Patents by Inventor Liggett Cothran

Liggett Cothran 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: 20120110916
    Abstract: A weatherstrip assembly includes a metal surface, a thin tie layer of polymeric material covering at least select portions of the metal surface, and an elastomeric material received over the thin tie layer of polymeric material and exhibiting improved bonding with the metal through the thin layer of polymeric material. Preferably, the thin tie layer is a polypropylene-based olefinic copolymer and an ethylene acrylic acid copolymer.
    Type: Application
    Filed: February 17, 2009
    Publication date: May 10, 2012
    Inventors: Krishnama Chari Gopalan, Henry Kim, Liggett Cothran
  • Patent number: 7744988
    Abstract: Methods for forming a composite for use as a vehicle weather strip and the products formed thereby are disclosed in which a main body member is formed from an elastomer polymer and an abrasion resistant decorative layer including a blend of a crosslinkable thermoplastic polyolefin and a thermoplastic vulcanizate is applied thereon. The crosslinkable thermoplastic polyolefin preferably includes a crosslinkable olefin homopolymer. The olefin homopolymer preferably contains grafted silane functional groups to allow the material to be crosslinked in the presence of moisture. The abrasion resistant decorative layer may be extruded or otherwise applied onto the main body either prior to or after the main body member is cured and either prior to or after the crosslinkable polyolefin of the abrasion resistant decorative layer is crosslinked. The material of the abrasion resistant decorative layer may be extruded into sheet form and laminated onto the main body member.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: June 29, 2010
    Assignee: Cooper-Standard Automotive Inc.
    Inventors: Liggett Cothran, Henry Kim, Timothy N. Pauli
  • Publication number: 20090111941
    Abstract: A cross-linked, extruded article comprising an elastomeric base material, the surface of which is applied with a thermoset slip coat material, the article exhibiting enhanced slip and a coefficient of friction of no greater than 0.25 and process of making is provided. An extrudable, cross-linkable slip coat comprising a cross-linked thermoset polymer capable of bonding with an elastomeric base material in the absence of adhesive or binder upon contact and process of making is also provided.
    Type: Application
    Filed: October 31, 2007
    Publication date: April 30, 2009
    Inventors: Henry Kim, Liggett Cothran
  • Publication number: 20080102288
    Abstract: Methods for forming a composite for use as a vehicle weather strip and the products formed thereby are disclosed in which a main body member is formed from an elastomer polymer and an abrasion resistant decorative layer including a blend of a crosslinkable thermoplastic polyolefin and a thermoplastic vulcanizate is applied thereon. The crosslinkable thermoplastic polyolefin preferably includes a crosslinkable olefin homopolymer. The olefin homopolymer preferably contains grafted silane functional groups to allow the material to be crosslinked in the presence of moisture. The abrasion resistant decorative layer may be extruded or otherwise applied onto the main body either prior to or after the main body member is cured and either prior to or after the crosslinkable polyolefin of the abrasion resistant decorative layer is crosslinked. The material of the abrasion resistant decorative layer may be extruded into sheet form and laminated onto the main body member.
    Type: Application
    Filed: December 31, 2007
    Publication date: May 1, 2008
    Inventors: Liggett Cothran, Henry Kim, Timothy Pauli
  • Publication number: 20050095374
    Abstract: Methods for forming a composite for use as a vehicle weather strip and the products formed thereby are disclosed in which a main body member is formed from an elastomer polymer and an abrasion resistant decorative layer including a blend of a crosslinkable thermoplastic polyolefin and a thermoplastic vulcanizate is applied thereon. The crosslinkable thermoplastic polyolefin preferably includes a crosslinkable olefin homopolymer. The olefin homopolymer preferably contains grafted silane functional groups to allow the material to be crosslinked in the presence of moisture. The abrasion resistant decorative layer may be extruded or otherwise applied onto the main body either prior to or after the main body member is cured and either prior to or after the crosslinkable polyolefin of the abrasion resistant decorative layer is crosslinked. The material of the abrasion resistant decorative layer may be extruded into sheet form and laminated onto the main body member.
    Type: Application
    Filed: September 27, 2004
    Publication date: May 5, 2005
    Inventors: Liggett Cothran, Henry Kim, Timothy Pauli