324534-23-8Relevant academic research and scientific papers
Catalyst system for producing polyethylene copolymers in a high temperature solution polymerization process
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Page/Page column 20, (2019/06/10)
Catalyst system for producing ethylene copolymers in a high temperature solution process, the catalyst system comprising (i) a metallocene complex of formula (I) wherein M is Hf X is a sigma ligand, L is a bridge of the formula —SiR82—, wherein each R8 is independently a C1-C20-hydrocarbyl, tri(C1-C20-alkyl)silyl, C6-C20-aryl, C7-C20-arylalkyl or C7-C20-alkylaryl n is 0, 1 or 2 R1 and R1′ are the same or can be different and can be a linear or branched C1-C6-alkyl group, R2 and R2′ are the same or are different and are a CH2—R9 group, with R9 being H or linear or branched C1-C6-alkyl group R5 and R5′ are the same or are different and can be H or a linear or branched C1-C6-alkyl group or a OR group, wherein R is a C1-C6-alkyl group R6 and R6′ are the same or are different and can be H or a C(R10)3 group, with R10 being the same or different and R10 can be H or a linear or branched C1-C6-alkyl group or R5 and R6 and/or R5′ and R6′ taken together form an unsubstituted 4-7 membered ring condensed to the benzene ring of the indenyl moiety, and R7 and R7′ can be the same or are different and can be H or a linear or branched C1-C6-alkyl group (ii) an aluminoxane cocatalyst and/or (iii) a boron containing cocatalyst and (iv) optionally an aluminum alkyl compound.
Non-metallocene compounds, method for the production thereof and use of the same for the polymerisation of olefins
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, (2008/06/13)
The invention relates to a method for producing special transition metal compounds, to novel transition metal compounds and to the use of the same for the polymerisation of olefins.
Transition metal compound, ligand system, catalyst system and the use of the latter for polymerisation and copolymerisation of olefins
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, (2008/06/13)
A process for the polymerization of olefins, in particular a process for the copolymerization of propylene with further olefins, is carried out in the presence of highly active catalyst systems comprising specifically selected metallocenes, in particular
Transition metal compound, ligand system, catalyst system and its use for the polymerization of olefins
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, (2008/06/13)
Ligand systems containing indenyl structures, transition metal compounds of the metallocene type and catalyst systems comprising such transition metal compounds are described. The novel transition metal compounds can be used in the polymerization of olefi
