| Patent Number |
Title Of Patent |
Date Issued |
| 7553917 |
Technique for selecting polymerization modifiers cross reference statement |
June 30, 2009 |
| A combinatorial method for identifying a catalyst composition for use in the homogeneous addition polymerization of an olefin monomers, said catalyst composition comprising a transition metal compound, a cocatalyst and a polymerization modifier, as well as catalyst compositions and i |
| 7344775 |
Isotactic propylene copolymer fibers, their preparation and use |
March 18, 2008 |
| Fibers comprising a propylene homopolymer or a copolymer of propylene and at least one of ethylene and one or more unsaturated comonomers exhibit desirable properties. The homopolymers are characterized as having .sup.13C NMR peaks corresponding to a regio-error at about 14.6 and about |
| 7300983 |
High melt strength polymers and method of making same |
November 27, 2007 |
| A polymer composition that has a backbone chain; and a plurality of long chain branches connected to the backbone is described. The polymer composition also has a value of .sup.2g'.sub.LCB-.sup.1g'.sub.LCB that is less than about 0.22, where .sup.1g'.sub.LCB is the long chain branching |
| 7271221 |
Method of making interpolymers and products made therefrom |
September 18, 2007 |
| Olefin polymers having a melt strength of about 5cN at 190 .degree. C., and when made into a film have a CD shrink of at least 20%. Some of the polymers have a comb-like structure with at least 0.3 long-chain branches per 1000 carbon atoms are disclosed. Some compositions described herei |
| 7250471 |
Impact resistance polymer blends of crystalline polypropylene and partially crystalline, low mol |
July 31, 2007 |
| Polymer blends that exhibit good impact resistance comprise a crystalline polypropylene matrix and a partly crystalline copolymer impact modifier with a molecular weight lower than that of the matrix polymer. The matrix polymer can comprise any crystalline propylene homo- or copolymer. T |
| 7250470 |
Crystallization of polypropylene using a semi-crystalline, branched or coupled nucleating agent |
July 31, 2007 |
| A method of nucleating a propylene homo- or copolymer, the method comprising contacting the propylene polymer with a semi-crystalline branched or coupled polymeric nucleating agent under nucleation conditions. In one embodiment, the propylene homopolymer is characterized as having .s |
| 7238759 |
Isotactic propylene copolymers, their preparation and use |
July 3, 2007 |
| Unique copolymers comprising propylene, ethylene and/or one or more unsaturated comonomers are characterized as having: at least one, preferably more than one, of the following properties: (i) .sup.13C NMR peaks corresponding to a regio-error at about 14.6 and about 15.7 ppm, the pea |
| 7214638 |
Olefin polymerization catalyst composition comprising group 13 amide derivatives |
May 8, 2007 |
| Catalyst compositions that are highly tolerant of catalyst poisons for use in addition polymerizations comprising a catalytic derivative of a Group 4 metal complex, a cocatalyst, and a Group 13 metal amide compound. |
| 7199203 |
Isotactic propylene copolymer fibers, their preparation and use |
April 3, 2007 |
| Fibers comprising a propylene homopolymer or a copolymer of propylene and at least one of ethylene and one or more unsaturated comonomers exhibit desirable properties. The homopolymers are characterized as having .sup.13C NMR peaks corresponding to a regio-error at about 14.6 and about |
| 7148305 |
Method of making interpolymers and products made therefrom |
December 12, 2006 |
| Olefin polymers having a comb-like structure with at least 0.3 long-chain branches per 1000 carbon atoms are disclosed. Some compositions have a melt strength of about 5 cN at 190.degree. C., and when made into a film have a CD shrink of at least 20%. Some compositions described herein |
| 7109269 |
Impact resistant polymer blends of crystalline polypropylene and partially crystalline, low mole |
September 19, 2006 |
| Polymer blends that exhibit good impact resistance comprise a crystalline polypropylene matrix and a partly crystalline copolymer impact modifier with a molecular weight lower than that of the matrix polymer. The matrix polymer can comprise any crystalline propylene homo- or copolymer. T |
| 7060754 |
Crystallization of polypropylene using a semi-crystalline, branched or coupled nucleating agent |
June 13, 2006 |
| A method of nucleating a propylene homo- or copolymer, the method comprising contacting the propylene polymer with a semi-crystalline branched or coupled polymeric nucleating agent under nucleation conditions. In one embodiment, the propylene homopolymer is characterized as having .s |
| 6960635 |
