Title:
Photographic diffusion transfer processes employing image receiving layers containing poly-4-vinylpyridine
United States Patent 3148061

Inventors:
Haas, Howard C.
Publication Date:
09/08/1964
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Assignee:
POLAROID CORP
Primary Class:
Other Classes:
101/464, 430/941, 430/213
International Classes:
G03C8/56; G03C8/00
US Patent References:
2798063Interpolymers of vinylpyridines or vinylquinolines, acrylic esters and acrylonitrile, and hydrosols thereof
2830900Process of washing and protecting photographic silver images, and photographic products thereof
2868077Film stock for dichroic dye images
2983606Processes and products for forming photographic images in color
Foreign References:
CA577021A