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2 241 069

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(51)

IPC

(21) (22)

Application

2003100805/02, 2003-01-09

(24)

Start date

2003-01-09

(22)

Actual filing date

2003-01-09

(45)

Published

2004-11-27

(72)

Inventor

Trusov V.I.Kiselev V.L.

(73)

Holder

Sankt-Peterburgskij Gosudarstvennyj Morskoj Tekhnicheskij UniversitetObshchestvo S Ogranichennoj Otvetstvennost'Ju Nauchno-Proizvodstvennoe Predprijatie

COMPOSITION FOR PHOSPHATATION OF METALLIC SURFACES Russian patent published in 2004 - IPC

Abstract RU 2241069 C2

FIELD: corrosion protection.

SUBSTANCE: anticorrosive "cold" phosphatation composition for preparing metallic surfaces before being coated by lacquer and other coating substances represents connect-rated aqueous solution containing, g/l: prosphoric acid with density 1.7-210-240, zincoxide 45-60, sodium nitrate 8-12, and chromium trioxide 1.2-2.4.

EFFECT: increased protection efficient and reduced under-film corrosion rate due to active inhibitory function.

4 tbl, 4 ex

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RU 2 241 069 C2

Authors

Trusov V.I.

Kiselev V.L.

Dates

2004-11-27—Published

2003-01-09—Filed