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2 028 309

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Application

93031389/05, 1993-07-05

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Actual filing date

1993-07-05

(45)

Published

1995-02-09

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Inventor

Aksenov V.I.Golovina N.A.Murachev V.B.Zolotarev V.L.Khlustikov V.I.Gol'Berg I.P.Rjakhovskij V.S.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Zavod Sinteticheskogo Kauchuka"

METHOD OF CIS-POLYBUTADIENE PREPARING Russian patent published in 1995 - IPC

Abstract RU 2028309 C1

FIELD: industry of synthetic rubber. SUBSTANCE: method involves polymerization of butadiene-1,3 in the medium of hydrocarbon solvent in the presence of catalytic system consisting of the complex formed by sequence addition of the following substance to the hydrocarbon solvent: butadiene-1,3, lanthanide compound taken from the group involving neodymium, praseodymium compounds or their mixture, tetravalent titanium halogenide taken from the group involving iodochlorotitanium and a mixture of titanium tetrachloride with iodine at the atomic ratio iodine:chlorine from 0:1 to 3:1, and triisobutylaluminium containing at least 30 mole% diisobutylaluminium hydride. Complex is formed at the atomic ratio lanthanide:butadiene-1,3: titanium: aluminium from 1:6:0.75:15 to 1:60:1.1:30, at triisobutylaluminium addition for 5-30 min and complex exposition for at least 1 h. EFFECT: improved method of cis-polybutadiene preparing. 1 tbl

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RU 2 028 309 C1

Authors

Aksenov V.I.

Golovina N.A.

Murachev V.B.

Zolotarev V.L.

Khlustikov V.I.

Gol'Berg I.P.

Rjakhovskij V.S.

Dates

1995-02-09—Published

1993-07-05—Filed

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