High Activity Catalyst Compositions Containing Silicon-Bridged Metallocenes with Bulky Substituents

The present invention discloses catalyst compositions employing silicon-bridged metallocene compounds with bulky substituents. Methods for making these silicon-bridged metallocene compounds and for using such compounds in catalyst compositions for the polymerization of olefins also are provided.

Molybdenum (iv) amide precursors and use thereof in atomic layer deposition

Molybdenum (IV) amide complexes are disclosed herein corresponding in structure to Formula (I): wherein: L is —NR 1 R 2 ; R 1 and R 2 are C 1 -C 6 -alkyl or hydrogen; R is C 1 -C 6 -alkyl; and n is zero, 1, 2 or 3. Further, methods of forming MoO 2 films by atomic layer deposition (ALD) using Formula (I) complexes and Mo[N(Me)(Et)] 4 are disclosed herein.

Advanced transition metal catalytic systems in terms of comonomer incorporations and methods for preparing ethylene homopolymers or copolymers of ethylene and alpha-olefins using the same

Provided is a homogeneous catalytic system for use in preparing an ethylene homopolymer or a copolymer of ethylene and α-olefin, and more particularly a Group 4 transition metal compound in which a cyclopentadienyl derivative 3,4-positions of which are substituted with alkyls and an electron-donating substituent are crosslinked around a Group 4 transition metal. Also provided is a method of preparing an ethylene homopolymer or a copolymer of ethylene and α-olefin, having high molecular weight, under high-temperature solution polymerization conditions using the catalytic system including such a transition metal compound and a co-catalyst composed of an aluminum compound, a boron compound or a mixture thereof. The catalyst according to present invention has high thermal stability and enables the incorporation of α-olefin, and is thus effective in preparing an ethylene homopolymer or a copolymer of ethylene and α-olefin, having various properties, in industrial polymerization processes.

POLYMERIZATION CATALYSTS FOR PRODUCING POLYMERS WITH LOW MELT ELASTICITY

The present techniques relate to catalyst compositions, methods, and polymers encompassing a Group 4 metallocene compound comprising bridging η-cyclopentadienyl-type ligands, typically in combination with a cocatalyst, and a activator. The compositions and methods presented herein include ethylene polymers with low melt elasticity. 2. The ansa-metallocene of claim 1 , wherein X′ and X″ are independently F claim 1 , Cl claim 1 , Br claim 1 , or I.3. The ansa-metallocene of claim 2 , wherein Rand Rare independently the hydrocarbyl group or the trihydrocarbylsilyl group claim 2 , and wherein the hydrocarbyl group or the trihydrocarbylsilyl group have up to 20 carbon atoms.4. The method of claim 2 , wherein Rand Rare independently H claim 2 , methyl claim 2 , allyl claim 2 , ethyl claim 2 , propyl claim 2 , benzyl claim 2 , butyl claim 2 , pentyl claim 2 , hexyl claim 2 , or trimethylsilyl.5. The ansa-metallocene of claim 4 , wherein n is an integer from 1 to 6 claim 4 , inclusive.6. The ansa-metallocene of claim 4 , wherein Rand Rare independently a hydrocarbyl group having up to 6 carbon atoms.7. The ansa-metallocene of claim 2 , wherein Rand Rare independently methyl or phenyl.8. The ansa-metallocene of claim 2 , wherein Rand Rare independently H or methyl.9. The ansa-metallocene of claim 2 , wherein n is 1 or 2.10. The ansa-metallocene of claim 2 , wherein Rand Rare independently H or t-butyl.11. The ansa-metallocene of claim 1 , wherein X′ and X″ are independently H claim 1 , BH claim 1 , methyl claim 1 , phenyl claim 1 , benzyl claim 1 , neopentyl claim 1 , trimethylsilylmethyl claim 1 , CHCMePh claim 1 , CHSiMePh claim 1 , CHCMeCHPh claim 1 , or CHSiMeCHPh. This application is a continuation of U.S. patent application Ser. No. 13/349,484, entitled “Polymerization Catalysts for Producing Polymers With Low Melt Elasticity” filed on Jan. 12, 2012, which is a divisional of U.S. patent application Ser. No. 11/904,735, now U.S. Pat. No. 8,119,553, entitled “ ...

PROCESS FOR PRODUCTION OF MESO-FORM AND RACEMIC FORM METALLOCENE COMPLEXES

A method for producing an anionized meso-form double-cross-linked ligand represented by formula (3), including: bringing a compound represented by formula (1) into contact with a compound represented by formula (2) at −25° C. or less; and introducing an anionizing agent within 5 hours after the contact, wherein Rto Rare independently a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, or the like; A and A′ are independently a cross-linking group containing an atom belonging to the 14group of the periodic table; M and M′ are independently an atom belonging to the 1or the 2group of the periodic table. 3. The production method according to claim 1 , wherein A is dimethyl silylene or tetramethyl disilylene and A′ is dimethyl silylene or tetramethyl disilylene.4. A method for producing a double-cross-linked metallocene complex claim 1 , the method comprising forming a double-cross-linked metallocene complex from an anionized meso-form double-cross-linked ligand of formula (3) produced by the method of .5. The production method according to claim 2 , wherein A is dimethyl silylene or tetramethyl disilylene and A′ is dimethyl silylene or tetramethyl disilylene.6. A method for producing a double-cross-linked metallocene complex claim 2 , the method comprising forming a double-cross-linked metallocene complex from an anionized racemic-form double-cross-linked ligand of formula (4) produced by the method of . The invention relates to a meso-form and racemic-form double-cross-linked complexes, and a method for producing these double-cross-linked metallocene complexes.Various attempts have been made to obtain an olefin polymer of which the primary structure, the molecular weight or the like are controlled by changing variously the structure of a metallocene complex structure (Patent Documents 1 and 2, Non-Patent Documents 1 and 2). Of the structures of a metallocene complex, the effect of symmetry of a metallocene complex (racemic-form (C2 symmetric), meso-form ( ...

PROCESS FOR THE PRODUCTION OF PARA-XYLENE

A reforming process using a medium pore zeolite under conditions to facilitate the conversion of Cparaffinic compounds to para-xylene is provided. Para-xylene is produced at greater than thermodynamic equilibrium concentrations using the process. 1. A process for producing para-xylene comprising the steps of:{'sub': 8', '8, '(a) providing a Ccontaining feedstock, which contains at least 10 wt. % Cparaffinic hydrocarbons, to a reforming reaction zone that contains a reforming catalyst comprising ZSM-5 having a silica to alumina molar ratio of at least 200, and a crystallite size of less than 10 microns;'}{'sub': '8', '(b) contacting the Ccontaining feedstock under reforming reaction conditions in the reforming reaction zone to produce para-xylene and meta-xylene in a para-xylene to meta-xylene weight ratio of at least 0.9; and (c) separating the para-xylene from the meta-xylene.'}2. The process of claim 1 , wherein step (a) comprises providing the Ccontaining feedstock to the reforming reaction zone that contains a reforming catalyst comprising silicalite.3. The process of claim 1 , wherein step (a) comprises providing the Ccontaining feedstock to the reforming reaction zone that contains a reforming catalyst comprising a medium pore zeolite having a silica to alumina molar ratio of at least 200 claim 1 , a crystallite size of less than 10 microns and an alkali content of less than 5000 ppm.4. The process of claim 3 , wherein step (a) comprises providing a Ccontaining feedstock to a reforming reaction zone that contains a reforming catalyst comprising a medium pore zeolite having a silica to alumina molar ratio of at least 200 claim 3 , a crystallite size of less than 10 microns claim 3 , an alkali content of less than 5000 ppm and in the range of between 0.1 wt. % and 1 wt. % of platinum claim 3 , rhenium claim 3 , or combinations thereof.5. The process of claim 1 , wherein step (b) further comprises producing para-xylene and meta-xylene in the weight ratio of at ...

Processes and Systems for the Conversion of Hydrocarbons

A process for endothermic dehydrogenation including contacting a catalyst material in a moving bed reactor having at least one reaction zone, the moving bed reactor comprising a heat exchanger containing a heating medium, wherein the catalyst material and the heating medium do not contact one another, and wherein at least 50% of the delta enthalpy of the at least one reaction zone is provided by the heat exchanger; and contacting a feedstock comprising hydrocarbons with the catalyst material in the at least one reaction zone of the moving bed reactor under reaction conditions to convert at least a portion of the hydrocarbons to a first effluent comprising a product comprising alkenes, alkynes, cyclic hydrocarbons, and/or aromatics. 1. A process for endothermic dehydrogenation , the process comprising:contacting a catalyst material in a moving bed reactor having at least one reaction zone, the moving bed reactor comprising a heat exchanger containing a heating medium, wherein the catalyst material and the heating medium do not contact one another, and wherein at least 50% of the delta enthalpy of the at least one reaction zone is provided by the heat exchanger; andcontacting a feedstock comprising hydrocarbons with the catalyst material in the at least one reaction zone of the moving bed reactor under reaction conditions to convert at least a portion of the hydrocarbons to a first effluent comprising a product comprising alkenes, alkynes, cyclic hydrocarbons, and/or aromatics.2. The process of further comprising:separating at least some of the catalyst material from the first effluent to produce (1) a separated catalyst stream and (2) a product stream; andreturning the separated catalyst material to the moving bed reactor.3. The process of claim 2 , wherein the product stream is substantially catalyst-free.4. The process of claim 2 , wherein the product stream exits the moving bed reactor at an outlet temperature of about 350° C. to about 800° C. claim 2 , wherein a ...

METHOD FOR PREPARING TRICARBONYL TECHNETIUM-99M INTERMEDIATE

The invention provides a method for preparing a technetium-99m tricarbonyl intermediate. The method comprises reacting a manganese carbonyl compound used as a carbon monoxide source with pertechnetate and water to obtain the technetium-99m tricarbonyl intermediate. The method for preparing a technetium-99m tricarbonyl intermediate in an embodiment of the invention can complete the preparation of the intermediate at atmospheric pressure and room temperature. The method is easy to operate, uses easily obtained raw materials, has a high labeling yield, and can be used to prepare various types of technetium tricarbonyl labeled probes. 1. A method for preparing a technetium-99m tricarbonyl intermediate , comprising reacting a manganese carbonyl compound as a carbon monoxide source with pertechnetate and water to obtain the technetium-99m tricarbonyl intermediate.2. The method according to claim 1 , wherein the manganese carbonyl compound is one or more selected from the group consisting of manganese carbonyl claim 1 , manganese pentacarbonyl halide claim 1 , cyclopentadienyl manganese tricarbonyl claim 1 , methyl cyclopentadienyl manganese tricarbonyl claim 1 , cyclopentadienecarboxylic acid manganese tricarbonyl claim 1 , and 1-cyclopentadiene manganese tricarbonyl-N claim 1 ,N claim 1 ,N-trimethylammonium borohydride.3. The method according to claim 2 , which comprises reacting the pertechnetate with the manganese carbonyl compound and water in the presence of a reducing agent to obtain the technetium-99m tricarbonyl intermediate; wherein the manganese carbonyl compound is manganese carbonyl and/or manganese pentacarbonyl halide.4. The method according to claim 2 , which comprises reacting the pertechnetate with the manganese carbonyl compound and water in the presence of a reducing agent under UV light irradiation to obtain the technetium-99m tricarbonyl intermediate; wherein the manganese carbonyl compound is one or more selected from the group consisting of ...

