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2 082 719

(13)

C1

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IPC

(21) (22)

Application

95105680/04, 1995-04-12

(22)

Actual filing date

1995-04-12

(45)

Published

1997-06-27

(72)

Inventor

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

(73)

Holder

Tovarishchestvo S Ogranichennoj Otvetstvennost'JuAktsionernoe Obshchestvo Otkrytogo Tipa Zavod Sinteticheskogo Kauchuka"

CATALYST FOR PREPARING POLYISOBUTYLENE Russian patent published in 1997 - IPC

Abstract RU 2082719 C1

FIELD: synthetic rubber industry and manufacture of additives, lubricants, sealants, glues and other products. SUBSTANCE: catalyst comprises titanium tetrachloride, trisobutyl aluminium and carbon tetrachloride at molar ratios thereof from 1:0.05:0.05 to 1:2:5, respectively, in amount of 0.05-0.5 mole of titanium tetrachloride per 100 kg of isobutylene. Catalyst retains activity at process temperature from - 78 to +50 C in hydrocarbon, e. g. toluene, n - hexane or the like or halohydrocarbon (e.g. methylene chloride) solvents. Invention makes it possible to prepare highly active homogeneous catalyst based on industrial products which provides new technological processes of synthesis of polyisobutylenes of various grades. EFFECT: improved properties. 1 tbl

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RU 2 082 719 C1

Authors

Nesmelov A.I.

Byrikhin V.S.

Murachev V.B.

Shashkina E.F.

Zolotarev V.L.

Sazykin V.V.

Sklovskij M.D.

Golovina N.A.

Grishchenko A.I.

Gol'Berg I.P.

Khlustikov V.I.

Aksenov V.I.

Rjakhovskij V.S.

Grunin G.N.

Dates

1997-06-27—Published

1995-04-12—Filed

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