| Entries |
| Document | Title | Date |
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| 20080200625 | Polymerisation Catalyst - A polymerisation catalyst comprising (1) a transition metal compound of Formula (A), and optionally (2) an activator, wherein Z is 5-membered heterocyclic containing carbon, nitrogen and at least one other selected from nitrogen, sulphur and oxygen, the remaining atoms in the ring being nitrogen and carbon; M is a metal from Group 3 to 11 or a lanthanide metal; E | 08-21-2008 |
| 20080242812 | Cycloolefin copolymers, a process for their preparation and the use thereof and catalysts - Cycloolefin copolymers which are distinguished by the presence of racemic diads of repeating polycyclic units and additionally by racemic triads of repeating polycyclic units are described. These copolymers can be prepared by copolymerization of polycyclic olefins with linear olefins in the presence of metallocene catalysts which have no C | 10-02-2008 |
| 20080255329 | High Activity, Low Molecular Weight Olefin Polymerization Process - Group 4 metal complexes comprising a polyvalent, heteroaryl donor ligand and their use as components of olefin polymerization catalysts, especially suited for preparing propylene/ethylene copolymer products having high isotacticity and low molecular weight, are disclosed. | 10-16-2008 |
| 20080262175 | Catalyst Composition Comprising Shuttling Agent for Regio-Irregular Multi-Block Copolymer Formation - Copolymers, especially multi-block copolymer containing therein two or more segments or blocks, are prepared by polymerizing propylene, 4-methyl-1-pentene, or another C | 10-23-2008 |
| 20080269443 | Methods of oligomerizing olefins - The present invention provides a method of producing oligomers of olefins, comprising reacting olefins with a catalyst under oligomerization conditions. The catalyst can be the product of the combination of a chromium compound and a heteroaryl-amine compound. In particular embodiments, the catalyst compound can be used to trimerize or tetramerize ethylene to 1-hexene, 1-octene, or mixtures of 1-hexene and 1-octene. | 10-30-2008 |
| 20080275200 | Production Of Olefin Polymerization Catalysts - The invention provides a process for producing an olefin polymerisation catalyst, comprising an organometallic compound of a transition metal or of an actinide or lanthanide, in the form of solid catalyst particles, comprising forming a liquid/liquid emulsion system which comprises a solution of one or more catalyst components dispersed in a solvent immiscible therewith; and solidifying said dispersed phase to convert said droplets to solid particles comprising the catalyst and optionally recovering said particles. | 11-06-2008 |
| 20080287620 | Ethylene elastomer compositions - In a process for producing an elastomer composition, ethylene, at least one alpha-olefin, and at least one diene is contacted with a catalyst system comprising at least one metallocene catalyst compound and a non-coordinating anion activator. The at least one metallocene catalyst compound comprises an indenyl complex having the general formula: (In | 11-20-2008 |
| 20080293899 | Methods For Oligomerizing Olefins - The present invention provides a method of producing oligomers of olefins, comprising reacting olefins with a catalyst under oligomerization conditions. The catalyst can be the product of the combination of a chromium compound and a pyridyl amine or a heteroaryl-amine compound. In particular embodiments, the catalyst compound can be used to trimerize or tetramerize ethylene to 1-hexene, 1-octene, or mixtures of 1-hexene and 1-octene. | 11-27-2008 |
| 20080306229 | Transition Metal-Catalyzed Synthesis of Dendritic Polymers - Dendritic amphiphilic polymers are contemplated. Most preferably, such polymers will be fabricated in a single step to the final product that may further be derivatized with, among others, biological relevant molecules. In alternative aspects, precursors of such molecules are prepared in a single step, and the precursors are then reacted to the dendritic amphiphilic polymers. | 12-11-2008 |
| 20090018292 | Monocyclopentadienyl Complexes - Monocyclopentadienyl complexes in which the cyclopentadienyl system bears at least one bridged keto, thioketo, imino or phosphino group, a catalyst system comprising at least one of the monocyclopentadienyl complexes and a process for preparing polyolefins by polymerization or copolymerization of olefins in the presence of the catalyst system. | 01-15-2009 |
| 20090018293 | Process for the preparation of a metaloorganic compound comprising at least one imine ligand - The invention relates to a process for the preparation of a metalorganic compound, comprising at least one imine ligand, characterized in that an imine ligand according to formula 1, or the HA adduct thereof, wherein HA represents an acid, of which H represents its proton and A its conjugate base, is contacted with a metal-organic reagent of formula 2 in the presence of at least 1, respectively 2 equivalents of an inorganic or metal-organic base, wherein Y═N—R (formula 1), Y is selected from a substituted carbon, nitrogen or phosphorous atom, R represents a proton, a protic or an aprotic substituent, and the metal organic compound is: M | 01-15-2009 |
| 20090030167 | POLYMERIZATION CATALYST COMPOSITION FOR POLYMERIZATION OF ISOPRENE COMPOUND - 3,4-isoprene-based polymer having high isotacticity can be produced by polymerizing an isoprene compound using a complex represented by the general formula (A) and a catalyst activator:
| 01-29-2009 |
| 20090069518 | Process for the polymerization of 1-butene - 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 R | 03-12-2009 |
| 20090111956 | HAFNIUM COMPLEXES OF HETEROCYCLIC ORGANIC LIGANDS - Hafnium complexes of heterocyclic organic ligands containing internal orthometallation and their use as components of olefin polymerization catalysts, especially for gas-phase olefin polymerizations, are disclosed. | 04-30-2009 |
| 20090118449 | PROCESS FOR THE PREPARATION OF ETHYLENE COPOLYMERS - A polymerization process comprising contacting under polymerization conditions ethylene and at least one alpha olefin of formula CH2=CHA wherein A is a C | 05-07-2009 |
| 20090124772 | PROCESS FOR PRODUCING ORGANIC TRANSITION METAL COMPLEX COMPOUND, METATHESIS CATALYST PRODUCED BY USING THE SAME, RING-OPENING METATHESIS POLYMER OBTAINABLE WITH THE METATHESIS CATALYST, AND PROCESS FOR PRODUCING THE POLYMER - A process for synthesizing an organic transition metal complex compound with an atom group having an electron-donor ability, in an industrially and economically advantageous manner, without a compound having a proton-donor ability being a metal salt, and a metathesis catalyst produced with the use of the above process, are provided. A process for producing an organic transition metal complex compound in which an atom group having an electron-withdrawing ability can be converted into an atom group having a stronger electron-donor ability, by contacting an compound having a proton-donor ability with the organic transition metal complex compound with an atom group having an electron-withdrawing ability, in the presence of an basic compound, and a metathesis catalyst of which the content of an alkali metal is reduced, and which is obtainable with the use of the above process, are provided. | 05-14-2009 |
