Title:
Photographic elements having antihalation layers composed of vinylpyridine polymers and antihalation materials
United States Patent 2448542
Inventors:
Malcolm, Mcqueen David
Clay, Weaver
Publication Date:
09/07/1948
Export Citation:
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Assignee:
Pont DU.
Primary Class:
430/517
Other Classes:
430/536, 526/265, 526/270
International Classes:
G03C1/835; G03C1/825
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US Patent References:
2182794Photographic elements containing antihalation layers
2000587Photographic film