| (19) |
 |
|
(11) |
EP 0 681 213 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
27.03.1996 Bulletin 1996/13 |
| (43) |
Date of publication A2: |
|
08.11.1995 Bulletin 1995/45 |
| (22) |
Date of filing: 02.05.1995 |
|
|
| (84) |
Designated Contracting States: |
|
DE FR GB IT |
| (30) |
Priority: |
02.05.1994 US 236477
|
| (71) |
Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY |
|
St. Paul,
Minnesota 55133-3427 (US) |
|
| (72) |
Inventors: |
|
- Philip, James B.,
c/o Minnesota Mining and Manuf.
Saint Paul,
Minnesota 55133-3427 (US)
- Shor, Steven M.,
c/o Minnesota Mining and Manuf.
Saint Paul,
Minnesota 55133-3427 (US)
|
| (74) |
Representative: Warcoin, Jacques et al |
|
Cabinet Régimbeau,
26, avenue Kléber
F-75116 Paris
F-75116 Paris (FR) |
|
| |
|
| (54) |
Process of imaging through an imaged, infrared sensitized, photothermographic article |
(57) A process for exposing, developing and then exposing or viewing through an infrared
sensitized photothermographic silver halide element comprising a support layer having
on at least one surface thereof a photothermographic composition comprising a binder,
a light insensitive silver source, a reducing agent for silver ion and infrared radiation
sensitive preformed silver halide grains having number average particle size of <0.10
micron with at least 80% of all grains with ±0.05 microns of the average, in combination
with an antihalation layer having an absorbance ratio of IR absorbance (before exposure)/visible
absorbance (after processing) >30, and an IR absorbance of at least 0.3 within the
range of 750-1400 and an optical density of less than 0.03 in the visible region.