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1 037 777

(13)

A1

(51)

IPC

(21) (22)

Application

3283505/04, 1981-02-25

(22)

Actual filing date

1981-02-25

(45)

Published

1997-06-27

(72)

Inventor

Kharitonova A.I.Grashina N.A.Maleev A.M.Cherkasov E.V.Shnajder A.A.

METHOD OF PREPARING SILVER BROMIDE-IODIDE PHOTOGRAPHIC EMULSION Russian patent published in 1997 - IPC

Abstract SU 1037777 A1

FIELD: photographic emulsions. SUBSTANCE: invention consists in preparing silver bromide-iodide photographic emulsion for colored materials by way of successively conducting emulsification, preparing emulsion for chemical ripening, chemical ripening, and introducing yellow coloring component - benzoylacetic acid anilide derivative at gelatin to silver weight ratio 0.4-1.2 and that of yellow coloring component to silver 0.09-0.20. EFFECT: improved procedure.

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SU 1 037 777 A1

Authors

Kharitonova A.I.

Grashina N.A.

Maleev A.M.

Cherkasov E.V.

Shnajder A.A.

Dates

1997-06-27—Published

1981-02-25—Filed

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