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1 665 582

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A1

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Application

4670719/04, 1989-04-03

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Actual filing date

1989-04-03

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Published

1997-11-10

(72)

Inventor

Sergeev S.A.Vermel' E.E.Nikitin V.E.Bukatov G.D.Zakharov V.A.Balashov V.V.Smirnov A.A.Makhin'Ko A.I.Bikbaev A.N.Akchurin R.I.Gatin R.Sh.Kovalev S.G.Tolstov G.P.Jurtaev O.N.Labzovskij S.Ja.Majer Eh.A.Polle Eh.G.Sukhikh G.L.Denilov R.Kh.Shestak N.P.

METHOD OF PREPARING CATALYST FOR STEREOSPECIFIC POLYMERIZATION OF PROPYLENE Russian patent published in 1997 - IPC

Abstract SU 1665582 A1

FIELD: catalysts for olefin polymerization processes. SUBSTANCE: titanium tetrachloride is reduced by diethylaluminum chloride in presence of diisoamyl (8-75 mol %) and dibutyl ethers, the former being added the first. When employing catalyst, productivity with respect to polypropylene is 185 to 210 g/g catalyst h atm with stereospecifity 97-98% and narrow grain-size distribution (0.3-0.9 mm). EFFECT: increased catalyst activity. 1 tbl

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SU 1 665 582 A1

Authors

Sergeev S.A.

Vermel' E.E.

Nikitin V.E.

Bukatov G.D.

Zakharov V.A.

Balashov V.V.

Smirnov A.A.

Makhin'Ko A.I.

Bikbaev A.N.

Akchurin R.I.

Gatin R.Sh.

Kovalev S.G.

Tolstov G.P.

Jurtaev O.N.

Labzovskij S.Ja.

Majer Eh.A.

Polle Eh.G.

Sukhikh G.L.

Denilov R.Kh.

Shestak N.P.

Dates

1997-11-10—Published

1989-04-03—Filed

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