METHOD OF PRODUCING ETHYLENE-PROPYLENE RUBBER Russian patent published in 2011 - IPC C08F210/18 C08F2/06 C08F2/38 C08F4/12 C08F4/20 

Abstract RU 2434023 C1

FIELD: chemistry.

SUBSTANCE: described is a method of producing ethylene-propylene rubber via copolymerisation of ethylene and propylene in the medium of a hydrocarbon solvent. Copolymerisation takes place in the presence of a cyclic diene comonomer or without, while using a catalyst system based on an organoaluminium compound, vanadium chloride or vanadium oxychloride, a catalyst reactivator and a chain-terminating agent. The method also involves washing, stabilising, degassing and drying the polymer. The copolymerisation reaction is interrupted by adding to the reaction mixture a monoester of a diatomic alcohol in such an amount that, the molar ratio of said monoester to the total amount of metals in the catalyst system is in the range of 0.48-0.8:1.

EFFECT: high degree of extraction of variable-valence metals from the polymer solution and low fraction of uncontrolled branching of the ready cyclic diene.

1 tbl, 15 ex

Similar patents RU2434023C1

Title Year Author Number
METHOD OF PRODUCING ETHYLENE-PROPYLENE RUBBER 2008
  • Busygin Vladimir Mikhajlovich
  • Gil'Manov Khamit Khamisovich
  • Gil'Mutdinov Nail' Rakhmatullovich
  • Sakhabutdinov Anas Gaptynurovich
  • Amirkhanov Akhtjam Talipovich
  • Belanogov Igor' Anatol'Evich
  • Rukhljadev Oleg Vasil'Evich
  • Pogrebtsov Valerij Pavlovich
  • Borejko Natal'Ja Pavlovna
  • Sofronova Ol'Ga Vladimirovna
  • Mikheeva Viktorija Afanas'Evna
  • Tkacheva Elena Nikolaevna
RU2394845C2
SUSPENSION METHOD FOR PRODUCTION OF SYNTHETIC ETHYLENE-PROPYLENE RUBBER 2021
  • Arutyunov Igor Ashotovich
  • Svetikov Dmitrij Viktorovich
  • Masoud Salekh Masoud
  • Khakhin Leonid Alekseevich
  • Potapova Svetlana Nikolaevna
  • Korolev Evgenij Valerevich
RU2785003C1
SUSPENSION METHOD FOR PRODUCING SYNTHETIC ETHYLENE-PROPYLENE RUBBER 2021
  • Arutyunov Igor Ashotovich
  • Khakhin Leonid Alekseevich
  • Svetikov Dmitrij Viktorovich
  • Masoud Salekh Masoud
  • Korolev Evgenij Valerevich
  • Potapova Svetlana Nikolaevna
RU2800118C2
PROCESS FOR PRODUCTION OF ETHYLENE-PROPYLENE RUBBERS 2000
  • Shcherban' G.T.
  • Kurochkin L.M.
  • Pogrebtsov V.P.
  • Burganov T.G.
  • Blinov A.A.
  • Abzalin Z.A.
  • Baev G.V.
  • Akhtam'Janov R.F.
  • Novikov A.A.
RU2198186C2
VANADIUM CATALYST SYSTEM FOR COPOLYMERISATION OF ETHYLENE, PROPYLENE AND DIENE (VERSIONS) AND METHOD OF PRODUCING ETHYLENE, PROPYLENE AND DIENE COPOLYMERS 2009
  • Maksimov Denis Aleksandrovich
  • Kochnev Andrej Ivanovich
  • Galibeev Sergej Sergeevich
  • Tikhomirova Irina Nikolaevna
  • Nagornjak Ajrat Filippovich
  • Rogalev Aleksandr Viktorovich
  • Kazakov Jurij Mikhajlovich
RU2444533C2
VANADIUM CATALYST SYSTEM FOR COPOLYMERISATION OF ETHYLENE WITH ALPHA-OLEFINS (VERSIONS) AND METHOD OF PRODUCING ETHYLENE AND ALPHA-OLEFIN COPOLYMER (VERSIONS) 2010
  • Kochnev Andrej Ivanovich
  • Maksimov Denis Aleksandrovich
  • Ashirov Roman Vital'Evich
  • Smirnova Ol'Ga Valentinovna
RU2505549C2
METHOD OF PRODUCING A {2,4-DI-TERT-BUTYL-6-[(TERT-BUTYLIMINO)METHYL]PHENOLATE} PRE-CATALYST FOR VANADIUM(V) OXODICHLORIDE FOR THE SYNTHESIS OF EPDM/EPM ETHYLENE-PROPYLENE RUBBERS 2020
  • Svetikov Dmitrij Viktorovich
  • Masoud Salekh Masoud
  • Potapova Svetlana Nikolaevna
  • Arutyunov Igor Ashotovich
  • Khakhin Leonid Alekseevich
RU2748114C1
METHOD AND DEVICE FOR CONTINUOUS SOLUTION COPOLYMERIZATION 2000
  • Kurochkin L.M.
  • Busygin V.M.
  • Mustafin Kh.V.
  • Gil'Mutdinov N.R.
  • Burganov T.G.
  • Abzalin Z.A.
  • Blinov A.A.
  • Rjazanov Ju.I.
  • Borejko N.P.
  • Mikheeva V.A.
  • Minsker K.S.
  • Berlin A.A.
  • D'Jakonov G.S.
  • Takhavutdinov R.G.
  • Deberdeev R.Ja.
RU2169738C1
METHOD OF PREPARING ETHYLENE-PROPYLENE RUBBER 2000
  • Shcherban' G.T.
  • Kurochkin L.M.
  • Mustafin Kh.V.
  • Pogrebtsov V.P.
  • Vorob'Ev A.I.
  • Komandirova M.I.
  • Silant'Ev V.N.
RU2171818C1
METHOD OF CONTINUOUS COPOLYMERIZATION IN SOLUTION AND REACTOR FOR ITS EMBODIMENT 1998
  • Berlin A.A.
  • Minsker K.S.
  • Deberdeev R.Ja.
  • Galiev R.G.
  • Rjazanov Ju.I.
  • Zijatdinov A.Sh.
  • Pogrebtsov V.P.
  • Abzalin Z.A.
  • Burganov T.G.
  • Vorob'Ev A.I.
  • Blinov A.A.
  • Baev G.V.
RU2141872C1

RU 2 434 023 C1

Authors

Busygin Vladimir Mikhajlovich

Gil'Manov Khamit Khamisovich

Pogrebtsov Valerij Pavlovich

Borejko Natal'Ja Pavlovna

Sofronova Ol'Ga Vladimirovna

Mikheeva Viktorija Afanas'Evna

Tkacheva Elena Nikolaevna

Galanin Dmitrij Aleksandrovich

Amirkhanov Akhtjam Talipovich

Agljamov Irek Angamovich

Rukhljadev Oleg Vasil'Evich

Dates

2011-11-20Published

2010-06-03Filed