Patents by Inventor James H. Pawlow

James H. Pawlow 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).

  • Patent number: 7915368
    Abstract: A method is presented for making alkoxy-modified silsesquioxanes (AMS) or co-alkoxy-modified silsesquioxanes (co-AMS,) comprising the steps of (a) combining as a reaction mixture (i) water, (ii) an acid-stable solvent for the water, (iii) a solid strong cationic hydrolysis and condensation catalyst, and (iv) a trialkoxysilane compound, (b) allowing the reaction mixture to react for about 0.5 hours to about 200 hours to form the alkoxy-modified silsesquioxanes; and (c) recovering the alkoxy-modified silsesquioxanes from the reaction mixture. The use of solid strong cationic catalysts in this reaction system is advantageous because they remain as solids throughout the reaction, allowing simplified separation of the solid catalyst from the soluble AMS or co-AMS products, resulting in total or near total recovery of the AMS or co-AMS products, the products being free of, or substantially free of residual acid catalyst, as well as virtual total recovery of the catalyst for recycling.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: March 29, 2011
    Assignee: Bridgestone Corporation
    Inventors: William L. Hergenrother, James H. Pawlow, Terrence E. Hogan, Ashley S. Hilton
  • Publication number: 20100093920
    Abstract: Embodiments relate to a novel catalyst composition comprising a transition metal-containing compound, a PNP compound, an alkylating agent and a fluorine containing compound. Other embodiments relate to a method of polymerizing a diene monomer in the presence of the novel composition to form a diene-containing polymer having greater than 90% cis content.
    Type: Application
    Filed: October 1, 2009
    Publication date: April 15, 2010
    Inventors: James H. PAWLOW, Terrence E. HOGAN
  • Publication number: 20100029850
    Abstract: Adducts of an unsaturated metathesis polymer or interpolymer and an unsaturated diacid anhydride. A process for producing adducts of an unsaturated metathesis polymer or interpolymer and unsaturated diacid anhydride.
    Type: Application
    Filed: August 4, 2009
    Publication date: February 4, 2010
    Inventors: James H. Pawlow, William L. Hergenrother, Mark N. Dedecker, Daniel F. Graves
  • Publication number: 20090326255
    Abstract: A method is presented for making an amino alkoxy-modified silsesquioxane (amino AMS) comprising one or more compounds selected from the group consisting of an amino-AMS, an amino/mercaptan co-AMS, an amino/blocked mercaptan co-AMS, and mixtures of these. The use of solid strong cationic catalysts in this reaction system is advantageous because the catalyst remains as a solid throughout the reaction, allowing simplified separation of the solid catalyst from the soluble amino AMS or amino co-AMS products, resulting in total or near total recovery of the amino AMS or amino co-AMS products, as well as virtual total recovery of the catalyst for recycling. The use of the solid strong cationic catalysts is advantageous because it results in amino AMS products that are free of, or substantially free of, residual acid catalyst.
    Type: Application
    Filed: December 31, 2008
    Publication date: December 31, 2009
    Inventors: William L. Hergenrother, James H. Pawlow, Terrence E. Hogan, Ashley S. Hilton
  • Patent number: 7608664
    Abstract: In one embodiment of the present invention, a curable sealant composition and method for its preparation are provided. The composition includes a polymer which is prepared by functionalizing a poly(conjugated diene) with a curable group such as a tetra-substituted silicon compound and then substantially hydrogenating the functionalized polymer in the presence of a Ziegler type catalyst. The composition can further include additional curable sealant ingredient selected from the group consisting of plasticizers, fillers, reinforcing agents, modifiers, curing catalysts/hardeners, stabilizers, and mixtures thereof.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: October 27, 2009
    Assignee: Bridgestone Corporation
    Inventors: James H. Pawlow, Yuan-Yong Yan, Takayuki Yako, Jason T. Poulton
  • Publication number: 20090203929
    Abstract: An amino alkoxy-modified silsesquioxane (AMS) comprising one or more compounds selected from the group consisting of an amino AMS, an amino/mercaptan co-AMS, an amino/blocked mercaptan co-AMS, mixtures thereof, and a weak acid-neutralized solid or aqueous solution thereof, and a method of making the amino AMS, are presented. The compounds are useful in compounding, processing, cure and storage of silica-reinforced rubbers because they contain low levels of volatile organic compounds (VOC).
