/150, 428/457, 503/210
Other Classes:
US Patent Ref:

2129242	Sep, 1938	Sheppard et al.	117/36.
2663657	Dec, 1953	Miller et al.	117/36.
3108896	Oct, 1963	Owen	117/36.
3819382	Jun, 1974	Konig et al.	96/114.
3839041	Oct, 1974	Hiller	96/114.

Other Refs: 1,127,3441,129,151

Apr, 1962	DT.
May, 1962	DT.

Primary Examiner: Herbert, Jr., Thomas J.
Assistant Examiner:
Attorney: Daniel; William J.