| 20090156764 | Ethylene-Based Polymers and Articles Made Therefrom - Provided are ethylene-based polymer compositions, articles made therefrom, and methods of making the same. Ethylene-based polymer compositions include linear low density polyethylene prepared with metallocene catalyst, which may optionally have about 5 mole percent or less of monomer units derived from an alpha-olefin comonomer. Ethylene-based polymer compositions include blends of linear low density polyethylene and one or more very low density polyethylene compositions, one or more low density polyethylene compositions, one or more medium density polyethylene compositions, one or more high density polyethylene compositions, one or more differentiated polyethylene compositions, or other conventional polymers. Articles composed of such ethylene-based polymer compositions are prepared according to a process window, e.g., at a specific extrusion rates, which provides favorable physical properties, including tear resistance and dart drop properties. Films prepared according to these techniques exhibit physical properties equivalent to, or superior than, conventional linear low density polyethylenes prepared with Ziegler-Natta catalyst. | 06-18-2009 |
| 20090186996 | HAFNIUM COMPLEXES OF CARBAZOLYL SUBSTITUTED IMIDAZOLE LIGANDS - Hafnium complexes of carbazolyl substituted imidazol ligands and their use as components of olefin polymerization catalyst compositions are disclosed. | 07-23-2009 |
| 20090215973 | PROPYLENE POLYMER AND COMPOSITION CONTAINING THE SAME, MOLDED OBJECT AND LAMINATE COMPRISING THESE, AND PROCESSES FOR PRODUCING PROPYLENE POLYMER AND COMPOSITION CONTAINING THE SAME - A propylenic polymer according to the present invention or a composition thereof have an excellent melt flowability and contains a less amount of stickiness-causing components, and also has a low modulus and is pliable, and is capable of providing a transparent molded article, thus being useful as a substitute for a pliable vinyl chloride resin. In addition, a molded article made therefrom exhibits an excellent heat seal performance at a low temperature, and is excellent in terms of transparency and rigidity. Specifically, it has an isotactic pentad fraction (mmmm), which indicates a stereoregularity, of 30 to 80%, a molecular weight distribution (Mw/Mn) of 3.5 or less and an intrinsic viscosity [η] of 0.8 to 5 dl/g. | 08-27-2009 |
| 20090306318 | ORTHO-METALLATED HAFNIUM COMPLEXES OF IMIDAZOLE LIGANDS - Hafnium complexes of heterocyclic organic imidazol-2-yl ligands containing internal orthometallation and their use as components of olefin polymerization catalyst compositions, especially supported catalyst compositions, are disclosed. | 12-10-2009 |
| 20090312509 | POLYPROPYLENE SOLUTION POLYMERIZATION PROCESS - A process for polymerization of propylene, optionally ethylene, and further optionally one or more C | 12-17-2009 |
| 20090318644 | High Vinyl Terminated Propylene Based Oligomers - This invention relates to a co-oligomer having an Mn of 300 to 30,000 g/mol comprising 10 to 90 mol % propylene and 10 to 90 mol % of ethylene, wherein the oligomer has at least X % allyl chain ends, where: 1) X=(−0.94 (mole % ethylene incorporated)+100), when 10 to 60 mole % ethylene is present in the co-oligomer, and 2) X=45, when greater than 60 and less than 70 mole % ethylene is present in the co-oligomer, and 3) X=(1.83*(mole % ethylene incorporated)−83), when 70 to 90 mole % ethylene is present in the co-oligomer. This invention also relates to a homo-oligomer, comprising propylene, wherein the oligomer has: at least 93% allyl chain ends, an Mn of about 500 to about 20,000 g/mol, an isobutyl chain end to allylic vinyl group ratio of 0.8:1 to 1.2:1.0, and less than 100 ppm aluminum. This invention also relates to a process of making homo-oligomer, comprising propylene, wherein the productivity is greater than 4500 g/mmol Hf (or Zr)/hour. | 12-24-2009 |
| 20090318645 | METHOD FOR THE PRODUCTION OF OXETANE GROUP-CONTAINING (METH)ACRYLATES - The invention relates to a process for preparing oxetane-containing (meth)acrylates. | 12-24-2009 |
| 20090318646 | Functionalized High Vinyl Terminated Propylene Based Oligomers - This invention relates to a functionalized co-oligomer having an Mn of 300 to 30,000 g/mol comprising 10 to 90 mol % propylene and 10 to 90 mol % of ethylene, wherein the oligomer has at least X % allyl chain ends, where: 1) X=(−0.94(mole % ethylene incorporated)+100), when 10 to 60 mole % ethylene is present in the co-oligomer, and 2) X=45, when greater than 60 and less than 70 mole % ethylene is present in the co-oligomer, and 3) X=(1.83*(mole % ethylene incorporated)−83), when 70 to 90 mole % ethylene is present in the co-oligomer. This invention also relates to a functionalized homo-oligomer, comprising propylene, wherein the oligomer has: at least 93% allyl chain ends, an Mn of about 500 to about 20,000 g/mol, an isobutyl chain end to allylic vinyl group ratio of 0.8:1 to 1.2:1.0, and less than 100 ppm aluminum. This invention also relates to a process of making functionalized homo-or co-oligomer, comprising propylene, wherein the productivity is greater than 4500 g/mmol Hf (or Zr)/hour. | 12-24-2009 |
| 20090326175 | ARYLPHENOXY CATALYST SYSTEM FOR PRODUCING ETHYLENE HOMOPOLYMER OR COPOLYMERS OF ETHYLENE AND a-OLEFINS - The present invention relates to an arylphenoxy catalyst system producing an ethylene homopolymer or copolymers of ethylene and α-olefins, and a method of producing an ethylene homopolymer or copolymers of ethylene and α-olefins having a high molecular weight under a high temperature solution polymerization condition using the same. The catalyst system includes a group IV arylphenoxy-based transition metal catalyst and an aluminoxane cocatalyst or a boron compound cocatalyst. In the transition metal catalyst, a cyclopentadiene derivative and arylphenoxide as fixed ligands are located around the group IV transition metal, arylphenoxide is substituted with at least one aryl derivative and is located at the ortho position thereof, and the ligands are not crosslinked to each other. The catalyst includes an environmentally-friendly raw material, synthesis of the catalyst is economical, and thermal stability of the catalyst is excellent. It is useful for producing an ethylene homopolymer or copolymers of ethylene and α-olefins having various physical properties in commercial polymerization processes. | 12-31-2009 |
| 20100016528 | Ethylene and alpha-olefins polymerisation catalyst system based on fluorenyl ligand - The present invention discloses a catalyst system comprising a cyclopentadienyl-£luorenyl-based catalyst component wherein the cyclopentadienyl is di-substituted and the fluorenyl is monosubstituted. It also discloses its method of preparation and its use in the polymerisation of ethylene. | 01-21-2010 |
| 20100036070 | PROCESS FOR PRODUCING OLEFIN POLYMER (1) - The purpose of the present invention is to provide a process for producing an olefin polymer, which can produce an olefin polymer having a higher molecular weight by lowering hydrogen concentration efficiently in polymerizing an olefin in the presence of hydrogen by use of a gas phase reaction vessel. There is provided a process for producing an olefin polymer comprising the steps of: using a gas phase reaction vessel; polymerizing an olefin by use of a catalyst for olefin polymerization in the presence of hydrogen; and adding a hydrogenation catalyst to a bed portion in the gas phase reaction vessel. | 02-11-2010 |
