Patents by Inventor Steven A. Best

Steven A. Best 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).

  • Polymerization catalyst, production and use
    Patent number: 4866144
    Abstract: Ethylene and alpha-olefins are homopolymerized or copolymerized with another olefin monomer in the presence of a catalyst system comprising an organo metal cocatalyst and a titanium-containing catalyst component, said titanium-containing catalyst component being obtained by reacting together a porous particulate material, an organic magnesium compound, an oxygen-containing compound, an acyl halide, titanium tetrachloride and Cl.sub.2, Br.sub.2 or an interhalogen compound and treating the solids with an aluminum alkyl.
    Type: Grant
    Filed: April 26, 1988
    Date of Patent: September 12, 1989
    Assignee: Exxon Research & Engineering Company
    Inventors: Steven A. Best, Bradley P. Etherton, Malcolm J. Kaus
  • Polymerization catalyst, production and use (P-1063)
    Patent number: 4766100
    Abstract: Ethylene and alpha-olefins are homopolymerized or copolymerized with another olefin monomer in the presence of a catalyst system comprising an organo metal cocatalyst and a titanium-containing catalyst component, said titanium-containing catalyst component being obtained by reacting together a porous particulate material, an organic magnesium compound, an oxygen-containing compound, an acyl halide, titanium tetrachloride and Cl.sub.2, Br.sub.2 or an interhalogen compound and treating the solids with an organometallic compound of a Group IIa, IIb or IIIa metal.
    Type: Grant
    Filed: July 5, 1985
    Date of Patent: August 23, 1988
    Assignee: Exxon Research & Engineering Co.
    Inventors: Steven A. Best, Bradley P. Etherton, Malcolm J. Kaus
  • Polymerization catalyst, production and use
    Patent number: 4657997
    Abstract: A vanadium-containing catalyst component useful for the polymerization of olefins to polyolefins having a high molecular weight and a broad molecular weight distribution comprising polymerizing the polyolefins in the presence of a catalyst comprising (A) a vanadium-containing catalyst component obtained by contacting an inert support material with a dihydrocarbyl magnesium compound, optionally an oxygen-containing compound, a vanadium compound, a Group III metal halide, and (B) an aluminum alkyl cocatalyst.
    Type: Grant
    Filed: December 9, 1985
    Date of Patent: April 14, 1987
    Assignee: Exxon Research & Engineering Co.
    Inventor: Steven A. Best
  • Polymerization catalyst, production and use
    Patent number: 4640907
    Abstract: Ethylene and alpha-olefins are homopolymerized or copolymerized with another olefin monomer in the presence of a catalyst system comprising an organo metal cocatalyst and a titanium-containing catalyst component, said titanium-containing catalyst component being obtained by reacting together a porous particulate material, an organic magnesium compound, an oxygen containing compound, an acyl halide and titanium tetrachloride and a Group IIIa hydrocarbyl metal dihalide and prepolymerizing the solid with a minor amount of ethylene.
    Type: Grant
    Filed: August 6, 1984
    Date of Patent: February 3, 1987
    Assignee: Exxon Research & Engineering Co.
    Inventor: Steven A. Best
  • Polymerization catalyst, production and use
    Patent number: 4639428
    Abstract: Ethylene and alpha-olefins are homopolymerized or copolymerized with another olefin monomer in the presence of a catalyst system comprising an organo metal cocatalyst and a titanium-containing catalyst component, said titanium-containing catalyst component being obtained by reacting together a porous particulate material, an organic magnesium compound, an oxygen containing compound, an acyl halide and titanium tetrachloride, a Group IIIa hydrocarbyl metal dihalide and Cl.sub.2, Br.sub.2, an interhalogen or mixtures thereof.
    Type: Grant
    Filed: August 6, 1984
    Date of Patent: January 27, 1987
    Assignee: Exxon Research & Engineering Co.
    Inventor: Steven A. Best
  • Polymerization catalyst, production and use
    Patent number: 4634749
    Abstract: Ethylene and alpha-olefins are homopolymerized or copolymerized with another olefin monomer in the presence of a catalyst system comprising an organo metal cocatalyst and a titanium containing catalyst component, said titanium-containing catalyst component being obtained by reacting together a porous particulate material, an organic magnesium compound, an oxygen containing compound, an acyl halide and titanium tetrachloride and a Group IIIa hydrocarbyl metal dihalide.
