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2 190 007

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IPC

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Application

2000127209/04, 2000-10-30

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Start date

2000-10-30

(22)

Actual filing date

2000-10-30

(45)

Published

2002-09-27

(72)

Inventor

Kirichenko G.N.Dzhemilev U.M.Ibragimov A.G.Khanov V.Kh.Glazunova V.I.Kirichenko V.Ju.

(73)

Holder

Institut Neftekhimii I Kataliza An Rb I Unts Ran

METHOD OF PREPARING ADDITIVES FOR LUBRICATION OILS OPERATED UNDER HIGH-PRESSURE CONDITIONS Russian patent published in 2002 - IPC

Abstract RU 2190007 C2

FIELD: oil additives. SUBSTANCE: invention, in particular, relates to sulfur- and phosphorus- containing additives possessing elevated antiscoring and antiwear properties as well as high heat and oxidation resistances. Invention provides preparation of dithiophosphate-based lubricant additives for lubrication oils, in particular for reducer oils, consisted in that 8-endooxymethyl-3,4,5-exotrithia-tricyclo[5.2.1.0(2,6)] decan and 2- ethylhexanol or the former compound and isobutyl alcohol are subjected to reaction with phosphorus pentasulfide in mineral oil solution at 80 C followed by treatment of resulting product with zinc oxide at 20 C. EFFECT: provided novel preparation procedure. 1 tbl, 3 ex

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RU 2 190 007 C2

Authors

Kirichenko G.N.

Dzhemilev U.M.

Ibragimov A.G.

Khanov V.Kh.

Glazunova V.I.

Kirichenko V.Ju.

Dates

2002-09-27—Published

2000-10-30—Filed