Patents by Inventor Samuel David Arthur
Samuel David Arthur 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: 6713560Abstract: A process for preparing a heat curable powder coating composition comprises exposing a powder comprising a carboxyl-functional polymer and a polyepoxy compound to an amine selected from the group consisting of organic amines and ammonia under mild conditions, particularly temperatures of between −30° C. and 50° C.Type: GrantFiled: June 4, 2002Date of Patent: March 30, 2004Assignee: E. I. du Pont de Nemours and CompanyInventor: Samuel David Arthur
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Patent number: 6689910Abstract: Olefins containing selected functional groups such as silyl, ether and alkenyl, and often containing a blocking group, may be copolymerized with unsubstituted olefins such as ethylene and propylene in the presence of certain coordination compounds of nickel or palladium. The resulting polymers are useful as molding resins, elastomers, in adhesives and for films.Type: GrantFiled: May 12, 2003Date of Patent: February 10, 2004Assignee: E. I. du Pont de Nemours and CompanyInventors: Lin Wang, Samuel David Arthur, Elizabeth Forrester McCord, Yueli Wang, Peter Arnold Morken, Lynda Kaye Johnson
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Publication number: 20030212225Abstract: Olefins containing selected functional groups such as silyl, ether and alkenyl, and often containing a blocking group, may be copolymerized with unsubstituted olefins such as ethylene and propylene in the presence of certain coordination compounds of nickel or palladium. The resulting polymers are useful as molding resins, elastomers, in adhesives and for films.Type: ApplicationFiled: May 12, 2003Publication date: November 13, 2003Inventors: Lin Wang, Samuel David Arthur, Elizabeth Forrester McCord, Yueli Wang, Peter Arnold Morken, Lynda Kaye Johnson
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Publication number: 20030171508Abstract: Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-catalysts. Since some of the polymerizations exhibit some characteristics of living polymerizations, block copolymers can be readily made. Many of the polymers produced are often novel, particularly in regard to their microstructure, which gives some of them unusual properties. Numerous novel catalysts are disclosed, as well as some novel processes for making them. The polymers made are useful as elastomers, molding resins, in adhesives, etc.Type: ApplicationFiled: June 22, 2001Publication date: September 11, 2003Inventors: Maurice S. Brookhart, Lynda Kaye Johnson, Christopher Moore Killian, Samuel David Arthur, Jerald Feldman, Elizabeth Forrester McCord, Stephan James McLain, Kristina Ann Kreutzer, Alison Margaret Anne Bennett, Edward Bryan Coughlin, Steven Dale Ittel, Anju Parthasarathy, Daniel Joseph Tempel
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Patent number: 6605679Abstract: Olefins containing selected functional groups such as silyl, ether and alkenyl, and often containing a blocking group, may be copolymerized with unsubstituted olefins such as ethylene and propylene in the presence of certain coordination compounds of nickel or palladium. The resulting polymers are useful as molding resins, elastomers, in adhesives and for films.Type: GrantFiled: February 1, 2000Date of Patent: August 12, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Lin Wang, Samuel David Arthur, Elizabeth Forrester McCord, Yueli Wang, Peter Arnold Morken, Lynda Kaye Johnson
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Patent number: 6521724Abstract: Processes for the polymerization of olefins in which late transition metal complexes, such as nickel, iron, cobalt and palladium complexes, are used as a polymerization catalyst have improved polymer productivity when oxidizing agents are present during at least a portion of the polymerization. The polymers produced are useful as elastomers, for packaging films, and molding resins.Type: GrantFiled: March 7, 2001Date of Patent: February 18, 2003Assignees: E. I. du Pont de Nemours and Company, Basell Technology Company B.V.Inventors: Samuel David Arthur, Mark F. Teasley, Dewey Lynn Kerbow, Ofelia Fusco, Tiziano Dall 'Occo, Giampiero Morini
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Publication number: 20030004270Abstract: The present invention relates to the catalysis of the curing rate of epoxy hybrid powder coatings by organic amines or ammonia under mild conditions.Type: ApplicationFiled: June 4, 2002Publication date: January 2, 2003Inventor: Samuel David Arthur
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Patent number: 6495646Abstract: Polyolefins with unique highly branched structures, and which have unusually low Mark-Houwink constants are described. They are useful for instance as elastomers, viscosity index modifiers and lubricating oil bases.Type: GrantFiled: February 29, 2000Date of Patent: December 17, 2002Assignees: E. I. du Pont de Nemours and Company, University of North Carolina at Chapel HillInventors: Samuel David Arthur, Maurice S. Brookhart, III, Patricia Metzger Cotts, Zhibin Guan, Lynda Kaye Johnson, Christopher Moore Killian, Elizabeth Forrester McCord, Stephan James McLain
