Patents by Inventor Rex E. Murray
Rex E. Murray has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6340730Abstract: This invention relates to a process to polymerize olefins comprising reacting olefins with a catalyst system comprising an activator, a metallocene and a second metal compound based on bidentate ligands containing heterocycle moieties.Type: GrantFiled: December 6, 1999Date of Patent: January 22, 2002Assignee: Univation Technologies, LLCInventors: Rex E. Murray, Simon Mawson, John F. Szul, Kersten Anne Erickson, Tae Hoon Kwack, Frederick J. Karol, David James Schreck
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Patent number: 6320002Abstract: This invention relates to a process to polymerize olefins comprising contacting an olefin with a composition comprising the product of the combination of an activator and a transition metal compound provided that if the process occurs in the slurry phase then the activator and the transition metal compound are allowed to react for at least fifteen minutes before being contacted with the olefin.Type: GrantFiled: December 18, 1998Date of Patent: November 20, 2001Assignee: Univation Technologies, LLCInventors: Rex E. Murray, Simon Mawson, Clark C. Williams, James D. Schreck
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Publication number: 20010034297Abstract: This invention relates to an olefin polymerization catalyst composition comprising the product of the combination of at least one activator and at least two different transition metal compounds each of which is represented by the formula:Type: ApplicationFiled: April 26, 2001Publication date: October 25, 2001Inventors: Rex E. Murray, Simon Mawson, Clark C. Williams, D. James Schreck
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Publication number: 20010031697Abstract: This invention relates to an olefin polymerization catalyst composition comprising the product of the combination of an activator, an additive and a transition metal compound which is represented by the formulae:Type: ApplicationFiled: May 29, 2001Publication date: October 18, 2001Inventors: Rex E. Murray, Simon Mawson
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Patent number: 6303719Abstract: This invention relates to an olefin polymerization catalyst composition comprising the product of the combination of an activator, an additive and a transition metal compound which is represented by the formulae: ((Z)XAt(YJ))qMQn where M is a metal selected from Group 3 to 13 or lanthanide and actinide series of the Periodic Table of Elements; Q is bonded to M and each Q is a monovalent, divalent or trivalent anion; X and Y are bonded to M; X and Y are independently carbon or a heteroatom, provided that at least one of X and Y is a heteroatom, preferably both X and Y are heteroatoms; Y is contained in a heterocyclic ring J, where J comprises from 2 to 50 non-hydrogen atoms, Z is bonded to X, where Z comprises 1 to 50 non-hydrogen atoms; t is 0 or 1; when t is 1, A is a bridging group joined to at least one of X, Y or J, q is 1 or 2; n is the oxidation state of M minus q if Q is a monovalent anion, n is (the oxidation state of M−q)/2, if Q is a bivalent anion or n is (the oxidation state of M−q)/Type: GrantFiled: December 18, 1998Date of Patent: October 16, 2001Assignee: Univation TechnologiesInventors: Rex E. Murray, Simon Mawson
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Patent number: 6268447Abstract: This invention relates to an olefin polymerization catalyst composition comprising the product of the combination of at least one activator and at least two different transition metal compounds each of which is represented by the formula: ((Z)XAt(YJ))qMQn (I) where M is a metal selected from Group 3 to 13 or lanthanide and actinide series of the Periodic Table of Elements; Q is bonded to M and each Q is a monovalent, divalent or trivalent anion; X and Y are bonded to M; X and Y are independently C or a heteroatom, provided that at least one of X and Y is a heteroatom and Y is contained in a heterocyclic ring J, where J comprises from 2 to 50 non-hydrogen atoms; Z is bonded to X, where Z comprises 1 to 50 non-hydrogen atoms; t is 0 or 1; when t is 1, A is a bridging group joined to at least one of X, Y or J; q is 1 or 2; n is the oxidation state of M minus q if Q is a monovalent anion, n is (the oxidation state of M−q)/2, if Q is a bivalent anion or n is (the oxidation state of M−q)/3Type: GrantFiled: December 18, 1998Date of Patent: July 31, 2001Assignee: Univation Technologies, L.L.C.Inventors: Rex E. Murray, Simon Mawson, Clark C. Williams, D. James Schreck