TRANSITION METAL COMPOUND FOR OLEFIN POLYMERIZATION CATALYST, OLEFIN POLYMERIZATION CATALYST INCLUDING SAME, AND POLYOLEFIN POLYMERIZED BY USING OLEFIN POLYMERIZATION CATALYST

The present invention relates to a transition metal compound for an olefin polymerization catalyst, represented by chemical formula 1. The description of chemical formula 1 is as described in the specification. 2. The transition metal compound for an olefin polymerization catalyst of claim 1 ,{'sub': '1-20', 'wherein the X is each independently halogen or Calkyl,'}{'sup': 1', '3', '4, 'wherein the R, Rand Rare each hydrogen,'}{'sup': '2', 'sub': '1-20', 'wherein the Ris Calkyl,'}{'sup': 5', '6, 'sub': 1-20', '6-20', '4-20, 'wherein the Rand Rare each independently Calkyl or Caryl, or linked to each other to form a substituted or unsubstituted aliphatic Cring,'}{'sup': 7', '10, 'sub': '5-20', 'wherein the Rto Rform a substituted or unsubstituted aromatic Cring, in which two adjacent ones are linked to each other.'}3. The transition metal compound for an olefin polymerization catalyst of claim 2 ,{'sup': 5', '6, 'sub': '4-20', 'wherein the Rand Rare each independently methyl, or linked to each other to form an aliphatic Cring.'}4. The transition metal compound for an olefin polymerization catalyst of claim 2 ,{'sup': 7', '10, 'sub': '6', 'wherein the Rto Rform a substituted or unsubstituted aromatic C, in which two adjacent ones are linked to each other.'}8. The olefin polymerization catalyst of claim 7 ,{'sub': '1-20', 'wherein the X is each independently halogen or Calkyl,'}{'sup': 1', '3', '4, 'wherein the R, Rand Rare each hydrogen,'}{'sup': '2', 'sub': '1-20', 'wherein the Ris Calkyl,'}{'sup': 5', '6, 'sub': 1-20', '6-20', '4-20, 'wherein the Rand Rare each independently Calkyl or Caryl, or linked to each other to form a substituted or unsubstituted aliphatic Cring,'}{'sup': 7', '10, 'sub': '5-20', 'wherein the Rto Rform a substituted or unsubstituted aromatic Cring, in which two adjacent ones are linked to each other.'}11. An olefin-based polymer formed by polymerization under the olefin polymerization catalyst according to .12. The olefin-based polymer of claim ...

Process for Producing Metallocenes

The present invention relates to an improved process for the preparation of metallocenes of the general formula (A) CR2L2MX2 as well as to intermediates useful in the synthesis of said metallocene and the use thereof as a catalyst in a polymerization of an olefin.

Oxocarbon-, Pseudooxocarbon- and Radialene Compounds and Their Use

The present invention relates to oxocarbon-, pseudooxocarbon- and radialene compounds as well as to their use as doping agent for doping an organic semiconductive matrix material, as blocker material, as charge injection layer, as electrode material as well as organic semiconductor, as well as electronic components and organic semiconductive materials using them. 2. Use according to claim 1 , characterized in that Y is perfluoroalkyl.3. Use according to claim 1 , characterized in that aryl is partially or completely fluorinated.4. Use according to claim 1 , characterized in that hetaryl is selected from pyridyl claim 1 , pyrimidyl claim 1 , triazine claim 1 , or oxadiazole.5. Use according to claim 1 , characterized in that R1-R8 are independently selected from perhalogenated and/or partially halogenated alkyl groups.7. Oxocarbon- claim 6 , pseudooxocarbon- and radialene compounds according to claim 6 , characterized in that hetaryl is selected from pyridyl claim 6 , pyrimidyl claim 6 , triazine claim 6 , or oxadiazole.8. Use of oxocarbon- claim 6 , pseudooxocarbon- and radialene compounds according to or their radical anionic salts claim 6 , dianionic salts or charge transfer complexes with donors as organic ferromagnets.9. Use of oxocarbon- claim 6 , pseudooxocarbon- and radialene compounds according to or their radical anionic salts claim 6 , dianionic salts or their charge transfer complexes with donors as organic conductors.10. Organic semiconductive material containing at least one organic matrix compound and one doping agent claim 1 , characterized in that the doping agent is one or more oxocarbon- claim 1 , pseudooxocarbon- or radialene compounds according to .11. Organic semiconductive material according to claim 10 , characterized in that the molar doping ratio of doping agent to matrix molecule and/or the doping ratio of doping agent to monomeric units of a polymeric matrix molecule is between 1:1 and 1:100 claim 10 ,000.12. Electronic component with an ...

METALLOCENE COMPLEX AND METHOD FOR PRODUCING OLEFIN POLYMER

The present invention provides a metallocene complex capable of producing a homopolypropylene having a high melting point in the homopolymerization of propylene, and a production method of an olefin polymer using the same. The metallocene complex of the present invention is represented by formula [I]. 2. The metallocene complex according to claim 1 , wherein in the formula [I] claim 1 , Rand Rmay be the same or different and are an alkyl group having a carbon number of 1 to 6.3. The metallocene complex according to claim 1 , wherein in the formula [I] claim 1 , Rand Rmay be the same or different and are an alkyl group having a carbon number of 1 to 6.4. The metallocene complex according to claim 1 , wherein in the formula [I] claim 1 , A is a divalent hydrocarbon group having a carbon number of 3 to 6 and forms a 4- to 7-membered ring and m is an integer of 0 to 6.5. The metallocene complex according to claim 1 , wherein in the formula [I] claim 1 , R claim 1 , R claim 1 , R claim 1 , R claim 1 , Rand Rare a hydrogen atom.7. A catalyst for olefin polymerization claim 1 , comprising the metallocene complex according to .8. A catalyst for olefin polymerization claim 1 , comprising each of the following components (A) claim 1 , (B) and (C):{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'component (A): the metallocene complex according to ,'}component (B): a compound reacting with the component (A) to form an ion pair, or an ion-exchange layered silicate, andcomponent (C): an organoaluminum compound.9. The catalyst for olefin polymerization according to claim 8 , whereinthe component (B) is an ion-exchange layered silicate.10. A method for producing an olefin polymer claim 7 , comprising performing a polymerization or copolymerization of olefin by using the catalyst for olefin polymerization according to .11. A method for producing a propylene-based polymer by using the catalyst for olefin polymerization according to claim 7 , comprising:(i) a step of polymerizing ...

Transition Metal Compound, Catalyst Composition and Method for Preparing Polypropylene Using the Same

The present disclosure relates to a novel transition metal compound of the following Chemical Formula 1, which exhibits high hydrogen reactivity with excellent catalytic activity for propylene polymerization, and is useful in the preparation of a polypropylene having a narrow molecular weight distribution and a low melting point, a catalyst composition including the same, and a method for preparing a polypropylene using the same, 2. The transition metal compound of claim 1 , wherein the M is zirconium (Zr) or hafnium (Hf).3. The transition metal compound of claim 1 , wherein the Rand Rare each independently Clinear or branched alkyl claim 1 , Clinear or branched alkoxyalkyl claim 1 , or Caryl.4. The transition metal compound of claim 1 , wherein the Rto Rare each independently Clinear or branched alkyl.5. The transition metal compound of claim 1 , wherein the Ris phenyl claim 1 , phenyl substituted with Clinear or branched alkyl claim 1 , phenyl substituted with Clinear or branched alkylsilyl claim 1 , naphthyl claim 1 , naphthyl substituted with Clinear or branched alkyl claim 1 , or naphthyl substituted with Clinear or branched alkylsilyl.6. The transition metal compound of claim 1 , wherein the Rand Rare each independently Clinear or branched alkyl.9. A catalyst composition comprising the transition metal compound of .10. The catalyst composition of claim 9 , comprising the transition metal compound and a support.11. The catalyst composition of claim 9 , further comprising at least one cocatalyst selected from the group consisting of compounds represented by the following Chemical Formulae 2 to 4:{'br': None, 'sup': '22', 'sub': 'm', '—[Al(R)—O]—\u2003\u2003[Chemical Formula 2]'}in Chemical Formula 2,{'sup': '22', 'sub': 1-20', '1-20, 'Rare the same as or different from each other, and are each independently halogen, Calkyl, or Chaloalkyl; and'} {'br': None, 'sup': '23', 'sub': '3', 'J(R)\u2003\u2003[Chemical Formula 3]'}, 'm is an integer of 2 or more;'}in ...

METAL COMPLEX COMPRISING AMIDINE AND THIOPHENE FUSED CYCLOPENTADIENYL LIGANDS

A metal complex of the formula (1) TCyLMZ(1), wherein M is a group 4 metal, Z is an anionic ligand, p is the number 1 or 2, TCy is a thiophene-fused cyclopentadienyl-type ligand of the formula (2) 116-. (canceled)18. The metal complex according to wherein M is titanium.19. The metal complex according to claim 17 , wherein Z is independently selected from the group consisting of a halogen atom claim 17 , a Calkyl group claim 17 , a Caralkyl group claim 17 , a Caryl group and a Chydrocarbon-substituted amino group.20. The metal complex according to claim 17 , whereinM is Ti,{'sub': 1', '4, 'Z is selected from the group consisting of chlorine and C-C-alkyl, and'}p is 2.21. The metal complex according to claim 17 , wherein Subis selected from the group consisting of unsubstituted phenyl claim 17 , phenyl substituted with C-C-alkyl claim 17 , phenyl substituted with Cl and phenyl substituted with C-C-alkyl and with Cl substituted phenyl residue and Subis an amino radical of the formula —NRRwith Rand Rbeing individually selected from the group consisting of aliphatic hydrocarbyl claim 17 , halogenated aliphatic hydrocarbyl claim 17 , aromatic hydrocarbyl claim 17 , halogenated aromatic hydrocarbonyl residues whereby Roptionally forms a heterocyclic structure with Ror Sub.24. A process for manufacturing a metal complex according to claim 17 , comprising reacting a metal complex of formula (3){'br': None, 'sub': 'p+1', 'TCyMZ\u2003\u2003(3)'}{'claim-ref': {'@idref': 'CLM-00017', 'claim 17'}, 'with an amidine of the formula LH or its hydrohalogen acid salt LH.HZ wherein L has the meaning as defined in and Z means a halogen selected from Cl, Br, or F.'}25. A catalyst system comprising{'claim-ref': {'@idref': 'CLM-00017', 'claim 17'}, 'a) the metal complex according to ,'}b) an activator andc) optionally a scavenger.26. The catalyst system according to wherein the scavenger c) is a hydrocarbyl of a metal or metalloid of group 1-13 or its reaction products with at least one ...

