| Patent Number |
Title Of Patent |
Date Issued |
| 7420097 |
Synthesis of 6-aryl-6-alkyl fulvenes, 6-aryl-6-alkenyl fulvenes, and related compounds |
September 2, 2008 |
| The present invention provides a method of making fulvenes, particularly 6-aryl-6-alkylfulvenes, 6-aryl-6-alkenylfulvenes, and related compounds, by combining alkyl- or alkenyl-arylketones with magnesium cyclopentadienyl reagents in nonprotic, including ethereal, solvents. The use of |
| 7417097 |
Organometal compound catalyst |
August 26, 2008 |
| This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition c |
| 7390764 |
Organometal catalyst compositions |
June 24, 2008 |
| This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition co |
| 7312283 |
Polymerization catalysts and process for producing bimodal polymers in a single reactor |
December 25, 2007 |
| Catalyst compositions comprising a first metallocene compound, a second metallocene compound, an activator-support, and an organoaluminum compound are provided. Methods for preparing and using such catalysts to produce polyolefins are also provided. The compositions and methods discl |
| 7294599 |
Acidic activator-supports and catalysts for olefin polymerization |
November 13, 2007 |
| This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, typically using a supported catalyst composition. In one aspect, this invention encompasses precontacting a metallocene with an olefin o |
| 7199073 |
Resins that yield low haze films and the process for their production |
April 3, 2007 |
| Catalyst compositions comprising a first metallocene compound, a second metallocene compound, a third metallocene compound, a chemically-treated solid oxide, and an organoaluminum compound are provided. Methods for preparing and using the catalyst and polyolefins are also provided. The |
| 7163906 |
Organochromium/metallocene combination catalysts for producing bimodal resins |
January 16, 2007 |
| This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, including polymerization methods using a supported catalyst composition. In one aspect, the present invention encompasses a catalyst |
| 7148298 |
Polymerization catalysts for producing polymers with low levels of long chain branching |
December 12, 2006 |
| This invention relates to catalyst compositions, methods, and polymers encompassing a Group 4 metallocene with bridging .eta..sup.5-cyclopentadienyl-type ligands, in combination with a cocatalyst and an activator-support. The compositions and methods disclosed herein provide ethylene |
| 7119153 |
Dual metallocene catalyst for producing film resins with good machine direction (MD) elmendorf t |
October 10, 2006 |
| This invention relates to catalyst compositions comprising a first metallocene compound, a second metallocene compound, at least one chemically-treated solid oxide, and at least one organoaluminum compound. This invention also relates to methods to prepare and use the catalyst compos |
| 7119043 |
Olefin polymerization processes and products thereof |
October 10, 2006 |
| A novel loop/slurry olefin polymerization process is provided which produces ultra high molecular weight ethylene homopolymers and ultra high molecular weight ethylene copolymers. Catalyst systems used are selected from the group consisting of inorganic oxide supported titanium-conta |
| 7109277 |
Polymerization catalysts |
September 19, 2006 |
| A process to produce a polymer is provided. The process comprising contacting a treated solid oxide compound, an organometal compound, and an organoaluminum compound in the presence of an alpha olefin under polymerization conditions to produce the polymer. |
| 7094857 |
Ethylene polymers and copolymers with high optical opacity |
August 22, 2006 |
| This invention relates to the field of metal-catalyzed olefin polymerization methods and the polymers and films prepared therefrom. In one aspect, this invention provides polyethylene and ethylene/.alpha.-olefin copolymers formed in the presence of tightly-bridged metallocene catalys |
| 7064225 |
Synthesis of ansa-metallocenes and their parent ligands in high yield |
June 20, 2006 |
| The present invention provides a method of making compounds comprising linked cyclopentadienyl and fluorenyl groups, including substituted analogs thereof, which are precursors to ansa-metallocenes comprising bridged cyclopentadienyl and fluorenyl ligands. In one aspect, this inventi |
| 7041753 |
Organometal catalyst compositions |
May 9, 2006 |
| This invention provides oxide matrix compositions that can be utilized in catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. The oxide matrix composition comprises residual mineral components and an oxide precursor. The catalyst composit |
| 7041617 |
Catalyst compositions and polyolefins for extrusion coating applications |
May 9, 2006 |