| 20100048841 | PHENOL-HETEROCYCLIC LIGANDS, METAL COMPLEXES, AND THEIR USES AS CATALYSTS - Ligands, compositions, and metal-ligand complexes that incorporate phenol-heterocyclic compounds are disclosed that are useful in the catalysis of transformations such as the polymerization of monomers into polymers. The catalysts have high performance characteristics, including high comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts particularly polymerize styrene to form polystyrene. | 02-25-2010 |
| 20100048842 | METAL-LIGAND COMPLEXES AND CATALYSTS - The present invention generally relates to metal-ligand complexes, catalysts comprising or prepared from the metal-ligand complexes, processes of catalyzing olefin polymerization reactions with the catalysts to prepare polyolefins, polyolefins prepared thereby, processes of making the metal-ligand complexes and catalysts, and intermediate compounds useful therefor. | 02-25-2010 |
| 20100069589 | PRODUCTION OF POLYPROPYLENE FROM RENEWABLE RESOURCES - Processes for forming low molecular weight (C | 03-18-2010 |
| 20100087609 | ETHYLENE ALPHA-OLEFIN COPOYMER - The present invention relates to an ethylene α-olefin copolymer having a narrower molecular weight distribution, and a uniform distribution of comonomer. The ethylene α-olefin copolymer according to the present invention has a uniform comonomer distribution and exhibits a lower density in the same comonomer content, unlike conventional ethylene copolymers having a random or blocky comonomer distribution. | 04-08-2010 |
| 20100093959 | SUPPORTED CATALYST FOR OLEFIN POLLYMERIZATION USING TRANSITION METAL COMPOUND HAVING THENYLENE-BRIDGE, METHOD FOR PREPARING THE SAME, AND METHOD FOR PREPARING POLYOLEFINGUSINGTHED SAME - The present invention provides a new supported catalyst for olefin polymerization prepared by reacting a novel transition metal compound on a cocatalyst-supported support, in which the transition metal compound is coordinated with a monocyclopentadienyl ligand to which an amido-quinoline group is introduced, a method for preparing the same, and a method for preparing a polyolefin using the same. The transition metal catalyst compound used in the present invention is configured such that an amido group is linked in a cyclic form via a phenylene bridge. Thus, a pentagon ring structure of the transition metal compound is stably maintained, so that monomers easily approach the transition metal compound and the reactivity is also high. Accordingly, if the supported catalyst for olefin polymerization prepared according to the present invention is applied to the copolymerization of ethylene and monomers having large steric hindrance in a slurry or a gas phase process, a linear, a linear, high molecular weight polyolefin having a very low density of 0.900 to 0.970 g/cc or less can be obtained. | 04-15-2010 |
| 20100105851 | ELASTOMERIC COMPOUND - The invention relates to an elastomeric compound comprising at least one olefinic elastomer comprising ethylene, an α-olefin, from 1 to 7 wt % vinyl norbornene and from 0 to 15 wt % of a second non-conjugated polyene, wherein the wt % are related to the total weight of ethylene, α-olefin, vinyl norbornene and the second non-conjugated polyene, and which elastomer has long chain branching corresponding with Δδ<20, wherein Δδ, expressed in degrees, is calculated from the difference between the phase angle δ between stress and strain in a dynamic shear measurement at 125° C. at a frequency of 0.1 rads and the phase angle δ at a frequency of 100 rad/s and the compound further comprising a solid tiller and an oil, such that the compound has a compound loading between 120 and 300 phr, wherein said olefinic elastomer satisfies the following relation S | 04-29-2010 |
| 20100113721 | 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. | 05-06-2010 |
| 20100152397 | COMPOSITE CATALYST FOR PRODUCTION OF POLYETHYLENE - A composite catalyst useful in the production of polyethylene, which comprises at least a first catalyst and a second catalyst separated by a polymer layer, with the first catalyst and the second catalyst being identical or different, is described. A composite catalyst useful in the production of polyethylene with a broad molecular weight distribution in a single polymerization reactor, which comprises at least a first catalyst and a second catalyst separated by a polymer layer, with the first catalyst and the second catalyst being different, is also described. A process for preparing said catalysts and a process for the production of a polyethylene by using said catalysts are also described. | 06-17-2010 |
| 20100168351 | CATALYST COMPLEX AND PROCESS FOR PRODUCING MULTIMODAL MOLECULAR WEIGHT POLYOLEFINS - Multinuclear catalyst complex comprising two or more active metal centres and at least one phenoxyimine compound and at least one substituted cyclopentadienyl, indenyl or fluorenyl derivative, each phenoxyimine compound being bonded to a cyclopentadienyl, indenyl or fluorenyl derivative forming a ligand framework, the cyclopentadienyl, indenyl or fluorenyl derivative being coordinated with one of the metal centres and the phenoxyimine compound being coordinated with an active metal centre other than the metal centre the cyclopentadienyl, indenyl or fluorenyl derivative is coordinated with, and wherein the phenoxyimine compound has the formula | 07-01-2010 |
| 20100227990 | CATALYSTS, PROCESSES FOR MAKING CATALYSTS, PROCESSES FOR MAKING POLYOLEFIN COMPOSITIONS, AND POLYOLEFIN COMPOSITIONS - The present invention relates to compositions and processes of making catalysts and polyolefins. More particularly, the invention relates to snap shut catalysts, processes for making the catalysts, processes for making polyolefins using the catalysts and the polyolefins resulting therefrom. | 09-09-2010 |
| 20100234545 | ETHYLENE COPOLYMER HAVING MULTIPLE PITCH MOLECULAR WEIGHT DISTRIBUTION AND THE METHOD OF PREPARING THE SAME - Disclosed are an ethylene polymerization process, a catalyst for use in the process, a production method employing the catalyst, and a product produced thereby. More specifically, disclosed is a process of producing an ethylene copolymer from ethylene and an alpha-olefin comonomer, in which the produced ethylene copolymer has a multimodal molecular weight distribution and excellent processability and physical properties, and thus can increase the value and productivity of products, including pipes and films. Particularly, the produced ethylene copolymer has a trimodal or higher molecular weight distribution or density distribution, and thus, when it is a linear low-density copolymer, it has an excellent effect of improving the impact strength of films, and when it is a medium-density ethylene copolymer, it can be produced into pipes, which have slow crack growth rate and can be used even at high temperature. | 09-16-2010 |
| 20100249347 | METALLOCENE CATALYST COMPONENTS SUPPORTED ON ACTIVATING SUPPORTS - The present invention discloses a catalyst system consisting of a mono- or di-fluorinated metallocene catalyst component of formula and a fluorinated activating support. | 09-30-2010 |
| 20100292424 | Lubricants from Mixed Alpha-Olefin Feeds - This invention discloses an improved process which employs mixed alpha-olefins as feed over activated metallocene catalyst systems to provide essentially random liquid polymers particularly useful in lubricant components or as functional fluids. | 11-18-2010 |
