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2 063 478

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IPC

(21) (22)

Application

93009894/02, 1993-02-25

(22)

Actual filing date

1993-02-25

(45)

Published

1996-07-10

(72)

Inventor

Manokhina N.G.Volynskaja V.N.Nosar' V.D.Poklonov G.G.Krichevskij E.M.Linchevskij F.V.Miroshnichenko N.I.

(73)

Holder

Moskovskij Trubnyj Zavod

INHIBITOR OF ACID STEEL CORROSION Russian patent published in 1996 - IPC

Abstract RU 2063478 C1

FIELD: metal protection. SUBSTANCE: steel inhibitor has ethoxylated product of alkylphenols, polyalkylenepolyamines and formaldehyde condensation at the following ratio of components, wt.-%: alkylphenols 16-22; polyalkylenepolyamines 12-20; formaldehyde 2-3, and ethylene oxide 55-70. Inhibitor can be used at steel article etching in mineral acid solutions, for metal protection against acid corrosion and air protection against acid vapors. EFFECT: enhanced effectiveness of protection. 4 tbl

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RU 2 063 478 C1

Authors

Manokhina N.G.

Volynskaja V.N.

Nosar' V.D.

Poklonov G.G.

Krichevskij E.M.

Linchevskij F.V.

Miroshnichenko N.I.

Dates

1996-07-10—Published

1993-02-25—Filed