| This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, including polymerization methods using a supported catalyst composition. In one aspect, the present invention encompasses a catalyst |
| 7026494 |
Polymerization catalysts for producing high melt index polymers without the use of hydrogen |
April 11, 2006 |
| Various catalyst compositions including the contact product of at least one ansa-metallocene compound, at least one organoaluminum compound, and at least one activator-support are disclosed. Processes for forming such compositions and for forming polyolefins with such compositions are al |
| 6992032 |
Organometal catalyst compositions |
January 31, 2006 |
| This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition c |
| 6984603 |
Organometal catalyst compositions |
January 10, 2006 |
| This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition c |
| 6982306 |
Stannoxy-substituted metallocene catalysts for olefin and acetylene polymerization |
January 3, 2006 |
| This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, including polymerization methods using a catalyst composition. One aspect of this invention is the formation and use of a catalyst c |
| 6936667 |
Polymerization catalyst compositions and processes to produce polymers and bimodal polymers |
August 30, 2005 |
| A process to produce a first catalyst composition is provided. The process comprises contacting at least one first organometal compound and at least one activator to produce the first catalyst composition. The activator is selected from the group consisting of aluminoxanes, fluoro-organo |
| 6878785 |
Organometal compound catalyst |
April 12, 2005 |
| This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition c |
| 6858687 |
Organometal catalyst compositions |
February 22, 2005 |
| This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition c |
| 6838533 |
Organometal catalyst composition |
January 4, 2005 |
| This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition c |
| 6833338 |
Organometal compound catalyst |
December 21, 2004 |
| This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition c |
| 6750302 |
Organometal catalyst compositions |
June 15, 2004 |
| A polymerization catalyst is disclosed, wherein the catalyst comprises: (a) a metallocene of Ti, Zr or Hf, (b) an organoaluminum compound, and (c) a treated solid oxide support which comprises fluorine and chromium. |
| 6667274 |
Polymerization catalysts |
December 23, 2003 |
| A process to produce a polymer is provided. The process comprising contacting a treated solid oxide compound, an organometal compound, and an organoaluminum compound in the presence of an alpha olefin under polymerization conditions to produce the polymer. |
| 6657034 |
Olefin polymerization processes and products thereof |
December 2, 2003 |
| A novel loop/slurry olefin polymerization process is provided which produces ultra high molecular weight ethylene homopolymers and ultra high molecular weight ethylene copolymers. Catalyst systems used are selected from the group consisting of inorganic oxide supported titanium-containin |
| 6653416 |
Polymerization process utilizing organometal catalyst compositions and the polymer produced ther |
November 25, 2003 |
| This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition c |
| 6632894 |
Organometal catalyst compositions |
October 14, 2003 |
| This invention provides oxide matrix compositions that can be utilized in catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. The oxide matrix composition comprises residual mineral components and an oxide precursor. The catalyst composit |
| 6613852 |
Organometal catalyst compositions |
September 2, 2003 |
| This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition c |
| 6613712 |
Organometal catalyst compositions with solid oxide supports treated with fluorine and boron |
September 2, 2003 |
| The invention provides for compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein the composition comprises a post-contacted organometal compound, a post-contacted organoaluminum compound, and a post-contacted solid oxide compound treated with bo |
| 6576583 |
Organometal catalyst composition |
June 10, 2003 |
| This invention provides a process for producing a catalyst composition comprising contacting at least one group 4 metallocene, at least one organoaluminum compound, and at least one solid. The solid is selected from the group consisting of titanium tetrafluoride, zirconium tetrafluor |
| 6548442 |
Organometal compound catalyst |
April 15, 2003 |
| This invention is directed to an organometal compound catalyst that is useful for polymerizing at least one monomer to produce a polymer. The catalyst is produced by combining a titanium, zirconium or hafnium organometal compound, preferably a metallocene, at least one organoaluminum |
| 6548441 |
Organometal catalyst compositions |
April 15, 2003 |