Isotactic propylene copolymers, their preparation and use |
November 1, 2005 |
| Unique copolymers comprising propylene, ethylene and/or one or more unsaturated comonomers are characterized as having: at least one, preferably more than one, of the following properties: (i) .sup.13 C NMR peaks corresponding to a regio-error at about 14.6 and about 15.7 ppm, the pe |
| 6953764 |
High activity olefin polymerization catalyst and process |
October 11, 2005 |
| Group 4 metal complexes useful as addition polymerization catalysts of the formula: ##STR1##wherein G.sup.1 is a group containing from 1 to 40 atoms not counting hydrogen; T is a divalent bridging group of from 10 to 30 atoms not counting hydrogen, selected from mono- or di-aryl-su |
| 6943215 |
Impact resistant polymer blends of crystalline polypropylene and partially crystalline, low mole |
September 13, 2005 |
| Polymer blends that exhibit good impact resistance comprise a crystalline polypropylene matrix and a partly crystalline copolymer impact modifier with a molecular weight lower than that of the matrix polymer. The matrix polymer can comprise any crystalline propylene homo- or copolymer. T |
| 6927256 |
Crystallization of polypropylene using a semi-crystalline, branched or coupled nucleating agent |
August 9, 2005 |
| A method of nucleating a propylene homo- or copolymer, the method comprising contacting the propylene polymer with a semi-crystalline branched or coupled polymeric nucleating agent under nucleation conditions. In one embodiment, the propylene homopolymer is characterized as having .s |
| 6924342 |
Method of making interpolymers and products made therefrom |
August 2, 2005 |
| A polymerization process comprises contacting one or more olefinic comonomers in the presence of at least a high molecular weight catalyst and at least a low molecular weight catalyst in a single reactor, and effectuating the polymerization of the olefinic comonomers in the reactor t |
| 6906160 |
Isotactic propylene copolymer fibers, their preparation and use |
June 14, 2005 |
| Fibers comprising a propylene homopolymer or a copolymer of propylene and at least one of ethylene and one or more unsaturated comonomers exhibit desirable properties. The homopolymers are characterized as having .sup.13 C NMR peaks corresponding to a regio-error at about 14.6 and about |
| 6875816 |
High melt strength polymers and method of making same |
April 5, 2005 |
| A polymer composition comprises: (a) a high molecular weight, branched component; and (b) a low molecular weight, branched component. Some polymer compositions are characterized by a substantial absent of amyl or methyl branches and a melt strength (MS) that satisfies the following r |
| 6844399 |
Sulfonated substantially random interpolymers, blends therewith and articles made therefrom |
January 18, 2005 |
| Sulfonated substantially random interpolymers made from monomer components comprise from 1 to 65 mole percent of (a) at least one vinyl or vinylidene aromatic monomer, or (b) at least one hindered aliphatic or cycloaliphatic vinylidene monomer, or (c) a combination of at least one vinyl |
| 6780954 |
Elastic substantially linear ethylene polymers |
August 24, 2004 |
| Elastic ethylene polymers are disclosed which have processability similar to highly branched low density polyethylene (LDPE), but the strength and toughness of linear low density polyethylene (LLDPE). The polymers have processing indices (PI's) less than or equal to 70 percent of those o |
| 6696379 |
Supported modified alumoxane catalyst activator |
February 24, 2004 |
| A supported catalyst composition comprising: A1) a mixture of aluminum containing Lewis acids of the formulas: |
| 6538080 |
Gas phase polymerization of olefins |
March 25, 2003 |
| A gas phase fluidized bed process is described for producing ethylene polymers having improved processability and an MWD of less than about 2.9. Multiple reactors in series or parallel may be used to produce in-situ blended polymers. Each reactor can separately have a constrained geometr |
| 6534612 |
Elastic substantially linear ethylene polymers |
March 18, 2003 |
| Elastic ethylene polymers are disclosed which have processability similar to highly branched low density polyethylene (LDPE), but the strength and toughness of linear low density polyethylene (LDPE). The polymers have processing indices (PI's) less than or equal to 70 percent of those of |
| 6512049 |
Sulfonated substantially random interpolymers, blends therewith and articles made therefrom |
January 28, 2003 |
| Sulfonated substantially random interpolymers made from monomer components comprise from 1 to 65 mole percent of (a) at least one vinyl or vinylidene aromatic monomer, or (b) at least one hindered aliphatic or cycloaliphatic vinylidene monomer, or (c) a combination of at least one vinyl |
