Patents by Inventor RONALD C. HEDDEN

RONALD C. HEDDEN 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).

  • Publication number: 20160244867
    Abstract: A process of incorporating metal in the form of nanoparticles into the surface layer of a polymeric article and the resultant articles are disclosed. The process includes bringing at least a part of the surface of said article in contact with a solvent mixture that contains (a) water, (b) a carrier conforming to R1—[—O—(CH2)n]mOR2 where R1 and R2 independently one from the other denote a radical selected from the group consisting of linear and branched C1-18 alkyl, benzyl, benzoyl, phenyl and H, n is 2 or 3, and m is 1-35, (c) a metal precursor, and optionally (d) a leveling agent, for a time sufficient to enable infusion of at least some of said metal precursor into said article to obtain an article having a treated surface layer; and treating the surface layer with a reducing agent to produce metal in the form of nanoparticles. The inventive articles prepared by the inventive process exhibit advantageous electrical and/or optical properties.
    Type: Application
    Filed: May 5, 2016
    Publication date: August 25, 2016
    Inventors: Robert A. Pyles, Ronald C. Hedden, Daniel Lentz
  • Patent number: 9388324
    Abstract: A process for endowing a polymeric article with a surface layer of an ion-conducting polymer to yield electrical surface resistivity sufficiently low for electrostatic discharge applications is provided. The polymeric article contains one or more immobilized, polymeric components having amine functional groups. The presence of the ion-conducting polymer in the surface layer lowers the surface electrical resistivity into the range suitable for electrostatic discharge applications, between about 1×105 and about 1×1012 ?/?. Plastic electrostatic dissipation materials produced by the inventive process may find use in the optical, electronics, automotive, entertainment, sporting goods, and medical sectors.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: July 12, 2016
    Assignee: Covestro LLC
    Inventors: Robert A. Pyles, Ronald C. Hedden
  • Publication number: 20140255727
    Abstract: A process for endowing a polymeric article with a surface layer of an ion-conducting polymer to yield electrical surface resistivity sufficiently low for electrostatic discharge applications is provided. The polymeric article contains one or more immobilized, polymeric components having amine functional groups. The presence of the ion-conducting polymer in the surface layer lowers the surface electrical resistivity into the range suitable for electrostatic discharge applications, between about 1×105 and about 1×1012 ?/?. Plastic electrostatic dissipation materials produced by the inventive process may find use in the optical, electronics, automotive, entertainment, sporting goods, and medical sectors.
    Type: Application
    Filed: May 22, 2014
    Publication date: September 11, 2014
    Inventors: Robert A. Pyles, Ronald C. Hedden
  • Patent number: 8758860
    Abstract: A process for endowing a polymeric article with a surface layer of an ion-conducting polymer to yield electrical surface resistivity sufficiently low for electrostatic discharge applications is provided. The polymeric article contains one or more immobilized, polymeric components having amine functional groups. The presence of the ion-conducting polymer in the surface layer lowers the surface electrical resistivity into the range suitable for electrostatic discharge applications, between about 1×105 and about 1×1012?/?. Plastic electrostatic dissipation materials produced by the inventive process may find use in the optical, electronics, automotive, entertainment, sporting goods, and medical sectors.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: June 24, 2014
    Assignee: Bayer MaterialScience LLC
    Inventors: Robert A. Pyles, Ronald C. Hedden
  • Publication number: 20120077038
    Abstract: The present invention provides a plastic article containing a first polymer and an interpenetrating network or blend of a second polymer infused in a surface layer of the first polymer, wherein the second polymer is the product of photopolymerizing, in a de-oxygenated environment, a reactive monomer in the presence of one or more radical photoinitiators. The present invention also provides a process for the infusion of a surface layer polymer interpenetrating network (“IPN”) or interpenetrating blend (“IPB”) into plastic articles. By inclusion of a second polymer within the pre-existing first polymer, surface modification of the physical and chemical properties of the host polymer may be enhanced.
    Type: Application
    Filed: September 29, 2010
    Publication date: March 29, 2012
    Applicant: Bayer MaterialScience LLC
    Inventors: Robert A. Pyles, Ronald C. Hedden, Daniel M. Lentz
  • Publication number: 20090297829
    Abstract: A process of incorporating metal in the form of nanoparticles into the surface layer of a polymeric article and the resultant articles are disclosed. The process includes bringing at least a part of the surface of said article in contact with a solvent mixture that contains (a) water, (b) a carrier conforming to R1—[—O—(CH2)n]mOR2 where R1 and R2 independently one from the other denote a radical selected from the group consisting of linear and branched C1-8 alkyl, benzyl, benzoyl, phenyl and H, n is 2 or 3, and m is 1-35, (c) a metal precursor, and optionally (d) a leveling agent, for a time sufficient to enable infusion of at least some of said metal precursor into said article to obtain an article having a treated surface layer; and treating the surface layer with a reducing agent to produce metal in the form of nanoparticles. The inventive articles prepared by the inventive process exhibit advantageous electrical and/or optical properties.
    Type: Application
    Filed: October 8, 2008
    Publication date: December 3, 2009
    Inventors: ROBERT A. PYLES, RONALD C. HEDDEN, DANIEL LENTZ
  • Publication number: 20090297830
    Abstract: A process of incorporating metal in the form of nanoparticles into the surface layer of a polymeric article is disclosed. The process includes bringing at least a part of the surface of said article in contact with a solvent mixture that contains (a) water, (b) a carrier conforming to R1—[—O—(CH2)n]mOR2 where R1 and R2 independently one from the other denote a radical selected from the group consisting of linear and branched C1-18 alkyl, benzyl, benzoyl, phenyl and H, n is 2 or 3, and m is 1-35, (c) a metal precursor, and optionally (d) a leveling agent, for a time sufficient to enable infusion of at least some of said metal precursor into said article to obtain an article having a treated surface layer; and treating the surface layer with a reducing agent to produce metal in the form of nanoparticles. Articles prepared by the inventive process exhibit advantageous electrical and/or optical properties.
    Type: Application
    Filed: June 2, 2008
    Publication date: December 3, 2009
    Inventors: Robert A. Pyles, Ronald C. Hedden, Daniel Lentz