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2 050 569

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IPC

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Application

5059692/04, 1992-05-26

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Actual filing date

1992-05-26

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Published

1995-12-20

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Inventor

Fedorov A.D.Fomin V.M.Vorob'Ev B.A.Oranskij Ju.G.Moshkina T.M.Kalajda L.E.Kutyrev G.A.Medvedeva M.D.Vlasov V.G.Zverev I.M.Ajupov R.Sh.Kunitsyn V.A.Kurashov A.A.Karnitskaja R.I.

(73)

Holder

Fedorov Aleksandr DmitrievichFomin Vladimir MikhajlovichVorob'Ev Boris AndreevichOranskij Jurij GermanovichMoshkina Tamara MikhajlovnaKalajda Ljudmila Evgen'EvnaKutyrev Gennadij AndreevichMedvedeva Margarita DmitrievnaVlasov Valerij GeorgievichZverev Igor' MikhajlovichAjupov Renat ShajkhievichKunitsyn Valerij AleksandrovichKurashov Aleksandr AleksandrovichKarnitskaja Rimma Il'InichnaKazanskij Nauchno-Issledovatel'Skij Tekhnologicheskij I Proektnyj Institut Khimiko-Fotograficheskoj Promyshlennosti Proizvodstvennogo Ob"Edinenija

METHOD FOR PRODUCTION OF FINE DISPERSIONS OF HYDROPHOBIC DYE-FORMING COUPLERS AND DEVICE FOR ITS REALIZATION Russian patent published in 1995 - IPC

Abstract RU 2050569 C1

FIELD: chemical and photographic industry. SUBSTANCE: solutions of dye-forming couplers in mixture of high-boiling solvents of tributyl phosphate, dibutyl phthalate and triphenyl phosphate in the presence of copolymer of basic formula given in the invention description are subjected to dispersion in aqueous solution of surfactant in the device for dispersing in the fields with velocity gradient from 2,6 · 105 to 3,4 · 106 mm/s mm. Device for production of fine dispersion of hydrophobic dye-forming couplers has drive, transmission and disperser. Disperser is made in form of disk with blades installed on its end face, coaxial cylinders with flow-through channels and stator installed in device body with the aid of blades. Made on one end face of stator are coaxial cylinders with flow-through channels and concentric recesses are made on stator other end face. EFFECT: higher efficiency. 2 cl, 7 dwg, 2 tbl

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RU 2 050 569 C1

Authors

Fedorov A.D.

Fomin V.M.

Vorob'Ev B.A.

Oranskij Ju.G.

Moshkina T.M.

Kalajda L.E.

Kutyrev G.A.

Medvedeva M.D.

Vlasov V.G.

Zverev I.M.

Ajupov R.Sh.

Kunitsyn V.A.

Kurashov A.A.

Karnitskaja R.I.

Dates

1995-12-20—Published

1992-05-26—Filed

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