Patent
Metal complex compounds
TLDR
In this article, a monocyclopentadienyl or substituted cyclopentienyl metal complex containing compound useful as a polymerization catalyst corresponding to the formula: CpMX.n.sup.Abstract:
A monocyclopentadienyl or substituted monocyclopentadienyl metal complex containing compound useful as a polymerization catalyst corresponding to the formula: CpMX.sub.n.sup.+ A.sup.- wherein: Cp is a single η 5 -cyclopentadienyl or η 5 -substituted cyclopentadienyl group optionally covalently bonded to M through a substituent; M is a metal of Group 3-10 or the Lanthanide Series of the Periodic Table bound in an η 5 bonding mode to the cyclopentadienyl or substituted cyclopentadienyl group; X each occurrence independently is selected from the group consisting of hydride, halo, alkyl, aryl, silyl, germyl, aryloxy, alkoxy, amide, siloxy, neutral Lewis base ligands and combinations thereof having up to 20 non-hydrogen atoms, and optionally one X together with Cp forms a metallocycle with M; R is alkyl or aryl of up to 10 carbons; n is one or two depending on the valence of M; and A is a noncoordinating, compatible anion of a Bronsted acid salt.read more
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TL;DR: In this article, a method for using such system, for the enhanced production of homo and copolymer products of olefin, diolefin and/or acetylenically unsaturated monomers.
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Patent
Supported polymerization catalyst
TL;DR: An olefin polymerization catalyst comprising (a) a supported transition metal containing component, (b) a cocatalyst comprising an alumoxane and an organometallic compound of a metal of Groups IA, IIA, IIB, or IIIA of the Periodic Table.
Patent
Ionic metallocene catalyst compositions
TL;DR: Ionic catalyst compositions can be prepared by combining two components as discussed by the authors : a bis(cyclopentadienyl) Group IV-B metal complex containing at least one ligand which will combine irreversibly with the second component or at least a portion thereof such as a cation portion thereof.
Patent
Catalyst system of enhanced productivity
TL;DR: In this article, a method for using such system, for the enhanced production of homo and copolymer products of olefin, diolefin and/or acetylenically unsaturated monomers.
Patent
Olefin polymerization catalysts
TL;DR: In this paper, a Group IV B transition metal component and an alumoxane component are used to polymerize olefins to produce a high molecular weight polymer. But their system is not suitable for high temperature environments.
Patent
Catalysts, method of preparing these catalysts and method of using said catalysts
TL;DR: In this article, a catalyst is prepared by combining a first compound consisting of a bis(cyclopentadienyl) metal compound with a second compound which is an ion exchange compound comprising a cation which will irreversibly react with a ligand on said first component and an anion which is a single coordination complex comprising a plurality of lipophilic radicals covalently coordinated to and shielding a central chargebearing metal or metalloid atom.