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Patent number: 6482907Abstract: Olefins containing selected functional groups such as silyl, ether and alkenyl, and often containing a blocking group, may be copolymerized with unsubstituted olefins such as ethylene and propylene in the presence of certain coordination compounds of nickel or palladium. The resulting polymers are useful as molding resins, elastomers, in adhesives and for films.Type: GrantFiled: February 1, 2000Date of Patent: November 19, 2002Assignee: E.I. du Pont de Nemours and CompanyInventors: Lin Wang, Samuel David Arthur, Elizabeth Forrester McCord, Yueli Wang, Peter Arnold Morken, Lynda Kaye Johnson
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Patent number: 6372869Abstract: The molecular weight of polyolefins produced using selected late transition metal complexes of bidentate ligands may be lowered by carrying out the polymerization in the presence of hydrogen, a selected silane, or CBr4.Type: GrantFiled: May 24, 1999Date of Patent: April 16, 2002Assignee: E. I. du Pont de Nemours and CompanyInventors: Samuel David Arthur, Stephan James McLain
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Publication number: 20010044510Abstract: Processes for the polymerization of olefins in which late transition metal complexes, such as nickel, iron, cobalt and palladium complexes, are used as a polymerization catalyst have improved polymer productivity when oxidizing agents are present during at least a portion of the polymerization. The polymers produced are useful as elastomers, for packaging films, and molding resins.Type: ApplicationFiled: March 7, 2001Publication date: November 22, 2001Inventors: Samuel David Arthur, Mark F. Teasley, Dewey Lynn Kerbow, Ofelia Fusco, Tiziano Dall' Occo, Giampiero Morini
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Patent number: 6310163Abstract: Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-catalysts. Since some of the polymerizations exhibit some characteristics of living polymerizations, block copolymers can be readily made. Many of the polymers produced are often novel, particularly in regard to their microstructure which gives some of them unusual properties. Numerous novel catalysts are disclosed, as well as some novel processes for making them. The polymers made are useful as elastomers, molding resins, in adhesives, etc.Type: GrantFiled: July 10, 1997Date of Patent: October 30, 2001Assignee: E. I. du Pont de Nemours and CompanyInventors: Maurice S. Brookhart, Lynda Kaye Johnson, Christopher Moore Killian, Samuel David Arthur, Jerald Feldman, Elizabeth Forrester McCord, Stephan James McLain, Kristina Ann Kreutzer, Alison Margaret Anne Bennett, Edward Bryan Coughlin, Steven Dale Ittel, Anju Parthasarathy, Daniel Joseph Tempel
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Patent number: 6310153Abstract: Transition metal imine complexes can be prepared by reacting the imine precursors, a carbonyl compound and a primary amine, in the presence of a selected transition metal compound. The complexes may be used as catalysts for olefin polymerization.Type: GrantFiled: February 7, 2001Date of Patent: October 30, 2001Assignee: E. I. du Pont de Nemours and CompanyInventors: Steven Dale Ittel, Samuel David Arthur, Joel David Citron
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Patent number: 6252022Abstract: The molecular weight of polyolefins produced using iron or cobalt complexes of 2,6-pyridinecarboxaldehyde diimines or a 2,6-diacylpyridine diimines as polymerization catalysts may be lowered by carrying out the polymerization in the presence of hydrogen.Type: GrantFiled: May 21, 1999Date of Patent: June 26, 2001Assignee: E. I. du Pont de Nemours and CompanyInventors: Samuel David Arthur, Joel David Citron
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Patent number: 6232259Abstract: Transition metal imine complexes can be prepared by reacting the imine precursors, a carbonyl compound and a primary amine, in the presence of a selected transition metal compound. The complexes may be used as catalysts for olefin polymerization.Type: GrantFiled: March 29, 1999Date of Patent: May 15, 2001Assignee: E. I. du Pont de Nemours and CompanyInventors: Steven Dale Ittel, Samuel David Arthur, Joel David Citron
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Patent number: 6114483Abstract: Mixtures of different polyolefins or branched polyolefins may be made by direct, preferably simultaneous, polymerization of one or more polymerizable olefins using two or more transition metal containing active polymerization catalyst systems, one of which contains preferably late transition metals complexed to selected ligands. The polyolefin products may have polymers that vary in molecular weight, molecular weight distribution, crystallinity, or other factors, and are useful as molding resins and for films.Type: GrantFiled: August 25, 1998Date of Patent: September 5, 2000Assignee: E. I. du Pont de Nemours and CompanyInventors: Edward Bryan Coughlin, Samuel David Arthur, Steven Dale Ittel
