发明名称 |
CATALYTIC SYSTEM FOR PRODUCTION POLYBUTADIENES, METHOD FOR PREPARATION THEREOF, AND A PROCESS OF PRODUCING POLYBUTADIENES USING THE SAME |
摘要 |
FIELD: polymerization catalysts. ^ SUBSTANCE: proposed catalytic system used for production of polybutadienes is based on at least one conjugated diene monomer; organophosphorus acid salt of one or several rare-earth metals, said salt being suspended in at least one inert aliphatic or alicyclic saturated hydrocarbon solvent; alkylation agent selected from trialkylaluminum and dialkylaluminum hydride, wherein molar ratio of alkylation agent to rare-earth metal salt(s) exceeds 5:1; and hydrogen donor selected from alkylaluminum halides excepting alkylaluminum sesquihalides. Catalytic system is characterized by that concentration of rare-earth metal(s) is at least 0.005 mole/L. Polybutadienes obtained according to invention have polydispersity index below 2.1 and Mooney viscosity ML (1+4) at 100°C below 40. ^ EFFECT: improved physicochemical characteristics of polybutadienes. ^ 14 cl, 2 tbl, 7 ex |
申请公布号 |
RU2301811(C2) |
申请公布日期 |
2007.06.27 |
申请号 |
RU20040136857 |
申请日期 |
2003.04.25 |
申请人 |
SOS'ETE DE TEKNOLOZHI MISHLEN;MISHLEN RESHERSH EH TEKNIK S.A. |
发明人 |
LOBRI FILIPP;BARBOTEN FANNI |
分类号 |
C08F4/52;C08F236/04;C08F4/54;C08F4/60;C08F36/04;C08F36/06;C08F136/00 |
主分类号 |
C08F4/52 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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