    Type: Grant
    Filed: September 18, 1985
    Date of Patent: January 6, 1987
    Assignee: Exxon Research & Engineering Co.
    Inventor: Steven A. Best
  • Polymerization catalyst, production and use
    Patent number: 4634747
    Abstract: Ethylene and alpha-olefins are homopolymerized or copolymerized with another olefin monomer in the presence of a catalyst system comprising an organo metal cocatalyst and a titanium-containing catalyst component, said titanium-containing catalyst component being obtained by reacting together a porous particulate material, an organic magnesium compound, an oxygen containing compound, an acyl halide and titanium tetrachloride and Cl.sub.2, Br.sub.2 or an interhalogen.
    Type: Grant
    Filed: September 18, 1985
    Date of Patent: January 6, 1987
    Assignee: Exxon Research & Engineering Co.
    Inventor: Steven A. Best
  • Polymerization catalyst, production and use
    Patent number: 4634748
    Abstract: Ethylene and alpha-olefins are homopolymerized or copolymerized with another olefin monomer in the presence of a catalyst system comprising an organo metal cocatalyst and titanium-containing catalyst component, said titanium-containing catalyst component being obtained by reacting together a porous particulate material, an organic magnesium compound, optionally an oxygen containing compound, titanium tetrachloride and a Group IIIa metal hydrocarbyl dihalide.
    Type: Grant
    Filed: September 18, 1985
    Date of Patent: January 6, 1987
    Assignee: Exxon Research & Engineering Co.
    Inventor: Steven A. Best
  • Polymerization catalyst, production and use
    Patent number: 4634751
    Abstract: A vanadium containing catalyst component useful for polymerizing olefins to polyolefins having a high molecular weight and broad molecular weight distribution comprising polymerizing the olefins in the presence of a catalyst comprising (a) a vanadium containing catalyst component obtained by contacting an inert support material with an organoaluminum compound, an acyl halide and a vanadium compound, and (b) an aluminum alkyl cocatalyst.
    Type: Grant
    Filed: December 9, 1985
    Date of Patent: January 6, 1987
    Assignee: Exxon Research & Engineering Co.
    Inventor: Steven A. Best
  • Polymerization catalyst, production and use
    Patent number: 4634750
    Abstract: A vanadium-containing catalyst component useful for the polymerization of olefins to polyolefins having a high molecular weight and a broad molecular weight distribution comprising polymerizing the polyolefins in the presence of a catalyst comprising (A) a vanadium-containing catalyst component obtained by contacting an inert support material with a dihydrocarbyl magnesium compound, optionally an oxygen-containing compound, a vanadium compound, a Group III metal halide, and (B) an aluminum alkyl cocatalyst.
    Type: Grant
    Filed: December 9, 1985
    Date of Patent: January 6, 1987
    Assignee: Exxon Research & Engineering Co.
    Inventor: Steven A. Best
  • Polymerization catalyst, production and use
    Patent number: 4626520
    Abstract: Ethylene and alpha-olefins are homopolymerized or copolymerized with another olefin monomer in the presence of a catalyst system comprising an organo metal cocatalyst and a titanium-containing catalyst component, said titanium-containing catalyst component being obtained by reacting together a porous particulate material, an organic magnesium compound, a halogen agent other than Cl.sub.2, Br.sub.2 and an interhalogen compound, titanium tetrachloride and Cl.sub.2, Br.sub.2, an interhalogen or mixtures thereof.
    Type: Grant
    Filed: January 22, 1986
    Date of Patent: December 2, 1986
    Assignee: Exxon Research & Engineering Co.
    Inventor: Steven A. Best
  • Polymerization catalyst, production and use
    Patent number: 4607019
    Abstract: A vanadium containing catalyst component useful for polymerizing olefins to polyolefins having a high molecular weight and broad molecular weight distribution comprising polymerizing the olefins in the presence of a catalyst comprising (a) a vanadium containing catalyst component obtained by contacting an inert support material with an organoaluminum compound, a halogenating agent and a vanadium compound, and (b) an aluminum alkyl cocatalyst.