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Patent number: 6034259Abstract: Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-catalysts. Since some of the polymerizations exhibit some characteristics of living polymerizations, block copolymers can be readily made. Many of the polymers produced are often novel, particularly in regard to their microstructure, which gives some of them unusual properties. Numerous novel catalysts are disclosed, as well as some novel processes for making them. The polymers made are useful as elastomers, molding resins, in adhesives, etc. Also described herein is the synthesis of linear .alpha.-olefins by the oligomerization of ethylene using as a catalyst system a combination a nickel compound having a selected .alpha.-diimine ligand and a selected Lewis or Bronsted acid, or by contacting selected .alpha.Type: GrantFiled: July 10, 1997Date of Patent: March 7, 2000Assignees: E. I. du Pont de Nemours and Company, University of North Carolina Chapel HillInventors: Maurice S. Brookhart, Lynda Kaye Johnson, Christopher Moore Killian, Samuel David Arthur, Jerald Feldman, Stephan James McLain, Kristina Ann Kreutzer, Alison Margaret Anne Bennett, Edward Bryan Coughlin, Steven Dale Ittel, Anju Parthasarathy, Daniel Joseph Tempel
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Patent number: 5891963Abstract: Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-catalysts. Since some of the polymerizations exhibit some characteristics of living polymerizations, block copolymers can be readily made. Many of the polymers produced are often novel, particularly in regard to their microsructure, which give some of them unusual properties. Numerous novel catalysts are disclosed, as well as some novel processes for making them. The polymers made are useful as elastomers, molding resins, in adhesives, etc. Also described herein is the synthesis of linear .alpha.-olefins by the oligomerization of ethylene using as a catalyst system a combination a nickel compound having a selected .alpha.-diimine ligand and a selected Lewis or Bronsted acid, or by contacting selected .alpha.Type: GrantFiled: July 10, 1997Date of Patent: April 6, 1999Assignees: E. I. du Pont de Nemours and Company, University of North CarolinaInventors: Maurice S. Brookhart, Lynda Kaye Johnson, Christopher Moore Killian, Samuel David Arthur, Elizabeth Forrester McCord, Stephan James McLain
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Patent number: 5886224Abstract: Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-catalysts. Since some of the polymerizations exhibit some characteristics of living polymerizations, block copolymers can be readily made. Many of the polymers produced are often novel, particularly in regard to their microstructure, which gives some of them unusual properties. Numerous novel catalysts are disclosed, as well as some novel processes for making them. The polymers made are useful as elastomers, molding resins, in adhesives, etc. Also described herein is the synthesis of linear .alpha.-olefins by the oligomerization of ethylene using as a catalyst system a combination a nickel compound having a selected .alpha.-diimine ligand and a selected Lewis or Bronsted acid, or by contacting selected .alpha.Type: GrantFiled: July 10, 1997Date of Patent: March 23, 1999Assignees: E. I. du Pont de Nemours and Company, University of North CarolinaInventors: Maurice S. Brookhart, Lynda Kaye Johnson, Samuel David Arthur, Jerald Feldman, Kristina Ann Kreutzer, Alison Margaret Anne Bennett, Edward Bryan Coughlin, Steven Dale Ittel, Anju Parthasarathy, Daniel Joseph Tempel
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Patent number: 5866663Abstract: Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-catalysts. Since some of the polymerizations exhibit some characteristics of living polymerizations, block copolymers can be readily made. Many of the polymers produced are often novel, particularly in regard to their microstructure, which gives some of them unusual properties. Numerous novel catalysts are disclosed, as well as some novel processes for making them. The polymers made are useful as elastomers, molding resins, in adhesives, etc. Also described herein is the synthesis of linear .alpha.-olefins by the oligomerization of ethylene using as a catalyst system a combination a nickel compound having a selected .alpha.-diimine ligand and a selected Lewis or Bronsted acid, or by contacting selected .alpha.Type: GrantFiled: July 10, 1997Date of Patent: February 2, 1999Assignees: E. I. du Pont de Nemours and Company, University of North CarolinaInventors: Maurice S. Brookhart, Lynda Kaye Johnson, Christopher Moore Killian, Samuel David Arthur, Jerald Feldman, Elizabeth Forrester McCord, Stephan James McLain, Kristina Ann Kreutzer, Alison Margaret Anne Bennett, Edward Bryan Coughlin, Steven Dale Ittel, Anju Parthasarathy, Lin Wang, Zhen-Yu Yang