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2 127 276

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Application

97104379/04, 1997-03-20

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Actual filing date

1997-03-20

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Published

1999-03-10

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Inventor

Aksenov V.I.Golovina N.A.Grishchenko A.I.Zolotarev V.L.Sazykin V.V.Gol'Berg I.P.Khlustikov V.I.Rjakhovskij V.S.Grunin G.N.Kolokol'Nikov A.S.Byrikhin V.S.Murachev V.B.Nesmelov A.I.

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Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju Sk"Otkrytoe Aktsionernoe Obshchestvo Zavod Sinteticheskogo Kauchuka"

METHOD OF POLYISOBUTYLENE SYNTHESIS Russian patent published in 1999 - IPC

Abstract RU 2127276 C1

FIELD: organic chemistry, polymers, chemical technology. SUBSTANCE: invention relates to a method of isobutylene polymerization. Method involves the use of triisobutylaluminium as a source of trialkylaluminium and process is carried out in toluene, n-hexane, isopentane containing water at the range from 0.0005 to 0.004 wt.-% at (-40 C)-(+40 C). Process involves the successive addition of isobutylene at its concentration in solvent 10-60 wt. -%, titanium tetrachloride as measured 0.05-1.5 mole/100 kg monomer and/or triisobutylaluminium at mole ratio titanium : aluminium = 0.5-10. The end product is used for production of sealing agents and glues, thickening addition agents and for other aims. EFFECT: decreased consumption of catalyst, increased rate of polymerization in an inert solvent. 4 ex

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RU 2 127 276 C1

Authors

Aksenov V.I.

Golovina N.A.

Grishchenko A.I.

Zolotarev V.L.

Sazykin V.V.

Gol'Berg I.P.

Khlustikov V.I.

Rjakhovskij V.S.

Grunin G.N.

Kolokol'Nikov A.S.

Byrikhin V.S.

Murachev V.B.

Nesmelov A.I.

Dates

1999-03-10—Published

1997-03-20—Filed

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