METHOD FOR PRODUCING THERMOPLASTIC ELASTOMERS
Thermoplastic elastomers can be prepared by (co)polymerization of monomer s from the group consisting of C2-C8-.alpha.-olefins, C4-C15-diolefins and oth er monomers in the bulk, solution, slurry or gas phase, the catalysts employed being metallocene compounds or the .pi. complex compounds of the for...
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| creator | KELLY, WARREN MARK OSTOJA STARZEWSKI, KARL-HEINZ ALEKSANDER STUMPF, ANDREAS |
| description | Thermoplastic elastomers can be prepared by (co)polymerization of monomer s from the group consisting of C2-C8-.alpha.-olefins, C4-C15-diolefins and oth er monomers in the bulk, solution, slurry or gas phase, the catalysts employed being metallocene compounds or the .pi. complex compounds of the formulae (see figure I and II) in which CpI and CpII represent carbanions having a cyclopentadienyl-containing structure, .pi.I and .pi.II represent charged or electrically neutral .pi. systems, D represents a donor atom and A represents an acceptor atom, where D and A are linked by a reversible coordinate bond such that the donor group assumes a positive (part) charge and the acceptor group assumes a negative (part) charge, M ~represents a transition metal of sub-group III, IV, V or VI of the Period ic Table of the Elements (Mendeleev), including the lanthanides and actinides, X ~denotes one anion equivalent and n ~denotes the number zero, one, two, three or four, depending on the charge of M. |
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| subjects | 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 FOR PRODUCING THERMOPLASTIC ELASTOMERS |
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