| 20100331505 | DUAL METALLOCENE CATALYST SYSTEMS FOR DECREASING MELT INDEX AND INCREASING POLYMER PRODUCTION RATES - The present invention provides dual catalyst systems and polymerization processes employing these dual catalyst systems. The disclosed polymerization processes can produce olefin polymers at higher production rates, and these olefin polymers may have a higher molecular weight and/or a lower melt index. | 12-30-2010 |
| 20110003953 | Carbon-Bridged Cyclopentadienyl-Fluorenyl Ligands - The present invention discloses efficient methods for preparing substituted cyclopentadienyl-fluorenyl catalyst components having a mono-carbon bridge. | 01-06-2011 |
| 20110003954 | CYCLOBUTENE POLYMERS AND METHODS OF MAKING THE SAME - Described is a cyclobutene polymer comprising: monomeric units of cyclobutene, said cyclobutene having at least one fused ring system substituted thereon, said polymer comprising not more than 10 mol percent ring-opened units of said cyclobutene; and said polymer having a molecular weight of at least 1,000; said polymer optionally copolymerized with a comonomer to form a copolymer therewith. Compositions thereof and methods of making the same are also described. | 01-06-2011 |
| 20110009580 | Novel copolymers - A copolymer of ethylene and an alpha-olefin, said copolymer having a (a) density>0.930 g/cm | 01-13-2011 |
| 20110021727 | Catalysts based on 2-(2-aryloxy)quinoline or 2-(2-aryloxy)dihydroquinoline ligands - Catalysts useful for polymerizing olefins are disclosed. The catalysts comprise an activator and a Group 4 metal complex that incorporates a dianionic, tridentate 2-(2-aryloxy)quinoline or 2-(2-aryloxy)dihydroquinoline ligand. In one aspect, supported catalysts are prepared by first combining a boron compound having Lewis acidity with excess alumoxane to produce an activator mixture, followed by combining the activator mixture with a support and the tridentate, dianionic Group 4 metal complex. The catalysts are easy to synthesize, support, and activate, and they enable facile production of high-molecular-weight polyolefins. | 01-27-2011 |
| 20110065877 | ETHYLENE-PROPYLENE-DIENE COPOLYMER PRODUCTION METHOD - The present invention relates to a method for the production of an ethylene/propylene/diene copolymer by means of solution polymerisation, and more specifically one for a copolymer whose main components are ethylene, propylene and diene monomers using a catalyst of a transition metal coordination compound; the constituent components and characteristics of the copolymer being as follows. The catalyst composition provided by the present invention, which is used to produce a copolymer of which (a) the ethylene content is from 30 wt. % to 80 wt. %, (b) the propylene content is from 19.9% to 60 wt. % and (c) the diene content is from more than 0 wt. % to 15 wt. %, comprises a catalyst system using an activating agent of a compound of aluminium or boron, or aluminoxane together with a transition metal catalyst comprising at least one anionic ligand having an aryloxy group substituted with an aryl derivative in the ortho position and a cyclopentadiene derivative, and provides a highly active polymerisation method with outstanding reactivity with respect to ethylene, propylene and diene compounds. | 03-17-2011 |
| 20110098429 | Catalyst Compounds and Use Thereof - This invention relates to Group 4 catalyst compounds containing di-anionic tridentate nitrogen/oxygen based ligands. The catalyst compounds are useful, with or without activators, to polymerize olefins, particularly a-olefins, or other unsaturated monomers. Systems and processes to oligomerize and/or polymerize one or more unsaturated monomers using the catalyst compound, as well as the oligomers and/or polymers produced therefrom are also provided. | 04-28-2011 |
| 20110098430 | Catalyst Compounds and Use Thereof - This invention relates to Group 4 catalyst compounds containing di-anionic tridentate nitrogen/oxygen based ligands. The catalyst compounds are useful, with or without activators, to polymerize olefins, particularly α-olefins, or other unsaturated monomers. Systems and processes to oligomerize and/or polymerize one or more unsaturated monomers using the catalyst compound, as well as the oligomers and/or polymers produced therefrom are also provided. | 04-28-2011 |
| 20110098431 | Catalyst Compounds and Use Thereof - This invention relates to Group 4 dialkyl compounds supported by a pyridyl-amido-aryl (“PAA”), an anisole-amido-aryl (“AAA”), a phenoxy-amido-pyridyl (“PAPY”), an anisole-amido-phenoxy (“AAP”) or a anisole-amido-phenoxy (“AAP”) tridentate ligand. Such compounds can polymerize olefins, such as ethylene. | 04-28-2011 |
| 20110130533 | PROCESS TO MAKE LONG CHAIN BRANCHED (LCB), BLOCK, OR INTERCONNECTED COPOLYMERS OF ETHYLENE - A process is taught, comprising polymerizing ethylene in the presence of a catalyst to form a crystalline ethylene-based polymer having a crystallinity of at least 50% as determined by DSC Crystallinity in a first reactor or a first part of a multi-part reactor and reacting the crystalline ethylene-based polymer with additional ethylene in the presence of a free-radical initiator to form an ethylenic polymer in at least one other reactor or a later part of a multi-part reactor. | 06-02-2011 |
| 20110207903 | PROCESS FOR POLYMERIZING AN OLEFIN MONOMER AND CATALYST THEREFOR - The present invention generally relates to a process that polymerizes an olefin monomer, and a precatalyst and catalyst useful in such process. | 08-25-2011 |
| 20110282018 | PROCESS FOR SELECTIVELY POLYMERIZING ETHYLENE AND CATALYST THEREFOR - The present invention generally relates to a process that selectively polymerizes ethylene in the presence of an alpha-olefin, and to a metal-ligand complex (precatalyst) and catalyst useful in such processes, and to related compositions. The present invention also generally relates to ligands and intermediates useful for preparing the metal-ligand complex and to processes of their preparation. | 11-17-2011 |
| 20110301309 | PROPYLENE HOMOPOLYMER FOR CAPACITORS - [Object] To provide a propylene homopolymer suitable for capacitor films having high withstand voltage and a stretched film formed by stretching the propylene homopolymer. | 12-08-2011 |
| 20110319578 | TRANSITION METAL COMPOUND AND CATALYST FOR OLEFIN POLYMERIZATION - A transition metal compound represented by the formula (1-1) or the formula (1-2) (M is a transition metal atom) and a process for producing a catalyst for olefin polymerization comprising a step of bringing the transition metal compound into contact with a co-catalytic component for activation. | 12-29-2011 |
| 20120016092 | Catalysts based on quinoline precursors - Catalysts useful for polymerizing olefins are disclosed. The catalysts comprise a transition metal complex, an optional activator, and an optional support. The complex is the reaction product of a Group 3-6 transition metal source, an optional alkylating agent, and a ligand precursor comprising a 2-imino-8-anilinoquinoline or a 2-aminoalkyl-8-anilinoquinoline. The catalysts, which are easy to synthesize by in-situ metallation of the ligand precursor, offer polyolefin manufacturers good activity and the ability to make high-molecular-weight ethylene copolymers that have little or no long-chain branching. | 01-19-2012 |
