Patents by Inventor Clifford C. Pettey

Clifford C. Pettey 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).

  • Multilayer blown films for shrink applications
    Patent number: 9718230
    Abstract: The present invention discloses multilayer blown films for shrink label and related applications. These multilayer blown films can comprise a core layer containing an ethylene polymer, and inner and outer layers containing conjugated diene monovinylarene block copolymers.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: August 1, 2017
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Clifford C. Pettey, Charlie Rees
  • Multilayer blown films for shrink applications
    Patent number: 9174377
    Abstract: The present invention discloses multilayer blown films for shrink label and related applications. These multilayer blown films can comprise a core layer containing an ethylene polymer, and inner and outer layers containing conjugated diene monovinylarene block copolymers.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: November 3, 2015
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Clifford C. Pettey, Charlie Rees
  • Multilayer Blown Films for Shrink Applications
    Publication number: 20140346714
    Abstract: The present invention discloses multilayer blown films for shrink label and related applications. These multilayer blown films can comprise a core layer containing an ethylene polymer, and inner and outer layers containing conjugated diene monovinylarene block copolymers.
    Type: Application
    Filed: August 8, 2014
    Publication date: November 27, 2014
    Inventors: Clifford C. Pettey, Charlie Rees
  • MULTILAYER BLOWN FILMS FOR SHRINK APPLICATIONS
    Publication number: 20120288651
    Abstract: The present invention discloses multilayer blown films for shrink label and related applications. These multilayer blown films can comprise a core layer containing an ethylene polymer, and inner and outer layers containing conjugated diene monovinylarene block copolymers.
    Type: Application
    Filed: May 12, 2011
    Publication date: November 15, 2012
    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP
    Inventors: Clifford C. Pettey, Charlie Rees
  • Process for making high impact strength polystyrene and related compositions
    Patent number: 7875678
    Abstract: Compositions, processes, and methods are provided relating to styrenic polymers, including high impact polystyrene (HIPS), also referred to as rubber-modified polystyrene. In one aspect, a process is provided for making high impact polystyrenes, comprising the steps of combining a monovinylarene component, a monovinylarene-conjugated diene block copolymer, and a conjugated diene polymer. In another aspect, the feed components form an emulsion having a continuous phase and a dispersed phase. The continuous phase comprises at least a portion of the monovinylarene component and at least a portion of the conjugated diene polymer. The dispersed phase is suspended within the continuous phase, and comprises globules having at least a portion of the monovinylarene-conjugated diene block copolymer, a remaining portion of the monovinylarene component, and a remaining portion of the conjugated diene polymer.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: January 25, 2011
    Assignee: Chevron Phillips Cheimcal Company, LP
    Inventors: Michael J. Hanner, Chen-Youn Sue, Clifford C. Pettey, Carleton Stouffer, Paul M. Hunt, Ken E. Bowen