| Patent Number |
Title Of Patent |
Date Issued |
| 7619106 |
Preparation of partially hydrogenated rac-ansa-metallocene complexes |
November 17, 2009 |
| The invention relates to a process for preparing hydrogenated or partially hydrogenated, racemic ansa-metallocene complexes by reacting bridged or unbridged transition metal complexes with alkali metal compounds or alkaline earth metal compounds, heating the resulting reaction mixture to |
| 7619090 |
Monocyclopentadienyl complexes comprising a condensed heterocycle |
November 17, 2009 |
| Monocyclopentadienyl complexes containing a cyclopentadienyl system comprising at least one fused heterocycle and at least one uncharged donor which can be used in catalyst systems for the polymerization or copolymerization of olefins. |
| 7619051 |
Butene-1/ethylene copolymer |
November 17, 2009 |
| A 1-butene/ethylene copolymer having a content of ethylene derived units from 0.1% to 5% by weight in which an ethylene content in the polymer (C.sub.2) and a melting point of the polymer (Tm) meet the following relation: Tm<-0.3283C.sub.2.sup.3+4.7184C.sub.2.sup.2-22.454C.sub.2+11- |
| 7618912 |
Preparation of supported catalyst systems |
November 17, 2009 |
| The present invention relates to a process for preparing a catalyst solid for olefin polymerization which is obtainable by bringing A) at least one organic transition metal compound, B) at least one organometallic compound, C) at least one organic compound having at least one functional |
| 7615597 |
Process for the copolymerization of ethylene |
November 10, 2009 |
| A process for producing a polymer of ethylene containing from 0.1 to 99% by mol of one or more derived units of alpha-olefins and optionally from 0 to 5% by mol polyene, comprising contacting ethylene, one or more alpha-olefins and optionally said polyene, in the presence of a catalyst |
| 7598201 |
Process for preparing a support for olefin polymerization catalysts |
October 6, 2009 |
| The invention relates to a process for preparing an essentially spherical support for olefin polymerization catalysts, which comprises the steps: preparation of a hydrogel comprising a cogel of silicon oxide and at least one further metal oxide, if appropriate, washing of the hydrogel |
| 7589223 |
Polymerization catalysts, preparation of polyolefins, organotransition metal compounds and ligan |
September 15, 2009 |
| The invention relates to non-metallocene catalyst systems useful for preparing olefin homopolymers or copolymers. The catalyst systems comprise a cocatalyst and a Group 3-10 transition metal compound that incorporates a diimine ligand in which sp.sup.2-hybridized carbons of the imine |
| 7589160 |
Process for preparing 1-butene polymers |
September 15, 2009 |
| A process for obtaining 1-butene polymers comprising the step of contacting under polymerization conditions 1-butene and optionally ethylene, propylene or said alpha-olefin, in the presence of a catalyst system obtainable by contacting: a) a metallocene compound of formula (I): ##STR |
| 7582723 |
Process and apparatus for the polymerization of ethylene |
September 1, 2009 |
| Process for the polymerization of ethylene or of ethylene with further 1-olefins, in which the ethylene is polymerized in the presence of a catalyst in a gas-phase reactor and reaction gas comprising propane and unpolymerized ethylene is circulated to remove the heat of polymerizatio |
| 7579423 |
Process for polymerizing 1-butene |
August 25, 2009 |
| A process for polymerizing 1-butene, optionally with up to 30% by mol of ethylene, propylene or an alpha olefin of formula CH.sub.2.dbd.CHT wherein T is a C.sub.3-C.sub.10, alkyl group, in the presence of a catalyst system obtainable by contacting a metallocene compound of formula (I |
| 7579417 |
Metallocene compounds |
August 25, 2009 |
| A metallocene compound of formula (I) wherein: M is an atom of a transition metal; X, same or different, is a hydrogen atom, a halogen atom, or a R, OR, OSO.sub.2CF.sub.3, OCOR, SR, NR.sub.2 or PR.sub.2 group, wherein R is C.sub.1-C.sub.40 hydrocarbon group; L is a divalent bridging |
| 7579416 |
Catalyst system for olefin polymerization |
August 25, 2009 |
| The present invention relates to a catalyst system for olefin polymerization comprising an organic transition metal compound and, as cocatalyst, an ionic compound made up of anions of the formula (Ia), [Al(OR.sup.1).sub.4].sup.- (Ia) where the radicals R.sup.1 are identical or diffe |
| 7569648 |
Process for the copolymerization of ethylene |