ZIRCONIUM, HAFNIUM, TITANIUM PRECURSORS AND DEPOSITION OF GROUP 4 CONTAINING FILMS USING THE SAME

Group 4 transition metal-containing film forming compositions comprising Group 4 transition metal precursors having the formula: 2. The Group 4 transition metal-containing film forming composition of claim 1 , wherein the −1 anionic ligand is selected from the group consisting of NR′ claim 1 , OR′ claim 1 , Cp claim 1 , Amidinate claim 1 , β-diketonate claim 1 , and keto-iminate claim 1 , wherein R′ is a H or a C-Chydrocarbon group.3. The Group 4 transition metal-containing film forming composition of claim 2 , wherein the Group 4 transitional metal-containing precursor is selected from E is C.4. The Group 4 transition metal-containing film forming composition of claim 3 , wherein M is Zr.5. The Group 4 transition metal-containing film forming composition of claim 4 , wherein the Group 4 transitional metal precursor is selected from the group consistin of (MeN)—Zr—CH-1-(CH—CH—NMe)-3-(CH—CH—NMe)- claim 4 , (MeN)—Zr—CH-1-Me-2-(CH—CH—NMe)-4-(CH—CH—NMe)- claim 4 , (Cp)—Zr—CH-1-(CH—CH—NMe)-3-(CH—CH—NMe)- claim 4 , and (Cp)—Zr—CH-1-Me-2-(CH—CH—NMe)-4-(CH—CH—NMe)-.6. The Group 4 transition metal-containing film forming composition of claim 3 , wherein M is Hf.7. The Group 4 transition metal-containing film forming composition of claim 6 , wherein the Group 4 transitional metal precursor is selected from the group consisting of (MeN)-Hf—CH-1-(CH—CH—NMe)-3-(CH—CH—NMe)- claim 6 , (MeN)—Hf—CH-1-Me-2-(CH—CH—NMe)-4-(CH—CH—NMe)- claim 6 , (Cp)—Hf—CH-1-(CH—CH—NMe)-3-(CH—CH—NMe)- and(Cp)—Hf—CH-1-Me-2-(CH—CH—NMe)-4-(CH—CH—NMe)-.8. The Group 4 transition metal-containing film forming composition of claim 3 , wherein M is Ti.9. A method of depositing of a Group 4 transition metal-containing film on a substrate claim 3 , comprising the steps of:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'introducing a vapor of the Group 4 transition metal-containing film forming composition of into a reactor having a substrate disposed therein and depositing at least part of the Group 4 ...

ZIRCONIUM, HAFNIUM, TITANIUM PRECURSORS AND DEPOSITION OF GROUP 4 CONTAINING FILMS USING THE SAME

Group 4 transition metal-containing film forming compositions are disclosed comprising Group 4 transition metal precursors having the formula: 2. The Group 4 transition metal-containing film forming composition of claim 1 , wherein the −1 anionic ligand is selected from the group consisting of NR′ claim 1 , OR′ claim 1 , Cp claim 1 , Amidinate claim 1 , β-diketonate claim 1 , and keto-iminate claim 1 , wherein R′ is H or a C-Chydrocarbon group.3. The Group 4 transition metal-containing film forming composition of claim 2 , wherein A is N and E is C.4. The Group 4 transition metal-containing film forming composition of claim 3 , wherein M is Ti.5. The Group 4 transition metal-containing film forming composition of claim 4 , wherein the Group 4 transitional metal precursor is selected from the group consisting of (NMe)-Ti-Pyrrole-(CH—CH—NMe)- claim 4 , (NMe)-Ti-Pyrazole-(CH—CH—NMe)- claim 4 , (NMe)-Ti-Imidazole-(CH—CH—NMe)- claim 4 , (NMe)(Cp)-Ti-Pyrrole-(CH—CH—NMe)- claim 4 , (NMe)(Cp)-Ti-Pyrazole-(CH—CH—NMe)- claim 4 , and (NMe)(Cp)-Ti-Imidazole-(CH—CH—NMe)-.6. The Group 4 transition metal-containing film forming composition of claim 3 , wherein M is Zr.7. The Group 4 transition metal-containing film forming composition of claim 6 , wherein the Group 4 transitional metal precursor is selected from the group consisting of (NMe)-Zr-Pyrrole-(CH—CH—NMe)- claim 6 , (NMe)-Zr-Pyrazole-(CH—CH—NMe)- claim 6 , (NMe)-Zr-Imidazole-(CH—CH—NMe)- claim 6 , (NMe)(Cp)-Zr-Pyrrole-(CH—CH—NMe)- claim 6 , (NMe)(Cp)-Zr-Pyrazole-(CH—CH—NMe)- claim 6 , and (NMe)(Cp)-Zr-Imidazole-(CH—CH—NMe)-.8. The Group 4 transition metal-containing film forming composition of claim 3 , wherein M is Hf.9. The Group 4 transition metal-containing film forming composition of claim 8 , wherein the Group 4 transitional metal precursor is selected from the group consisting of (NMe)-Hf-Pyrrole-(CH—CH—NMe)- claim 8 , (NMe)-Hf-Pyrazole-(CH—CH—NMe)- claim 8 , (NMe)-Hf-Imidazole-(CH—CH—NMe)- claim 8 , (NMe)(Cp)-Hf- ...

1-OCTENE COMPOSITION

The present invention relates to a 1-octene composition. The 1-octene composition according to the present invention is prepared by ethylene oligomerization and comprises a high content of 1-octene and monomers useful for copolymerization of 1-octene at the same time. 2. The 1-octene composition of comprising 0.1 to 1% by weight of three or more of the compounds represented by Chemical Formulae 1 to 4.3. The 1-octene composition of comprising 99% by weight or more of 1-octene.4. The 1-octene composition of comprising all of the compounds represented by Chemical Formulae 1 to 4.6. The method of claim 5 , wherein the transition metal source is any one or more selected from the group consisting of chromium(III)acetylacetonoate claim 5 , tris(tetrahydrofuran)chromium trichloride claim 5 , chromium(III)-2-ethylhexanoate claim 5 , chromium(III)tris(2 claim 5 ,2 claim 5 ,6 claim 5 ,6-tetramethyl-3 claim 5 ,5-heptanedionate) claim 5 , chromium(III)benzoylacetonate claim 5 , chromium(III)hexafluoro-2 claim 5 ,4-pentanedionate claim 5 , and chromium(III)acetate hydroxide. This application claims the benefit of Korean Patent Application No. 10-2015-0077366 filed on Jun. 1, 2015, and Korean Patent Application No. 10-2015-0125688 filed on Sep. 4, 2015 with the Korean Intellectual Property Office, the disclosures of which are incorporated herein by reference in their entirety.The present invention relates to a 1-octene composition which is prepared by ethylene oligomerization and comprises a high content of 1-octene and monomers useful for copolymerization of 1-octene at the same time.Linear alpha-olefin is widely used in important commercial substances such as comonomers, detergents, lubricants, plasticizers or the like, and in particular, 1-hexene and 1-octene are commonly used as comonomers for controlling density of polyethylene during preparation of linear low density polyethylene (LLDPE).In the conventional preparation process of LLDPE (Linear Low-Density Polyethylene), ...

Oxocarbon-, Pseudooxocarbon- and Radialene Compounds and Their Use

The present invention relates to oxocarbon-, pseudooxocarbon- and radialene compounds as well as to their use as doping agent for doping an organic semiconductive matrix material, as blocker material, as charge injection layer, as electrode material as well as organic semiconductor, as well as electronic components and organic semiconductive materials using them. 2. The electronic component as claimed in claim 1 , wherein Y is perfluoroalkyl.3. The electronic component as claimed in claim 2 , wherein the perfluoroalkyl is CF.4. The electronic component as claimed in claim 1 , wherein the aryl is partially or completely fluorinated.5. The electronic component as claimed in claim 1 , wherein the hetaryl is selected from pyridyl claim 1 , pyrimidyl claim 1 , triazine claim 1 , or oxadiazole.6. The electronic component as claimed in claim 1 , wherein R-Rare independently selected from perhalogenated and/or partially halogenated alkyl groups.7. The electronic component as claimed in claim 6 , wherein R-Rare independently selected from perfluorinated alkyl groups.8. The electronic component as claimed in claim 1 , in the form of an organic light emitting diode claim 1 , a photovoltaic cell claim 1 , an organic solar cell claim 1 , an organic diode claim 1 , or an organic field effect transistor.9. The electronic component as claimed in claim 1 , wherein hetaryl is the substituted or unsubstituted aromatic heterocyclic compound or biheteroaryl claim 1 , and hetaryl is electron-deficient. This application is a divisional of U.S. patent application Ser. No. 15/817,398, filed Nov. 20, 2017, which is a divisional of U.S. patent application Ser. No. 14/570,443, filed Dec. 15, 2014, now U.S. Pat. No. 9,876,172, which is a divisional of U.S. patent application Ser. No. 14/080,340, filed Nov. 14, 2013, now U.S. Pat. No. 8,911,645, which is a divisional of U.S. patent application Ser. No. 13/178,855, filed Jul. 8, 2011, now U.S. Pat. No. 8,617,426, which is a divisional of U.S. ...

TRANSITION METAL COMPOUND AND METHOD FOR PRODUCING OLEFIN POLYMER

A transition metal compound from Periodic Table Group 3 to 10 or lanthanide, of formula (I): 2. The compound of claim 1 , wherein the “n” represents 0 or 1.4. The compound of claim 1 , wherein the “m” represents 0 or 1.5. The compound of claim 1 , wherein the E represents Si or Ge.6. The compound of claim 1 , wherein the M represents a metal element belonging to Group 4 of the periodic table.7. The compound of claim 1 , wherein the R's each independently represent a hydrogen atom claim 1 , an alkyl group claim 1 , an aryl group claim 1 , a halogen atom claim 1 , an amino group claim 1 , or a sulfur-containing group claim 1 , and when the R's each represent an alkyl group claim 1 , two adjacent alkyl groups may form a ring.8. A production method for an olefin-based polymer claim 1 , comprising polymerizing an olefin in the presence of a polymerization catalyst containing the transition metal compound of .9. The method of claim 8 , wherein the polymerization catalyst further contains a boron compound capable of reacting with the transition metal compound to form an ionic complex. The present invention relates to a transition metal compound and a production method for an olefin-based polymer including using the transition metal compound as a catalyst.Hitherto, in a polymerization reaction of an olefin-based polymer, a polymerization catalyst containing, for example, a transition metal compound and a promoter component (e.g., a metallocene catalyst or a Ziegler catalyst) has been generally used.In, for example, Patent Literature 1, there is a disclosure of a catalyst for polymerizing olefins, which is obtained by bringing a transition metal compound having a specific structure, a compound that can react with the transition metal compound to form an ionic complex, and an organoaluminum compound into contact with each other.PTL 1: JP 2010-265473 AIn recent years, in, for example, a hot-melt adhesive, from the viewpoints of improving its productivity and preventing its ...

