FIELD: polymerization catalysts.
SUBSTANCE: invention provides rare-earth element carboxylate composition used as a part of catalytic system for polymerization of conjugated dienes and containing rare-earth element carboxylate and organic solvent, which composition is characterized by additionally containing oxyalkylenated C1-C20-alcohol with molecular mass 90 to 100000 or mixture of such oxyalkylenated alcohols. Described is also preparation of liquid rare-earth element carboxylate composition as well as conjugated diene polymerization process in presence of catalytic system to give polymer with high content of 1,4-cis units.
EFFECT: enabled preparation of stable composition suitable for preparation of stereospecific diene polymerization catalyst.
5 cl, 23 ex
Title | Year | Author | Number |
---|---|---|---|
METHOD FOR PREPARING RARE-EARTH ELEMENT CARBOXYLATES | 2005 |
|
RU2288213C1 |
METHOD OF PRODUCING POLYMERS AND COPOLYMERS OF CONJUGATED DIENES (VERSIONS) | 2009 |
|
RU2422468C1 |
METHOD OF PRODUCING CARBOXYLATES OF RARE-EARTH ELEMENTS | 2008 |
|
RU2382760C2 |
METHOD OF PRODUCING MODIFIED POLYDIENES, MODIFIED POLYDIENES OBTAINED USING SAID METHOD, AND RUBBER MIXTURES BASED ON OBTAINED POLYDIENES | 2016 |
|
RU2727714C1 |
METHOD OF OBTAINING CATALYST OF BUTADIENE POLYMERISATION AND CO-POLYMERISATION OF BUTADIENE WITH ISOPRENE | 2007 |
|
RU2345092C1 |
METHOD FOR PRODUCING NEODYMIUM NEODECANOATE | 2022 |
|
RU2785807C1 |
ISOPRENE RUBBER AND METHOD OF PRODUCING SAID RUBBER | 2008 |
|
RU2374271C1 |
METHOD OF PRODUCING CATALYST FOR (CO) | 2010 |
|
RU2432365C1 |
METHOD OF PRODUCING CIS-1,4-POLYDIENES | 2012 |
|
RU2500689C9 |
METHOD OF PRODUCING POLYDIENES | 2012 |
|
RU2588136C2 |
Authors
Dates
2007-04-20—Published
2006-03-09—Filed