Radiation imagery chemistry: process – composition – or product th – Nonradiation sensitive image processing compositions or...
Patent
1992-12-18
1994-05-17
Bowers, Jr., Charles L.
Radiation imagery chemistry: process, composition, or product th
Nonradiation sensitive image processing compositions or...
430510, 430517, 430522, 430521, 430520, 430339, 430964, 430353, 430617, 430955, 252583, G03C 538
Patent
active
053127218
ABSTRACT:
The invention involves a bleachable antihalation system, particularly for use in thermally developable photographic recording materials. This antihalation system contains, besides an antihalation dye, a bleaching agent that forms sulfurous acid or sulfurous acid derivatives on treatment with heat or irradiation with actinic radiation.
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Bowers Jr. Charles L.
E. I. Du Pont de Nemours and Company
Neville Thomas R.
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