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2 352 588

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IPC

C08F136/08(2006-01-01)

C08C19/28(2006-01-01)

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Application

2007122914/04, 2007-06-18

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Start date

2007-06-18

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Actual filing date

2007-06-18

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Published

2009-04-20

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Inventor

Vasil'Ev Valentin AleksandrovichKhvostik Grigorij MaksimovichSmirnov Vladislav PetrovichBazhenov Jurij PetrovichNasyrov Il'Dus ShajkhitdinovichMorozov Jurij Vital'EvichIl'In Vladimir MikhajlovichBurganov Tabriz Gil'MutdinovichMiloslavskij Jurij NikolaevichGil'Manov Khamit KhamisovichGil'Mutdinov Nail' RakhmatullovichSakhabutdinov Anas Aptynurovich

(73)

Holder

Federal'Noe Gosudarstvennoe Unitarnoe Predprijatie Lenina I Ordena Trudovogo Krasnogo Znameni Nauchno-Issledovatel'Skij Institut Sinteticheskogo Kauchuka Imeni Akademika S.V. Lebedeva"

METHOD OF PRODUCING MODIFIED CIS-1,4-POLYISOPRENE Russian patent published in 2009 - IPC C08F136/08 C08C19/28 

Abstract RU 2352588 C2

FIELD: chemistry.

SUBSTANCE: method of producing modified cis-1,4-polyisoprene is ensured by polymerising isoprene in isopentane with Ziegler-Natta catalyst added. Then polymerisation product is added with the stabiliser chosen of the group, including alkylphenylamine, phenylamine, alkylphenol in amount 0.2-0.5 wt % of polymer weight. Polymer is recovered and dried at 220-240°C in drying apparatus wherein modifying additive is introduced "in sity" chosen of the group, including maleic anhydride or maleic acid monoester in amount 0.2-1.0 wt % of polymer weight.

EFFECT: producing modified low gel fraction cis-1,4-polyisoprene, and based raw compound possessing improved cohesive strength.

1 tbl, 8 ex

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RU 2 352 588 C2

Authors

Vasil'Ev Valentin Aleksandrovich

Khvostik Grigorij Maksimovich

Smirnov Vladislav Petrovich

Bazhenov Jurij Petrovich

Nasyrov Il'Dus Shajkhitdinovich

Morozov Jurij Vital'Evich

Il'In Vladimir Mikhajlovich

Burganov Tabriz Gil'Mutdinovich

Miloslavskij Jurij Nikolaevich

Gil'Manov Khamit Khamisovich

Gil'Mutdinov Nail' Rakhmatullovich

Sakhabutdinov Anas Aptynurovich

Dates

2009-04-20—Published

2007-06-18—Filed

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