METHOD FOR PRODUCING THIN FILM CONTAINING MOLYBDENUM, THIN-FILM-FORMING MATERIAL, AND MOLYBDENUM IMIDE COMPOUND

In the method of the present invention for producing a thin film, including introducing, onto a substrate, a vapor that has been obtained by vaporizing a thin-film-forming material including a molybdenum imide compound represented by the following formula (I) and that includes the molybdenum imide compound; and then forming a thin film including molybdenum on the substrate by decomposing and/or chemically reacting the molybdenum imide compound. The present invention relates to a method for producing a thin film containing molybdenum by using vapor formed by vaporizing a specific molybdenum imide compound, a thin film containing molybdenum and produced using the production method, and a material for thin film formation using the production method, and a novel molybdenum imide compound.A thin film containing molybdenum can be used for an organic light emitting diode, a liquid crystal display, a plasma display panel, a field emission display, a thin film solar cell, a low-resistance ohmic as well as other electronic devices and semiconductor devices. The thin film is used mainly as a member of an electronic component such as a barrier film.Examples of the method for producing the thin film mentioned above include a sputtering methods, an ion plating method, MOD methods such as a coating thermal decomposition method, and a sol-gel method, as well as chemical vapor deposition methods. Chemical vapor deposition (hereinafter sometimes referred to simply as CVD) methods including an ALD (Atomic Layer Deposition) method are optimal production processes because of their possession of many merits such as being excellent in composition controllability and step coverage, being suitable for mass-production, and being capable of hybrid integration.Various molybdenum compounds have conventionally been known as molybdenum compounds to be used as a material for a CVD method. In, for example, patent literature 1 have been reported biscyclopentadienylmolybdenum dihydride, ...

Metallocene Synthesis Process

A process to synthesize a Group 4 ansa-metallocene. The process includes reacting an alkaline earth metal dianion dicyclopentadiene ligand-Lewis base complex with a Group 4 metal tetrahalide in the presence of an alkali metal halide, and forming the Group 4 ansa-metallocene dihalide with high yield and purity. 1. A process for synthesizing a Group 4 ansa-metallocene comprising:(i) reacting a bridged dicyclopentadienyl dianion-alkaline earth metal-Lewis base complex with a Group 4 metal tetrahalide in the presence of an alkali metal halide; and(ii) forming the Group 4 ansa-metallocene dihalide.3. The process of claim 2 , wherein:{'sup': 1', '4, 'sub': 1', '40, 'each Rand Ris independently hydrogen, alkoxide or a Cto Csubstituted or unsubstituted hydrocarbyl group;'}{'sup': 2', '3', '8', '9', '2', '3, 'sub': l', '40', '2', '3', '2', '3', '1', '20', '2', '3', '2', '3, 'each R, R, R, and Ris independently hydrogen, alkoxide or a Cto Csubstituted or unsubstituted hydrocarbyl group or is —CH—SiR′or —CH—CR′, and each R is independently hydrogen or a Cto Csubstituted or unsubstituted hydrocarbyl, provided that at least one R′ is not H and at least one of Rand Ris —CH—SiR′or —CH—CR;'}{'sup': 7', '19, 'sub': 1', '40, 'each Rand Ris independently hydrogen, alkoxide or a Cto Csubstituted or unsubstituted hydrocarbyl group; and'}{'sub': 1', '10, 'T is a bridging group comprising a group 14 atom and one or more of hydrogen, a C-Clinear hydrocarbyl group, or substituted hydrocarbyl group.'}4. The process of claim 1 , wherein the reaction in (i) is in a fluid medium comprising a Lewis base.5. The process of claim 1 , wherein an initial molar ratio of the alkali metal halide to the bridged dicyclopentadienyl dianion-alkaline earth metal-Lewis base complex in the reaction in (i) is equal to or greater than 1.6. The process of claim 1 , wherein the Group 4 ansa-metallocene dihalide from (ii) has a purity equal to or greater than 70 weight percent wherein the purity is determined on a ...

METALLOCENE COMPLEX, PREPARATION METHOD THEREOF AND CATALYST COMPOSITION

This invention provides a metallocene complex and the preparation method thereof and a catalyst composition. This catalyst composition comprises a metallocene complex represented by formula (I) and an organic boron salt. Compared to the prior art, the catalyst used in this invention, which is the metallocene complex represented by formula (I), does not contain any side chain, and the coordination space of the central metal has a large opening degree. Therefore, the catalytic activity for more sterically hindered monomers is higher, and the comonomer incorporation is also higher. Furthermore, the metallocene complex represented by formula (I) used in this invention is a heterocyclic ring fused cyclopentadienyl ligand. Heterocyclic rings have relatively strong electron-donating capacity. By fusing a cyclopentadienyl group using heterocyclic rings, it is possible to change the electronic effect of the metal center and in turn increase the activity of catalyst. Therefore, by using the metallocene complex represented by formula (I), it is possible to prepare copolymers of ethylene with other olefins at high activity and high comonomer incorporation, and it is also possible to catalyze the polymerization of styrene and substituted styrene at high syndiotacticity and high activity. 2. The metallocene complex according to claim 1 , characterized in that said C1-C20 aliphatic group is selected from one of a methyl group claim 1 , an ethyl group claim 1 , a propyl group claim 1 , an isopropyl group claim 1 , a butyl group claim 1 , a sec-butyl group claim 1 , and a tert-butyl group.3. The metallocene complex according to claim 1 , characterized in that said Xand Xare each independently selected from one of a silylamino group claim 1 , a dimethylamino group claim 1 , a diethylamino group claim 1 , a dipropylamino group claim 1 , a N claim 1 ,N-dimethylaminophenyl group claim 1 , a trimethylsilylmethyl group claim 1 , a bis(trimethylsilyl)methyl group claim 1 , an o- ...

1-OCTENE COMPOSITION

The present invention relates to a 1-octene composition. The 1-octene composition according to the present invention is prepared by ethylene oligomerization and comprises a high content of 1-octene and monomers useful for copolymerization of 1-octene at the same time. 14-. (canceled)6. The method of claim 5 , wherein the transition metal source is any one or more selected from the group consisting of chromium(III)acetylacetonoate claim 5 , tris(tetrahydrofuran)chromium trichloride claim 5 , chromium(III)-2-ethylhexanoate claim 5 , chromium(III)tris(2 claim 5 ,2 claim 5 ,6 claim 5 ,6-tetramethyl-3 claim 5 ,5-heptanedionate) claim 5 , chromium(III)benzoylacetonate claim 5 , chromium(III)hexafluoro-2 claim 5 ,4-pentanedionate claim 5 , and chromium(III)acetate hydroxide.8. The method of claim 5 , wherein the cocatalyst is one or more selected from the group consisting of compounds represented by the following Chemical Formulae 7 to 9:{'br': None, 'sub': 14', 'c, '—[Al(R)—O]—\u2003\u2003[Chemical Formula 7]'}{'sub': '14', 'claim-text': {'br': None, 'sub': 15', '3, 'D(R)\u2003\u2003[Chemical Formula 8]'}, 'wherein Ris the same as or different from each other, and each independently a halogen radical, a hydrocarbyl radical having 1 to 20 carbon atoms, or a halogen-substituted hydrocarbyl radical having 1 to 20 carbon atoms, and c is an integer of 2 or more,'}{'sub': '15', 'claim-text': {'br': None, 'sup': +', '−, '[L-H][Q(E)4]\u2003\u2003[Chemical Formula 9]'}, 'wherein D is aluminium or boron, Ris the same as or different from each other, and each independently hydrogen or halogen, hydrocarbyl having 1 to 20 carbon atoms, or halogen-substituted hydrocarbyl having 1 to 20 carbon atoms,'}{'sup': '+', 'wherein L is a neutral Lewis base, [L-H]is a Bronsted acid, Q is boron or aluminium in the +3 oxidation state, and E is each independently an aryl group having 6 to 20 carbon atoms or an alkyl group having 1 to 20 carbon atoms, in which one or more hydrogen atoms are ...

1-OCTENE COMPOSITION

The present invention relates to a 1-octene composition. The 1-octene composition according to the present invention is prepared by ethylene oligomerization and comprises a high content of 1-octene and monomers useful for copolymerization of 1-octene at the same time. 18-. (canceled)10. The polyethylene copolymer of claim 9 ,wherein the unsaturated C8 comonomers comprise 0.1 to 1% by weight, based on the total weight of the unsaturated C8 comonomers, of three or more of the compounds represented by Chemical Formulae 1 to 4.11. The polyethylene copolymer of claim 9 ,wherein the unsaturated C8 comonomers comprise 99% by weight or more, based on the total weight of the unsaturated C8 comonomers, of 1-octene.12. The polyethylene copolymer of claim 9 ,wherein the unsaturated C8 comonomers comprise all of the compounds represented by Chemical Formulae 1 to 4. This application claims the benefit of Korean Patent Application No. 10-2015-0077366 filed on Jun. 1, 2015, and Korean Patent Application No. 10-2015-0125688 filed on Sep. 4, 2015 with the Korean Intellectual Property Office, the disclosures of which are incorporated herein by reference in their entirety.The present invention relates to a 1-octene composition which is prepared by ethylene oligomerization and comprises a high content of 1-octene and monomers useful for copolymerization of 1-octene at the same time.Linear alpha-olefin is widely used in important commercial substances such as comonomers, detergents, lubricants, plasticizers or the like, and in particular, 1-hexene and 1-octene are commonly used as comonomers for controlling density of polyethylene during preparation of linear low density polyethylene (LLDPE).In the conventional preparation process of LLDPE (Linear Low-Density Polyethylene), copolymerization of ethylene with alpha-olefin, for example, a comonomer such as 1-hexene and 1-octene is carried out in order to control density by forming branches in the polymer backbone.Therefore, there is a ...

SYNTHESIS OF CYCLIC ORGANIC COMPOUNDS AND METALLOCENES

A method comprising synthesizing a cyclic organic compound via reaction of an unsubstituted or substituted cycloheptene with an unsubstituted or substituted acrylic acid in the presence of phosphoric and/or sulfonic acid reagent to make the cyclic organic compound. Also, a method of synthesizing a ligand for a transition metal, and a related substituted ligand-metal complex and catalyst, from the unsubstituted or substituted cycloheptene and unsubstituted or substituted acrylic acid. Also, the cyclic organic compound, ligand, and substituted ligand-metal complex and catalyst synthesized thereby. Also a method of polymerizing an olefin with the catalyst to give a polyolefin, and the polyolefin made thereby.

Metallocene Compounds

Unsaturated and hydrogenated polyalpha-olefin products can be made with a high selectivity toward vinylidenes and tri-substituted vinylenes combined, a high selectivity toward vinylidenes, and a low selectivity toward 1,2-di-substituted vinylenes by using a catalyst system comprising a metallocene compound having the following structure in the polymerization reaction: 2. The metallocene compound of claim 1 , wherein M is selected from Ti claim 1 , Zr claim 1 , and Hf.3. The metallocene compound of claim 1 , wherein:{'sup': 1', '4, 'Rand Rare each independently a substituted or unsubstituted linear, branched linear, or cyclic C1-C30 hydrocarbyl group.'}4. The metallocene compound of claim 1 , wherein:{'sup': 5', '8, 'at least one of Rand Ris hydrogen.'}5. The metallocene compound of claim 1 , wherein:{'sup': 5', '8, 'both Rand Rare each independently a substituted or unsubstituted linear, branched linear, or cyclic C1-C50 hydrocarbyl group.'}8. The metallocene compound of claim 1 , whereinM is selected from Zr and Hf;X is independently selected from methyl, ethyl, benzyl, and halogen; andm is 2.9. The metallocene compound of claim 1 , which does not have a C1 claim 1 , C2 claim 1 , or Cs symmetry.10. The metallocene compound of claim 1 , wherein either the first cyclopentadienyl ring or the second cyclopentadienyl ring is annelated to at least one ring to form a annelated ring structure selected from: a substituted or unsubstituted indenyl ring claim 1 , a substituted or unsubstituted tetrahydroindenyl ring claim 1 , and a substituted or unsubstituted 9H-fluorenyl ring. This application claims the benefit of Provisional Application No. 62/477,706, filed Mar. 28, 2017, the disclosures of which is incorporated herein by reference.The present disclosure relates to metallocene compounds and metallocene-catalyzed processes for making polyalpha-olefin (“PAO”) materials. In particular, the present disclosure relates metallocene compounds and processes for making ...