| 20120071616 | Pyridyldiamido Transition Metal Complexes, Production And Use Thereof - Pyridyldiamido transition metal complexes are disclosed for use in alkene polymerization. | 03-22-2012 |
| 20120095175 | PREPARATION AND USE OF TETRASUBSTITUTED FLUORENYL CATALYSTS FOR POLYMERIZATION OF OLEFINS - Catalyst compositions and processes for the polymerization of ethylenically unsaturated monomers to produce polymers, including copolymers or homopolymers. The polymerization catalyst characterized by the formula B(FluL)MQ | 04-19-2012 |
| 20120101242 | Polyethylene and Process For Production Thereof - This invention relates to a process for polymerizing olefins in which the amount of trimethylaluminum in a methylalumoxane solution is adjusted to be from 6 to 25 mole %, prior to use as an activator, where the mole % trimethylaluminum is determined by | 04-26-2012 |
| 20120116034 | SOLUTION POLYMERIZATION PROCESS AND PROCATALYST CARRIER SYSTEMS USEFUL THEREIN - A procatalyst carrier system which includes one or more paraffinic solvents, one or more paraffin-insoluble procatalysts, and optionally one or more cocatalysts wherein the carrier system is in the form of a slurry is provided. Also provided is a process including selecting one or more paraffin-insoluble organometallic procatalysts; adding the one or more procatalysts to a sufficient quantity of paraffinic solvent to form a slurry of the one or more procatalysts in the paraffinic solvent; introducing one or more first cocatalysts into a polymerization reactor; and introducing the slurry into the polymerization reactor; a reaction product of the process and articles made from the reaction product. | 05-10-2012 |
| 20120116035 | HIGH ACTIVITY, LOW MOLECULAR WEIGHT OLEFIN POLYMERIZATION PROCESS - Group 4 metal complexes comprising a polyvalent, heteroaryl donor ligand and their use as components of olefin polymerization catalysts, especially suited for preparing propylene/ethylene copolymer products having high isotacticity and low molecular weight, are disclosed. | 05-10-2012 |
| 20120142874 | Organometallic Transition Metal Compound, Catalyst System and Preparation of Polyolefins - The present invention relates to non-symmetrical organometallic transition metal compounds of the compound of the formula (I) | 06-07-2012 |
| 20120271017 | Catalyst Systems Having a Tailored Hydrogen Response - A polymerization catalyst system and polymerization processes using the catalyst systems are disclosed. The polymerization catalyst systems may include a) a first catalyst compound, and b) a second catalyst compound, wherein the first catalyst compound comprises a biphenyl phenol compound having essentially no hydrogen response. | 10-25-2012 |
| 20120271018 | Imino Carbene Compounds and Derivatives, and Catalyst Compositions Made Therefrom - The present invention provides imino carbene compounds and their derivatives, catalyst compositions containing these compounds in combination with an activator, and polymerization processes using these catalyst compositions to polymerize one or more olefins. | 10-25-2012 |
| 20120302710 | COMPLEXES FOR USE IN METATHESIS REACTIONS - The present invention relates generally to metal complexes, methods for preparation and uses of the same. | 11-29-2012 |
| 20130023635 | CATALYSTS BASED ON HETEROCYCLIC-8-ANILINOQUINOLINE LIGANDS - A catalyst system useful for polymerizing olefins is disclosed. The catalyst system comprises an activator and a Group 4 metal complex. The complex incorporates a dianionic, tridentate heterocyclic-8-anilinoquinoline ligand. In one aspect, a supported catalyst system is prepared by first combining a boron compound having Lewis acidity with excess alumoxane to produce an activator mixture, followed by combining the activator mixture with a support and the dianionic, tridentate Group 4 metal complex. The Group 4 metal complexes are easy to synthesize, support, and activate, and they enable facile production of high-molecular-weight polyolefins. | 01-24-2013 |
| 20130035462 | ETHYLENIC POLYMERIZATION CATALYST AND METHOD FOR MANUFACTURING ETHYLENIC POLYMER - A catalyst for homopolymerization of ethylene or copolymerization of ethylene and an α-olefin comprises a complex represented by Formula (1): | 02-07-2013 |
| 20130053524 | Feeding Highly Active Phosphinimine Catalysts to a Gas phase reactor - A highly active, supported phosphinimine catalyst is fed to a gas phase reactor as a slurry in a liquid hydrocarbon. Feeding the catalyst to a gas phase reactor in a viscous liquid hydrocarbon modifies catalyst initiation kinetics. | 02-28-2013 |
| 20130059991 | CATALYST FOR STEREOSELECTIVE OLEFIN POLYMERIZATION AND METHOD FOR MANUFACTURING STEREOSELECTIVE POLYOLEFIN - A stereoselective olefin polymerization catalyst contains a complex represented by Formula (1): | 03-07-2013 |
| 20130059992 | High Vinyl Terminated Propylene Based Oligomers - This invention relates to a co-oligomer having an Mn of 300 to 30,000 g/mol comprising 10 to 90 mol % propylene and 10 to 90 mol % of ethylene, wherein the oligomer has at least X % allyl chain ends, where: 1) X=(−0.94 (mole % ethylene incorporated)+100), when 10 to 60 mole % ethylene is present in the co-oligomer, and 2) X=45, when greater than 60 and less than 70 mole % ethylene is present in the co-oligomer, and 3) X=(1.83*(mole % ethylene incorporated)−83), when 70 to 90 mole % ethylene is present in the co-oligomer. This invention also relates to a homo-oligomer, comprising propylene, wherein the oligomer has: at least 93% allyl chain ends, an Mn of about 500 to about 20,000 g/mol, an isobutyl chain end to allylic vinyl group ratio of 0.8:1 to 1.2:1.0, and less than 100 ppm aluminum. This invention also relates to a process of making homo-oligomer, comprising propylene, wherein the productivity is greater than 4500 g/mmol Hf (or Zr)/hour. | 03-07-2013 |
| 20130066028 | BORANE ACTIVATED TI CATALYST SYSTEM COMPRISING AMIDINE AND DIENE LIGAND - The invention relates to a catalyst system for the polymerization of olefins comprising a metal complex of formula CyLMD and an activating cocatalyst, wherein: —M is titanium; —Cy is a cyclopentadienyl-type ligand; —D is a diene; —L is an amidinate-containing ligand of formula (1), wherein the amidinate-containing ligand is covalently bonded to the titanium via the imine nitrogen atom, Sub, is a substituent, which comprises a group 14 atom through which Sub | 03-14-2013 |
| 20130079478 | CATALYST COMPONENT FOR THE POLYMERIZATION OF OLEFINS HAVING A GUANIDINATE LIGAND - The invention relates to a new catalyst component for the polymerization of olefins comprising a compound of formula CyLMZ | 03-28-2013 |
| 20130090439 | Polymerization Of 2,3,3,3-Tetrafluoropropene And Polymers Formed From 2,3,3,3-Tetrafluoropropene - The present invention relates to methods of producing polymerized 2,3,3,3-tetrafluoropropene (poly-1234yf) using one or a combination of the techniques provided herein. In certain embodiments, such techniques include (1) emulsion polymerization; (2) suspension polymerization; (3) solution polymerization; (4) supercritical carbon dioxide polymerization; (5) transition metal catalyzed polymerization; (6) radiation or thermal polymerization; and combinations thereof. A wide array of initiators, catalysts, and solvents may be used in such polymerization processes and may include, but are not limited to, (1) radical initiators; (2) ionic initiators; and (3) single-site and multiple-site catalysts. | 04-11-2013 |
