Matches 1 - 50 out of 76 1 2 >

AcclaimIP-ad

Match Document Document Title
US20050148742 Method for controlling sheeting in gas phase reactors  
Embodiments of the present invention relate to measuring and controlling static in a gas phase reactor polymerization. In particular, embodiments relate to monitoring carryover static in an...
US20110009580 Novel copolymers  
A copolymer of ethylene and an alpha-olefin, said copolymer having a (a) density>0.930 g/cm3, (b) melt index (g/10 min)>4, (c) molecular weight distribution (MWD)>3.0, and (d) FNCT>250 hours., and...
US20080051538 BIMODAL PIPE RESIN AND PRODUCTS MADE THEREFROM  
Disclosed is a bimodal Ziegler-Natta catalyzed polyethylene, having a density of from 0.930 g/cc to 0.960 g/cc, and a molecular weight distribution of from 10 to 25, wherein an article formed...
US20160200839 POLYPROPYLENE COMPOSITION COMPRISING A PROPYLENE COPOLYMER COMPONENT  
The present invention concerns a polypropylene composition comprising a nucleated propylene copolymer having improved optical properties.
US20060264320 Hydrophobization and silica for supported catalyst  
This invention relates to a catalyst support comprising the result of the combination of: (a) a support comprising hydroxyl groups; (b) a capping agent comprising a boron containing Lewis acid;...
US20120095175 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...
US20090036619 Highly crystalline polypropylene waxes  
Polypropylene wax having a) a dropping or softening point determined by the ring/ball method of greater than 155° C.,b) heats of fusion greater than 80 J/g andc) a DSC melting point of >155° C....
US20060178491 Olefin polymerization catalysts  
The invention is a catalyst system including a Group IV B transition metal component and an alumoxane component which may be employed to polymerize olefins to produce a high molecular weight polymer.
US20050131170 Elastic substantially linear olefin polymers  
Substantially linear olefin polymers having a melt flow ratio, I10/I2, ≧5.63, a molecular weight distribution, Mw/Mn, defined by the equation: Mw/Mn≦(I10/I2)−4.63, and a critical shear stress at...
US20090215973 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...
US20050272891 Double loop technology  
The present invention relates to an apparatus and process for polymerizing olefins. One embodiment comprises polymerizing at least one monomer in a first loop reactor in the presence of a catalyst...
US20130090439 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,...
US20100280153 MODIFIED PROPYLENE RESIN  
It is an object of the present invention to provide a modified propylene resin containing very small amounts of low-crystalline and low-molecular-weight components. The present invention relates...
US20120016092 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...
US20100292421 BRIDGED METALLOCENE COMPOUND, OLEFIN POLYMERIZATION CATALYST CONTAINING THE SAME, AND ETHYLENE POLYMER OBTAINED WITH THE CATALYST  
Metallocene compounds of the invention are useful as olefin polymerization catalysts or catalyst components. Olefin polymerization processes of the invention involve an olefin polymerization...
US20120116034 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...
US20080051537 Supported Bis(Hydroxylarylaryloxy) Catalysts For Manufacture Of Polymers  
A supported, heterogeneous catalyst composition for use in polymerization of addition polymerizable monomers to form high molecular weight polymers, comprising: 1) a substrate comprising a solid,...
US20130035462 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): wherein n is 2 or 3; R1 and R2 are independently an...
US20070260026 Catalyst for Olefin Polymerization Process for Producing Olefin Polymer, Olefin Copolymer, Novel Transition Metal Compound, and Process for Producing Transition Metal Compound  
[Task] To provide a catalyst for olefin polymerization having an excellent olefin polymerization performance and capable of producing a polyolefin with excellent properties. [Construction] A...
US20050159566 Process for producing highly flowable propylene polymer and highly flowable propylene polymer  
A propylene polymer can be produced which has evenness of composition and regulated stereoregularity and is highly flowable and highly flexible. Also provided is propylene-based modifier giving a...
US20060241256 Use of polyethylene compositions  
The use in the manufacture of a polyethylene article of a polyethylene composition comprising 20 to 50% wt of a copolymer of ethylene and a C3-20 alpha olefin comonomer and 50 to 80% wt. Of a...
US20100121006 POLYOLEFIN AND PREPARATION METHOD THEREOF  
The present invention relates to a polyolefin that has high environmental stress cracking resistance (ESCR), a high impact property, and an excellent die swell property, and a method of preparing...
US20060287449 Ultrahigh-molecular ethylene polymer  
The present invention relates to an ultrahigh molecular weight ethylene polymer which is either an ethylene homopolymer (A) or an ethylene copolymer (B), the ethylene copolymer (B) being obtained...
