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2 127 281

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Application

97103597/04, 1997-03-11

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Actual filing date

1997-03-11

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Published

1999-03-10

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Inventor

Zaboristov V.N.Kalistratova V.V.Rjakhovskij V.S.Markov B.A.Tsarina V.S.Gol'Berg I.P.Shelokhneva L.F.Bubnova S.V.Markova V.V.Rakhimov R.Kh.Kutuzov P.I.Bazhenov Ju.P.Nasyrov I.Sh.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Zavod Sinteticheskogo Kauchuka"

PROCESS FOR PREPARING CIS-1,4-POLYBUTADIENE AND CIS-1,4- COPOLYMER AND ISOPRENE Russian patent published in 1999 - IPC

Abstract RU 2127281 C1

FIELD: chemistry of polymers. SUBSTANCE: cis-1,4-polybutadiene and cis-1,4-butadiene- isoprene copolymer using Ziegler-Natt catalyst systems. Catalyst is complex preformed by reacting solvated salts of rare-earth elements (A) with organoaluminium compound (B) in the presence of conjugated diene (C) at A:B:C molar ratios of 1:(5-20):(0.5-50), and molecular weight regulator is dialkyl aluminium hydride. Polymers prepared by the claimed process have reduced plasticity and cold flow. EFFECT: more efficient preparation process. 2 cl, 1 tbl

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RU 2 127 281 C1

Authors

Zaboristov V.N.

Kalistratova V.V.

Rjakhovskij V.S.

Markov B.A.

Tsarina V.S.

Gol'Berg I.P.

Shelokhneva L.F.

Bubnova S.V.

Markova V.V.

Rakhimov R.Kh.

Kutuzov P.I.

Bazhenov Ju.P.

Nasyrov I.Sh.

Dates

1999-03-10—Published

1997-03-11—Filed

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