Temporary barrier layer for photographic element

Details Temporary barrier layer for photographic element Temporary barrier layer for photographic element

1988-07-05

1989-09-12

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

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

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

430454, 430523, 430536, G03C 554, G03C 102

Patent

active

048659460

ABSTRACT:
A polymer composition of the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, G, J, L, x, y, and z are as defined herein is useful as a temporary barrier between reactants in photographic materials. The barrier is particularly useful as a process timing layer in color image transfer film units.

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patent: 4256827 (1981-03-01), Naguchi et al.
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patent: 4426481 (1984-01-01), Sullivan
patent: 4458001 (1984-07-01), Taylor
patent: 4504569 (1985-03-01), Abel et al.

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