US20100190941 TRANSITION METAL COMPOUND, CATALYST FOR OLEFIN POLYMERIZATION, AND PROCESS FOR PRODUCING OLEFIN POLYMER  
Provided is a transition metal compound novel and useful as a catalyst component for olefin polymerization, a catalyst for olefin polymerization containing the transition metal compound, and a...
US20090018293 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...
US20110003953 Carbon-Bridged Cyclopentadienyl-Fluorenyl Ligands  
The present invention discloses efficient methods for preparing substituted cyclopentadienyl-fluorenyl catalyst components having a mono-carbon bridge.
US20070255028 Fluorinated transition metal catalysts and formation thereof  
Supported catalyst systems and methods of forming polymers are generally described herein. The polymerization processes generally include contacting an inorganic support composition with a...
US20130131294 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...
US20050228156 Preparation of polyethylene films  
A very low density polyethylene (VLDPE) film is disclosed. The film has a high average heat seal strength and physical strength. The VLDPE has a density within the range of about 0.880 to 0.914...
US20100048841 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...
US20100311927 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...
US20080108765 Activating Agents for Hafnium-Based Metallocene Components  
The present invention discloses an active metallocene catalyst system prepared with a hafnium-based metallocene catalyst system and an activating agent comprising an aluminoxane and a sterically...
US20130059991 CATALYST FOR STEREOSELECTIVE OLEFIN POLYMERIZATION AND METHOD FOR MANUFACTURING STEREOSELECTIVE POLYOLEFIN  
A stereoselective olefin polymerization catalyst contains a complex represented by Formula (1): wherein n is 2 or 3; R1 and R2 are independently an optionally substituted alkyl group or a halogen...
US20060293470 Polymerization process using spray-dried catalyst  
A polymerization process for producing polyolefins, which process employs a spray-dried catalyst composition, is provided. An example of a process is a gas phase process for making polyolefins,...
US20070060726 Random olefin copolymers  
Provided is a method for the production of an olefin co-polymer, which method comprises co-polymerising two or more olefin monomers in the presence of a metallocene catalyst, wherein the...
US20130066028 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...
US20070129518 High dimension stability and high processability polyethylene in injection molding  
This invention discloses single layer articles having improved dimensional stability and improved processability produced by injection moulding and consisting essentially of polyethylene (PE)...
US20070073013 Method for making polyolefins having internal double bonds  
The invention provides a method for the production of a non-linear polyolefin, which method comprises: (a) providing a polyolefin having a ratio of internal to terminal double bonds of at least...
US20100305286 CATALYSTS  
A complex comprising a ligand of formula (I), wherein each R1, which may be the same or different, is hydrogen, an optionally substituted C1-20 hydrocarbyl group, N(R5)2, silyl, siloxy; an...
US20090156764 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...
US20080033124 Polymerization Process  
This invention relates to processes for preparing polyolefins in the presence of a perfluorocarbon or hydrofluorocarbon with an activated, nonmetallocene, metal-centered, heteroaryl ligand catalyst.
US20150329653 CATALYST  
A catalyst in solid particulate form free from an external carrier material comprising (i) a complex of formula (I) whereinM is zirconium or hafnium;each X is a sigma ligand;L is a divalent bridge...
US20120070596 ETHYLENE COPOLYMER WITH IMPROVED HYGIENIC PROPERTY AND PROCESS FOR PREPARING THE SAME  
Provided is an ethylene copolymer having improved hygienic property. More particularly, the ethylene copolymer satisfies a correlation between a density thereof and an extract content. The...
US20090111956 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...
US20090264608 METHOD FOR PRODUCING NORBORNENE BASED ADDITION (CO)POLYMER  
By specifying a catalyst system (combination of catalyst and cocatalyst) which has high polymerization activity, a norbornene based addition (co)polymer is efficiently produced. Specifically,...
US20110281195 FUEL CELL ADHESIVE AND PROCESS OF MAKING THE SAME  
A fuel cell adhesive comprises a polyolefin adhesive having a bonding strength sufficient to adhere two fuel cell stack components together. The bonding strength of the polyolefin adhesive is less...
US20110282011 METHOD FOR PREPARING ELASTOMERIC COPOLYMERS OF ETHYLENE AND a-OLEFINS  
Provided is a process for preparing copolymers of ethylene with α-olefin. More specifically, provided are transition metal compound being useful as catalyst for preparing those copolymers, a...
US20110098426 TRANSITION METAL CATALYTIC SYSTEMS AND METHODS FOR PREPARING ETHYLENE HOMOPOLYMERS OR COPOLYMERS OF THE ETHYLENE AND a-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,...
US20170129977 POLYETHYLENE RESINS  
Polyethylene resins having variable swell and excellent physical properties are provided. The polyethylene resins may be advantageously prepared using a single catalyst system.
US20090306318 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...
Matches 1 - 50 out of 76 1 2 >