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2 248 845

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IPC

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Application

2004113059/04, 2004-04-29

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Start date

2004-04-29

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Actual filing date

2004-04-29

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Published

2005-03-27

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Inventor

Gusev A.V.Konovalenko N.A.Konjushenko V.D.Razumov V.V.Zolotarev V.L.Privalov V.A.Poljakov D.K.Rachinskij A.V.Kharitonov A.G.Shevchenko A.E.Tarasov V.P.Gudkov V.V.Deev V.N.Cheremukhina V.I.

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Holder

Oao

METHOD OF PREPARING CATALYTIC COMPONENT, CATALYTIC COMPONENT, METHOD OF PREPARING CATALYTIC COMPLEX, CATALYTIC COMPLEX, METHOD OF PRODUCTION OF BUTADIENE (CO) Russian patent published in 2005 - IPC

Abstract RU 2248845 C1

FIELD: polymer production and polymer production catalysts.

SUBSTANCE: invention relates to synthesis of catalysts for production of cis-polybutadiene and butadiene/isoprene cis-copolymer, which can be employed in synthetic rubber industry. Task of invention resides in providing a novel method for synthesis of high-activity catalytic component, in particular neodymium neodecanoate, by reaction of neodymium oxide with neodecanoic acid in presence of metal chloride catalysts characterized by low acidity enabling conduction of process in stainless steal apparatuses and so making it possible to exactly controlling molar ratio of neodymium neodecanoate to free neodecanoic acid and water. Catalytic complex is formed by mixing neodymium neodecanoate-based catalytic component with butadiene, triisobutylaluninum, and diisobutylaluninum hydride in hydrocarbon solvent. Polymerization of butadiene or copolymerization of butadiene with isoprene is carried out in presence of thus formed catalytic complex in hydrocarbon solvent.

EFFECT: increased percentage of cis-1,4 units in polybutadiene or butadiene/isoprene copolymer and narrowed polymer or copolymer molecular weight distribution.

11 cl, 1 tbl, 45 ex

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RU 2 248 845 C1

Authors

Gusev A.V.

Konovalenko N.A.

Konjushenko V.D.

Razumov V.V.

Zolotarev V.L.

Privalov V.A.

Poljakov D.K.

Rachinskij A.V.

Kharitonov A.G.

Shevchenko A.E.

Tarasov V.P.

Gudkov V.V.

Deev V.N.

Cheremukhina V.I.

Dates

2005-03-27—Published

2004-04-29—Filed