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Application

98107713/12, 1998-04-21

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Start date

1998-04-21

(22)

Actual filing date

1998-04-21

(45)

Published

1999-12-10

(72)

Inventor

Bogach E.V.Kuznetsov A.A.Kulikova O.A.Mil'Gotin I.M.Mudryj F.V.Poddubnyj I.S.Grishin B.S.Frolikova V.G.Jalovaja L.I.

(73)

Holder

Volgogradskoe Otkrytoe Aktsionernoe Obshchestvo

METHOD OF PRODUCTION OF POLYMERIC SULFUR Russian patent published in 1999 - IPC

Abstract RU 2142406 C1

FIELD: production of polymeric stabilized sulfur used as nondiscoloring vulcanizing agent in rubber industry. SUBSTANCE: cyclooctasulfur is polymerized thermally in presence of stabilizer, then, sharply cooled (hardened) at time 20 minus 40 C for 4-6 h. Cooling medium is 35-40% aqueous solution of calcium chloride containing 1.0-1.5% of hydrogen peroxide. Cooling medium-sulfur weight ratio is (8-10):1. EFFECT: reduced volume of cooling medium and duration of process, simplified technology. 2 cl, 4 ex

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RU 2 142 406 C1

Authors

Bogach E.V.

Kuznetsov A.A.

Kulikova O.A.

Mil'Gotin I.M.

Mudryj F.V.

Poddubnyj I.S.

Grishin B.S.

Frolikova V.G.

Jalovaja L.I.

Dates

1999-12-10—Published

1998-04-21—Filed