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2 082 720

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Application

95105744/04, 1995-04-17

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Actual filing date

1995-04-17

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Published

1997-06-27

(72)

Inventor

Aksenov V.I.Zolotarev V.L.Sokolova A.D.Gol'Berg I.P.Khlustikov V.I.Arest-Jakubovich A.A.Glukhovskoj V.S.Litvin Ju.A.Kretinina E.S.

(73)

Holder

Tovarishchestvo S Ogranichennoj Otvetstvennost'Ju Firma

PROCESS FOR PREPARING LOW-MOLECULAR WEIGHT POLYBUTADIENE Russian patent published in 1997 - IPC

Abstract RU 2082720 C1

FIELD: synthetic rubber industry. SUBSTANCE: polymer serves as substrate for manufacturing electroinsulating, anticorrosive coatings as plasticizing additive in the manufacture of tyres and industrial rubber products. Process of polymerization of butadiene-3 is carried out at temperature of 20-80 C by successively adding to toluene 10-50 wt % butadiene - 1.3 in amount of 15-60 moles of 2-ethylhexyl magnesium per 1 ton of monomer and sodium and/or hydrofurfurylate potassium at magnesium to sodium and/or potassium molar ratio from 0.25 to 2.0. Invention makes it possible to prepare low molecular weight polybutadiene having high content of vinyl units within wide range of molecular weights at low amounts of catalytic system components without using organolithium compounds. EFFECT: more efficient preparation process. 1 tbl

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RU 2 082 720 C1

Authors

Aksenov V.I.

Zolotarev V.L.

Sokolova A.D.

Gol'Berg I.P.

Khlustikov V.I.

Arest-Jakubovich A.A.

Glukhovskoj V.S.

Litvin Ju.A.

Kretinina E.S.

Dates

1997-06-27—Published

1995-04-17—Filed

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