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2 076 884

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Application

95103550/04, 1995-03-13

(22)

Actual filing date

1995-03-13

(45)

Published

1997-04-10

(72)

Inventor

Shcherban' G.T.Savel'Ev V.S.Kurochkin L.M.Gil'Mutdinov N.R.Gil'Mutdinov G.Z.Borejko Ju.I.Isakov N.D.

(73)

Holder

Shcherban' Georgij Trofimovich

METHOD OF STABILIZING ISOPRENE RUBBER Russian patent published in 1997 - IPC

Abstract RU 2076884 C1

FIELD: synthetic rubber production. SUBSTANCE: in a known method of stabilizing isoprene rubber by introducing into hydrocarbon solution of polyisoprene phenol and/or amine-type antioxidants, for example, 2,6-di-tert-butyl-4- metylphenol, N-phenyl-β-naphtylamine, or N,N'-diphenyl-p- phenylenediamine in hydrocarbon solvent, stearic acid in amount 1.5 to 15.0% based on antioxidant weight is additionally added and stabilization of rubber is carried out at 45-65 C. EFFECT: reduced loss of antioxidants, eliminated clogging of pipelines with sludge, increased accuracy of dosing antioxidants. 1 dwg

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RU 2 076 884 C1

Authors

Shcherban' G.T.

Savel'Ev V.S.

Kurochkin L.M.

Gil'Mutdinov N.R.

Gil'Mutdinov G.Z.

Borejko Ju.I.

Isakov N.D.

Dates

1997-04-10—Published

1995-03-13—Filed

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