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2 009 148

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IPC

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Application

4928387/05, 1991-04-16

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Actual filing date

1991-04-16

(45)

Published

1994-03-15

(72)

Inventor

Shkuro V.G.Shkuro A.G.Militsin I.A.Zharikov L.K.Chikurov V.V.Tikhonova G.G.Kapitonov O.B.Sibirtsev B.A.Nenashev A.O.Kavun S.M.Kozlov V.M.

(73)

Holder

Cheboksarskoe Proizvodstvennoe Ob"Edinenie

METHOD OF PRODUCING OLIGOMER 1,2-DIHYDRO-2,2,4 -TRIMETHYLQUINOLINE Russian patent published in 1994 - IPC

Abstract RU 2009148 C1

FIELD: production of antiageing agent. SUBSTANCE: method involves condensation of aniline and acetone. The process takes place in the presence of oxygen catalyst, its quantity being 10-30 % of initial mass of aniline. Above mentioned catalyst is aqueous layer prepared by extracting reaction mixture by inert organic solvent at 40-80 C. Residual portion of aqueous layer is used at polymerization stage. EFFECT: improves efficiency of the method. 2 tbl

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RU 2 009 148 C1

Authors

Shkuro V.G.

Shkuro A.G.

Militsin I.A.

Zharikov L.K.

Chikurov V.V.

Tikhonova G.G.

Kapitonov O.B.

Sibirtsev B.A.

Nenashev A.O.

Kavun S.M.

Kozlov V.M.

Dates

1994-03-15—Published

1991-04-16—Filed