| This invention provides a catalyst composition for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition comprises an organometal compound, an organoaluminum compound, and a treated solid oxide compound comprising nickel, a halogen, and a solid oxi |
| 6528448 |
Polymerization catalyst compositions and processes to produce polymers and bimodal polymers |
March 4, 2003 |
| A process to produce a first catalyst composition is provided. The process comprises contacting at least one first organometal compound, oxygen bridged mono-cyclopentadienyl transition metal dimer, and at least one activator to produce the first catalyst composition. The activator is |
| 6524987 |
Organometal catalyst compositions |
February 25, 2003 |
| This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition c |
| 6395666 |
Organometal catalyst compositions |
May 28, 2002 |
| This invention provides catalyst composition for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition comprises as organometal compound, as organoaluminum compound, and a fluorided solid oxide compound. |
| 6391816 |
Organometal compound catalyst |
May 21, 2002 |
| This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition c |
| 6376415 |
Organometal catalyst compositions |
April 23, 2002 |
| This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce said polymer, wherein said catalyst compositio |
| 6355594 |
Organometal catalyst compositions |
March 12, 2002 |
| This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition c |
| 6339035 |
Catalyst and process for polymerizing olefins |
January 15, 2002 |
| A catalyst system comprising the product resulting from the combination of a metallocene having a monoorganoamide radical attached to the metal of the metallocene and a cocatalyst having alkylaluminum groups and the use of such catalyst systems in the polymerization of olefin. |
| 6329476 |
Olefin polymerization processes and products thereof |
December 11, 2001 |
| A novel loop/slurry olefin polymerization process is provided which produces ultra high molecular weight ethylene homopolymers and ultra high molecular weight ethylene copolymers. Catalyst systems used are selected from the group consisting of inorganic oxide supported titanium-containin |
| 6194526 |
Processes that produce polymers |
February 27, 2001 |
| A process to produce a polymer is provided. The process comprises polymerizing monomers wherein the monomers comprise ethylene, 1-butene, and 1-hexene. The total amount of 1-butene and 1-hexene in the polymer is less than 10 mole percent of the polymer, and the mole ratio of 1-butene |
| 6037433 |
Olefin polymerization processes and products thereof |
March 14, 2000 |
| A novel loop/slurry olefin polymerization process is provided which produces ultra high molecular weight ethylene homopolymer. |
| 6034186 |
Olefin polymerization processes and products thereof |
March 7, 2000 |
| A novel loop/slurry olefin polymerization process is provided which produces ultra high molecular weight ethylene homopolymer. |
| 5747407 |
Method of making a Ziegler-Natta olefin polymerization catalyst |
May 5, 1998 |
| A composition which can be used in, for example, slurry polymerization of an olefin such as, for example, ethylene is produced by a process comprising: (1) combining a first transition metal compound and a metal halide to form a solution; (2) contacting the solution with a precipitat |
| 5607655 |
Olefin polymerization catalyst and precursor therefor |
March 4, 1997 |
| A generally dipyramidal-shaped catalyst precursor is prepared by dissolving magnesium dichloride and a suitable alcohol in a suitable solvent and then cooling to obtain a precipitate of the desired shape. The use of the precursor to prepare catalysts and the use of the catalysts to prepa |
| 5500396 |
Process to make small, discrete, spherical adducts |
March 19, 1996 |
| A process to make a small, discrete, spherical magnesium dihalide alcohol adduct is provided. This process comprises: contacting a magnesium dihalide and an alcohol in a high-viscosity liquid that consists of hydrocarbons, to obtain a dispersion; heating and agitating the dispersion |
| 5380803 |
Polyethylene blends |
January 10, 1995 |
| A composition of matter comprising: (a) 10 to 80 weight percent inclusive of a low molecular weight polyethylene resin having a density of at least 0.94 grams per cubic centimeter, a melt index greater than 25 grams per 10 minutes, and a heterogeneity index between 2 and 12 inclusive; an |
| 5350724 |
Polyolefin polymerization process, process of producing catalyst, and catalyst |
September 27, 1994 |
| A process for preparing a polymerization catalyst useful for the polymerization of olefins is provided comprising contacting a magnesium compound and a transition metal halide to form a solid product; contacting the solid product with an organoaluminum halide to form a first catalyst |
