FIELD: chemistry.
SUBSTANCE: invention relates to highly molecular linear polybutadienes with a high content of cis-1,4-units. Claimed is a highly molecular linear neodymium-catalysed polybutadiene with a high part of cis-1,4-units, exceeding 95%, and a small part of 1,2-vinyl units (lower than 1%), as well as a low index of the molar mass distribution, which has the Mooney viscosity (ML1+4 100°C) of 70-90 and the index of the molar mass distribution lower than 10, corresponding to the ratio of Mw(90%) by Mw(10%) division, with the molar mass distribution being characterised by indices Mw(90%)<1000000 g/mol and Mw(10%)>100000 g/mol. A method of obtaining the claimed polybutadienes, rubber mixtures, containing the claimed polybutadienes, and versions of their application are also claimed.
EFFECT: claimed polybutadiene possesses improved exploitation characteristics (gel-formation, elasticity, resilience, etc), making it possible to obtain high-quality tyres and golf balls.
24 cl, 1 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| RUBBER MIXTURE, METHOD FOR OBTAINING THEREOF AND TYRE | 2011 |
|
RU2574448C2 |
| NDBR WITH MOLAR MASS BREAKDOWN | 2014 |
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RU2660853C2 |
| IMPACT-RESISTANT POLYSTYRENE MODIFIED WITH LINEAR AND BRANCHED DIENE RUBBERS | 2005 |
|
RU2291875C1 |
| BIMODAL NEODYMIUM-CATALYSED POLYBUTADIENES | 2011 |
|
RU2570019C9 |
| METHOD OF PROCUCING MODIFIED CIS-1,4(CO) | 2010 |
|
RU2426747C1 |
| BRANCHED POLYDIENES AND RUBBER MIXTURES BASED ON THEM | 2019 |
|
RU2809256C1 |
| MODIFIED POLYDIENES AND METHOD FOR THEIR PRODUCTION | 2019 |
|
RU2803602C1 |
| BUTADIENE RUBBER WITH DRAWFULLY INCREASED VISCOSITY BY MOONEY RECEIVED WITH USE OF INODIMIC CATALYST | 2013 |
|
RU2638960C2 |
| FUNCTIONALIZED POLYMER COMPOSITIONS | 2014 |
|
RU2662541C2 |
| PROCESS FOR OBTAINING OF BRANCHED POLYBUTADIENE WITH HIGH CONTENT OF 1,4-CIS-LINKS | 2013 |
|
RU2618531C2 |
