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2 091 397

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Application

95105685/04, 1995-04-12

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Actual filing date

1995-04-12

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Published

1997-09-27

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Inventor

Aksenov V.I.Golovina N.A.Grishchenko A.I.Gol'Berg I.P.Rjakhovskij V.S.Khlustikov V.I.Grunin G.N.Gorjachev Ju.V.Byrikhin V.S.Nesmelov A.I.Murachev V.B.Zolotarev V.L.Sklovskij M.D.Sazykin V.V.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Zavod Sinteticheskogo Kauchuka"

METHOD OF PREPARING POLYISOBUTYLENE Russian patent published in 1997 - IPC

Abstract RU 2091397 C1

FIELD: chemistry of polymers. SUBSTANCE: low molecular weight polyisobutylene is prepared by polymerization of isobutylene in toluene at temperature from minus 10 to 80 C in the presence of catalyst system consisting of titanium tetrachloride and trialkyl aluminium at titanium to aluminium molar ratio of 0.5 to 100, that is 0.05 2 1.0 mole of titanium tetrachloride per 100 kg of monomer. Process is carried out by successively adding isobutylene when the latter has 10-60 wt % content in toluene and titanium tetrachloride, maintaining the mixture for at least two minutes and subsequently adding triisobutyl aluminium. EFFECT: more efficient preparation method. 1 tbl

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RU 2 091 397 C1

Authors

Aksenov V.I.

Golovina N.A.

Grishchenko A.I.

Gol'Berg I.P.

Rjakhovskij V.S.

Khlustikov V.I.

Grunin G.N.

Gorjachev Ju.V.

Byrikhin V.S.

Nesmelov A.I.

Murachev V.B.

Zolotarev V.L.

Sklovskij M.D.

Sazykin V.V.

Dates

1997-09-27—Published

1995-04-12—Filed

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