发明名称 |
Prepn. of polymers of vinyl:aromatic cpds. using catalyst system |
摘要 |
Polymers of vinylaromatic cpds. are prepd. at 0-150 deg C, in presence of a catalyst system comprising (A) at least 2 different metallocene complexes and (B) a cpd. forming metallocenium ions. Pref. the aromatic cpds. have formula (I) (where R<1> = H (pref.) or 1-4C alkyl; R<2>-R<6> = H (pref.), 1-12C (1-4C) alkyl (pref.), or halogen (pref. Cl), or 2 adjacent gps. together form a 4-15C (4-12C) cyclic gp., or Ph, biphenyl, naphthalene or anthracene). The components are metallocene complexes formula (II) (where R<7>-R<11> = H, 1-10C alkyl, 5-7C cycloalkyl (opt. carrying 1-6C alkyl gps. as substits.), 6-15C aryl or arylalkyl, or 2 adjacent gps. form together 4-15C cyclic gps., or Si(R<12>)3; R<12> = 1-10C alkyl, 6-15C aryl or 3-10C cycloalkyl; M = metal or 3rd-6th sub-gps. or of the lanthanide series (pref. metal of 4th sub-gp.); Z<1>-Z<5> = H, halogen (Pref.), 1-10C alkyl (pref.), 1-10C alkoxy (pref.), 6-15C aryl or 1-15C aryloxy; z1-z5 = 0-5; z1+z2+z3+z4+z4+z5 = valency of (M - 1)). (B) The components are open-chain or cyclic alumoxan cpds. of formulae (R<13>)(R<13>)Al-(O-Al(R<13>))mR<13> (III) or (IV) (where R<13> = 1-4C alkyl; m = 5-30). The polymers are used to produce mouldings (claimed). Use is esp. in electrical and high temp. resistant applications. A simple process gives syndiotactic polymers with wide distribution of mol.wt. The polymers have mol.wt. 10000-10000000 (50000-1000000) and Mw/Mn of 5-100.
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申请公布号 |
DE19500811(A1) |
申请公布日期 |
1996.07.18 |
申请号 |
DE1995100811 |
申请日期 |
1995.01.13 |
申请人 |
BASF AG, 67063 LUDWIGSHAFEN, DE |
发明人 |
WUENSCH, JOSEF, DR., 67105 SCHIFFERSTADT, DE;FISCHER, DAVID, DR., 67161 GOENNHEIM, DE;LUX, MARTIN, DR., 67125 DANNSTADT-SCHAUERNHEIM, DE;LILGE, DIETER, DR., 67117 LIMBURGERHOF, DE |
分类号 |
C08F4/642;C08F4/68;C08F4/72;C08F12/04;(IPC1-7):C08F12/00;C08L25/00 |
主分类号 |
C08F4/642 |
代理机构 |
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