August 4, 2009 |
| A process for producing a polymer of ethylene containing from 0.1 to 50% by weight of one or more derived units of alpha-olefins fo formula CH.sub.2.dbd.CHR, wherein R is a C.sub.2-C.sub.20 alkyl radical, comprising contacting, under polymerization conditions, ethylene and one or mor |
| 7569647 |
Process for the copolymerization of ethylene |
August 4, 2009 |
| A process for producing a copolymer of ethylene containing from 0.1 to 99% by mol of one or more derived units of alpha-olefins of formula CH.sub.2.dbd.CHA, wherein A is a C.sub.2-C.sub.20 alkyl radical, comprising contacting, under polymerization conditions, ethylene and one or more |
| 7556489 |
Guiding of a cut-open parison |
July 7, 2009 |
| The invention relates to a device for partitioning the plastic parisons to give at least one semifinished open-surface product (6), where the device encompasses at least one means of partitioning (3) the plastic parison and one means of drive (2). The means of drive may be composed of on |
| 7553916 |
Loop reactor with varying diameter for olefin polymerization |
June 30, 2009 |
| Process for polymerizing at least one olefinic monomer in a loop reactor at from 20 to 150.degree. C., but below the melting point of the polymer to be formed, and a pressure of from 5 to 100 bar, where the polymer formed is present in a suspension in a liquid or supercritical suspension |
| 7544826 |
Monocyclopentadienyl complexes |
June 9, 2009 |
| 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 |
| 7544825 |
Preparation of siloxy-bridged metallocenes |
June 9, 2009 |
| A method for making siloxy-bridged ligand precursors and metallocene complexes is disclosed. Indanone enolates react with cyclopentadienylsilyl compounds to produce ligand precursors, which are reacted with a Group 3-10 transition metal source to generate metallocene complexes. The m |
| 7544749 |
Polymerization catalysts, organic transition metal compounds, process for preparing polyolefins |
June 9, 2009 |
| A catalyst system obtained by reacting at least one chiral transition metal compound and at least one cocatalyst, where the chiral transition metal compound is a transition metal compound of formula (Ia) or one of its enantiomers of the formula (Ia*), ##STR00001## where M is an element |
| 7541473 |
Monocyclopentadienyl complexes |
June 2, 2009 |
| Monocyclopentadienyl complexes in which the cyclopentadienyl system bears at least one unsubstituted, substituted or fused, heteroaromatic ring system bound via a specific bridge, a catalyst system comprising at least one of the monocyclopentadienyl complexes, the use of the catalyst sys |
| 7538174 |
Isotactic 1-butene copolymers |
May 26, 2009 |
| An isotactic 1-butene copolymer having a content up to 30% by mol of at least one alpha-olefin of formula CH.sub.2.dbd.CHZ derived units, wherein Z is a C.sub.3-C.sub.20 hydrocarbon group, having the following features: isotactic pentads (mmmm) >90%; and a percentage of soluble frac |
| 7534848 |
1-butene copolymers and process for preparing them |
May 19, 2009 |
| A process comprising contacting 1-butene and one or more alpha-olefins under polymerization conditions in the presence of a catalyst system obtainable by contacting: (A) a metallocene compound of formula (I) ##STR00001## wherein: M is an atom of a transition metal; p is an integer f |
| 7534847 |
Copolymers of ethylene with .alpha.-olefins |
May 19, 2009 |
| Copolymers of ethylene with .alpha.-olefins which have a molar mass distribution M.sub.w/M.sub.n of from 1 to 8, a density of from 0.85 to 0.94 g/cm.sup.3, a molar mass M.sub.n of from 10.000 g/mol to 4 000 000 g/mol and a CDBI of less than 50% and in which the side chain branching o |
| 7534841 |
1-butene polymer and process for the preparation thereof |
May 19, 2009 |
| A 1-butene polymer optionally containing from 0 to 30% by mol of derived units of ethylene, propylene or alpha-olefin of formula CH2.dbd.CHZ, wherein Z is a C.sub.3-C.sub.20 linear or branched alkyl radical, having the following features: a) distribution of molecular weight (Mw/Mn) |
| 7534341 |
Discontinuous metering of catalysts and process auxilliaries into a gas-phase fluidized-bed reac |
May 19, 2009 |
| Method of metering at least one solid, particulate catalyst into a reactor containing a fluidized bed (11) of particles in an at least partly gaseous medium, in which the catalyst is metered discontinuously at prescribed time intervals into the fluidized bed (11) at at least one mete |
| 7531672 |
