150096-53-0Relevant articles and documents
PROCESS FOR RECYCLING OF FREE LIGAND FROM THEIR CORRESPONDING METALLOCENE COMPLEXES
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Paragraph 0074-0076, (2013/04/10)
An efficient and economical process to recover ligands from metallocene complexes, where the free ligand recovered may be recycled to produce additional metallocene and metallocene complexes. The process comprises contacting a metallocene complex comprising a ligand with a protic composition under reaction conditions to decompose the metallocene complex and form a reaction product comprising free ligand and inorganic decomposition products; and recovering the free ligand from the reaction product
METALLOCENE COMPOUNDS, CATALYSTS COMPRISING THEM, PROCESS FOR PRODUCING AN OLEFIN POLYMER BY USE OF THE CATALYSTS, AND OLEFIN HOMO-AND COPOLYMERS
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, (2010/11/03)
Certain metallocene compounds are provided that, when used as a component in a supported polymerization catalyst under industrially relevant polymerization conditions, afford high molar mass homo polymers or copolymers like polypropylene or propylene/ethylene copolymers without the need for any α-branched substituent in either of the two available 2-positions of the indenyl ligands. The substituent in the 2-position of one indenyl ligand can be any radical comprising hydrogen, methyl, or any other C2-C40 hydrocarbon which is not branched in the α-position, and the substituent in the 2-position of the other indenyl ligand can be any C4-C40 hydrocarbon radical with the proviso that this hydrocarbon radical is branched in the β-position. This metallocene topology affords high melting point, very high molar mass homo polypropylene and very high molar mass propylene-based copolymers. The activity/productivity levels of catalysts including the metallocenes of the present invention are exceptionally high.
Silyl amines
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, (2008/06/13)
Silyl amine compounds which have a proton available for covalent bonding to a metallocene metal center are disclosed.