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2 050 570

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IPC

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Application

93008447/04, 1993-02-12

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Actual filing date

1993-02-12

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Published

1995-12-20

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Inventor

Fedorov A.D.Fomin V.M.Vorob'Ev B.A.Moshkina T.M.Shirjaev V.M.Zverev I.M.Ivanov S.V.Kutyrev G.A.Kumarin E.K.Oranskij Ju.G.Uskov N.I.Kunitsyn V.A.Nikonova L.V.Chudnovskaja M.Ju.Vlasov V.G.Kurashov A.A.Il'In A.V.

(73)

Holder

Fedorov Aleksandr DmitrievichFomin Vladimir MikhajlovichVorob'Ev Boris AndreevichMoshkina Tamara MikhajlovnaShirjaev Valentin MikhajlovichZverev Igor' MikhajlovichIvanov Sergej VladimirovichKutyrev Gennadij AndreevichKumarin Evgenij KonstantinovichOranskij Jurij GermanovichUskov Nikolaj IvanovichKunitsyn Valerij AleksandrovichNikonova Lidija VladimirovnaChudnovskaja Marija Jur'EvnaVlasov Valerij GeorgievichKurashov Aleksandr AleksandrovichIl'In Aleksandr Vasil'EvichKazanskij Nauchno-Issledovatel'Skij Tekhnologicheskij I Proektnyj Institut Khimiko-Fotograficheskoj Promyshlennosti Proizvodstvennogo Ob"EdinenijaPereslavl'-Zalesskij Zavod Fotobumag Aktsionernogo Obshchestva

METHOD FOR PRODUCTION OF DISPERSIONS OF HYDROPHOBIC DYE-FORMING COUPLERS Russian patent published in 1995 - IPC

Abstract RU 2050570 C1

FIELD: chemical and photographic industry. SUBSTANCE: method for production of dispersions of hydrophobic dye-forming couplers provides for dissolving couplers in mixture of solvents such as dibutyl phosphate, dibutyl phthalate, and triphenyl phosphate in mass ratio of (2-9): (6-4):(0.3-2) and copolymer of butyl methacrylate and methacrylic acid in the amount of 0.5-6 mas% of mass of indicated solvents, and dispersion of produced solution in aqueous solution of ionic surfactant. EFFECT: higher efficiency. 4 tbl

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RU 2 050 570 C1

Authors

Fedorov A.D.

Fomin V.M.

Vorob'Ev B.A.

Moshkina T.M.

Shirjaev V.M.

Zverev I.M.

Ivanov S.V.

Kutyrev G.A.

Kumarin E.K.

Oranskij Ju.G.

Uskov N.I.

Kunitsyn V.A.

Nikonova L.V.

Chudnovskaja M.Ju.

Vlasov V.G.

Kurashov A.A.

Il'In A.V.

Dates

1995-12-20—Published

1993-02-12—Filed

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