Preparation of heterocyclic ketones |
May 12, 2009 |
| The present invention relates to a process for preparing heterocyclic ketones of the formulae (I) and (la), by reacting a heterocyclic compound of the formula (II), with an .alpha., .beta.-unsaturated carboxylic acid of the formula (III), or with its anhydride of the formula (IV), where |
| 7527175 |
Metering of catalysts |
May 5, 2009 |
| To meter catalysts into a reactor, the catalyst is firstly suspended in a hydrocarbon in a reservoir and the suspension obtained is kept in motion by stirring and then fed via a three-way metering valve and an ejector into the actual reactor, wherein the suspension containing the catalys |
| 7517938 |
Loop reactor with varying diameter for olefin polymerization |
April 14, 2009 |
| Process for polymerizing at least one olefinic monomer selected from ethylene, propylene and 1-butene in a loop reactor in the presence of a polymerization catalyst at from 20 to 150.degree. C., but below the melting point of a polymer to be formed, and a pressure of from 43 to 80 ba |
| 7507782 |
Transition-metal complexes with tridentate, nitrogen-containing ligands |
March 24, 2009 |
| Transition metal complexes with tridentate, nitrogen-containing, uncharged ligand systems, a catalyst system comprising at least one of the transition metal complexes, the use of the catalyst system for the polymerization or copolymerization of olefins and a process for preparing pol |
| 7507688 |
Monocyclopentadienyl complexes |
March 24, 2009 |
| Monocyclopentadienyl complexes in which the cyclopentadienyl system bears at least one unsubstituted, substituted or fused, 5-membered heteroaromatic ring system bound via a specific bridge, a catalyst system comprising at least one of the monocyclopentadienyl complexes, the use of t |
| 7504354 |
Organometallic transition metal compound, biscyclopentadienyl ligand system, catalyst system and |
March 17, 2009 |
| The present invention relates to organometallic transition metal compounds of the formula (I), a catalyst composition comprising at least one of the organometallic transition metal compound and an olefin polymerization process in the presence of one of the catalyst composition. ##STR0000 |
| 7485685 |
Plastics pipes of polyolefins |
February 3, 2009 |
| Plastics pipes comprise polyolefins which can be prepared by means of a fluorine-modified chromium catalyst and are used for transporting gases and liquids. |
| 7476717 |
Butene-1 homopolymer |
January 13, 2009 |
| A 1-butene homopolymer having the following characteristics: intrinsic viscosity (I.V.)>0.7 dL/g isotactic triads (mm)>70%; 4,1 insertions<1%; a flexural modulus (ASTM D 638)>400 Mpa; melting point>105.degree. C. |
| 7470460 |
Layered composite materials |
December 30, 2008 |
| Layered composite materials which comprises a substrate made from a thermoplastic polymer, and comprise an intermediate layer arranged thereupon and a decorative layer applied to the intermediate layer, where the decorative layer is composed of a chromed metal. A heat-cured layer may |
| 7468451 |
Process for the production of halide metallocene compounds |
December 23, 2008 |
| Process for preparing halide metallocene compounds comprising the step of reacting the dialkyl derivative with a halogenating agent of formula R.sup.3.sub.xTL.sub.w wherein: L is chlorine, iodine or bromine; R.sup.3 is hydrogen or a hydrocarbon group; T is a metal of groups 2-14 of the |
| 7468279 |
Selection of polymerization catalysts and apparatus for carrying this out |
December 23, 2008 |
| In a method of selecting polymerization catalysts, in particular Phillips catalysts for the polymerization of olefins, from a multiplicity of catalysts on the basis of their catalytic properties, a multiplicity of catalyst precursors or catalyst supports are converted in parallel into |
| 7465818 |
Process for the racemoselective synthesis of ansa-metallocenes |
December 16, 2008 |
| A process for the racemoselective preparation of ansa-metallocene complexes of the formula (I), ##STR00001## where R.sup.1, R.sup.1', R.sup.2, R.sup.2' are identical or different and are each hydrogen or an organic radical having from 1 to 40 carbon atoms, R.sup.3, R.sup.3' are iden |
| 7465688 |
Process for the isomerization of metallocene compounds |
December 16, 2008 |
| An isomerization process comprising the step of contacting a slurry or a solution comprising the meso or meso-like form of one or more bridged metallocene compounds of group 4 of the Periodic Table of the Elements having C.sub.2 or C.sub.2-like symmetry with an isomerization catalyst of |