CYTOTOXIC TITANIUM AND VANADIUM COMPLEXES

The present application provides a family of highly resistant and water-stable Titanium and Vanadium complexes, which may be administered directly without a further hydrolysis step and which solubility and cell-penetration characteristics may be modifiable by reducing their particle size to the nanoscale.

Bicyclic Bridged Metallocene Compounds and Polymers Produced Therefrom

Disclosed herein are catalyst compositions containing bicyclic bridged metallocene compounds. These catalyst compositions can be used for the polymerization of olefins. For example, ethylene polymers produced using these catalyst compositions can be characterized by low molecular weights and high melt flow rates, and can be produced without the addition of hydrogen. 120-. (canceled)22. The compound of claim 21 , wherein:{'sub': 7', '12, 'E is a Cto Chydrocarbon bicyclic bridging group; and'}{'sup': 1', '2, 'sub': 1', '18, 'at least one of Cpand Cphas a Cto Chydrocarbyl substituent.'}23. The compound of claim 22 , wherein each X is Cl.24. The compound of claim 21 , wherein:{'sup': 1', '2, 'at least one of Cpand Cpis unsubstituted; and'}{'sub': 7', '10, 'E is a Cto Csaturated hydrocarbon or aromatic hydrocarbon bicyclic bridging group.'}25. The compound of claim 24 , wherein each X is Cl.26. The compound of claim 21 , wherein at least one of Cpand Cphas a substituent selected from H claim 21 , a halide claim 21 , a Cto Chydrocarbyl group claim 21 , a Cto Chalogenated hydrocarbyl group claim 21 , a Cto Chydrocarboxy group claim 21 , or a Cto Chydrocarbylsilyl group.27. The compound of claim 21 , wherein at least one of Cpand Cphas a substituent selected from a Cto Calkyl group or a Cto Cterminal alkenyl group.28. The compound of claim 21 , wherein:{'sup': '1', 'Cpis a substituted or unsubstituted indenyl or fluorenyl group; and'}{'sup': '2', 'Cpis a substituted or unsubstituted cyclopentadienyl group.'}29. The compound of claim 28 , wherein E is a Cto Chydrocarbon bicyclic bridging group.30. The compound of claim 29 , wherein:M is Zr; andeach X is Cl.31. The compound of claim 28 , wherein:{'sup': 1', '2, 'at least one of Cpand Cpis unsubstituted; and'}{'sub': 7', '10, 'E is a Cto Csaturated hydrocarbon or aromatic hydrocarbon bicyclic bridging group.'}33. The compound of claim 32 , wherein E is a Cto Chydrocarbon bicyclic bridging group.34. The compound of claim 33 , ...

Stereoselective synthesis of bridged metallocene complexes

The present invention provides methods of making stereo-enriched ansa-metallocene compounds using an unchelated amine compound. Generally, these methods result in a rac:meso isomer selectivity of the stereo-enriched ansa-metallocene compound of greater than 4:1.

Method for preparing transition metal complexes, transition metal complexes prepared using the method, catalysts composition containing the complexes

The present invention provides a novel transition metal complex where a monocy- clopentadienyl ligand to which an amido group is introduced is coordinated, a method for synthesizing the complex, and olefin polymerization using the same. The method for preparing a transition metal complex according to the present invention comprises a step of blocking a by- reaction of a nitrogen atom using a compound containing a protecting group, and thus it is possible to prepare a transition metal complex in a simpler manner in a high yield. Further, the transition metal complex according to the present invention has a pentagon ring structure having an amido group connected by a phenylene bridge in which a stable bond is formed in the vicinity of a metal site, and thus, sterically monomers can easily approach the transition metal complex. When a catalyst composition comprising the transition metal complex is applied in copoly- merization of ethylene and monomers having large steric hindrance, a very low density polyolefin copolymer having a density of less than 0.910 g/cc, in addition to a polyolefin having a high molecular weight and a linear low density, can be prepared. Furthermore, the reactivity is also very high.

Novel fourth group transition metal compound having cyclopentadienyl ligand, method of preparing compound, and method of preparing olefin polymer using compound

The present invention relates to a novel cyclopentadienyl compound, a fourth group transition metal compound having the cyclopentadienyl compound, a method of preparing the fourth group transition metal compound, a method of preparing an olefin polymer by using the fourth group transition metal compound, and an olefin polymer prepared by using the method.

Hafnocene catalyst compounds and process for use thereof

This invention relates to hafnium metallocene compounds having a group substituted at the 3 position of at least one cyclopentadienyl ring represented by the formula -R 20 -SiR' 3 or -R 20 -CR' 3 where R 20 is a C 1 to C 4 hydrocarbyl and R' is a C 1 to C 20 substituted or unsubstituted hydrocarbyl.

铪茂催化剂化合物及其使用方法

本发明涉及铪金属茂化合物，其具有在至少一个环戊二烯基环的3位取代由式‑R 20 ‑SiR′ 3 或‑R 20 ‑CR′ 3 表示的基团，其中R 20 是C 1 ‑C 4 烃基和R′是C 1 ‑C 20 取代或未取代的烃基。

Transition metal compounds, polymerization catalysts for olefins, olefin polymers and process for their production

Halogen substituted metallocene compounds for olefin polymerization

A metallocene compound is represented by the formula (1): wherein: M is a Group 3, 4, 5 or 6 transition metal atom, or a lanthanide metal atom, or actinide metal atom, preferably a Group 4 transition metal atom selected from titanium, zirconium or hafnium; E is a substituted or unsubstituted monocyclic or polycyclic arenyl ligand pi-bonded to M; A is a substituted or unsubstituted polycyclic arenyl ligand that is pi-bonded to M and has a different ring structure than the E ligand; at least one of the A and E ligands includes at least one halogen substituent directly bonded to an sp2 carbon at a bondable ring position; Y is a bridging group containing at least one Group 13, 14, 15, or 16 element and any single position of the ring structure of A and to any single position of the ring structure of E; and y is zero or 1, indicating the absence (y = 0) or presence (y =1) of Y; and each X is a univalent anionic ligand, or two X are joined and bound to the metal atom to form a metallocycle ring, or two X are joined to form a chelating ligand, a diene ligand, or an alkylidene ligand; provided that when E is an unsubstituted cyclopentadienyl ligand, either y is one or A is not 2-bromofluorenyl or 2,7-dibromofluorenyl.

Mono-indenyl transition metal compounds and polymerization therewith

This invention relates to transition metal compounds, catalyst systems comprising said compounds and polymerization processes using such catalyst systems, where the transition metal compound is represented by the formula: This invention also relates to process to produce such compounds.

Process for converting the achiral meso form of an ansa-metallocene complex into the chiral racemic form

The invention concerns a process for converting the achiral meso form of an ansa-metallocene complex into the chiral racemic form, the conversion being carried out photochemically in the presence of a chiral auxiliary reagent.

전이금속 화합물, 리간드 화합물 및 이를 포함하는 촉매 조성물

본 발명은 신규한 전이금속 화합물, 리간드 화합물 및 이를 포함하는 촉매 조성물에 관한 것이며, 저밀도 영역의 높은 분자량을 가지는 올레핀계 중합체의 제조에 있어 중합 반응의 촉매로 유용하게 사용될 수 있으며, 고온 조건에서 용융지수(MI)가 높은 올레핀계 중합체의 제조에 유용하게 사용될 수 있다.

Organometallic compounds

Organometallic compounds

Organometallic compounds of transition metals containing optionally tetrahydrogenated 2-indenyl as a first ligand of the formula wherein A represents the benzo system or the tetrahydrocyclohexyl system and the other symbols have the range of meanings given in the description, are prepared by reaction of with Mg or Zn and with a dihalide Hal 2 —Y—Hal 3 (III) to form the novel intermediates further reaction with ZM 2 p (Va) or ZR 9 p (Vb) to form and further reaction with a transition metal compound of the formula M 1 X q (VIII). Many compounds (I) are not C2-symmetrical. The compounds (I) can be used as catalysts for the (co)polymerization of olefins, diolefins and/or cycloolefins.

Preparation of ansa metallocene compounds

The present invention refers to a process for overcoming the problem of formation of oligomeric-polymeric complexes during preparation of cyclopentadienyl metallocenes comprising ligands bridged by at least three carbon atoms. According to the invention a process is presented comprising the steps of deprotonating a biscyclopentadienyl ligand bridged by a chain having a backbone of at least three carbon atoms by a base and reacting the deprotonated ligand with at least one alkali or alkaline earth metal alkylating agent and a salt of a transition metal belonging to group 3, 4, 5, 6 or to the lanthanide or actinide groups of the Periodic Table of the Elements.

Monocyclopentadienyl transition metal catalyst and olefin polymerization process

Disclosed is a monocyclopentadienyl metal compound that can polymerize polyolefins as part of a catalyst system. The monocyclopentadienyl compound can specifically be (C 5 H 4 CH 2 CH 2 NMe 2 )TiCl 3 .

Stereoselective synthesis of bridged metallocene complexes

The present invention provides methods of making stereo-enriched ansa-metallocene compounds using an unchelated amine compound. Generally, these methods result in a rac:meso isomer selectivity of the stereo-enriched ansa-metallocene compound of greater than 4:1.

Hafnocene catalyst compounds and process for use thereof

Preparation of mono-aryl-substituted methylene-bridged substituted cyclopentadienyl-fluorenyl ligands and zirconium complexes derived thereof

The present invention discloses efficient methods for preparing mono-aryl-substituted cyclopentadienyl-fluorenyl catalyst components and their use in the isotactic polymerisation of propylene with very high productivity.

이핵 메탈로센 화합물, 및 이의 제조방법

본 발명은 높은 분자량을 갖는 폴리올레핀을 제조할 수 있는 신규한 구조의 이핵 메탈로센 화합물, 및 이의 제조방법에 관한 것이다. 본 발명에 따른 이핵 메탈로센 화합물은 신규한 구조의 이핵성 메탈로센 화합물이며, 단일 활성점 촉매와는 달리 기질과의 접근성이 높아 높은 활성을 나타내는 다중 활성점의 촉매를 제공할 수 있다.

