Sulfonylacetate activator-stabilizer precursor

Details Sulfonylacetate activator-stabilizer precursor Sulfonylacetate activator-stabilizer precursor

1976-08-06

1977-11-29

Klein, David

Gas separation: apparatus

Solid sorbent apparatus

With control means responsive to sensed condition

96 48HD, 96109, 96 6GT, G03C 102, G03C 524, G03C 134

Patent

active

040604209

ABSTRACT:
An activator-stabilizer precursor compound having an acid portion which is an alpha-sulfonylacetate is useful in a photographic composition which is responsive to heat for processing. The activator-stabilizer precursors are characterized in that their acid byproducts have reduced toxicity and volatility and are substantially inert in a processed photographic element.

REFERENCES:
patent: 3457078 (1969-07-01), Riester
patent: 3649280 (1972-03-01), King et al.
patent: 3669670 (1972-06-01), Haist et al.
patent: 3955982 (1976-05-01), Van Allan et al.
Research Discl., 12/75 # 14049, Activator-Stabilizers in Heat Dev. Photog., Dickerson et al.

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