    Type: Application
    Filed: December 31, 2008
    Publication date: August 13, 2009
    Inventors: William L. Hergenrother, Ashley Hilton, Michael Hayes, Walter Tomaszewski, James H. Pawlow, Terrence E. Hogan
  • Publication number: 20090171014
    Abstract: Methods of forming blocked-mercapto alkoxy-modified silsesquioxanes are provided. The blocked-mercapto alkoxy-modified silsesquioxane compounds contain an alkoxysilane group that participates in an alkoxysilane-silica reaction as a silica dispersing agent in rubber, with the release of zero to about 0.1% by weight of the rubber as alcohol (a volatile organic compound (VOC)), during compounding and further processing. The blocked-mercapto alkoxy-modified silsesquioxane compounds also contain a blocked mercapto group which, when de-blocked, allows the mercapto group to interact with the polymer(s) in a rubber composition. Further described are rubber compounds containing the blocked-mercapto alkoxy-modified silsesquioxanes.
    Type: Application
    Filed: December 29, 2008
    Publication date: July 2, 2009
    Inventors: William L. Hergenrother, Chenchy Jeffrey Lin, James H. Pawlow, Terrence E. Hogan
  • Publication number: 20090165913
    Abstract: Amino alkoxy-modified silsesquioxanes (amino AMS), and/or amino co-AMS compounds that also comprise a mercaptosilane or a blocked mercaptosilane, are excellent adhesives for coating plated or unplated metal wire for adherence of the wire to a rubber stock. The amino AMS and/or the amino/mercaptan co-AMS adhesives can be used with all types of rubber and there is no requirement for the use of special adhesive additives to the rubber vulcanizates, such as, but not limited to, cobalt, resins and high sulfur levels. In particular, the use of amino AMS and/or amino/mercaptan co-AMS compounds as adhesives for bonding wire to rubber also improves the adherence performance of the reinforcements to obtain sufficient bonding that is resistant to degradation over the course of time, especially resistance to thermal aging and/or thermo-oxidizing aging, in particular corrosion in the presence of water.
    Type: Application
    Filed: December 31, 2008
    Publication date: July 2, 2009
    Inventors: William L. Hergenrother, Walter Tomaszewski, Ashley Hilton, Michael Hayes, James H. Pawlow, Terrence E. Hogan
  • Publication number: 20080293858
    Abstract: A method is presented for making alkoxy-modified silsesquioxanes (AMS) or co-alkoxy-modified silsesquioxanes (co-AMS,) comprising the steps of (a) combining as a reaction mixture (i) water, (ii) an acid-stable solvent for the water, (iii) a solid strong cationic hydrolysis and condensation catalyst, and (iv) a trialkoxysilane compound, (b) allowing the reaction mixture to react for about 0.5 hours to about 200 hours to form the alkoxy-modified silsesquioxanes; and (c) recovering the alkoxy-modified silsesquioxanes from the reaction mixture. The use of solid strong cationic catalysts in this reaction system is advantageous because they remain as solids throughout the reaction, allowing simplified separation of the solid catalyst from the soluble AMS or co-AMS products, resulting in total or near total recovery of the AMS or co-AMS products, the products being free of, or substantially free of residual acid catalyst, as well as virtual total recovery of the catalyst for recycling.
    Type: Application
    Filed: May 23, 2007
    Publication date: November 27, 2008
    Inventors: William L. Hergenrother, James H. Pawlow, Terrence E. Hogan, Ashley S. Hilton
  • Publication number: 20080167509
    Abstract: A method for treating a hydrocarbon solvent, the method comprising continuously introducing a hydrocarbon solvent to a liquid medium containing hydrogen ions; allowing the hydrocarbon solvent to be in contact with the liquid medium for at least 1 minute; continuously removing hydrocarbon solvent from the liquid medium to provide a treated hydrocarbon solvent stream.
    Type: Application
    Filed: December 28, 2007
    Publication date: July 10, 2008
    Inventors: James H. Pawlow, William L. Hergenrother
  • Publication number: 20080161491
    Abstract: In one embodiment of the present invention, a curable sealant composition and method for its preparation are provided. The composition includes a polymer which is prepared by functionalizing a poly(conjugated diene) with a curable group such as tetra-substituted silicon compound and then substantially hydrogenating the functionalized polymer in the presence of 2-jegler type catalyst. The composition can further include additional curable sealant ingredient selected from the group consisting of plasticizers, fillers, reinforcing agents, modifiers, curing catalysts/hardeners, stabilizers, and mixtures thereof.
