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2 084 460

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C1

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IPC

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Application

95102822/04, 1995-02-27

(22)

Actual filing date

1995-02-27

(45)

Published

1997-07-20

(72)

Inventor

Aksenov V.I.Zolotarev V.L.Arest-Jakubovich A.A.Zolotareva I.V.Sklovskij M.D.

(73)

Holder

Tovarishchestvo S Ogranichennoj Otvetstvennost'Ju Firma

METHOD OF SYNTHESIS OF 1,2-POLYBUTADIENE Russian patent published in 1997 - IPC

Abstract RU 2084460 C1

FIELD: organic chemistry and technology. SUBSTANCE: invention relates to diene polymerization for rubber production. Polymerization of butadiene-1,2 is carried out in medium of hydrocarbon solvent (for example, toluene) in the presence of catalytic system consisting of n-butyllithium, sodium tetrahydrofurfurylate with addition of divinylbenzene that is fed at the process onset to the charge at amount 50-75 wt.-% of its total amount and 25-50 wt. -% at 40-60% monomer conversion. EFFECT: improved method of synthesis, decreased consumption, retained properties of polybutadiene. 1 tbl

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RU 2 084 460 C1

Authors

Aksenov V.I.

Zolotarev V.L.

Arest-Jakubovich A.A.

Zolotareva I.V.

Sklovskij M.D.

Dates

1997-07-20—Published

1995-02-27—Filed

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