Diffusion control layers for diffusion transfer photographic fil

Details Diffusion control layers for diffusion transfer photographic fil Diffusion control layers for diffusion transfer photographic fil

1981-01-02

1983-07-05

Kittle, John E.

Radiation imagery chemistry: process, composition, or product th

Transfer procedure between image and image layer, image...

Diffusion transfer process, element, or identified image...

430227, 430505, 430536, 430537, G03C 176, G03C 140, G03C 148, G03C 554

Patent

active

043918956

ABSTRACT:
A diffusion control layer for a diffusion transfer photographic film unit comprising a urethane polymer including recurring backbone units capable of undergoing .beta.-elimination degradation in an alkaline environment.

REFERENCES:
patent: 3785815 (1974-01-01), Autges et al.
patent: 3834902 (1974-09-01), Wright
patent: 4201587 (1980-05-01), Bedell et al.
patent: 4288523 (1981-09-01), Taylor

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