| 7459511 |
Process for the polymerization of 1-butene |
December 2, 2008 |
| A process for polymerizing 1-butene comprising the step of contacting under polymerization conditions 1-butene and optionally from 0 to 20% by mol of an alpha olefin with a catalyst system obtainable by contacting a bridget metallocene compound of formula (I) wherein R1 and R2 are an |
| 7452949 |
Organometallic transition metal compound, biscyclopentadienyl ligand system, catalyst system and |
November 18, 2008 |
| The present invention relates to organometallic transition metal compounds of the formula (I) ##STR00001## |
| 7446072 |
Preparation of supported catalyst systems containing reduced amounts of aluminoxanes |
November 4, 2008 |
| The present invention relates to a process for preparing a catalyst solid for olefin polymerization, comprising a finely divided support, an aluminoxane and a metallocene compound, which comprises a) firstly combining the finely divided support with the aluminoxane and subsequently |
| 7427649 |
Polyethylene blow molding composition for producing small containers |
September 23, 2008 |
| The invention relates to a polyethylene composition with multi-modal molecular mass distribution, which is particularly suitable for blow molding of small containers with a volume in the range of from 200 to 5000 cm.sup.3 (=ml). The composition has a density in the range of from 0.95 |
| 7417006 |
Catalyst system for the polymerization of olefins |
August 26, 2008 |
| A salt of formula (I) [HE.sup.oR.sup.1.sub.3].sup.+[T.sup.1T.sup.2].sup.- (I) wherein E.sup.o is a nitrogen or phosphorous atom; R.sup.1 is hydrocarbon radical; T.sup.1 is a Lewis acid that forms a complex with T.sup.2, and T.sup.2 is a substituted pyrrolyl radical of formula (III) |
| 7414005 |
Preparation of catalyst compositions having improved activity |
August 19, 2008 |
| The present invention relates to a process for preparing a catalyst composition for olefin polymerization, which comprises preparing a catalyst solid in a first step by bringing A) at least one support, B) at least one organic compound having at least one functional group containing |
| 7407591 |
Process for the reduction of activated chromium oxide catalyst |
August 5, 2008 |
| Process for the reduction of a hexavalent chromium oxide based catalyst comprising contacting, under mixing conditions, a hexavalent chromium oxide based catalyst, with a molar excess, in respect of the chromium species, of a solid reducing agent and subjecting the mixture to a tempe |
| 7405261 |
Organometallic transition metal compound, biscyclopentadienyl ligand system, catalyst system and |
July 29, 2008 |
| The present invention relates to compounds of the formula (I): ##STR00001## where M.sup.1 is an element of group 3, 4, 5 or 6 of the Periodic Table, X are halogen, hydrogen, C.sub.1-C.sub.20-alkyl, C.sub.2-C.sub.20-alkenyl, C.sub.6-C.sub.22-aryl, alkylaryl or arylalkyl, n is a nat |
| 7390862 |
Process for polymerizing 1-butene |
June 24, 2008 |
| A process for polymerizing 1-butene, optionally with up to 30% by mol of ethylene, propylene or an alpha olefin of formula CH.sub.2.dbd.CHT wherein T is a C.sub.3-C.sub.10 alkyl group, in the presence of a catalyst system obtainable by contacting a metallocene compound of formula (I) |
| 7365137 |
Multistep process for the (co) polymerization of olefins |
April 29, 2008 |
| A multistep process for the polymerization of one or more olefins comprising a first step of polymerizing one or more of said olefins in the presence of a catalyst of the Ziegler-Natta type, a step wherein the polymer obtained in the first step is contacted with a catalyst system com |
| 7358381 |
Racemoselective preparation of bridged metallocene complexes having unsubstituted or 2-substitut |
April 15, 2008 |
| The invention relates to a process for preparing racemic metallocene complexes by reacting transition metal complexes with cyclopentadienyl derivatives of alkali metals or alkaline earth metals and heating the reaction mixture obtained in this way to a temperature in the range from - |
| 7348384 |
Supported, titanized chromium catalyst and its use for preparing homopolymers and copolymers of |
March 25, 2008 |
| Novel supported, titanized chromium catalysts for the homopolymerization of ethylene and the copolymerization of ethylene with .alpha.-olefins, a process for preparing them and to their use for the polymerization of olefins. |
