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2 247 757

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IPC

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Application

2003104870/04, 2003-02-19

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Start date

2003-02-19

(22)

Actual filing date

2003-02-19

(45)

Published

2005-03-10

(72)

Inventor

Rozenberg V.R.Murashova O.P.Treger Ju.A.Jas'Kova V.Ja.Safronova L.V.Pichugin A.M.Titova T.V.Grishin B.S.

(73)

Holder

Jas'Kova Vera JakovlevnaPichugin Aleksandr Matveevich

CURING AGENT FOR RUBBER COMPOUNDS BASED ON UNSATURATED RUBBERS AND A METHOD FOR PREPARATION THEREOF Russian patent published in 2005 - IPC

Abstract RU 2247757 C2

FIELD: rubber industry.

SUBSTANCE: curing agent contains, wt %: sulfur 45.0-90.0, 1,4-bis(trichloromethyl)benzene 5.0-40.0, hexamethylenetetramine 1.0-5.0, and wax 2.0-10.0. Agent is prepared by mixing sulfur melt with molten 1,4-bis(trichloromethyl)benzene at 115-120°C followed by adding hexamethylenetetramine and wax, raising temperature to 140-150°C, and stirring resulting melt at this temperature during 30-40 min, whereupon melt is cooled in thin layer to 15-20°C.

EFFECT: improved distribution of curing agent in rubber compound, increased resistance to reversion during prolonged vulcanization of rubber and to thermal-oxidative action.

3 cl, 5 tbl, 7 ex

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RU 2 247 757 C2

Authors

Rozenberg V.R.

Murashova O.P.

Treger Ju.A.

Jas'Kova V.Ja.

Safronova L.V.

Pichugin A.M.

Titova T.V.

Grishin B.S.

Dates

2005-03-10—Published

2003-02-19—Filed