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2 595 138

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C1

(51)

IPC

C08C19/20(2006-01-01)

C08F136/08(2006-01-01)

C08F36/08(2006-01-01)

(21) (22)

Application

2015106241/04, 2015-02-24

(24)

Start date

2015-02-24

(22)

Actual filing date

2015-02-24

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Published

2016-08-20

(72)

Inventor

Vasilev Valentin AleksandrovichKhvostik Grigorij MaksimovichAndrianova Lyudmila GermanovnaVentseslavskaya Klara KonstantinovnaBubnova Svetlana VasilevnaDrozdov Boris TrofimovichBodrova Vera Sergeevna

(73)

Holder

Federalnoe Gosudarstvennoe Unitarnoe Predpriyatie Lenina I Ordena Trudovogo Krasnogo Znameni Nauchno-Issledovatelskij Institut Sinteticheskogo Kauchuka Imeni Akademika S.V. Lebedeva"

MODIFIED CIS-1,4-POLYISOPRENE PRODUCING METHOD Russian patent published in 2016 - IPC C08C19/20 C08F136/08 C08F36/08 

Abstract RU 2595138 C1

FIELD: chemistry.

SUBSTANCE: invention relates to production of conjugated dienes stereoregular polymers and can be used in the synthetic rubber industry, in tyre and rubber industry. Described is a method of modified CIS-1,4-polyisoprene producing in organic solvent in the presence of complex organometallic catalyst. Method includes stabilization, separating, drying and modification. Modification is carried out at drying stage using monoester of maleic acid mixed with diisopropylxanthogen disulfide. Diisopropylxanthogen disulfide is taken in amount of 5-10 wt% of maleic acid ester weight, and maleic acid monoester is in amount of 0.2-2.0 wt% from polymer weight.

EFFECT: technical result is higher cohesion strength of raw rubber mixtures based on modified polymer and tear resistance of vulcanised rubber.

1 cl, 2 tbl, 5 ex

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RU 2 595 138 C1

Authors

Vasilev Valentin Aleksandrovich

Khvostik Grigorij Maksimovich

Andrianova Lyudmila Germanovna

Ventseslavskaya Klara Konstantinovna

Bubnova Svetlana Vasilevna

Drozdov Boris Trofimovich

Bodrova Vera Sergeevna

Dates

2016-08-20—Published

2015-02-24—Filed

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