High speed positive-working photothermographic radiographic...

Details High speed positive-working photothermographic radiographic... High speed positive-working photothermographic radiographic...

2007-05-08

2007-05-08

Chea, Thorl (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Luminescent imaging

C430S021000, C430S350000, C430S373000, C430S378000, C430S544000, C430S547000, C430S552000, C430S566000, C430S619000, C430S620000

Reexamination Certificate

active

10834581

ABSTRACT:
The present invention is directed to a method of forming a positive image in a photothermographic assembly comprising a photothermographic material and an intensifying means for converting ionizing radiation, wherein the assembly has been imagewise exposed to ionizing radiation to form a latent image in the photothermographic material. The photothermographic material has at least one imaging layer comprising a potentially negative-working emulsion, wherein thermal development of unexposed silver salts in exposed areas relative to unexposed areas is inhibiting when thermally developing the imagewise exposed assembly, thereby producing a positive image. The present invention is also directed to a photothermographic assembly that can be used in the present process in which a positive image characterized by high speed and discrimination is formed when exposed and thermally heated above 150° C.

REFERENCES:
patent: 4186009 (1980-01-01), Jones
patent: 4480024 (1984-10-01), Lyons et al.
patent: 2002/0015928 (2002-02-01), Irving et al.
patent: 2002/0102502 (2002-08-01), Fukui et al.
patent: 2004/0033447 (2004-02-01), Zou et al.
patent: 1507829 (1978-04-01), None
U.S. Appl. No. 10/460,129, filed Jun. 12, 2003, Roberts et al.

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