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2 068 430

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C1

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IPC

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Application

5042700/05, 1992-05-19

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Actual filing date

1992-05-19

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Published

1996-10-27

(72)

Inventor

Prudchenko E.P.Khrepinjuk T.E.Dynina I.A.Leznik R.F.Stepanenko V.O.Vorozhtsova N.I.Andrievskij A.M.Zhukova N.A.Germanova I.A.Vasilishin E.V.Korotash M.D.Vugenshmidt V.G.Danilova T.S.

(73)

Holder

Moskovskoe Nauchno-Proizvodstvennoe Ob"Edinenie

PROCESS FOR PREPARING ACTIVE VENYLSULFONIC MONOAZO DYES Russian patent published in 1996 - IPC

Abstract RU 2068430 C1

FIELD: chemical industry. SUBSTANCE: active vinylsulfonic monoazo dye is prepared by diazotization of 4-beta-oxyethylaniline sulfuric ester in combination with Au-acid acetyl followed by oxidative copper plating, cleaning filtration, desalting filtration, hydrolysis, filtration, and drying. Claimed process makes it possible to obtain individual blue dye λ max of 575 nm and yield of 65.5%. EFFECT: enhanced efficiency.

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RU 2 068 430 C1

Authors

Prudchenko E.P.

Khrepinjuk T.E.

Dynina I.A.

Leznik R.F.

Stepanenko V.O.

Vorozhtsova N.I.

Andrievskij A.M.

Zhukova N.A.

Germanova I.A.

Vasilishin E.V.

Korotash M.D.

Vugenshmidt V.G.

Danilova T.S.

Dates

1996-10-27—Published

1992-05-19—Filed

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