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Patent number: 6265513Abstract: Polyolefin wherein A) the melt indices of Fractions 1, 4 and 6 of the polyolefin do not vary by more than 20% relative to the mean of Fractions 1, 4 and 6; and/or B) the percent crystallinity of Fractions 1, 4 and 6 of the polyolefin do not vary by more than 6% relative to the mean of Fractions 1, 4 and 6; and/or C) the Mw/Mn of Fractions 1, 4 and 6 of the polyolefin do not vary by more than 20% relative to the mean of Fractions 1, 4 and 6; and/or D) Fraction 1 has an aspect ratio of 0.5-1.5, fraction 4 has an aspect ratio of 1.2 to 4, Fraction 6 has an aspect ratio of about 1.75 to 5 provided that the aspect ratios of the Fractions differ by at least 0.Type: GrantFiled: December 18, 1998Date of Patent: July 24, 2001Assignee: Univation Technologies, LLCInventors: Rex E. Murray, Simon Mawson, Clark C. Williams, James D. Schreck
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Patent number: 5430179Abstract: The present invention relates to a homogeneous, ruthenium catalyzed liquid phase process for vinyl ester synthesis. It has been found that by adding at least one selectivity enhancer to the reaction system, selectivity to the addition reaction is improved while byproduct formation is inhibited. Useful selectivity enhancers include non-reacting heteroatom containing molecules that are believed to act by weakly coordinating to the ruthenium/phosphine ligand complex.Type: GrantFiled: July 28, 1994Date of Patent: July 4, 1995Assignee: Union Carbide Chemicals & Plastics TechnologyInventors: David M. Lincoln, Rex E. Murray
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Patent number: 5412038Abstract: A process for crosslinking a polymer containing hydroxyl groups which process comprises:(a) forming a mixture of said polymer and crosslinking amount of a poly(alpha, beta-alkenylcarboxylate), and(b) maintaining the mixture at conditions under which the polymer cures by reaction of the hydroxyl groups of the polymer with the poly(alpha, beta-alkenylcarboxylate) to produce a crosslinked polymer.Type: GrantFiled: June 28, 1993Date of Patent: May 2, 1995Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Rex E. Murray, Robert F. Eaton, Thomas A. Upshaw, James W. Taylor, David R. Bassett, David M. Lincoln
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Patent number: 5210207Abstract: The invention provides an improved process for the preparation of a vinyl derivative of a Bronsted acid, wherein a vinyl derivative of a first Bronsted acid is subjected to transvinylation by reactive distillation with a second Bronsted acid.Type: GrantFiled: January 31, 1991Date of Patent: May 11, 1993Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Morteza Mokhtarzadeh, Rex E. Murray
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Patent number: 5155253Abstract: A process for the transvinylation of a vinyl derivative of a Bronsted acid with a different Bronsted acid which comprises providing a liquid phase mixture containing said vinyl derivative and said Bronsted acid in the presence of a ruthenium compound at a temperature at which transvinylation occurs and recovering as a product of transvinylation the vinyl derivative of the different Bronsted acid. The process is most favorably employed using carboxylic acids to make vinyl esters of carboxylic acids.Type: GrantFiled: March 28, 1991Date of Patent: October 13, 1992Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventor: Rex E. Murray
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Patent number: 4981973Abstract: A process for the transvinylation of a vinyl derivative of a Bronsted acid with a different Bronsted acid which comprises providing a liquid phase mixture containing said vinyl derivative and said Bronsted acid in the presence of a ruthenium compound at a temperature at which transvinylation occurs and recovering as a product of transvinylation the vinyl derivative of the different Bronsted acid. The process is most favorably employed using carboxylic acids to make vinyl esters of carboxylic acids.Type: GrantFiled: June 30, 1988Date of Patent: January 1, 1991Assignee: Union Carbide Chemicals and Plastics Company, Inc.Inventor: Rex E. Murray
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Patent number: 4822915Abstract: An oligomerization or cooligomerization process comprising passing ethylene or a mixture of ethylene and propylene in contact with a catalyst, in the liquid phase.Type: GrantFiled: May 26, 1987Date of Patent: April 18, 1989Assignee: Union Carbide CorporationInventor: Rex E. Murray
