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2 035 494

(13)

C1

(51)

IPC

(21) (22)

Application

93036967/05, 1993-07-22

(22)

Actual filing date

1993-07-22

(45)

Published

1995-05-20

(72)

Inventor

Katrenko T.I.Trofimova G.L.Shafranskij E.L.Shevelev Ju.V.Shor G.I.Dorfman V.P.Likhterov S.D.Minsker Ja.D.Katkov I.N.Doroshenko A.N.Suzdal'Tsev N.I.Pljasunov A.P.Rjauzova I.O.Ivanova O.V.

(73)

Holder

Novokujbyshevskij Neftepererabatyvajushchij Zavod

ADDITIVE AGENT FOR ENGINE OILS Russian patent published in 1995 - IPC

Abstract RU 2035494 C1

FIELD: engine oils. SUBSTANCE: additive agent for engine oils has, wt. -%: zinc dialkyldithiophosphate 5-10; ash-free nitrogen-containing dispersant 10-20; alkaline calcium alkylsalicylate 20-30; reaction product of medium-alkaline alkaline-earth metal sulfonate and zinc di-(alkylphenyl)-dithiophosphate 15-30; alkylbenzene fraction boiling out at the range 300-600 C 20-50. Condensation product of alkylphenols with mean molecular mass 900-1500, polyethyleneamines with 3-6 amino-groups and formaldehyde or diethylenetriamine alkenylsuccinimide is used as an ash-free nitrogen-containing dispersant in additive agent. EFFECT: enhanced quality of additive agent. 2 cl, 2 tbl

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RU 2 035 494 C1

Authors

Katrenko T.I.

Trofimova G.L.

Shafranskij E.L.

Shevelev Ju.V.

Shor G.I.

Dorfman V.P.

Likhterov S.D.

Minsker Ja.D.

Katkov I.N.

Doroshenko A.N.

Suzdal'Tsev N.I.

Pljasunov A.P.

Rjauzova I.O.

Ivanova O.V.

Dates

1995-05-20—Published

1993-07-22—Filed

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