Patents by Inventor Billy J. Ellis

Billy J. Ellis 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).

  • High impact polystyrene and process for preparing same
    Patent number: 8093332
    Abstract: Disclosed are high impact polystyrenes prepared using mixed initiators. The mixed initiators include at least one grafting initiator and one non-grafting initiator. The high impact polystyrenes prepared therewith have a continuous polystyrene phase and dispersed therein particles of rubber predominantly having a honeycomb structure of rubber with polystyrene inclusions.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: January 10, 2012
    Assignee: Fina Technology, Inc.
    Inventors: Jose M. Sosa, Billy J. Ellis
  • High Impact Polymers and Methods of Making and Using Same
    Publication number: 20110054123
    Abstract: A method comprising contacting a grafting polymerization initiator with a composition comprising a vinylaromatic monomer and an elastomer under conditions suitable for the formation of a polymeric composition and forming the polymeric composition into an article wherein the article has an Izod impact strength of greater than 2.0 ft. lb./in. A method comprising contacting a grafting polymerization initiator with a vinylaromatic monomer and an elastomer under conditions suitable for the formation of a polymeric composition, wherein the grafting polymerization initiator comprises a peroxyketal.
    Type: Application
    Filed: August 26, 2009
    Publication date: March 3, 2011
    Applicant: FINA TECHNOLOGY, INC.
    Inventors: Olga Khabashesku, Billy J. Ellis
  • Process and apparatus for continuous manufacture of elastomer-modified monovinylaromatic compounds
    Patent number: 6437043
    Abstract: The present invention discloses processes and apparatus for the efficient and rapid conversion of an elastomeric monomer to a polymerized elastomer, and conjointly, reaction of the resultant rubbery polymer into a monovinylaromatic polymerization reaction to form a rubber-modified polymer; and more specifically teaches a method of polymerizing butadiene and reacting it with styrene monomer to form a transparent rubber-modified impact-resistant polystyrene material exhibiting elastomer concentrations that range from as low as 6 weight percent or lower, to as high as about 50 percent.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: August 20, 2002
    Assignee: Fina Technology, Inc.
    Inventors: Jose M. Sosa, Billy J. Ellis