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2 260 600

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C1

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Application

2004113058/04, 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

2005-09-20

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Inventor

Gusev A.V.Konovalenko N.A.Poljakov D.K.Razumov V.V.Zolotarev V.L.Konjushenko V.D.Privalov V.A.Rachinskij A.V.Kharitonov A.G.Samotsvetov A.R.Soldatenko A.V.Gudkov V.V.

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Holder

Oao

METHOD FOR PREPARING POLYMERS Russian patent published in 2005 - IPC

Abstract RU 2260600 C1

FIELD: chemistry of polymers, chemical technology.

SUBSTANCE: invention describes a method for preparing polymers. Method involves anionic polymerization reaction of vinylaromatic monomers and coupled dienes or by their copolymerization reaction in medium of hydrocarbon solvent in the presence of lithium-organic initiating agent followed by functioning ends of polymeric chains. Method involves using monofunction amine-containing lithium-organic initiating agent as a lithium-organic initiating agent wherein active lithium is stabilized with vinyl or phenyl radical of the general formula: wherein R1 and R2 are similar or different alkyl or allyl radicals; R3 means vinyl or phenyl radical. The functioning ends of polymeric chains is carried out by treatment of "living" macromolecules with a coupling agent or by the functioning break, and (co)polymerization reaction is carried out in the presence of alkaline metal alkoxides or phenolates. Invention provides preparing polymer showing reduced hysteresis losses and high mechanical strength, and improved ecological indices.

EFFECT: improved preparing method.

2 cl, 5 tbl, 11 ex

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RU 2 260 600 C1

Authors

Gusev A.V.

Konovalenko N.A.

Poljakov D.K.

Razumov V.V.

Zolotarev V.L.

Konjushenko V.D.

Privalov V.A.

Rachinskij A.V.

Kharitonov A.G.

Samotsvetov A.R.

Soldatenko A.V.

Gudkov V.V.

Dates

2005-09-20—Published

2004-04-29—Filed

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