Patenton — panteon of patents

(19)

SU

(11)

1 767 983

(13)

A1

(51)

IPC

(21) (22)

Application

4843173/04, 1990-05-22

(22)

Actual filing date

1990-05-22

(45)

Published

1995-07-09

(72)

Inventor

Kononenko I.I.Uvarova N.V.Babljuk E.B.D'Jachkovskij D.F.

METHOD OF PREPARING CHLORINE-BROMINE-IODINE-SILVER PHOTOGRAPHIC EMULSION Russian patent published in 1995 - IPC

Abstract SU 1767983 A1

FIELD: production of black and white negative photofilms. SUBSTANCE: method involves additional addition of NaCl to the solution of halogenides before onset of emulsification at the following ratio of components, wt.-% NaCl 0.028-0.197; KBr 3.57 ± 0.01; KJ 0.27 + 0.01, and H2O the rest, and compound H(CF2)oCH2OH at concentration (5-15)·10-3 М/М AgHal. Emulsification is carried out at 70-75 C using silver nitrate solutions of temperature 60-75 C. At the beginning of chemical maturation isobutylbenzenethiosulfoacid sodium salt is added at concentration (3,5-7,2)·10-4 М/М AgHal and after spectral sensibilization compound H(CF2)6COONa is added at concentration (5,15)·10-3 М/М AgHal. Photosensitivity is increased by 1.2-2.3 times. EFFECT: enhanced photosensitivity. 1 tbl

Similar patents SU1767983A1

Title Year Author Number
METHOD OF PREPARING HALOGEN-SILVER PHOTOGRAPHIC EMULSION 1990
  • Kononenko I.I.
  • Uvarova N.V.
  • Babljuk E.B.
  • D'Jachkovskij D.F.
 SU1782130A1
METHOD FOR PREPARING OF BROMINE-IODINE-SILVER PHOTOGRAPHIC EMULSION 1990
  • Kononenko I.I.
  • Uvarova N.V.
  • Klimzo Eh.F.
  • Zainulina A.F.
  • Gorshkova N.A.
  • Kozlov V.L.
  • Loginov V.G.
  • Iskhakov D.M.
 SU1746814A1
METHOD OF PREPARING BROMOIODOSILVER PHOTOGRAPHIC EMULSION 1988
  • Kononenko I.I.
  • Uvarova N.V.
  • D'Jachkovskij D.F.
  • Mukhin D.P.
  • Bureev Ju.A.
  • Kirillov A.D.
  • Nesmachnyj V.I.
  • Krylova Eh.G.
 SU1616368A1
METHOD OF PREPARING BROMINE-IODINE-SILVER PHOTOGRAPHIC EMULSION 1990
  • Vakhtanova L.P.
  • Uvarova N.V.
  • Karpova I.Ju.
  • Livshits Eh.B.
  • Shagalova D.Ja.
  • Moshkina T.M.
  • Nesmachnyj V.I.
  • Krylova Eh.G.
 SU1828707A3
METHOD OF PREPARING SILVER BROMIDE-IODIDE AMMONIA PHOTOGRAPHIC EMULSION 1990
  • Kartasheva O.A.
  • Ivanova I.M.
  • Kopeina A.D.
  • Uvarova N.V.
 SU1839572A1
METHOD OF SPECTRAL SENSIBILIZATION OF BROMOIODOSILVER PHOTOGRAPHIC EMULSION 1987
  • Shpol'Skij M.R.
  • Lifshits Eh.B.
  • Komarova L.Ju.
  • Shagalova D.Ja.
  • Moshkina T.M.
  • Ljubich M.S.
  • Pinkhasova A.Z.
  • Formina L.V.
  • Nesmachnyj V.I.
  • Rybacheva Eh.F.
 SU1540528A1
METHOD OF PREPARING SILVER BROMIDE-IODIDE AMMONIA PHOTOGRAPHIC EMULSION 1989
  • Kartasheva O.A.
  • Ivanova I.M.
  • Eremina O.Ju.
  • Uvarova N.V.
 SU1819000A1
METHOD FOR PRODUCTION OF BROMINE-IODINE-SILVER PHOTOGRAPHIC EMULSION 1989
  • Kostrov V.A.
  • Uvarova N.V.
  • Sashin A.G.
  • Sundukova V.N.
  • Kononenko I.I.
 SU1725659A1
METHOD OF PREPARING BROMINE-IODINE-SILVER PHOTOGRAPHIC EMULSION 1990
  • Mikheeva L.I.
  • Vakar A.G.
  • Shapiro B.I.
  • Abramenko P.I.
  • Pinkin L.D.
  • Podlesnykh V.N.
  • Dikalina M.I.
  • Vorob'Eva L.D.
 SU1774751A1
METHOD OF MANUFACTURING PHOTOGRAPHIC SILVER BROMID-IODIDE EMULSIONS 1990
  • Burenichev A.M.
  • Khruleva L.S.
  • Zalozhenkova E.A.
  • Uvarova N.V.
  • Loginov V.G.
  • Kiselev A.I.
  • Slabkovskaja M.A.
 SU1785594A3

SU 1 767 983 A1

Authors

Kononenko I.I.

Uvarova N.V.

Babljuk E.B.

D'Jachkovskij D.F.

Dates

1995-07-09—Published

1990-05-22—Filed

read Similar patents