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2 086 562

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IPC

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Application

5062825/04, 1992-09-30

(22)

Actual filing date

1992-09-30

(45)

Published

1997-08-10

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Inventor

Konovalenko N.A.Kharitonov A.G.Proskurina N.P.Semenova N.M.Kormer V.A.Vasil'Ev V.A.Kogan L.M.Podol'Nyj Ju.B.Fedorov V.A.Vorozhejkin A.P.Rjazanov Ju.I.Ukhov N.I.Kurochkin L.M.Gil'Mutdinov N.R.Komandirova M.I.Burganov T.G.Baev G.V.Abzalin Z.A.

(73)

Holder

Voronezhskij Filial Vsesojuznogo Nauchno-Issledovatel'Skogo Instituta Sinteticheskogo Kauchuka Im.Akad.S.V.Lebedeva

METHOD FOR PRODUCTION OF (CO)POLYMERS OF ISOPRENE Russian patent published in 1997 - IPC

Abstract RU 2086562 C1

FIELD: production of caoutchoucs. SUBSTANCE: polymerization of isoprene or its copolymerization with styrene is carried out in the presence of lithium alkyl and donor of electrons, molar ratio of said donor of electrons and lithium alkyl being 0.1-0.5. Copolymerization also may be carried out in the presence of lithium alkyl and its mixture with compound which is chosen of ethers, dimethyl ether of diethylene glycol, tetrahydrofuran, sodium tetrahydrofurfurylate, derivatives of oxypropylenenated alcohols, molar ratio of components of mixture and lithium alkyl is (0.1-5.0):(0.1-2):1, respectively. EFFECT: improved efficiency. 2 cl, 3 tbl

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RU 2 086 562 C1

Authors

Konovalenko N.A.

Kharitonov A.G.

Proskurina N.P.

Semenova N.M.

Kormer V.A.

Vasil'Ev V.A.

Kogan L.M.

Podol'Nyj Ju.B.

Fedorov V.A.

Vorozhejkin A.P.

Rjazanov Ju.I.

Ukhov N.I.

Kurochkin L.M.

Gil'Mutdinov N.R.

Komandirova M.I.

Burganov T.G.

Baev G.V.

Abzalin Z.A.

Dates

1997-08-10—Published

1992-09-30—Filed

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