摘要:
The present invention relates to organometallic transition metal compounds of formula (I) where M1 is an element of group 3, 4, 5 or 6 of the Periodic Table of the Elements or the lanthanides, X are identical or different and are each halogen, hydrogen, C1-C20-alkyl, C2-C20-alkenyl, C6-C22-aryl, alkylaryl or arylalkyl each having from 1 to 10 carbron atoms in the alkyl part and from 6 to 22 carbon atoms in the aryl part, -OR6 or -NR6R7, where two radicals X may also be joined to one another, n is a natural number from 1 to 4 which corresponds to the oxidation number of M1 minus 2, R1 is hydrogen or a C1-C40 radical, R2 is a substituted or unsubstituted C6-C40-aryl radical or C2-C40-heteroaromatic radical containing at least one heteroatom selected from the group consisting of O, N, S and P, R3 is hydrogen or a C1-C40 radical, or the radicals R2 and R3 together form a ring system, R4 is hydrogen or a C1-C40 radical, R5 is a C1-C40 radical, and Z is a divalent group CR8R9-CR10R11, where R8, R9, R10 and R11 are identical or different and are each hydrogen or a C1-C40 radical, biscyclopentadienyl ligand systems having such a substitution pattern, catalyst systems comprising at least one of the organometallic transition metal compounds of the present invention, a process for preparing polyolefins by polymerization or copolymerization of at least one olefin in the presence of one of the catalyst systems of the present invention and the use of the biscyclopentadienyl ligand systems of the present invention for preparing organometallic transition metal compounds.
摘要:
The present invention relates to a process for preparing transition metal compounds of the formula (I) having a specific substitution pattern, the corresponding transition metal compounds themselves and their use in the preparation of catalyst systems and also the use of the catalyst systems in the polymerization and copolymerization of olefins.
摘要:
The present invention relates to a process for preparing transition metal compounds of the formula (I) having a specific substitution pattern, the corresponding transition metal compounds themselves and their use in the preparation of catalyst systems and also the use of the catalyst systems in the polymerization and copolymerization of olefins.
摘要:
Organometallic transition metal compounds of the formula (I) where M1 is an element of group 3, 4, 5 or 6 of the Periodic Table of the Elements or the lanthanides; X are identical or different and are each halogen, hydrogen,C¿1?-C20-alkyl, C2-C20-alkenyl, C6-C22-aryl, alkylaryl or arylalkyl having from 1 to 10 carbon atoms in the alkyl part and from 6 to 22 carbon atoms in the aryl part, -OR?5 or -NR5R6¿, where two radicals X may also be joined to one another or two radicals X may together form a substituted or unsubstituted diene ligand, in particular a 1,3-diene ligand; where R?5 and R6¿ are each C¿1?-C10-alkyl, C6-C15-aryl, alkylaryl, arylalkyl, fluoroalkyl or fluoroaryl each having from 1 to 10 carbon atoms in the alkyl radical and from 6 to 22 carbon atoms in the aryl radical; n is a natural number from 1 to 4 which is equal to the oxidation number of M?1¿ minus 2; R1 is a C¿2?-C40 radical which is branched in the α position; R?2¿ is hydrogen or a C¿1?-C40 radical which may be branched or unbranched in the α position; R?3, R3a and R3b¿ are identical or different and are each hydrogen or a C¿1?-C40 radical, where at least one of the radicals R?3, R3a, R3b¿ is not hydrogen; R4 is a substituted or unsubstituted C¿6?-C40-aryl radical or C2-C40-heteroaromatic radical containing at least one heteroatom selected from the group consisting of O, N, S and P; T is a divalent C1-C40 group which together with the cyclopen tadienyl ring forms a further saturated or unsaturated ring system having a ring size of from 5 to 12 atoms, where T may contain the heteroatoms Si, Ge, N, P, O or S withing the ring system fused onto the cyclopentadienyl ring; and Z is a bridge consisting of a divalent atom or a divalent group, can be used in catalyst systems for preparing polyolefins by polymerization or copolymerization of at least one olefin. Biscyclopentadienyl ligand systems which have such a substitution pattern and can be used for preparing these organometallic transition metal compounds are also provided.
摘要:
A metallocene compound of formula (I): wherein M is zirconium, titanium and hafnium; X is a hydrogen atom, a halogen atom or a hydrocarbon radical; R1 is a linear C¿1?-C20-alkyl radical; R?2¿ is a hydrogen atom or hydrocarbon R?3, R4, R5, R6, R7, and R8¿, are hydrogen atoms or hydrocarbon radicals, A is a sulphur (S) atom or an oxygen (O) atom; Q is a radical of formula (II), (III) or (IV) being bonded to the indenyl at the position indicated by the symbol *; (II), (III), (IV) wherein T1 is a sulphur atom, an oxygen (O) atom or a NR; R?9, R10 and R11¿ are hydrogen atoms or hydrocarbon radicals; T?2, T3, T4, T5, and T6¿ are carbon atoms (C) or nitrogen atoms (N); m?1, m2, m3, m4 and m5¿ are 0 or 1; R?12, R13, R14, R15 and R16¿ are hydrogen atoms or hydrocarbon radicals with the provisos that at least one of R?12, R13, R14, R15 and R16¿ is different from hydrogen atoms, and that no more than two of T?2, T3, T4, T5 and T6¿ are nitrogen atoms.
