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2 235 120

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Application

2003127452/04, 2003-09-11

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Start date

2003-09-11

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Actual filing date

2003-09-11

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Published

2004-08-27

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Inventor

Fomin V.N.Suzdal'Tsev N.I.Tipushkov E.V.Tarasov A.V.Katrenko T.I.Shkol'Nikov V.M.Kolesnik I.O.Trofimova G.L.Skol'Ditskij S.V.Milovanova A.I.

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju Zavod Masel I Prisadok"

MOTOR OIL ADDITIVE COMPLEX AND MOTOR OIL Russian patent published in 2004 - IPC

Abstract RU 2235120 C1

FIELD: petroleum processing and petrochemistry.

SUBSTANCE: additive complex contains, wt %: zinc dithiophosphate 15-30, calcium C12-C24-alkylsalicylate 15-40, ash-free nitrogen-containing dispersant 20-35, and reaction product of calcium sulfonate with C12-C24-alkylsalicylic acid - the balance. Complex may further contain up to 1.0% of alkylbenzene fraction with boiling range 300-600оС. Ash-free nitrogen-containing dispersant is, in particular, succinimide additive or high-molecular (MW 1200-5000) Mannich base and zinc dithiophosphate is, more specifically, zinc dialkyl and/or di(alkylaryl) dithiophosphate. Petroleum-based motor oil and/or motor oil having synthetic base contains above-described additive complex in concentrations 4 to 10 wt %. In addition, motor oil may also contain depressant and/or thickening and antifoaming agents.

EFFECT: improved antioxidant properties and increased colloidal stability.

6 cl, 3 tbl

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RU 2 235 120 C1

Authors

Fomin V.N.

Suzdal'Tsev N.I.

Tipushkov E.V.

Tarasov A.V.

Katrenko T.I.

Shkol'Nikov V.M.

Kolesnik I.O.

Trofimova G.L.

Skol'Ditskij S.V.

Milovanova A.I.

Dates

2004-08-27—Published

2003-09-11—Filed

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