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(19)

(11)

2 680 810

(13)

(51)

IPC

C08F8/20(2006-01-01)

C08F210/10(2006-01-01)

C08F210/14(2006-01-01)

C08L23/28(2006-01-01)

C08K5/00(2006-01-01)

C08L23/22(2006-01-01)

B60C1/00(2006-01-01)

(21) (22)

Application

2017114392, 2015-09-11

(24)

Start date

2015-09-11

(22)

Actual filing date

2015-09-11

(45)

Published

2019-02-27

(72)

Inventor

Dalp Stiven T.Kelkhtermans Mauritts M.Dzhakob SanniMakdonald Dzhr. Majkl F.Klark Dzhon A.Rouz Torri L.Gu Lemin

(73)

Holder

Exxonmobil Chemical Patents Inc.

METHOD OF OBTAINING BROMINATED ELASTOMER WITH IMPROVED STABILITY OF MOONEY VISCOSITY Russian patent published in 2019 - IPC C08F8/20 C08F210/10 C08F210/14 C08L23/28 C08K5/00 C08L23/22 B60C1/00

Abstract RU 2680810 C2

FIELD: chemistry.

SUBSTANCE: invention relates to a method for producing a brominated elastomer. Method includes the polymerization of isomonoolefins and at least one polymerizable unit selected from the group comprising isoprene and alkylstyrene. To the elastomer formed from C₄-C₇-isomonoolefin the first portion of the Mooney viscosity stabilizer is added. Then, the elastomer is reacted with the brominating agent and the emulsion in the bromination section to obtain an output stream. To the output stream containing brominated elastomer a portion of the Mooney viscosity stabilizer is added. Then the output stream is neutralized and the hydrocarbon solvent is evaporated. Brominated elastomer is recovered from the suspension containing the brominated elastomer. Product made of brominated elastomer is also described.

EFFECT: technical result is to obtain a brominated elastomer with improved Mooney stability over time.

10 cl, 5 dwg, 1 tbl

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RU 2 680 810 C2

Authors

Dalp Stiven T.

Kelkhtermans Mauritts M.

Dzhakob Sanni

Makdonald Dzhr. Majkl F.

Klark Dzhon A.

Rouz Torri L.

Gu Lemin

Dates

2019-02-27—Published

2015-09-11—Filed