Mono-indenyl transition metal compounds and polymerization therewith

This invention relates to transition metal compounds, catalyst sytems comprising said compounds and polymerization processes using such catalyst systems, where the transition metal compound is represented by the formula: or This invention also relates to process to produce such compounds.

High activity catalyst compositions containing silicon-bridged metallocenes with bulky substituents

The present invention discloses catalyst compositions employing silicon-bridged metallocene compounds with bulky substituents. Methods for making these silicon-bridged metallocene compounds and for using such compounds in catalyst compositions for the polymerization of olefins also are provided.

Monocyclopentadienyl complexes

Monocyclopentadienyl complexes in which the cyclopentadienyl system bears at least one bridged donor and at least one aryl group and a catalyst system comprising at least one of the monocyclopentadienyl complexes, and also processes for preparing them, the use of the catalyst system for the polymerization or copolymerization of olefins and a process for preparing polyolefins by polymerization or copolymerization of olefins in the presence of the catalyst system and the preparation of the associated cyclopentadienyl system.

High activity catalyst compositions containing silicon-bridged metallocenes with bulky substituents

The present invention discloses catalyst compositions employing silicon-bridged metallocene compounds with bulky substituents. Methods for making these silicon-bridged metallocene compounds and for using such compounds in catalyst compositions for the polymerization of olefins also are provided.

Verwendung von quadratisch planaren Übergangsmetallkomplexen als Dotand

Die vorliegende Erfindung betrifft die Verwendung eines quadratisch planaren Übergangsmetallkomplexes als Dotand, Ladungsinjektionsschicht, Elektrodenmaterial oder Speichermaterial.

Metallocenes and catalyst compositions derived therefrom

Metallocenes and catalyst systems for olefin polymerization derived therefrom. The metallocenes may be represented by the formula (I), wherein M1 preferably is zirconium or hafnium; and R12 is different from hydrogen.

Preparation of titanium (II) or zirconium (II) complexes

Titanium and zirconium complexes comprising a single, cyclic, delocalized n-bonded ligand group wherein the metal of said complexes is in the +2 formal oxidation state are prepared in high yield and purity by reaction of titanium and zirconium halides in the +3 or +4 oxidation state with an n-alkyl Grignard reagent. The complexes are used as catalyst components for α-olefin polymerization catalysts.

Method for producing octahydrofluorenyl metal complexes

Octahydrofluorenyl metal complexes, such as octahydrofluorenyltitanium trichloride, or ring substituted octahydrofluorenyl metal complexes wherein the metal is in the +2, +3 or +4 formal oxidation state are prepared by reduction of tetra- or hexa-hydrofluorenyl metal complexes. The reduction reaction may be carried out at ambient pressure and temperature in the presence of a catalyst. The process of the present invention permits preparation of octahydrofluorenyltitanium metal complexes from a series of high yield reactions starting with fluorene.

1,3-disubstituted indene complexes

The present invention relates to organometallic compounds of transition metals with an indenyl ligand bonded in the 2-position and substituted in the 1,3-position, a process for their production, and their use as catalysts for the (co)polymerization of olefinic and/or diolefinic monomers.

Monocyclopentadienyl transition metal catalyst and olefin polymerization process

Disclosed is a monocyclopentadienyl metal compound that can polymerize polyolefins as part of a catalyst system. The monocyclopentadienyl compound can specifically be (C 5 H 4 CH 2 CH 2 NMe 2 )TiCl 3 .

Process for the synthesis of mono- and dimethylmetallocenes and their solutions especially for use in the polymerization of olefins

Process for the depletion of inorganic by-products and organometallic by-products in the production of metallocenes and the economic recovery of the starting materials used

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.

Organo-titanium compounds and a process of preparing them

Process for preparing biscyclopentadienyl compounds

The invention relates to a process for preparing biscyclopentadienyl compounds of the general formula (CpR.sub.a).sub.2 --Q by reaction of CpR a , in a first step, in accordance with the general equation 2CpR.sub.a +(R.sup.3 R.sup.4).sub.c Mg→(CpR.sub.a).sub.2 Mg+cR.sup.3 H+cR 4 H and further reaction in accordance with the general equation (CpR.sub.a).sub.2 Mg+XQX.sup.1 →(CpR.sub.a).sub.2 Q+MgXX.sup.1

Method for producing bridged type transition metal complex

A method for producing a bridged type transition metal complex represented by the following formula (1), comprising the following steps (i) and (ii): step (i); a step for reacting a specific cyclopentadiene compound with an organic alkaline metal compound or an organomagnesium compound to produce an alkaline metal salt compound or a magnesium salt compound of the cyclopentadiene compound; and step (ii); a step for reacting the alkaline metal salt compound or magnesium salt compound of the cyclopentadiene compound with a specific transition metal compound, wherein at least the step (ii) is performed in the presence of an amine compound. According to the present invention, there can be provided a method for producing a bridged type transition metal complex having one cyclopentadiene type anion skeleton on an industrial scale in high yield without requiring an industrially disadvantageous low temperature and replacement of the solvent, which is capable of reducing the number of the steps.

Process for the preparation of titanium complexes

A new process is disclosed, particularly simple, convenient and practical, for the direct synthesis of titanium complexes of the formula (I): (D)(ZR 1 m ) n (A)TiL p X q , wherein (ZR 1 m ) n is a divalent group bridging D and A; D is a delocalized π-bonded moiety, which is bound in an η 5 bonding mode to Ti, and is preferably a Cp moiety; A is —O—, —S—, —N(R 2 )— or —P(R 2 )—, wherein R 2 is hydrogen, alkyl, cycloalayl, aryl, alkylaryl or arylalkl; L are monoanionic sigma ligands selected from alkyl, cycloalkyl, aryl, alkylaryl and arylalkyl groups; m is 1 or 2; n is 1-3; p is 1 or 2, q is 0 or 1 and p+q=2; said process comprises reacting a ligand of formula (H—D)(ZR 1 m ) n (A—H) with about 1 molar equivalent of TiX 4 in the presence of about (2+p) molar equivalent of L j B or LMgX wherein X is halogen or —OR′, B is an alkaline or alkaline-earth metal, and j is 1 or 2.

Transition metal catalytic systems and methods for preparing ethylene homopolymers or copolymers of ethylene and α-olefins using the same

Provided are transition metal catalytic systems for preparing ethylene homopolymers or copolymers of ethylene with α-olefins. More specifically, provided are Group 4 transition metal catalysts, which is characterized in that the Group 4 transition metal catalyst comprises around the Group 4 transition metal a cyclopentadiene derivative, and at least one naphthoxide ligand(s) having aryl substituent(s) that function(s) as an electron donor and serve(s) to stabilize the catalyst system by surrounding an oxygen atom that links the ligand to the transition metal at 2-position, and there is no cross-linkage between the ligands; catalytic systems comprising such transition metal catalyst and aluminoxane cocatalyst or boron compound cocatalyst; and processes for preparing ethylene homopolymers or copolymers of ethylene with α-olefins by using the same.

Synthesis of group 4 metal diene complexes

A process for preparing titanium or zirconium diene complexes wherein the metal is in the +2 formal oxidation state comprising contacting a conjugated or nonconjugated C 4-40 diene compound with a hydrocarbyloxide containing precursor complex.

Halogen substituted metallocene compounds for olefin polymerization

A metallocene compound is represented by the formula (1): wherein: M is a Group 3, 4, 5 or 6 transition metal atom, or a lanthanide metal atom, or actinide metal atom, preferably a Group 4 transition metal atom selected from titanium, zirconium or hafnium; E is a substituted or unsubstituted monocyclic or polycyclic arenyl ligand pi-bonded to M; A is a substituted or unsubstituted polycyclic arenyl ligand that is pi-bonded to M and has a different ring structure than the E ligand; at least one of the A and E ligands includes at least one halogen substituent directly bonded to an sp 2 carbon at a bondable ring position; Y is a bridging group containing at least one Group 13, 14, 15, or 16 element and any single position of the ring structure of A and to any single position of the ring structure of E; and y is zero or 1, indicating the absence (y=0) or presence (y=1) of Y; and each X is a univalent anionic ligand, or two X are joined and bound to the metal atom to form a metallocycle ring, or two X are joined to form a chelating ligand, a diene ligand, or an alkylidene ligand; provided that when E is an unsubstituted cyclopentadienyl ligand, either y is one or A is not 2-bromofluorenyl or 2,7-dibromofluorenyl.

Halogen substituted metallocene compounds for olefin polymerization

A metallocene compound is represented by the formula (1): AMXn-1 wherein M is a transition metal atom having a coordination number of n selected from Group 3, 4, 5 or 6 of the Periodic Table of Elements, or a lanthanide metal atom, or actinide metal atom; A is a substituted monocyclic or polycyclic arenyl ligand pi-bonded to M, wherein said arenyl ligand includes at least one halogen substituent directly bonded to any sp2 carbon atom at a bondable ring position of the ligand; and the or each X is a univalent anionic ligand, or two X are joined and bound to the metal atom to form a metallocycle ring, or two X are joined to form a chelating ligand, a diene ligand, or an alkylidene ligand.

Halogen substituted metallocene compounds for olefin polymerization

A metallocene compound is represented by the formula (1): AMX n-1 wherein M is a transition metal atom having a coordination number of n selected from Group 3, 4, 5 or 6 of the Periodic Table of Elements, or a lanthanide metal atom, or actinide metal atom; A is a substituted monocyclic or polycyclic arenyl ligand pi-bonded to M, wherein said arenyl ligand includes at least one halogen substituent directly bonded to any sp 2 carbon atom at a bondable ring position of the ligand; and the or each X is a univalent anionic ligand, or two X are joined and bound to the metal atom to form a metallocycle ring, or two X are joined to form a chelating ligand, a diene ligand, or an alkylidene ligand.

Halogen substituted metallocene compounds for olefin polymerization

A metallocene compound comprises a transition metal and at least one substituted monocyclic or polycyclic arene ligand bonded to the transition metal, wherein said arene ligand comprises at least one halogen substituent directly bonded to an sp 2 carbon atom at a bondable ring position of an aromatic five-membered ring of said arene ligand.

Preparation of metallocenes

A racemic mixture of a chiral, silicon bridged transition metal metallocene, which is substantially free of meso isomer, is precipitated directly from a reaction mixture as it is formed by reacting an organic solvent solution of an alkali metal salt of a silicon bridged ligand with a transition metal tetrahalide-ether complex.

Process for depleting by-products in reaction mixtures

A method for the depletion of inorganic byproducts from product mixtures produced during the synthesis of metallocenes comprises treating the mixture, which contains one or more metallocenes and at least one inorganic byproduct, with a polar extraction agent. Also claimed is the use of polar extraction agents for removing inorganic byproducts from metallocene synthesis product mixtures. Preferably the mixture is a crude metallocene synthesis reaction product. The extraction agent contains 5 - 100 vol.% one or more polar solvents. The amount of inorganic byproducts is reduced to less than 5 wt.%. The byproducts are inorganic salts and / or covalent metal halides.

Purification of metallocenes

Metallocenes, such as silicon bridged ansa-metallocenes, are purified by heating a slurry of the metallocene at elevated temperature in an aprotic, polar solvent so as to extract impurities from the metallocene into the solvent and then separating the impurity containing solvent from the metallocene.

