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1 745 069

(13)

A1

(51)

IPC

(21) (22)

Application

4858005/04, 1990-05-31

(22)

Actual filing date

1990-05-31

(45)

Published

1995-07-09

(72)

Inventor

Averbukh M.Z.Rybakova S.A.Klimzo Eh.F.Uspenskaja A.Ju.Al'Perovich M.A.Zhurin R.B.Shapiro B.I.Puchkova L.N.

METHOD OF PREPARATION TO POURING OF BROMINE-IODINE-SILVER PHOTOGRAPHIC EMULSION FOR BLUE-SENSITIVE LAYER OF COLOR PHOTOMATERIAL Russian patent published in 1995 - IPC

Abstract SU 1745069 A1

FIELD: chemical and photographic industry. SUBSTANCE: method involves the use of color-forming component for dispersion preparing - 2-chloro -5-[N -(3,5 -dimethoxycarbonylphenyl) aminosulfonyl] anilide of (3,5- dimethoxycarbonylphenoxy) -α-octadecylhydroxybenzoylacetic acid dissolved simultaneously with 2,5-di-tert.-octylhydroquinone at concentration 10-20 mol. of component quantity. Indicated dispersion is added as (8,5-33,0)·10-2 М component/M AgHal to the bromine-iodine-silver emulsion with AgHal microcrystal size 0.3-1.3 mcm, AgJ content is 0.5-5.1 mol. pBr is 2.7-3.1 and pH is 5.75-6.70. Photosensitivity is increased by 1.5 times, contrast coefficient and Dmax by 25-30% EFFECT: enhanced quality of material. 1 tbl

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SU 1 745 069 A1

Authors

Averbukh M.Z.

Rybakova S.A.

Klimzo Eh.F.

Uspenskaja A.Ju.

Al'Perovich M.A.

Zhurin R.B.

Shapiro B.I.

Puchkova L.N.

Dates

1995-07-09—Published

1990-05-31—Filed

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