Heat sensitive dye layers comprising a benzopinacol

Details Heat sensitive dye layers comprising a benzopinacol Heat sensitive dye layers comprising a benzopinacol

1977-05-23

1978-03-28

Kimlin, Edward C.

Gas separation: apparatus

Electric field separation apparatus

Electrode cleaner, apparatus part flusher, discharger, or...

961141, 96 67, 96 53, G03C 102, G03C 524

Patent

active

040812782

ABSTRACT:
A heat bleachable layer comprising a benzopinacol and a reducible dye or dye precursor is useful in an imaging element. The heat bleachable layer can be, for instance, an antihalation layer of a photographic element, such as a photothermographic element.

REFERENCES:
patent: 1517049 (1924-11-01), Christensen
patent: 3734733 (1973-05-01), Poot et al.
patent: 3788849 (1974-01-01), Taguchi et al.
patent: 3801321 (1974-04-01), Evans et al.

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