| 6506867 |
Elastic substantially linear ethylene polymers |
January 14, 2003 |
| Elastic ethylene polymers are disclosed which have processability similar to highly branched low density polyethylene (LDPE), but the strength and toughness of linear low density polyethylene (LLDPE). The polymers have processing indices (PI's) less than or equal to 70 percent of those o |
| 6479594 |
Sulfonated substantially random interpolymers, blends therewith and articles made therefrom |
November 12, 2002 |
| Sulfonated substantially random interpolymers made from monomer components comprise from 1 to 65 mole percent of (a) at least one vinyl or vinylidene aromatic monomer, or (b) at least one hindered aliphatic or cycloaliphatic vinylidene monomer, or (c) a combination of at least one vinyl |
| 6465384 |
Biscyclopentadienyl diene complexes |
October 15, 2002 |
| Biscyclopentadienyl, Group 4 transition metal complexes formed with conjugated dienes wherein the diene is bound to the transition metal either in the form of a .sigma.-complex or a .pi.-complex in combination with strong Lewis acids, Bronsted acid salts, carbenium ion salts, salts c |
| 6420507 |
Olefin polymers prepared with substituted indenyl containing metal complexes |
July 16, 2002 |
| The subject invention is directed to an olefin polymer produced by polymerizing at least one .alpha.-olefin in the presence of a Group 4 metal complex comprising an indenyl group substituted in the 2 or 3 position with at least one group selected from hydrocarbyl, perfluoro-substitut |
| 6136937 |
Elastic substantially linear ethylene polymers |
October 24, 2000 |
| Elastic ethylene polymers are disclosed which have processability similar to highly branched low density polyethylene (LDPE), but the strength and toughness of linear low density polyethylene (LLDPE). The polymers have processing indices (PI's) less than or equal to 70 percent of those o |
| 6107374 |
Asphalt modified with olefin/vinylidene aromatic monomer interpolymers |
August 22, 2000 |
| Bitumens can be blended with interpolymers prepared from least one olefin and at least one vinyl or vinylidene aromatic monomer and, optionally, at least one diene. The interpolymers prepared from monomers containing a diene are new compositions of matter. When the interpolymers prepared |
| 6087447 |
Blends of substantially random interpolymers with vinyl or vinylidene aromatic polymers |
July 11, 2000 |
| Blends of polymeric materials comprising (A) from about 1 to about 99 weight percent of at least one interpolymer containing (1) from about 1 to about 65 mole percent of (a) at least one vinylidene aromatic monomer, or (b) at least one hindered aliphatic vinylidene monomer, or (c) a |
| 6075077 |
Asphalt, bitumen, and adhesive compositions |
June 13, 2000 |
| The subject invention is directed to a composition comprising a polymer, comprising in polymerized form ethylene and at least one additional polymerizable monomer, prepared by polymerizing ethylene and said at least one addition polymerizable monomer in the presence of a catalyst com |
| 6074977 |
Olefin addition polymerization catalyst composition |
June 13, 2000 |
| Catalyst compositions that are highly tolerant of catalyst poisons comprising a cationic or zwitterionic Group 4 metal complex of the constrained geometry type and an organoaluminum hydrocarbyloxide compound according to the formula R.sup.1.sub.2 Al(OR.sup.2),wherein R.sup.1 and R.sup.2 |
| 6025448 |
Gas phase polymerization of olefins |
February 15, 2000 |
| A gas phase fluidized bed process is described for producing ethylene polymers having improved processability and an MWD of less than about 2.9. Multiple reactors in series or parallel may be used to produce in-situ blended polymers. Each reactor can separately have a constrained geometr |
| 6017842 |
Olefin polymerization catalyst composition comprising group 13 compound |
January 25, 2000 |
| Catalyst compositions that are highly tolerant of catalyst poisons comprising a catalytic derivative of a Group 4 metallocene metal complex and an Group 13 metal compound according to the formula R.sup.1.sub.2 M"(NR.sup.2.sub.2),wherein R.sup.1 and R.sup.2 independently each occurrence i |
| 6015868 |
Substituted indenyl containing metal complexes and olefin polymerization process |
January 18, 2000 |
| Group 4 metal complexes comprising an indenyl group substituted in the 2 or 3 position with at least one group selected from hydrocarbyl, fluoro-substituted hydrocarbyl, hydrocarbyloxy-substituted hydrocarbyl, dialkylamino-substituted hydroacrbyl, silyl, germyl and mixtures thereof, |
| 6013819 |
