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2 043 996

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IPC

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Application

5061131/05, 1992-06-24

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Actual filing date

1992-06-24

(45)

Published

1995-09-20

(72)

Inventor

Kovshov Ju.S.Moiseev V.V.Zornikov I.P.Zharkikh T.P.

(73)

Holder

Voronezhskij Filial Gosudarstvennogo Predprijatija Nauchno-Issledovatel'Skij Institut Sinteticheskogo Kauchuka Im.Akad.S.V.Lebedeva

METHOD FOR PURIFICATION OF POLYMER AGAINST RESIDUE OF HYDROGENATION CATALYST CONTAINING NICKEL CATALYST Russian patent published in 1995 - IPC

Abstract RU 2043996 C1

FIELD: production of hydrogenated polymers. SUBSTANCE: method is carried out by treatment of polymer solution with complexing agent followed by removal of catalyst residue. Ester of maleic acid having formula HOOCCH=CH-COO/CH/n-/COO-CH=CH-COOH, where n=2,4 is used as said complexing agent, molar ratio of said ester and nickel being (1-10):1. EFFECT: improves efficiency of the method. 2 tbl

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RU 2 043 996 C1

Authors

Kovshov Ju.S.

Moiseev V.V.

Zornikov I.P.

Zharkikh T.P.

Dates

1995-09-20—Published

1992-06-24—Filed

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