METHOD OF PREPARING POLYOLEFIN
FIELD: chemistry of polymers. SUBSTANCE: present invention describes method of preparing high molecular weight polyolefin. Highly effective catalyst system comprises cocatalyst, preferably aluminoxane and metellocene of structure formula: $$$ wherein $$$ is Zr or Hf; $$$ and $$$ are alkyl or halogen...
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| creator | ANDREAS VINTER JURGEN RORMANN FRANK KJUBER FOL'KER DOLLE |
| description | FIELD: chemistry of polymers. SUBSTANCE: present invention describes method of preparing high molecular weight polyolefin. Highly effective catalyst system comprises cocatalyst, preferably aluminoxane and metellocene of structure formula: $$$ wherein $$$ is Zr or Hf; $$$ and $$$ are alkyl or halogen; $$$ is hydrogen; $$$ is alkyl or aryl, $$$, $$$ is $$$ moro- or multistep chain in which $$$ is also substituted heteroatom, and m+n is 0 or 1. EFFECT: more efficient preparation method. 7 cl |
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Highly effective catalyst system comprises cocatalyst, preferably aluminoxane and metellocene of structure formula: $$$ wherein $$$ is Zr or Hf; $$$ and $$$ are alkyl or halogen; $$$ is hydrogen; $$$ is alkyl or aryl, $$$, $$$ is $$$ moro- or multistep chain in which $$$ is also substituted heteroatom, and m+n is 0 or 1. 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SUBSTANCE: present invention describes method of preparing high molecular weight polyolefin. Highly effective catalyst system comprises cocatalyst, preferably aluminoxane and metellocene of structure formula: $$$ wherein $$$ is Zr or Hf; $$$ and $$$ are alkyl or halogen; $$$ is hydrogen; $$$ is alkyl or aryl, $$$, $$$ is $$$ moro- or multistep chain in which $$$ is also substituted heteroatom, and m+n is 0 or 1. EFFECT: more efficient preparation method. 7 cl</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | ACYCLIC OR CARBOCYCLIC COMPOUNDS ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP |
| title | METHOD OF PREPARING POLYOLEFIN |
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