Enhanced production of bridged hafnocenes

The reaction between a hafnium tetrahalide-diamine adduct and a metallated bis(cyclopentadienyl-moiety containing) ligand, offers great promise as a way of producing racemic hafnocenes, but involves a number of complications. Tetrahydrofuran, a commonly-used solvent/diluent for such reactions, when present in substantial portions in the liquid reaction medium containing the reactants and/or reaction product(s) has been found to cause a substantial reduction in yields of chiral hafnocenes. Apparently the presence of a substantial amount of THF causes or at least results in the formation of increased amounts of the undesirable meso isomer, tends to cause or result in tar formation, and results in a product having poor filterability. Thus large amounts of THF if fed to the reactor with the reactant(s) are purged to a suitably low level, replaced by a liquid aromatic hydrocarbon, and then the reaction mixture is heated to a higher reaction temperature. Large amounts of liquid paraffins and free diamine in the reaction mixture during reaction also contribute to tar formation and reduction in yields of chiral hafnocene. Thus the presence of such materials in the reaction mixture is kept to a minimum. These process modifications make it possible to increase yields of the chiral hafnocene, to reduce formation of the meso isomer, and to sharply reduce the amount of tar formation in the synthesis of chiral hafnocenes from diamine adducts of hafnium tetrahalide and metallated bis(cyclopentadienyl-moiety containing) ligands. Moreover, the hafnocene reaction product so formed has significantly improved filterability characteristics.

Catalytic process for isomerizing metallocenes

It has been discovered that the meso form of metallocenes can be catalytically isomerized to the racemic form of the metallocene. This is accomplished by heating an isomerization mixture formed from (i) a meso form of a bridged metallocene or a mixture of meso and racemic forms of a bridged metallocene, (ii) a Group 1 and/or 2 metal halide isomerization catalyst, and (iii) a liquid organic isomerization medium, such that at least a portion of the meso form of the metallocene is isomerized to the racemic form.

Enhanced synthesis of racemic metallocenes

Chiral metallocenes are prepared by reacting a salt of an asymmetric bis(cyclopentadienyl)-moiety-containing ligand with a tertiary heteroaromiatic amine adduct of a transition, lanthanide, or actinide metal halide in an organic solvent or diluent so as to produce said chiral metallocene.

Method for producing alkyl-bridged ligand systems and transition metal compounds

The invention relates to a method for producing highly substituted alkyl-bridged ligand systems on the basis of indene derivatives and transition metal compounds. Said alkyl-bridged ligand systems can be obtained in high yields using this method.

Method for producing metallocenes

The present invention relates to a process for preparing a metallocene, which comprises reacting a ligand starting compound with an adduct of the formula (I), M 1 X n D a   (I) where M 1 is a metal of group III, IV, V or VI of the Periodic Table of the Elements or an element of the lanthanide or actinide series, preferably titanium, zirconium or hafnium, particularly preferably zirconium, X are identical or different and are each halogen, C 1 –C 10 -alkoxy, C 6 –C 10 -aryloxy, C 1 –C 10 -alkylsulfonate such as mesylate, triflate, nonaflate, C 6 –C 10 -arylsulfonate such as tosylate, benzenesulfonate, C 1 –C 10 -alkylcarboxylate such as acetate, formate, oxalate or 1,3-dicarbonylate such as acetylacetonate or fluorinated 1,3-dicarbonylate, in particular chlorine, bromine, particularly preferably chlorine, n is an integer and is 2,3,4,5 or 6 and corresponds to the oxidation number of the metal M 1 , a is an integer or fraction and 0<a≦4 and a is preferably in the range from 0.5 to 2.5 and is in particular 1, 1.5 or 2, and D is a linear, cyclic or branched oligoether or polyether containing at least two oxygen atoms or an oligothioether or polythioether containing at least two sulfur atoms.

Reduction of concentration of inorganic by-products and organometallic by-products in the preparation of metallocenes and economical recovery of the starting materials used

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.

Process for reducing the concentration of by-products in product mixtures

The present invention relates to a process for reducing the concentration of organometallic and/or inorganic by-products in product mixtures formed in the synthesis of metallocenes, which comprises treating a mixture comprising one or more metallocenes and one or more organometallic and/or inorganic by-products with a polar extractant.

Method for producing alkyl-bridged ligand systems and transition metal compounds

The invention relates to a method for producing highly substituted alkyl-bridged ligand systems on the basis of indene derivatives and transition metal compounds. Said alkyl-bridged ligand systems can be obtained in high yields using this method.

Method for producing alkyl-bridged ligand systems and transition metal compounds

Highly substituted alkyl-bridged ligand systems based of indene derivatives and transition metal compounds can be obtained in high yields by a novel process.

Metallocene compounds and process for the preparation of propylene polymers

A metallocene compound of formula (I) wherein M is zirconium, hafnium or titanium; X is hydrogen, halogen, or a hydrocarbyl radical optionally containing heteroatoms; R 2 , R 3 , R 4 and R 5 , are hydrogen or hydrocarbyl radicals; R 6 is a hydrocarbil radical; L is a divalent bridging group T is a radical of formula (II), (III), (IV) or (V), wherein R 8 and R 9 are a hydrogen atom or a hydrocarbyl radical. with the proviso that at least one group among R 1 , R 5 , R 6 and R 8 is a group of formula C(R 11 ) 2 R 12 wherein R 11 , equal to or different from each other, is an hydrocarbyl radical; and R 12 is hydrogen or an hydrocarbyl radical. These compounds are fit for the preparation of propylene copolymers.

Metallocenes, use in catalyst system for producing olefin polymers

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; R 1 is a linear C 1 -C 20 -alkyl radical; R 2 is a hydrogen atom or hydrocarbon R 3 , R 4 , R 5 , R 6 , R 7 , and R 8 , 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 T 1 is a sulphur atom, an oxygen (O) atom or a NR; R 9 , R 10 and R 11 are hydrogen atoms or hydrocarbon radicals; T 2 , T 3 , T 4 , T 5 , and T 6 are carbon atoms (C) or nitrogen atoms (N); m 1 , m 2 , m 3 , m 4 and m 5 are 0 or 1; R 12 , R 13 , R 14 , R 15 and R 16 are hydrogen atoms or hydrocarbon radicals with the provisos that at least one of R 12 , R 13 , R 14 , R 15 and R 16 is different from hydrogen atoms, and that no more than two of T 2 , T 3 , T 4 , T 5 and T 6 are nitrogen atoms.

Process for the production of halide metallocene compounds

Process for preparing halide metallocene compounds comprising the step of reacting the dialkyl derivative with a halogenating agent of formula R 3 x TL w wherein: L is chlorine, iodine or bromine; R 3 is hydrogen or a hydrocarbon group; T is a metal of groups 2-14 of the periodic table of the elements; and x is ≧1 so that x+w is equal to the oxidation state of the metal T.

Method for producing dinuclear transition metal complexes as olefin polymerization catalyst

The object of the present invention is to provide a method for producing a dinuclear transition metal complex of formula (1) by reacting cyclopentadienyl ligand compound of formula (2) and substituted transition metal of formula (3). Cp-Si(R) 2 HNANHSi(R) 2 -Cp  (Formula 2) wherein, A represents C 2-30 alkylene, substituted alkylene, arylene, substituted arylene, cycloalkylene, substituted cycloalkylene, biarylene or substituted biarylene; Cp represents a ligand compound having cyclopentadienyl skeleton selected from the group consisting of cyclopentadienyl, substituted cyclopentadienyl, indenyl, substituted indenyl, fluorenyl and substituted fluorenyl; R represents C 1-20 alkyl or substituted alkyl; H represents hydrogen atom; Si represents silicon atom; and N represents nitrogen atom. M(NR 2 ′) 4   (Formula 3) M represents transition metal of Periodic Table IV selected from titanium, zirconium and hafnium; R′ represents C 1-6 alkyl. wherein, X represents halogen atom or alkylamine; and A, R, Si, N, Cp and M are same as defined above.

Preparation of metallocenes

Metallocenes which are useful as olefin polymerization catalysts are prepared by reacting a compound of a metal of the group 4 to 10, lanthanide or actinide series of the Periodic Table of the Elements with a magnesium halide salt of a cyclopentadienyl containing ligand in the presence of an organic halide so as to form the metallocene while simultaneously raising the oxidation state of the metal.

Verfahren zur Herstellung von metallorganischen Titanverbindungen

Unsymmetrical unbridged metallocene compounds and catalyst-compositions comprising the same

본 발명은 비대칭성 비가교형 메탈로센 화합물 및 이를 포함하는 촉매 조성물에 관한 것으로서, 화학식 (Cp * R 1 )(CpR 2 )MX 2 (여기서, Cp * 는 싸이클로알킬이 치환된 싸이클로펜타디에닐 라디칼이며, 싸이클로펜타디에닐에 치환되어 있는 싸이클로알킬은 탄소수 3 내지 11의 싸이클로하이드로카빌 라디칼 중에서 선택되는 1종이며, Cp는 싸이클로펜타디에닐 핵을 가진 라디칼이고, R 1 과 R 2 는 Cp * 과 Cp에 각각 치환된 하나 이상의 치환체로서, 이들 치환체는 서로 동일하거나 다를 수 있으며, 수소, 포스핀, 아미노, 탄소수 1 내지 20의 알킬, 알콕시, 알킬아미노, 디알킬아미노, 알콕시-알킬, 아릴, 아릴록시-알킬, 알케닐, 알킬아릴, 또는 아릴알킬 라디칼이고, M은 주기율표의 4B, 5B 또는 6B족의 전이금속이고, X는 동일하거나 다를 수 있으며, 할로겐, 탄소수 1 내지 20의 알킬, 아릴, 알케닐, 알킬아릴, 아릴알킬, 알콕시 및 아릴록시 라디칼로 이루어진 군중에서 선택되는 1종이다.)로 표현되는 올레핀 중합용 메탈로센 화합물을 제공한다. 상기 메탈로센 화합물은 촉매 활성이 우수하며, 이를 이용하면 분자량이 큰 폴리올레핀을 중합할 수 있다. The present invention relates to an asymmetric uncrosslinked metallocene compound and a catalyst composition comprising the same, wherein the general formula (Cp * R 1 ) (CpR 2 ) MX 2 (where Cp * is a cyclopentadienyl radical substituted with cycloalkyl) And cycloalkyl substituted by cyclopentadienyl is one selected from a cyclohydrocarbyl radical having 3 to 11 carbon atoms, Cp is a radical having a cyclopentadienyl nucleus, and R 1 and R 2 are each Cp * and One or more substituents each substituted with Cp, these substituents may be the same or different from one another, hydrogen, phosphine, amino, alkyl having 1 to 20 carbon atoms, alkoxy, alkylamino, dialkylamino, alkoxy-alkyl, aryl, aryl Is an oxy-alkyl, alkenyl, alkylaryl, or arylalkyl radical, M is a transition metal of group 4B, 5B or 6B of the periodic table, X may be the same or different and is halogen, in carbon atoms Provides a metallocene compound of the 20-alkyl, aryl, alkenyl, alkylaryl, arylalkyl, alkoxy, and aryl is one member selected from the group consisting of hydroxy radicals.) Metal for olefin polymerization is represented by. The metallocene compound has excellent catalytic activity, and by using this, it is possible to polymerize a polyolefin having a large molecular weight. 메탈로센 촉매, 알루미녹산, 올레핀 중합, 싸이클로알킬, 싸이클로펜타디에닐 Metallocene Catalyst, Aluminoxane, Olefin Polymerization, Cycloalkyl, ...