    Type: Grant
    Filed: December 12, 1984
    Date of Patent: August 19, 1986
    Assignee: Exxon Research & Engineering Co.
    Inventor: Steven A. Best
  • Polymerization catalyst, production and use
    Patent number: 4579835
    Abstract: A vanadium containing catalyst component useful for polymerizing olefins to polyolefins having a high molecular weight and broad molecular weight distribution comprising polymerizing the olefins in the presence of a catalyst comprising (a) a vanadium containing catalyst component obtained by contacting an inert support material with an organoaluminum compound, an acyl halide and a vanadium compound, and (b) an aluminum alkyl cocatalyst.
    Type: Grant
    Filed: December 12, 1984
    Date of Patent: April 1, 1986
    Assignee: Exxon Research & Engineering Co.
    Inventor: Steven A. Best
  • Polymerization catalyst, production and use
    Patent number: 4579834
    Abstract: A vanadium-containing catalyst component useful for the polymerization of olefins to polyolefins having a high molecular weight and a broad molecular weight distribution comprising polymerizing the polyolefins in the presence of a catalyst comprising (A) a vanadium-containing catalyst component obtained by contacting an inert support material with a dihydrocarbyl magnesium compound, optionally an oxygen-containing compound, a vanadium compound, a Group III metal halide, and (B) an aluminum alkyl cocatalyst.
    Type: Grant
    Filed: December 12, 1984
    Date of Patent: April 1, 1986
    Assignee: Exxon Research & Engineering Co.
    Inventor: Steven A. Best
  • Polymerization catalyst, production and use
    Patent number: 4578374
    Abstract: A vanadium-containing catalyst component useful for the polymerization of olefins to polyolefins having a high molecular weight and a broad molecular weight distribution comprising polymerizing the polyolefins in the presence of a catalyst comprising (A) a vanadium-containing catalyst component obtained by contacting an inert support material with a dihydrocarbyl magnesium compound, optionally an oxygen-containing compound, a vanadium compound, a Group III metal halide, and (B) an aluminum alkyl cocatalyst.
    Type: Grant
    Filed: December 12, 1984
    Date of Patent: March 25, 1986
    Assignee: Exxon Research & Engineering Co.
    Inventor: Steven A. Best
  • Polymerization catalyst, production and use
    Patent number: 4564606
    Abstract: Ethylene and alpha-olefins are homopolymerized or copolymerized with another olefin monomer in the presence of a catalyst system comprising an organo metal cocatalyst and a titanium-containing catalyst component, said titanium-containing catalyst component being obtained by reacting together a porous particulate material, an organic magnesium compound, an oxygen containing compound, an acyl halide and titanium tetrachloride and Cl.sub.2, Br.sub.2 or an interhalogen.
    Type: Grant
    Filed: August 6, 1984
    Date of Patent: January 14, 1986
    Assignee: Exxon Research & Engineering Co.
    Inventor: Steven A. Best
  • Polymerization catalyst, production and use
    Patent number: 4558024
    Abstract: Ethylene and alpha-olefins are homopolymerized or copolymerized with another olefin monomer in the presence of a catalyst system comprising an organo metal cocatalyst and titanium-containing catalyst component, said titanium-containing catalyst component being obtained by reacting together a porous particulate material, an organic magnesium compound, optionally an oxygen containing compound, titanium tetrachloride and a Group IIIa metal hydrocarbyl dihalide.
    Type: Grant
    Filed: August 6, 1984
    Date of Patent: December 10, 1985
    Assignee: Exxon Research & Engineering Co.
    Inventor: Steven A. Best
  • Polymerization catalyst, production and use
    Patent number: 4558025
    Abstract: Ethylene and alpha-olefins are homopolymerized or copolymerized with another olefin monomer in the presence of a catalyst system comprising an organo metal cocatalyst and a titanium-containing catalyst component, said titanium-containing catalyst component being obtained by reacting together a porous particulate material, an organic magnesium compound, an oxygen containing compound, an acyl halide and titanium tetrachloride and a Group IIIa hydrocarbyl metal dihalide.
    Type: Grant
    Filed: August 6, 1984
    Date of Patent: December 10, 1985
    Assignee: Exxon Research & Engineering Co.
    Inventor: Steven A. Best