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2 109 019

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C1

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Application

95114997/04, 1995-08-21

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Actual filing date

1995-08-21

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Published

1998-04-20

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Inventor

Aksenov V.I.Golovina N.A.Grishchenko A.I.Zolotarev V.L.Grunin G.N.Gorjachev Ju.V.Gol'Berg I.P.Khlustikov V.I.Rjakhovskij V.S.Byrikhin V.S.Nesmelov A.I.

(73)

Holder

Tovarishchestvo S Ogranichennoj Otvetstvennost'Ju Firma

METHOD FOR PRODUCING LOW-MOLECULAR ISOBUTYLENE POLYMER Russian patent published in 1998 - IPC

Abstract RU 2109019 C1

FIELD: organic chemistry; polymerization. SUBSTANCE: isobutylene is produced by polymerization carried out in hydrocarbon solvent, such as toluene, xylene or isopentane, at temperature 0-60 C, by successively introducing into solvent isobutylene and conjugated diene, such as butadiene or isoprene. Monomers are taken in amounts 10-60 wt.-%, diene content being 0.5-20 wt. -%. Polymerization is carried out in presence of titanium tetrachloride taken in amount 0.05-1.0 mole per 100 kg of monomers, as well as in presence of triisobutyl aluminium taken in titanium-to-aluminium molar ratio of 100:1 to 1:2. EFFECT: higher polymer quality. 1 tbl

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RU 2 109 019 C1

Authors

Aksenov V.I.

Golovina N.A.

Grishchenko A.I.

Zolotarev V.L.

Grunin G.N.

Gorjachev Ju.V.

Gol'Berg I.P.

Khlustikov V.I.

Rjakhovskij V.S.

Byrikhin V.S.

Nesmelov A.I.

Dates

1998-04-20—Published

1995-08-21—Filed

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