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Patent number: 4789753Abstract: Transition metal-diorganophosphite complex catalyzed carbonylation processes, especially hydroformylation, as well as transition metal-diorganophosphite ligand complex compositions, diorganophosphite ligands and transition metal-diorganophosphite catalysts.Type: GrantFiled: October 13, 1987Date of Patent: December 6, 1988Assignee: Union Carbide CorporationInventors: Ernst Billig, Anthony G. Abatjoglou, David R. Bryant, Rex E. Murray, John M. Maher
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Patent number: 4737588Abstract: Transition metal-diorganophosphite complex catalyzed carbonylation processes, especially hydroformylation, as well as transition metal-diorganophosphite ligand complex compositions, diorganophosphite ligands and transition metal-diorganophosphite catalysts.Type: GrantFiled: March 19, 1986Date of Patent: April 12, 1988Assignee: Union Carbide CorporationInventors: Ernst Billig, Anthony G. Abatjoglou, David R. Bryant, Rex E. Murray, John M. Maher
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Patent number: 4717775Abstract: Transition metal-diorganophosphite complex catalyzed carbonylation processes, especially hydroformylation, as well as transition metal-diorganophosphite ligand complex compositions, diorganophosphite ligands and transition metal-diorganophosphite catalysts.Type: GrantFiled: May 20, 1986Date of Patent: January 5, 1988Assignee: Union Carbide CorporationInventors: Ernst Billig, Anthony G. Abatjoglou, David R. Bryant, Rex E. Murray, John M. Maher
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Patent number: 4716138Abstract: An oligomerization or cooligomerization process comprising passing ethylene or a mixture of ethylene and propylene in contact with a catalyst, in the liquid phase, said catalyst comprising the reaction product of (i) a transition metal compound wherein the transition metal is selected from the group consisting of nickel, chromium, cobalt, iron, and copper, and mixtures thereof and (ii) at least one organophosphorus sulfonate ligand.Type: GrantFiled: December 12, 1986Date of Patent: December 29, 1987Assignee: Union Carbide CorporationInventor: Rex E. Murray
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Patent number: 4689437Abstract: An olefin oligomerization/cooligomerization process with a catalyst comprising the reaction product of (1) a transition metal compound selected from the metals Ni, Co, Cr, Fe, Cu, (2) a catalyst activator capable of donating a hydride, alkyl, alkenyl or aryl group when the transition metal has the oxidation state of O or the transition metal compound does not have a hydride, alkyl, alkenyl or aryl group, and (3a) an organophosphorus sulfonate ligand containing one benzene ring with trivalent phosphorus P(III) group and SO.sub.3 M group at ortho-positions, or one benzene ring with CH.sub.2 --P(III) and CH.sub.2 --SO.sub.3 M groups at ortho-positions, or a bridging or fused aromatic ring system with P(III) or CH.sub.2 --P(III) group and SO.sub.3 M or CH.sub.2 --SO.sub.3 M group at adjacent positions on different rings, or any aromatic ring having the P(III) and SO.sub.3 M groups at adjacent positions, where M is H, Group IA or Group IIA metals, quarternary ammonium or phosphonium (NR.sub.4, PR.sub.Type: GrantFiled: July 21, 1986Date of Patent: August 25, 1987Assignee: Union Carbide CorporationInventor: Rex E. Murray
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Patent number: 4668823Abstract: A process for the selective production of bulky alkyldiarylphosphines and unsymmetrical dialkylarylphosphines comprising reacting a first Grignard reagent having a bulky alkyl group with an aryldichlorophosphine and thereafter and without isolating the resulting bulky alkylarylchlorophosphine intermediate, reacting said intermediate with a second Grignard reagent having a different, less bullky alkyl group or an aryl group to provide the product phosphine.Type: GrantFiled: December 30, 1983Date of Patent: May 26, 1987Assignee: Union Carbide CorporationInventor: Rex E. Murray
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Patent number: 4599206Abstract: Transition metal-diorganophosphite complex catalyzed carbonylation processes, especially hydroformylation, as well as transition metal-diorganophosphite ligand complex compositions, diorganophosphite ligands and transition metal-diorganophosphite catalysts.Type: GrantFiled: December 28, 1984Date of Patent: July 8, 1986Assignee: Union Carbide CorporationInventors: Ernst Billig, Anthony G. Abatjoglou, David R. Bryant, Rex E. Murray, John M. Mather