    Type: Application
    Filed: January 18, 2006
    Publication date: July 3, 2008
    Inventors: James H. Pawlow, Yuan-Yong Yan, Takayuki Yako, Jason T. Poulton
  • Patent number: 7172755
    Abstract: Polymers containing amino acid and/or polypeptide moieties in their backbones or pendant to their backbones are made by metathesis. A method of making an amino acid or polypeptide containing polymer includes the steps of: providing a amino acid, amino alcohol, or polypeptide-containing monomer; forming a reaction mixture by contacting the monomer with an agent capable of catalyzing the polymerization of the monomer into a polymer; and placing the reaction mixture under conditions that result in the formation of the polymer in reaction mixture.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: February 6, 2007
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: Kenneth B. Wagener, Timothy E. Hopkins, James H. Pawlow, Fernando J. Gomez
  • Patent number: 7132503
    Abstract: A process for removing residual polymer from polymerization equipment by combining a degelling agent, residual polymer, and solvent.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: November 7, 2006
    Assignee: Bridgestone Corporation
    Inventors: James H. Pawlow, David M. Roggeman, Daniel Graves, William Hergenrother, James Oziomek
  • Patent number: 6680051
    Abstract: Polymers containing amino acid and/or polypeptide moieties in their backbones or pendant to their backbones are made by metathesis. A method of making an amino acid or polypeptide containing polymer includes the steps of: providing a amino acid, amino alcohol, or polypeptide-containing monomer; forming a reaction mixture by contacting the monomer with an agent capable of catalyzing the polymerization of the monomer into a polymer; and placing the reaction mixture under conditions that result in the formation of the polymer in reaction mixture.
    Type: Grant
    Filed: August 20, 2001
    Date of Patent: January 20, 2004
    Assignee: University of Florida
    Inventors: Kenneth B. Wagener, Timothy E. Hopkins, James H. Pawlow, Fernando J. Gomez
  • Publication number: 20030139556
    Abstract: Polymers containing amino acid and/or polypeptide moieties in their backbones or pendant to their backbones are made by metathesis. A method of making an amino acid or polypeptide containing polymer includes the steps of: providing a amino acid, amino alcohol, or polypeptide-containing monomer; forming a reaction mixture by contacting the monomer with an agent capable of catalyzing the polymerization of the monomer into a polymer; and placing the reaction mixture under conditions that result in the formation of the polymer in reaction mixture.
    Type: Application
    Filed: December 9, 2002
    Publication date: July 24, 2003
    Inventors: Kenneth B. Wagener, Timothy E. Hopkins, James H. Pawlow, Fernando J. Gomez
  • Publication number: 20020071823
    Abstract: Polymers containing amino acid and/or polypeptide moieties in their backbones or pendant to their backbones are made by metathesis. A method of making an amino acid or polypeptide containing polymer includes the steps of: providing a amino acid, amino alcohol, or polypeptide-containing monomer; forming a reaction mixture by contacting the monomer with an agent capable of catalyzing the polymerization of the monomer into a polymer; and placing the reaction mixture under conditions that result in the formation of the polymer in reaction mixture.
    Type: Application
    Filed: August 20, 2001
    Publication date: June 13, 2002
    Inventors: Kenneth B. Wagener, Timothy E. Hopkins, James H. Pawlow, Fernando J. Gomez
  • Patent number: 6303717
    Abstract: Oily hyperbranched polymers derived from ethylene, propylene, butene and/or a C5-C24 &agr;-olefin, and a method for their synthesis, are disclosed. The polymers have non-regular microstructures and are characterized by a ratio ()of methyl hydrogens centered around 0.85 ppm on the 1H-NMR spectra of the polymers relative to total aliphatic hydrogens of from about 0.40 to about 0.65 for polymers derived from ethylene or butene, and a ratio ()of from greater than 0.50 to about 0.65 for polymers derived from propylene. A method for grafting hyperbranched polymers derived from ethylene, propylene, butene and/or a C5-C24 &agr;-olefin onto aromatic rings in organic molecules and polymers, and the resulting grafted materials, are also disclosed. The hyperbranched polymers and grafted materials are useful, for example, as lubricants and lubricant additives.
    Type: Grant
    Filed: February 3, 1998
    Date of Patent: October 16, 2001
    Assignee: The Penn State Research Foundation University Park PA
    Inventors: Ayusman Sen, Jang Sub Kim, James H. Pawlow, Shahid Murtuza, Smita Kacker, Louis M. Wojcinski, III