Reduced oxidaton state group 4 metal complexes, addition polymerization catalysts, and polymeriz |
January 11, 2000 |
| Metal complexes having constrained geometry and a process for preparation thereof, addition polymerization catalysts formed therefrom, processes for preparation of such addition polymerization catalysts, methods of use, and novel polymers formed thereby, including ElPE resins and pseudo- |
| 5986028 |
Elastic substantially linear ethlene polymers |
November 16, 1999 |
| A continuous polymerization process of preparing ethylene polymers containing less than about 20 ppm aluminum, and having processability similar to highly branched low density polyethylene (LDPE), but the strength and toughness of linear low density polyethylene (LLDPE). The polymers |
| 5972822 |
Biscyclopentadienyldiene complex containing addition polymerization catalysts |
October 26, 1999 |
| Catalysts for polymerizing olefins, diolefins and/or acetylenically unsaturated monomers comprising biscyclopentadienyl, Group 4 transition metal complexes formed with conjugated dienes wherein the diene is bound to the transition metal either in the form of a .sigma.-complex or a .p |
| 5883204 |
Solution polymerization process with dispersed catalyst activator |
March 16, 1999 |
| A dispersible ionic catalyst activator, comprising an insoluble substrate material having a correlated settling rate less than 0.03 cm/sec, and from 0.001 to 10 mmol/g of an ionic catalyst activator deposited thereon which is particularly adapted for use in a continuous, solution polymer |
| 5783638 |
Elastic substantially linear ethylene polymers |
July 21, 1998 |
| Elastic ethylene polymers are disclosed which have processability similar to highly branched low density polyethylene (LDPE), but the strength and toughness of linear low density polyethylene (LLDPE). The polymers have processing indices (PI's) less than or equal to 70 percent of those o |
| 5770538 |
Group 4 metal diene complexes and addition polymerization catalysts therefrom |
June 23, 1998 |
| Novel Group 4 metal complexes containing one and only one cyclic delocalized, anionic, .pi.-bonded group wherein the metal is in the +4 formal oxidation state and having a bridged ligand structure, also referred to as constrained geometry complexes and a conjugated diene divalent ani |
| 5624878 |
Titanium (II) or zirconium (II) complexes and addition polymerization catalysts therefrom |
April 29, 1997 |
| Novel catalytic derivatives of titanium or zirconium complexes containing one and only one cyclic delocalized, anionic, .PI.-bonded group wherein the metal is in the +2 formal oxidation state and having a bridged ligand structure and an activating cocatalyst are useful as catalysts for |
| 5616664 |
Polymerization process with biscyclopentadienyl diene complex containing catalysts |
April 1, 1997 |
| Olefins are polymerized by the use of catalysts comprising biscyclopentadienyl, Group 4 transition metal complexes formed with conjugated dienes wherein the diene is bound to the transition metal either in the form of a .sigma.-complex or a .pi.-complex in combination with activating |
| 5556928 |
Titanium (II) or Zirconium (II) complexes and addition polymerization catalysts therefrom |
September 17, 1996 |
| A process for polymerizing olefins, diolefins and/or acetylenically unsaturated monomers using novel catalyst compositions comprising titanium or zirconium complexes containing one and only one cyclic delocalized, anionic, .pi.-bonded group wherein the metal is in the +2 formal oxidation |
| 5539068 |
Group 4, metal-conjugated diene metallocyclopentene complexes, and addition polymerization catal |
July 23, 1996 |
| Novel Group 4 metal complexes containing one and only one cyclic delocalized, anionic, .pi.-bonded group wherein the metal is in the +4 formal oxidation state and having a bridged ligand structure, also referred to as constrained geometry complexes and a conjugated diene divalent ani |
| 5486632 |
Group 4 metal diene complexes and addition polymerization catalysts therefrom |
January 23, 1996 |
| Novel Group 4 metal complexes containing one and only one cyclic delocalized, anionic, .pi.-bonded group wherein the metal is in the +4 formal oxidation state and having a bridged ligand structure, also referred to as constrained geometry complexes and a conjugated diene divalent ani |
| 5460818 |
Compatibilized blend of olefinic polymers and monovinylidene aromatic polymers |
October 24, 1995 |
| A polymer blend composition comprising:(a) from 0.5 to 99 percent by weight, based on the total weight of (a), (b), and (c), of an aliphatic .alpha.-olefin homopolymer or interpolymer, or an interpolymer of an .alpha.-olefin and a non-aromatic monomer interpolymerizable therewith;(b) fro |
