Timing layer for color transfer film units comprising copolymer

Details Timing layer for color transfer film units comprising copolymer Timing layer for color transfer film units comprising copolymer

1976-04-14

1977-11-01

Klein, David

Gas separation: apparatus

Electric field separation apparatus

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

96 3, 96 73, 96 74, 96 77, 96119R, 428500, 428522, G03C 700, G03C 554, G03C 140, G03C 176

Patent

active

040563944

ABSTRACT:
A temporary barrier between reactants in photographic products and especially for color diffusion transfer film unit comprises a polymeric layer of at least partially coalesced latex, said layer having an activation energy of penetration by an aqueous alkaline solution of greater than 18 kcal/mole.

REFERENCES:
patent: B351673 (1975-01-01), Fleckenstein et al.
patent: 3455686 (1969-07-01), Farney et al.
patent: 3615422 (1971-10-01), Haberlin et al.
patent: 3625685 (1971-12-01), Autges et al.
patent: 3785815 (1974-01-01), Autges et al.
patent: 3847615 (1974-11-01), Yoshida et al.

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