| 20130131294 | Amidinate Catalyst Compounds, Process for Their Use and Polymers Produced Therefrom - This invention relates to a method to polymerize olefins comprising contacting olefins with an amidinate catalyst compound, a chain transfer agent and an activator, where the amidinate catalyst compound is represented by the formula: (amindinate) | 05-23-2013 |
| 20130131295 | Catalyst Compounds and Use Thereof - This invention relates to Group 4 catalyst compounds containing anionic bidentate nitrogen/oxygen based ligands catalyst compounds useful for polymerization and or oligomerization of unsaturated monomers. The catalyst compounds are particularly useful, with or without activators, to polymerize olefins, particularly α-olefins, or other unsaturated monomers. | 05-23-2013 |
| 20130131296 | TI CATALYST SYSTEMS COMPRISING SUBSTITUTED CYCLOPENTADIENYL, AMIDINE AND DIENE LIGAND - The invention relates to a catalyst system for the polymerization of olefins comprising a metal complex of formula CyLMD and an activating cocatalyst, wherein M is titanium, Cy is a cyclopentadienyl-type ligand, D is a diene, L is an amidinate-containing ligand of formula (1), wherein the amidinate-containing ligand is covalently bonded to the titanium via the imine nitrogen atom, Sub | 05-23-2013 |
| 20130137840 | Processes of Controlling Molecular Weight Distribution in Ethylene/Alpha-Olefin Compositions - The present invention relates to compositions and processes of making ethylene/α-olefins. More particularly, the invention relates to processes of producing ethylene/α-olefin compositions having a controlled molecular weight distribution. The molecular weight distribution is controlled, for example, by controlling the relative monomer concentrations during contact with a pre-catalyst and/or using a catalyst comprising a catalytic amount of a molecule having the structure: | 05-30-2013 |
| 20130190467 | Low Temperature Cure Using Benzopinacol Polymerization Initiator - A polymerization initiator for reactive monomers and unsaturated polymers which is the reaction product of a metal-organic titanium compound or a metal-organic zirconium compound and pinacol compound is disclosed. Further disclosed are methods for preparing the polymerization initiator and using the polymerization initiator for low temperature curing. | 07-25-2013 |
| 20130211023 | SUPPORTED CATALYST FOR OLEFIN POLYMERIZATION AND PREPARATION METHOD FOR POLYOLEFIN USING THE SAME - The present invention relates to a supported catalyst for olefin polymerization to which a novel transition metal compound and a co-catalyst compound are bound, and a preparation method for polyolefin using the supported catalyst. The transition metal compound bound to the catalyst of the present invention provides high activity for olefin-based monomers in heterogeneous reaction as well as in homogeneous system. Particularly, a polyolefin with higher molecular weight can be prepared by using the supported catalyst containing the transition metal compound bound to a support, rather than using the novel transition metal compound in a non-supported status, or the conventional transition metal compound in a supported or non-supported status. | 08-15-2013 |
| 20130211024 | METHOD FOR PREPARING OLEFIN-DIENE COPOLYMER USING TRANSITION METAL COMPOUND CONTAINING THIOPHENE-FUSED CYCLOPENTADIENYL LIGAND - The present invention relates to a preparation method for olefin-diene copolymer that comprises polymerizing at least one olefin-based monomer and at least one diene-based monomer in the presence of a catalyst comprising a novel transition metal compound. Using the novel transition metal compound as a catalyst, the preparation method for olefin-diene copolymer according to the present invention can not only acquire high catalytic activity for copolymerization of the olefin and diene monomers to achieve high process efficiency but allow it to easily control the fine-structure characteristics of the copolymer, thereby providing an olefin-diene copolymer having desired properties with ease. | 08-15-2013 |
| 20130253155 | Activator Compositions, Their Preparation, and Their Use In Catalysis - This invention provides activator precursor compositions and activator compositions. The activator precursor compositions are formed from a support material, an organoaluminum compound, and polyfunctional compounds having at least two aromatic groups in which at least two of said aromatic groups each has at least one polar moiety thereon. The activator compositions are formed from a support material, an organoaluminum compound, an aluminoxane, and a polyfunctional compound having at least two aromatic groups in which at least two of said aromatic groups each has at least one polar moiety thereon. Also provided are catalyst compositions, processes for forming catalyst compositions, and polymerization processes utilizing the catalyst compositions of this invention. | 09-26-2013 |
| 20130338323 | POLYETHYLENE COMPOSITIONS, METHOD OF PRODUCING THE SAME, ARTICLES MADE THEREFROM, AND METHOD OF MAKING THE SAME - The instant invention is a polyethylene composition, method of producing the same, articles made therefrom, and method of making the same. The polyethylene composition according to the instant invention comprises (1) less than or equal to 100 percent by weight of the units derived from ethylene; and (2) less than 15 percent by weight of units derived from one or more α-olefin comonomers. The polyethylene composition according the instant invention has a density in the range of 0.907 to 0.975 g/cm | 12-19-2013 |
| 20130345378 | METALLOCENE COMPOUND, CATALYST COMPOSITION INCLUDING THE SAME, AND OLEFIN POLYMERIZATION PROCESS USING THE SAME - A metallocene compound is represented by the following formula, | 12-26-2013 |
| 20140024790 | MULTINUCLEAR METALLOCENE CATALYST COMPLEXES FOR OLEFIN POLYMERISATION AND COPOLYMERISATION AND METHOD OF PREPARING THEREOF - The invention relates to a multinuclear metallocene catalyst of general formula (1); wherein Y and Y′ are the same or different and independently selected from a C | 01-23-2014 |
| 20140031506 | SOLUTION PHASE POLYDIACETYLENE SYNTHESIS BY ALKYNE METATHESIS - The present disclosure provides compositions for alkyne metathesis catalysts and methods for preparing enediynes and alkyne metathesis catalysts. The disclosure also provides methods for catalyzing alkyne metathesis reactions and polymerization of enediyne substrates to polydiacetylenes in solution-phase. | 01-30-2014 |
| 20140039141 | Halogenated Catalysts Comprising Salan Ligands - Catalysts comprising a halogenated Salan ligand. Also disclosed are catalyst systems comprising the catalyst and an activator; methods to prepare the ligands, catalysts and catalyst systems; processes to polymerize olefins using the catalysts and/or catalyst systems; and the olefin polymers prepared according to the processes. | 02-06-2014 |
| 20140135461 | METHOD FOR PRODUCING OLEFIN POLYMER - A method for producing an olefin polymer including: polymerizing one or more α-olefins each having 6 to 20 carbon atoms in the presence of a metallocene catalyst to obtain an olefin polymer; deactivating and decalcifying the catalyst to obtain a decalcified polymerization reaction liquid; mixing the decalcified polymerization reaction liquid containing the olefin polymer with water; and washing the liquid with stirring at a stirring intensity of 0.1 kW/m | 05-15-2014 |
