Immobilizing optical brighteners with poly (vinyl imidazole)...

Details Immobilizing optical brighteners with poly (vinyl imidazole)... Immobilizing optical brighteners with poly (vinyl imidazole)...

G - Physics

03

C

96/207, 96/37

G03C 8/52 (2006.01) G03C 1/053 (2006.01) G03C 1/815 (2006.01) G03C 1/835 (2006.01)

Patent

CA 1071453

A METHOD OF IMMOBILIZING OPTICAL BRIGHTENERS Abstract of the Disclosure The incorporation of polymers containing at least 80% by weight of substituted or unsubstituted poly(vinyl imidazole) in a photographic element containing fluorescent optical brighteners immobilizes the brighteners. The photo- graphic elements resist loss of brightness due to photographic processing or washing. - 1 -

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