Patents by Inventor DAVID C. HOLLIMAN

DAVID C. HOLLIMAN 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).

  • Compatibilization of post consumer resins
    Patent number: 11753534
    Abstract: Compositions comprising post-consumer recycled (PCR) waste are described. The PCR is combined with at least one virgin resin and a propylene-based compatibilizer that enhances the blend between the PCR and virgin resin as well as improving one or more physical properties of the composition. The propylene-based compatibilizer is a reactor made thermoplastic polyolefin or a heterophasic copolymer with a semi-crystalline matrix and a rubber component. This allows for the selection of a compatibilizer that can shift the composition's physical properties based on the end use application, and provide a stronger, miscible blend.
    Type: Grant
    Filed: November 16, 2021
    Date of Patent: September 12, 2023
    Assignee: Equistar Chemicals, LP
    Inventors: Nicholas M. Briggs, Ryan Kramb, Bryan S. Schley, Timothy J. Skillman, Jeffrey J. Strebel, Jeanine A. Smith, David C. Holliman, Rocio S. Garay, Gilles Jobin
  • COMPATIBILIZATION OF POST CONSUMER RESINS
    Publication number: 20220177681
    Abstract: Compositions comprising post-consumer recycled (PCR) waste are described. The PCR is combined with at least one virgin resin and a propylene-based compatibilizer that enhances the blend between the PCR and virgin resin as well as improving one or more physical properties of the composition. The propylene-based compatibilizer is a reactor made thermoplastic polyolefin or a heterophasic copolymer with a semi-crystalline matrix and a rubber component. This allows for the selection of a compatibilizer that can shift the composition's physical properties based on the end use application, and provide a stronger, miscible blend.
    Type: Application
    Filed: November 16, 2021
    Publication date: June 9, 2022
    Applicant: EQUISTAR CHEMICALS, LP
    Inventors: NICHOLAS M. BRIGGS, RYAN KRAMB, BRYAN S. SCHLEY, TIMOTHY J. SKILLMAN, JEFFREY J. STREBEL, JEANINE A. SMITH, DAVID C. HOLLIMAN, ROCIO S. GARAY, GILLES JOBIN