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Application

98106683/04, 1998-04-13

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Start date

1998-04-13

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Actual filing date

1998-04-13

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Published

2000-10-20

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Inventor

Kropacheva E.N.Smirnova L.V.Zolotarev V.L.Aksenov V.I.Mustafin Kh.V.Rjazanov Ju.I.Ukhov N.I.Kurochkin L.M.Gil'Mutdinov N.R.Smirnov N.D.Zijatdinov A.Sh.Sakhabutdinov A.G.Borejko N.P.

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Holder

OaoTooOoo

METHOD OF PREPARING GEL-FREE 1,4-CIS-POLYBUTADIENE Russian patent published in 2000 - IPC

Abstract RU 2157818 C2

FIELD: chemical industry. SUBSTANCE: described is method of preparing gel-free 1,4-cis-polybutadiene by polymerization of butadiene-1,3 in aliphatic solvent acted upon by catalyst comprising cobalt compound, alkylaluminium chloride and water. Catalyst is formed in toluene solution containing up to 0.033 % of H2O and 0.3- 0.5% of butadiene-1,3 by addition thereto of toluene solutions of cobalt compound and alkylaluminium chloride at 8-30 C and followed by further reaction at 3.0-25 C and addition of catalyst to monomer solution cooled to - 8-30 C in aliphatic hydrocarbon at water concentration (up to 0.006 wt %) lower than in saturated solution of aliphatic hydrocarbon. EFFECT: method uses diluted, unsaturated solutions of water in hydrocarbon solvents. 1 tbl

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RU 2 157 818 C2

Authors

Kropacheva E.N.

Smirnova L.V.

Zolotarev V.L.

Aksenov V.I.

Mustafin Kh.V.

Rjazanov Ju.I.

Ukhov N.I.

Kurochkin L.M.

Gil'Mutdinov N.R.

Smirnov N.D.

Zijatdinov A.Sh.

Sakhabutdinov A.G.

Borejko N.P.

Dates

2000-10-20—Published

1998-04-13—Filed

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