| 20140155562 | HOMOLEPTIC RARE EARTH TRIARYL COMPLEXES - The invention relates to chelate-stabilized homleptic triaryl compounds based on phenylphosphoranes, to methods for preparing same and to the use thereof as catalysts. According to the invention, the object is achieved by homleptic rare earth triaryl complexes of the general formula (I), where SE=Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb or Lu; X=O, CRR′; R | 06-05-2014 |
| 20140163186 | PROCESS FOR SELECTIVELY POLYMERIZING ETHYLENE AND CATALYST THEREFOR - The present invention generally relates to a process that selectively polymerizes ethylene in the presence of an alpha-olefin, and to a metal-ligand complex (precatalyst) and catalyst useful in such processes, and to related compositions. The present invention also generally relates to ligands and intermediates useful for preparing the metal-ligand complex and to processes of their preparation. | 06-12-2014 |
| 20140163187 | CYCLOPENTADIENYLIDENE-PHOSPHORANE CONSTRAINED GEOMETRY COMPLEXES OF RARE EARTH METALS - The invention relates to η | 06-12-2014 |
| 20140275454 | Diphenylamine salan catalyst - Catalysts comprising Salan ligands with bridged or unbridged diphenyl amine moieties. Also, catalyst systems comprising the catalyst and an activator; methods to prepare the ligands, catalysts and catalyst systems; processes to polymerize olefins using the catalysts and/or catalyst systems; and the olefin polymers prepared according to the processes. | 09-18-2014 |
| 20140275455 | BIS(2-INDENYL) METALLOCENE COMPLEX - The invention relates to a metallocene complex according to the following formula (1) | 09-18-2014 |
| 20140309388 | METATHESIS CATALYSTS AND METHODS THEREOF - The present application provides, among other things, novel compounds for metathesis reactions, and methods for preparing and using provided compounds. In some embodiments, the present invention provides compounds having the structure of formula I or II. In some embodiments, the present invention provides methods for preparing a compound of formula I or II. In some embodiments, the present invention provides methods for using a provided compound. In some embodiments, a provided compound is useful for stereoselective ring-opening metathesis polymerization. In some embodiments, a provided metathesis method provides cis and/or isotactic polymers. | 10-16-2014 |
| 20140309389 | TRIDENTATE PINCER LIGAND SUPPORTED METAL-ALKYLIDYNE AND METALLACYCLOALKYLENE COMPLEXES FOR ALKYNE POLYMERIZATION - Tridentate pincer ligand supported metal complexes are formed where the complex is a trianionic pincer ligand supported metal-alkylidyne complex or a tetra-anionic pincer-ligand supported metallacycloalkylene complex formed by addition of an alkyne to the trianionic pincer ligand supported metal-alkylidyne complex. The tridentate pincer ligand supported metal complex that includes a group 5-7 transition metal and an OCO trianionic pincer ligand or an alkyne adduct thereof and methods of preparing the complexes are disclosed. The use of the tridentate pincer ligand supported metal complex for the polymerization of alkynes is disclosed, where high molecular weight poly(alkyne)s can be formed in high yield. The poly(alkyne) can be a macrocyclic polymer. | 10-16-2014 |
| 20140316088 | METATHESIS CATALYSTS AND METHODS THEREOF - The present invention provides, among other things, novel compounds and methods for metathesis reactions. In some embodiments, a provided compound has the structure of formula I or II. In some embodiments, the present invention provides compounds and methods for Z-selective olefin metathesis. | 10-23-2014 |
| 20140316089 | Pyridyldiamide Metal Catalysts and Processes to Produce Polyolefins - Disclosed are new classes of pyridyldiamide catalyst components useful in olefin polymerization, an example of which includes: | 10-23-2014 |
| 20140343238 | PROCESS FOR THE PREPARATION OF METALLOCENE COMPLEXES - A process comprising reacting a 2-indenylboranic acid (ester) with a bromosubstituted compound in the presence of the Pd catalyst bis(triphenylphosphin)palladium dichloride and a base to form the corresponding bridged bis(indenyl) ligand. Where the 2-indenylboranic acid (ester) is the pinacolester of 2-indenylboranic acid, the process may further comprise reacting a 2-bromo indene compound with pinacolborane in the presence of a Pd catalyst and a base to form the corresponding 2-indenylpinacolylborane compound. Bridged bis(indenyl)ligands may suitably be used in the preparation of metallocene complexes, such as 2,2′-bis(2-indenyl)biphenyl ZrCl | 11-20-2014 |
| 20150051360 | Cyclobutylidene-Bridged Metallocenes and Catalyst Systems Containing the Same - Disclosed herein are catalyst compositions containing cyclobutylidene-bridged metallocene compounds. These catalyst compositions can be used for the polymerization of olefins. | 02-19-2015 |
| 20150133614 | Increased Polymer Melt Flow Ratio Via Feed of a Supported Catalyst Saturated With a Selected Liquid Agent - A process for the production of ethylene alpha-olefin copolymers is disclosed. The process may include feeding a catalyst system comprising a supported metallocene, such as a hafnocene, having pores saturated with a selected liquid agent, to a gas phase polymerization reactor. Ethylene and an alpha-olefin may then be contacted with the supported metallocene in the gas phase polymerization reactor to produce an ethylene alpha-olefin copolymer. The copolymer may have a density of less than 0.93 g/cm | 05-14-2015 |
| 20150141601 | Pyridyldiamido Transition Metal Complexes, Production and Use Thereof - Pyridyldiamido transition metal complexes are disclosed for use in alkene polymerization. | 05-21-2015 |
| 20150291710 | Vinyl Terminated Macromonomers - Polymers produced by a process comprising contacting one or more olefins with a catalyst system comprising an activator and a Salan catalyst disposed on a support. | 10-15-2015 |
| 20150291713 | CATALYST SYSTEMS FOR OLEFIN POLYMERIZATION - The instant invention provides procatalysts and catalyst systems for olefin polymerization, olefin based polymers polymerized therewith, and process for producing the same. In one embodiment, the instant invention provides a procatalyst comprising a metal-ligand complex of formula (I). | 10-15-2015 |
| 20150298110 | LIGAND COMPOUND, ORGANIC CHROMIUM COMPOUND, CATALYST SYSTEM FOR ETHYLENE OLIGOMERIZATION, PREPARATION METHOD THEREOF, AND ETHYLENE OLIGOMERIZATION METHOD USING THE SAME - The present invention relates to a ligand compound, an organic chromium compound, a catalyst system for ethylene oligomerization, a preparation method thereof, and an ethylene oligomerization method using the same. The catalyst system for ethylene oligomerization according to the present invention is used to prepare a low-density polyethylene in one reactor by using a small amount of comonomers such as alpha-olefin or by using only ethylene without comonomers, because it maintains high catalytic activity and high alpha-olefin selectivity even though supported on a support. | 10-22-2015 |
