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2 078 126

(13)

C1

(51)

IPC

(21) (22)

Application

94038747/04, 1994-10-12

(22)

Actual filing date

1994-10-12

(45)

Published

1997-04-27

(72)

Inventor

Kosmodem'Janskij L.V.Pautov P.G.Prokof'Ev Ja.N.

(73)

Holder

Aktsionernoe Obshchestvo Nauchno-Proizvodstvennoe Predprijatie

METHOD FOR PRODUCTION OF STIFFENING ADDITIVE FOR MOTOR OILS Russian patent published in 1997 - IPC

Abstract RU 2078126 C1

FIELD: production of motor oil. SUBSTANCE: proposed additive is prepared by cation polymerization of vinylbutyl ether which is carried out at 20-50 C in the medium of solvent. The process takes place in the presence of aluminium sesquiethyl chloride, its mass ratio to monomer being 0.3-0.5:100. Hydrocarbon of $$$ fraction is used as mentioned above solvent. Said solvent may additionally comprise mineral oil, its mass ratio to hydrocarbon is (5: 95)-(99:1). EFFECT: improved efficiency of the method. 2 cl, 1 tbl

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RU 2 078 126 C1

Authors

Kosmodem'Janskij L.V.

Pautov P.G.

Prokof'Ev Ja.N.

Dates

1997-04-27—Published

1994-10-12—Filed

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