1,3-disubstituted indene complexes

Organometallic compounds of group 4, 5 or 6 transition metals with 1,3-di-substituted 2-indenyl as ligand are new. New organometallic compounds of transition metals with 1,3-di-substituted 2-indenyl as ligand are of formula (I). A = benzo or tetrahydrocyclohexyl system; Q<1>, Q<2>, Q<3> = hydrogen (H) or substituents in the 1-, 3- and 4,5,6,7-positions respectively; M<1> = group 4, 5 or 6 transition metal; X = anion; n = 0-4; m = 0-4; Y = -C(R<1>)(R<2>)-, -Si(R<1>)(R<2>)-, -Ge(R<1>)(R<2>)-, -C(R<1>)(R<2>)-C(R<3>)(R<4>)-, -C(R<1>)(R<2>)-Si(R<3>)(R<4>)- or -Si(R<1>)(R<2>)-Si(R<3>)(R<4>)- bridge; Z = second ligand. The full definitions are given in the DEFINITIONS (Full Definitions) Field. Independent claims are also included for: (1) new intermediate 1,3-di-substituted 2-( omega -halo)-alkyl-, -silyl, -germanyl- and -silylalkyl-indenes (II); (2) preparation of (II) by reacting 1,3-di-substituted 2-haloindenes (III) with a group 1, 2 or 12 metal or compound and a Y dihalide; (3) preparation of (I) by preparing and optionally isolating (II), reacting with a Z derivative and then reacting with a compound of transition metal M<1>.

Metallocene compounds, metallocene catalysts prepared from the compounds and method of polymerizing olefins with the catalysts

본 발명은 신규 메탈로센 화합물 그리고 올레핀 중합에 이들을 촉매로 사용하는 것에 관한 것으로서, 본 발명은 하기 화학식 1 또는 2의 실라싸이클로알킬기로 치환된 싸이클로펜타디에닐 라디칼 또는 인데닐 라디칼 등의 리간드를 갖는 전이금속 화합물인 신규 메탈로센 화합물에 관한 것이며, 상기 메탈로센 화합물과 알루미녹산, 불소로 치환된 방향족 보론계의 이온형 화합물 또는 개질된 클레이 등과 같은 활성체로 이루어진 메탈로센 촉매는 용액공정, 슬러리 또는 기상공정에서 폴리올레핀 제조에 사용할 수 있다. The present invention relates to novel metallocene compounds and their use as catalysts for olefin polymerization, and the present invention has ligands such as cyclopentadienyl radicals or indenyl radicals substituted with silaccycloalkyl groups of the following general formulas (1) and (2). The present invention relates to a novel metallocene compound, which is a transition metal compound, and a metallocene catalyst comprising an active substance such as an aromatic boron-based compound substituted with aluminoxane, fluorine, or modified clay, is a solution process, It can be used to prepare polyolefin in slurry or gas phase process.

Integrated process for preparation of diene complexes

Disclosed is a process for preparing bridged Group 4 metal complexes containing a neutral diene ligand starting from the corresponding novel, metal diene containing complexes by reaction thereof with the divalent derivative of a bridged bidentate ligand compound. The novel, intermediate metal diene complexes, their formation from tetravalent metal salts and an integrated process combining both process steps are claimed.

Method for preparing cyclopentadienyl-type ligands and metallocene compounds

In accordance with the present invention there is provided a process for preparing a cyclopentadienyl-type ligand, the process comprises (1) reacting an alkali metal salt of a cyclopentadienyl-type compound and an aminofulvene compound to form a monoanion, (2) reacting the monoanion and a reducing agent to form a dianion, and (3) reacting the dianion and water to produce the cyclopentadienyl-type ligand. Another aspect of the present invention includes a process for preparing a metallocene compound comprising reacting the dianion of step (2) and a transition metal-containing compound to form the metallocene compound. Another aspect of the present invention includes a process for preparing a metallocene compound comprising reacting the ligand of step (3) and an alkali metal compound to form a dianion and then reacting the dianion with a transition metal-containing compound to form the metallocene compound.

Preparation of biscyclopentadienyl diene complexes

Eljárás két ciklőpentadienilcsőpőrtőt vagy szűbsztitűáltciklőpentadienilcsőpőrtőt tartalmazó fémkőmplexek előállítására, ahőla kőmplex a (CP2)MD általánős képletnek felel meg, ahől M jelentésetitán, cirkóniűm vagy hafniűm +2-es vagy +4-es főrmális őxidációsállapőtban, Cp jelentése egymástól függetlenül, minden előfőrdűlásnálszűbsztitűált vagy szűbsztitűált ciklőpentadienilcsőpőrt, amelydelőkalizált p-elektrőnőkkal kapcsőlódik a fémhez, ahől aszűbsztitűált ciklőpentadienilcsőpőrt 1-5 egymástól függetlenszűbsztitűenssel van helyettesítve, amely lehet szénhidrőgéncsőpőrt,szilil-, germilcsőpőrt, halőgénatőm, cianő-, hidrőkarbil-őxi-,szilőxicsőpőrt vagy ezek keverékei, a szűbsztitűens legfeljebb 20 nemhidrőgénatőmőt tartalmaz, és adőtt esetben két ilyen szűbsztitűens (acianőcsőpőrt és a halőgénatőm kivételével) együtt azt eredményezi,hőgy a Cp kőndenzált, többszörös gyűrűszerkezetűvé válik vagy együttegy, vagy két, a két Cp csőpőrthőz kapcsőlódó összekötő elemet alkőt,D jelentése stabil, kőnjűgált dién ligandűm amely adőtt esetben egyvagy több szénhidrőgéncsőpőrttal, szililcsőpőrttal, hidrőkarbil-szilil-csőpőrttal, szilil-hidrőkarbil-csőpőrttal vagy ezek keverékévelhelyettesítve van, és ahől a D 4-40 nem hidrőgénatőmőt tartalmaz, ésaz M-hez őlyan kötésen keresztül kapcsőlódik, amely delőkalizált p-elektrőnőkból áll, amikőr M a +2-es főrmális őxidációs állapőtban van,és két s-kötést alkőt az M-mel, amikőr M a +4-es főrmális őxidációsállapőtban van, őly módőn, hőgy bármely sőrrendben elvégzik akövetkező eljárási lépéseket: a) egy M'X3 vagy M''X4 általánősképletnek megfelelő, 4-es csőpőrtba tartőzó fémsót vagy Lewis-bázisaddűktját reagáltatják; b) D'-vel kőnjűgált diénnel, c)redűkálószerrel, és d) egy CpM* vagy n általánős képletű vegyülettel,ahől M' jelentése titán, cirkóniűm vagy hafniűm a +3-as főrmálisőxidációs állapőtban, M'' jelentése titán, cirkóniűm vagy hafniűm a+4-es főrmális őxidációs állapőtban, X jelentése halőgenid, 1-6szénatőmős ...

Asymmetrically substituted metallocenes which are functionalized on one cyclopentadienyl ring, and their preparation

The invention relates to compounds of the general formula (1) (R.sup.1 R.sup.2 X.sup.1 Si((R.sup.3).sub.a Cp))((R.sup.4).sub.a Cp)M(X 2 ) n (1) in which R 1 and R 2 =independently of one another an alkyl or aryl radical, X 1 =F, Cl, Br, I, p-tolylSO 3 --, F 3 CSO 3 --, F 3 CCO 2 -- or H 3 CCO 2 --, R 3 and R 4 =identical or different alkyl, alkyl ether, aryl or aryl ether groups where 0≦a≦4, Cp=a cyclopentadienyl, indenyl, tetrahydroindenyl or fluorenyl radical, M=a transistion metal from groups 3-6 (IUPAC notation), in particular Ti, Zr or Hf, X 2 =F, Cl, Br or I, the oxidation number of the transition metal minus 2. Also disclosed is a process of making compounds of formula (1) by reacting the metallocene counterpart thereof with acid HX 1 .

Process for preparing metallocenes

Synthesis of metallocenes and enrichment of their rac isomer

Provided is method of synthesizing stereorigid metallocene having chiral center and enriching its rac isomer content; comprising steps of: a) selecting desired cyclopentadienyl ring-containing compound capable of forming metallocene with chiral center and dissolving compound in suitable solvent; b) contacting mixture of a), under suitable conditions of mixing and temperature for sufficient time to react, with suitable alkyl alkali metal compound; c) dissolving solid created in b) with sufficient suitable solvent; d) contacting solution created in c) with suitable halogenated compound with which bridge between two cyclopentadienyl ring-containing compounds may be formed, under suitable conditions of mixing and temperature for sufficient time to react; e) removing solvent, and, optionally, removing residual starting cyclopentadienyl ring-containing compound; f) dissolving solid created in e) in suitable solvent and contacting with suitable alkyl alkali metal compound under suitable conditions of temperature and mixing for a sufficient time to react; g) removing solvent, and, optionally, removing residual starting cyclopentadienyl ring-containing compound; h) slurrying or suspending solid created in g) with sufficient suitable solvent; i) contacting slurry or suspension of h) with sufficient suitable metal tetrahalide under suitable conditions of temperature and mixing for a sufficient time to react; j) removing residual alkali halide from solid created in i); k) removing solvent from solid of j); l) enriching rac metallocene isomer by suspending solid of k) in suitable solvent in suitable amount under suitable conditions of temperature and mixing for time sufficient to solvate non-rac isomers; m) removing supernatant; n) repeating steps l) and m) with diminishing amounts of suitable solvent as necessary to attain desired enrichment level; and o) recovering desired product.

Enhanced synthesis of racemic metallocenes

Chiral metallocenes are prepared by reacting a salt of an asymmetric bis(cyclopentadienyl) moiety containing ligand with a chelate diamine adduct of a transition, lanthanide, or actinide metal halide in an organic solvent medium so as to produce said chiral metallocene.

Enhanced synthesis of racemic metallocenes

Chiral metallocenes are prepared by reacting a salt of an asymmetric bis(cyclopentadienyl) moiety containing ligand with a chelate diamine adduct of a transition, lanthanide, or actinide metal halide in an organic solvent medium so as to produce said chiral metallocene.

Preparation of chiral titanocenes

A method for producing dialkylsilyl (2-alkyl-4-aryl indenyl) titanocenes including rac-Me2Si(2-methyl-4-phenylindenyl)-titanium dichloride is described.

Preparation of chiral titanocenes

A method for producing dialkylsilyl (2-alkyl-4-aryl indenyl) titanocenes including rac-Me 2 Si(2-methyl-4-phenylindenyl)-titanium dichloride is described.

Composition organique hydrocarburée contenant un métallo-cyclopentadiényle