摘要:
The present invention relates to organometallic transition metal compounds of formula (I) where M1 is an element of group 3, 4, 5 or 6 of the Periodic Table of the Elements or the lanthanides, X are identical or different and are each halogen, hydrogen, C1-C20-alkyl, C2-C20-alkenyl, C6-C22-aryl, alkylaryl or arylalkyl each having from 1 to 10 carbron atoms in the alkyl part and from 6 to 22 carbon atoms in the aryl part, -OR6 or -NR6R7, where two radicals X may also be joined to one another, n is a natural number from 1 to 4 which corresponds to the oxidation number of M1 minus 2, R1 is hydrogen or a C1-C40 radical, R2 is a substituted or unsubstituted C6-C40-aryl radical or C2-C40-heteroaromatic radical containing at least one heteroatom selected from the group consisting of O, N, S and P, R3 is hydrogen or a C1-C40 radical, or the radicals R2 and R3 together form a ring system, R4 is hydrogen or a C1-C40 radical, R5 is a C1-C40 radical, and Z is a divalent group CR8R9-CR10R11, where R8, R9, R10 and R11 are identical or different and are each hydrogen or a C1-C40 radical, biscyclopentadienyl ligand systems having such a substitution pattern, catalyst systems comprising at least one of the organometallic transition metal compounds of the present invention, a process for preparing polyolefins by polymerization or copolymerization of at least one olefin in the presence of one of the catalyst systems of the present invention and the use of the biscyclopentadienyl ligand systems of the present invention for preparing organometallic transition metal compounds.
摘要:
The present invention relates to a simple process for preparing specifically substituted indenes of formula (I) or (Ia) to compounds of formula (II) serving as starting materials and to the use of the compounds of formula (II) as starting materials for the synthesis of substituted indenes.
摘要:
Organometallic transition metal compounds of the formula (I) where M1 is an element of group 3, 4, 5 or 6 of the Periodic Table of the Elements or the lanthanides; X are identical or different and are each halogen, hydrogen,C¿1?-C20-alkyl, C2-C20-alkenyl, C6-C22-aryl, alkylaryl or arylalkyl having from 1 to 10 carbon atoms in the alkyl part and from 6 to 22 carbon atoms in the aryl part, -OR?5 or -NR5R6¿, where two radicals X may also be joined to one another or two radicals X may together form a substituted or unsubstituted diene ligand, in particular a 1,3-diene ligand; where R?5 and R6¿ are each C¿1?-C10-alkyl, C6-C15-aryl, alkylaryl, arylalkyl, fluoroalkyl or fluoroaryl each having from 1 to 10 carbon atoms in the alkyl radical and from 6 to 22 carbon atoms in the aryl radical; n is a natural number from 1 to 4 which is equal to the oxidation number of M?1¿ minus 2; R1 is a C¿2?-C40 radical which is branched in the α position; R?2¿ is hydrogen or a C¿1?-C40 radical which may be branched or unbranched in the α position; R?3, R3a and R3b¿ are identical or different and are each hydrogen or a C¿1?-C40 radical, where at least one of the radicals R?3, R3a, R3b¿ is not hydrogen; R4 is a substituted or unsubstituted C¿6?-C40-aryl radical or C2-C40-heteroaromatic radical containing at least one heteroatom selected from the group consisting of O, N, S and P; T is a divalent C1-C40 group which together with the cyclopen tadienyl ring forms a further saturated or unsaturated ring system having a ring size of from 5 to 12 atoms, where T may contain the heteroatoms Si, Ge, N, P, O or S withing the ring system fused onto the cyclopentadienyl ring; and Z is a bridge consisting of a divalent atom or a divalent group, can be used in catalyst systems for preparing polyolefins by polymerization or copolymerization of at least one olefin. Biscyclopentadienyl ligand systems which have such a substitution pattern and can be used for preparing these organometallic transition metal compounds are also provided.
摘要:
A process for separating inorganic and organometallic by-products from a mixture comprising at least one organometallic transition metal compound as product and at least one organometallic by-product and at least one inorganic by-product as by-products comprises the steps A) admixing the mixture comprising the product, the organometallic by-product and the inorganic by-product with a mixture comprising at least one polar organic extractant and water and separating off the undissolved residue, B) washing the residue from step A) with a nonpolar organic extractant or a mixture comprising at least one nonpolar organic extractant and at least one aprotic polar organic solvent and C) drying the residue which has been washed in step B) and comprises the organometallic transition metal compound.