Stripping layers in diffusion transfer film

Details Stripping layers in diffusion transfer film Stripping layers in diffusion transfer film

1980-09-18

1982-05-04

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...

430202, 430211, 430227, 430263, 430642, G03C 199, G03C 1112

Patent

active

043283012

ABSTRACT:
A photographic assembly for the photographic diffusion transfer process is provided wherein a stripping layer is used consisting of a graft copolymer of gelatin which has been substantially fully reacted with a dicarboxylic acid anhydride selected from phthalic anhydrides, succinic anhydrides, glutaric anhydrides and a monomer of a vinyl ester, a vinyl ether, an acrylic ester, an acrylic ether, a methacrylic ester or a methacrylic ether or a mixture thereof. These stripping layers exhibit good dry adhesion to the emulsion layer and to the mordant layer and moderate wet adhesion.

REFERENCES:
patent: 2525753 (1950-10-01), Yutzy et al.
patent: 3043695 (1962-07-01), Alles
patent: 3445228 (1969-05-01), Beavers et al.
patent: 3573907 (1971-04-01), Verelst

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