| 20150307643 | POLYMERIZATION PROCESSES FOR HIGH MOLECULAR WEIGHT POLYMERS - A process to for polymerizing ethylene in the presence of a metal complex of Structure I, as described herein, which comprises a metal selected from one of Groups 3-6, which is bonded to aryl groups via oxygen and two Z groups. The aryl groups comprise substituents R1a, R1aa, through R15a, R15aa, which are selected from hydrogen, halo, hydrocarbyl, trihydrocarbylsilyl, trihydrocarbylsilylhydrocarbyl, —O(R), —N(R′R″), —S(R′″), or —P(R | 10-29-2015 |
| 20150315314 | ETHYLENE COPOLYMER COMPOSITIONS, FILM AND POLYMERIZATION PROCESSES - Ethylene copolymers having a relatively high melt flow ratio and a multimodal profile in a temperature rising elution fractionation (TREF) plot are disclosed. The copolymers can be made into film having good dart impact values and good stiffness properties under decreased extruder pressures. | 11-05-2015 |
| 20150322185 | ETHYLENE/ALPHA-OLEFIN/NONCONJUGATED POLYENE INTERPOLYMERS AND PROCESSES TO FORM THE SAME - The invention provides a solution polymerization process to form an ethylene/α-olefin/nonconjugated polyene interpolymer, said process comprising polymerizing ethylene, an α-olefin, and a nonconjugated polyene in at least one reactor in the presence of a catalyst selected from Formula I, as described herein; and wherein the polymerization is conducted in a continuous process; and wherein the interpolymer has a rheology ratio (V0.1/V100 at 19° C.) greater than, or equal to, 20. | 11-12-2015 |
| 20150329653 | CATALYST - A catalyst in solid particulate form free from an external carrier material comprising
| 11-19-2015 |
| 20150344598 | USE OF A METALLOCENE CATALYST TO PRODUCE A POLYALPHA-OLEFIN - A process may include contacting an olefin monomer and a racemic bridged metallocene catalyst at a temperature of 80° C. to 150° C. in the presence of hydrogen. The racemic bridged metallocene catalyst may include a metallocene compound (A) and an activator component (B). The process may include recovering an effluent containing polyalpha-olefins (PAOs). The metallocene compound (A) may be represented by the formula R(Cp | 12-03-2015 |
| 20150344602 | A Polymerization Process for Producing Ethylene Based Polymers - The instant invention provides a polymerization process for producing ethylene based polymers. | 12-03-2015 |
| 20150361192 | METHODS FOR PREPARING CATALYST SYSTEMS WITH INCREASED PRODUCTIVITY - Methods for producing catalyst systems with increased productivity are disclosed. The methods may comprise providing a catalyst composition comprising a solvent and a single-site catalyst component, heating an inert gas to a temperature in a range of from about 100° C. to about 150° C., and spray drying the catalyst composition in the presence of the inert gas to form a spray-dried catalyst system. Additionally, the methods may comprise providing a catalyst composition comprising a solvent, an activator, a filler material, a metallocene catalyst, and a Group 15-containing catalyst; heating an inert gas to a temperature in a range of from about 100° C. to about 150° C.; and spray drying the catalyst composition in the presence of the inert gas to form a spray-dried catalyst system. | 12-17-2015 |
| 20150361196 | CATALYST COMPOSITION AND METHOD OF PREPARING POLYMER INCLUDING THE SAME - The present invention relates to a catalyst composition and a method of preparing a polymer including the same. | 12-17-2015 |
| 20150368377 | PREPARATION OF POLYOLEFIN - Catalyst systems and methods for making and using the same are provided. The catalyst systems can include a plurality of silica particles and a metallocene catalyst and an activator supported on the plurality of silica particles. The polymerization catalysts have a particle size distribution in which about 10% of the particles have a size less than about 17 to about 23 micrometers, about 50% of the particles have a size less than about 40 to about 45 micrometers, and about 90% of the particles have a size less than about 72 to about 77 micrometers. | 12-24-2015 |
| 20150376312 | Higher Density Polyolefins With Improved Stress Crack Resistance - Disclosed herein are polymerization processes for the production of olefin polymers. These polymerization processes can employ a catalyst system containing two or three metallocene components, resulting in ethylene-based copolymers that can have a medium density and improved stress crack resistance. | 12-31-2015 |
| 20160024237 | TRIDENTATE NITROGEN BASED LIGANDS FOR OLEFIN POLYMERISATION CATALYSTS - Catalyst systems and methods for making and using the same are provided. A method for forming a polymer catalyst includes reacting a bromoketone compound with an aryl amine compound to form an amide compound. The amide compound is reacted with an ethylene diamine compound, to form a terminal primary amine compound. The terminal primary amine compound is reacted with a bromoaryl compound to form a ligand. | 01-28-2016 |
| 20160039952 | PRODUCTION METHOD OF OLEFIN POLYMER AND OLEFIN POLYMERIZATION CATALYST - To provide a method of efficiently affording olefin polymers having a high molecular weight and a high melting point even under industrially advantageous high-temperature conditions. A production method of an olefin polymer to solve the above problem includes polymerizing monomer(s) including at least one α-olefin having 3 or more carbon atoms at 50° C. to 200° C. in the presence of an olefin polymerization catalyst including; (A) a crosslinked metallocene compound represented by General Formula [I] below; and (B) at least one compound selected from (b-1) an organoaluminum oxy-compound, (b-2) a compound that forms an ion pair by reacting with the crosslinked metallocene compound (A), and (b-3) an organoalunimum compound. | 02-11-2016 |
| 20160108156 | MOLECULAR WEIGHT CONTROL OF POLYOLEFINS USING HALOGENATED BIS-PHENYLPHENOXY CATALYSTS - A process for preparing an olefin homopolymer or copolymer comprises contacting ethylene, an alpha-olefin, or a combination, and a catalytic amount of a metal-ligand complex catalyst of a particular formula that requires at least one halogen atom that is ortho to a bridging moiety. The strategic location of the halogen atom(s) ensures a product having a molecular weight that is predictably and significantly reduced in comparison with that of copolymers produced using otherwise identical metal-ligand complex catalysts that lack halogen atoms at the specified sites. | 04-21-2016 |
| 20160122370 | BIMETALLIC COMPLEX COMPRISING CYCLOPENTADIENYL AND AMIDINE LIGANDS - The present invention relates to a new bimetallic complex of the formula (1) wherein: M is a group 4-6 metal R | 05-05-2016 |
| 20160122452 | Ethylene-Propylene Copolymeric Compositions With Long Methylene Sequence Lengths - This invention relates to methods to prepare and compositions pertaining to branched ethylene-propylene copolymers that include at least 50% ethylene content by weight as determined by FTIR; a g′ | 05-05-2016 |
| 20170233415 | NOVEL GROUP 4 TRANSITION METAL COMPOUND AND USE THEREOF | 08-17-2017 |
| 20180022770 | METAL COMPLEXES AND A PROCESS OF PREPARING THEM | 01-25-2018 |
| 20180022844 | ETHYLENE/1-BUTENE COPOLYMERS WITH ENHANCED RESIN PROCESSABILITY | 01-25-2018 |
| 20190144570 | METAL COMPLEXES | 05-16-2019 |
| 20220135709 | METALLACYCLOPENTADIENE INITIATORS FOR CYCLIC POLYMER SYNTHESIS FROM ALKYNES - Provided herein are complexes for polymerization of linear alkynes to cyclic poly(alkynes), and methods of making and using same. For example, provided herein are compounds of formula (I) or formula (IV): | 05-05-2022 |
