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2 151 777

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IPC

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Application

98113375/04, 1998-07-06

(24)

Start date

1998-07-06

(22)

Actual filing date

1998-07-06

(45)

Published

2000-06-27

(72)

Inventor

Zaboristov V.N.Kalistratova V.V.Markov B.A.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Zavod Sinteticheskogo Kauchuka"

METHOD OF PREPARATION CIS-1,4-POLYBUTADIENE Russian patent published in 2000 - IPC

Abstract RU 2151777 C1

FIELD: technology of high-molecular compounds, more particularly methods of preparation of stereoregular polydienes, using Ziegler-Natt catalyst systems, more particularly petrochemical industry. SUBSTANCE: described is method of preparing cis-1,4-polybutadiene by polymerization of butadiene is hedrocarbon solvent using catalyst system based on lantanoids and organoaluminium compounds: catalyst complex is formed and fed continuously to polymerization battery by mixing the components in pipeline. The claimed method makes if possible to prepare high-grade products and to regulate quality of polymer and polymerization process by varying ratios of catalyst components as process proceeds. EFFECT: more efficient preparation method. 7 ex, 1 tbl

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RU 2 151 777 C1

Authors

Zaboristov V.N.

Kalistratova V.V.

Markov B.A.

Dates

2000-06-27—Published

1998-07-06—Filed

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