Photographic silver halide elements containing optical brighteni

Details Photographic silver halide elements containing optical brighteni Photographic silver halide elements containing optical brighteni

1974-07-17

1978-08-15

Brammer, Jack P.

Gas separation: apparatus

Electric field separation apparatus

With details of voltage supply means or circuitry

96 84UV, 96115R, 526240, 526259, 526260, 526261, 526270, 526271, 526272, 427158, 526267, G03C 192, G03C 184

Patent

active

041069412

ABSTRACT:
Interpolymers from monomers containing optical brightening moieties and solubilizing groups are useful in optical brightening compositions. Photographic elements containing these optical brightening compositions have excellent light stability.

REFERENCES:
patent: 2875053 (1959-02-01), Minsk
patent: 3453110 (1969-07-01), Delzenne et al.
patent: 3615544 (1971-10-01), Amano et al.

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