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1 825 186

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IPC

(21) (22)

Application

3101937/04, 1984-12-03

(22)

Actual filing date

1984-12-03

(45)

Published

1996-05-20

(72)

Inventor

Lifshits Eh.B.Kirenskaja L.I.Shagalova D.Ja.Jashukova L.N.Ratner I.M.Ushanov G.G.Ponomarenko Z.G.Al'Perovich M.A.

SALTS OF BIS-(3,3′--DI-γ-SULFOPROPYL-9-AMINOTHIACARBOCYANINE BETAINE AND BIS-(N′--METHYLPYRIDINIUM--2′)DITHIALKANES AS SPECTRAL SENSITIZERS FOR BROMINE-IODINE-SILVER PHOTOGRAPHIC EMULSIONS HAVING MAXIMAL SENSITIVITY AT 530 NM FOR COLORED AND BLACK AND WHITE MATERIALS Russian patent published in 1996 - IPC

Abstract SU 1825186 A1

FIELD: development of photographic materials. SUBSTANCE: compounds having formula (I) where n=3-5 are proposed as orthochromatic sensitizers. EFFECT: increases photosensitivity of bromine-iodine-silver emulsions at 550-560 nm. 2 tbl

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SU 1 825 186 A1

Authors

Lifshits Eh.B.

Kirenskaja L.I.

Shagalova D.Ja.

Jashukova L.N.

Ratner I.M.

Ushanov G.G.

Ponomarenko Z.G.

Al'Perovich M.A.

Dates

1996-05-20—Published

1984-12-03—Filed