Patents by Inventor Dexi Weng

Dexi Weng 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: 7196137
    Abstract: The invention is based on the discovery of useful combinations of fully cross-linked thermoplastic vulcanizates with styrenic block copolymers. The new combinations of the invention can provide a synergistic effect. Specifically, the compositions formed thereby can be both softer and more elastic than would be expected on the basis of the properties of the individual components. Such compositions can be used in numerous applications, including, for example, any application for which a soft material with very good recovery is desired.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: March 27, 2007
    Assignee: Teknor Apex Company
    Inventors: Tonya M. McBride, Raman Patel, Wayne Thornton, Keith G. Saunders, Dexi Weng
  • Publication number: 20030212167
    Abstract: A polymer composition capable of depleting oxygen from adjacent spaces is disclosed. One or more botanical extracts, either naturally occurring or synthetic, that contain proanthocyanidin or its derivatives are added to a base polymer or polymer blend prior to processing to provide the polymer with oxygen-scavenging benefits without adverse effect to the characteristics of the base polymer or polymer blend.
    Type: Application
    Filed: May 8, 2002
    Publication date: November 13, 2003
    Applicant: Teknor Apex Company
    Inventors: Dexi Weng, John A. Buono
  • Patent number: 6608142
    Abstract: Compositions of a polyvinyl chloride resin, a polyolefin which is the metallocene-catalyzed reaction product of ethylene and an alpha-olefin monomer, and a component selected from the group consisting of chlorinated polyethylene, polycaprolactone, and combinations thereof are disclosed. The compositions are essentially free of liquid plasticizers, and prossess good mechanical properties of tensile strength, elongation, and a low brittle point, even after being subjected to high heat for an extended period of time.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: August 19, 2003
    Assignee: Teknor Apex Company
    Inventors: Dexi Weng, John Andries, Keith G. Saunders, Robert S. Brookman
  • Publication number: 20030153680
    Abstract: The invention is based on the discovery of useful combinations of fully cross-linked thermoplastic vulcanizates with styrenic block copolymers. The new combinations of the invention can provide a synergistic effect. Specifically, the compositions formed thereby can be both softer and more elastic than would be expected on the basis of the properties of the individual components. Such compositions can be used in numerous applications, including, for example, any application for which a soft material with very good recovery is desired.
    Type: Application
    Filed: February 8, 2002
    Publication date: August 14, 2003
    Inventors: Tonya M. McBride, Raman Patel, Wayne Thornton, Keith G. Saunders, Dexi Weng
  • Patent number: 6417260
    Abstract: Compositions of a plasticized polyvinyl chloride resin, a polyolefin and/or a styrenic polymer, and a compatibilizer are disclosed. The compositions retain the mechanical properties of tensile strength, elongation, and a low brittle point, even after being subjected to high heat for an extended period of time.
    Type: Grant
    Filed: March 28, 2000
    Date of Patent: July 9, 2002
    Assignee: Teknor Apex Company
    Inventors: Dexi Weng, John C. Andries, Keith G. Saunders
  • Patent number: 6271301
    Abstract: Thermoplastic elastomers including a polyvinyl chloride and a nitrile rubber additive are disclosed. The nitrile rubber additive can be crosslinked and/or essentially free of plasticizer. The thermoplastic elastomers can include additional materials, such a copolyester and/or a plasticizer. The thermoplastic elastomers can be soft, elastomeric and/or oil resistant. The thermoplastic elastomers can have good low temperature properties. The thermoplastic elastomers can have good flame retardant, smoke suppressant and/or char forming properties.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: August 7, 2001
    Assignee: Teknor Apex Company
    Inventors: Dexi Weng, John C. Andries, Keith G. Saunders
  • Patent number: 6063846
    Abstract: Compositions of a plasticized polyvinyl chloride resin, a polyolefin and/or a styrenic polymer, and a compatibilizer are disclosed. The compositions retain the mechanical properties of tensile strength, elongation, and a low brittle point, even after being subjected to high heat for an extended period of time.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: May 16, 2000
    Assignee: Teknor Apex Company
    Inventors: Dexi Weng, John C. Andries, Keith G. Saunders
  • Patent number: 5804653
    Abstract: A moldable polymeric compound containing about 50 to 99 weight percent of a polyvinyl alcohol and about 1 to 50 weight percent of an oxa acid plasticizer, suitable for molding biodegradable and water dispersible objects such as tampon applicators.
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: September 8, 1998
    Assignee: Playtex Products, Inc.
    Inventor: Dexi Weng