ADDITION AGENT TO LUBRICATING OILS Russian patent published in 1998 - IPC

Abstract RU 2109763 C1

FIELD: chemical industry. SUBSTANCE: addition agent based on hydrogenated stylene-butadiene block copolymer has unsymmetric B/S-S-B structure of general formula: wherein B/S block= a1+b1+c1, molecular weight 40000-130000; S block=c2=12-37 wt %, molecular weight 8500-55000; B block=a2+c2=1-5 wt %, molecular 1000-8000; c1+c2=50-65 wt %, a1+a2= 30-50 wt % per olefinic moiety. Addition agents of claimed structure have better thermooxidizing stability and high thickening property. EFFECT: improved properties of lubricating oils. 2 tbl

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RU 2 109 763 C1

Authors

Moiseev V.V.

Kovshov Ju.S.

Kovtunenko L.V.

Fil' V.G.

Glukhovskoj V.S.

Kudrjavtsev L.D.

Molodyka A.V.

Privalov V.A.

Prokhorov N.I.

Zornikov I.P.

Poluehktov I.T.

Dates

1998-04-27Published

1995-07-04Filed