Patents by Inventor Feng-Jon CHANG

Feng-Jon CHANG 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: 11845838
    Abstract: Embodiments of organic peroxide formulations provide significant improvements in surface tackiness (often including tack-free surfaces) when curing elastomers in the presence of oxygen. The peroxide formulations may include, for example, one or more compounds selected from sulfur-containing compounds, organophosphite compounds, HALS (Hindered Amine Light Stabilizer) compounds, aliphatic allyl urethane compounds, and blends comprising nitroxides (e.g., 4-hydroxy-TEMPO) and quinones (e.g., mono-tert-butylhydroquinone).
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: December 19, 2023
    Assignee: Arkema Inc.
    Inventors: Leonard H. Palys, Peter R. Dluzneski, William P. Pavlek, Alfredo Defrancisci, Feng-Jon Chang, Marina Despotopoulou, Michael B Abrams, Joseph M. Brennan, Isabelle Tartarin
  • Publication number: 20200299469
    Abstract: Embodiments of organic peroxide formulations provide significant improvements in surface tackiness (often including tack-free surfaces) when curing elastomers in the presence of oxygen. The peroxide formulations may include, for example, one or more compounds selected from sulfur-containing compounds, organophosphite compounds, HALS (Hindered Amine Light Stabilizer) compounds, aliphatic allyl urethane compounds, and blends comprising nitroxides (e.g., 4-hydroxy-TEMPO) and quinones (e.g., mono-tert-butylhydroquinone).
    Type: Application
    Filed: June 10, 2020
    Publication date: September 24, 2020
    Inventors: Leonard H. PALYS, Peter R. DLUZNESKI, William P. PAVLEK, Alfredo DEFRANCISCI, Feng-Jon CHANG, Marina DESPOTOPOULOU, Michael B. ABRAMS, Joseph M. BRENNAN, Isabelle TARTARIN
  • Patent number: 10752764
    Abstract: An organic peroxide formulation includes at least one organic peroxide and at least one cellulose compound. Embodiments of the organic peroxide formulations significant improvements in surface tackiness (often including but not limited to tack-free surfaces) when curing elastomers in the presence of oxygen. Embodiments of the present invention relate to organic peroxide formulations that can cure solid elastomers in the full or partial presence of oxygen using, for example, a hot air oven or tunnel, molten salt bath, or steam autoclave. Embodiments of the invention also relate to crosslinkable elastomer compositions, processes for curing the elastomers, and products made by such processes.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: August 25, 2020
    Assignee: Arkema Inc.
    Inventors: Feng-Jon Chang, William P. Pavlek, Leonard H. Palys, Peter R. Dluzneski, Marina Despotopoulou, Alfredo Defrancisci, Joseph M. Brennan, Michael B. Abrams, Isabelle Tartarin
  • Patent number: 10717829
    Abstract: Embodiments of organic peroxide formulations provide significant improvements in surface tackiness (often including tack-free surfaces) when curing elastomers in the presence of oxygen. The peroxide formulations may include, for example, one or more compounds selected from sulfur-containing compounds, organophosphite compounds, HALS (Hindered Amine Light Stabilizer) compounds, aliphatic allyl urethane compounds, and blends comprising nitroxides (e.g., 4-hydroxy-TEMPO) and quinones (e.g., mono-tert-butylhydroquinone).
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: July 21, 2020
    Assignee: Arkema Inc.
    Inventors: Leonard H. Palys, Peter R. Dluzneski, William P. Pavlek, Alfredo Defrancisci, Feng-Jon Chang, Marina Despotopoulou, Michael B. Abrams, Joseph M. Brennan, Isabelle Tartarin
  • Publication number: 20190256671
    Abstract: Embodiments of organic peroxide formulations provide significant improvements in surface tackiness (often including tack-free surfaces) when curing elastomers in the presence of oxygen. The peroxide formulations may include, for example, one or more compounds selected from sulfur-containing compounds, organophosphite compounds, HALS (Hindered Amine Light Stabilizer) compounds, aliphatic allyl urethane compounds, and blends comprising nitroxides (e.g., 4-hydroxy-TEMPO) and quinones (e.g., mono-tert-butylhydroquinone).
    Type: Application
    Filed: May 1, 2019
    Publication date: August 22, 2019
    Inventors: Leonard H. PALYS, Peter R. DLUZNESKI, William P. PAVLEK, Alfredo DEFRANCISCI, Feng-Jon CHANG, Marina DESPOTOPOULOU, Michael B. ABRAMS, Joseph M. BRENNAN, Isabelle TARTARIN
  • Patent number: 10316154
    Abstract: Embodiments of organic peroxide formulations provide significant improvements in surface tackiness (often including tack-free surfaces) when curing elastomers in the presence of oxygen. The peroxide formulations may include, for example, one or more compounds selected from sulfur-containing compounds, organophosphite compounds, HALS (Hindered Amine Light Stabilizer) compounds, aliphatic allyl urethane compounds, and blends comprising nitroxides (e.g., 4-hydroxy-TEMPO) and quinones (e.g., mono-tert-butylhydroquinone).
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: June 11, 2019
    Assignee: Arkema Inc.
    Inventors: Leonard H. Palys, Peter R. Dluzneski, William P. Pavlek, Alfredo Defrancisci, Feng-Jon Chang, Marina Despotopoulou, Michael B. Abrams, Joseph M. Brennan, Isabelle Tartarin
  • Publication number: 20170267855
    Abstract: An organic peroxide formulation includes at least one organic peroxide and at least one cellulose compound. Embodiments of the organic peroxide formulations significant improvements in surface tackiness (often including but not limited to tack-free surfaces) when curing elastomers in the presence of oxygen. Embodiments of the present invention relate to organic peroxide formulations that can cure solid elastomers in the full or partial presence of oxygen using, for example, a hot air oven or tunnel, molten salt bath, or steam autoclave. Embodiments of the invention also relate to crosslinkable elastomer compositions, processes for curing the elastomers, and products made by such processes.
    Type: Application
    Filed: December 3, 2015
    Publication date: September 21, 2017
    Inventors: Feng-Jon CHANG, William P. PAVLEK, Leonard H. PALYS, Peter R. DLUZNESKI, Marina DESPOTOPOULOU, Alfredo DEFRANCISCI, Joseph M. BRENNAN, Michael B. ABRAMS, Isabelle TARTARIN
  • Publication number: 20170260343
    Abstract: Embodiments of organic peroxide formulations provide significant improvements in surface tackiness (often including tack-free surfaces) when curing elastomers in the presence of oxygen. The peroxide formulations may include, for example, one or more compounds selected from sulfur-containing compounds, organophosphite compounds, HALS (Hindered Amine Light Stabilizer) compounds, aliphatic allyl urethane compounds, and blends comprising nitroxides (e.g., 4-hydroxy-TEMPO) and quinones (e.g., mono-tert-butylhydroquinone).
    Type: Application
    Filed: December 3, 2015
    Publication date: September 14, 2017
    Inventors: Leonard H. PALYS, Peter R. DLUZNESKI, William P. PAVLEK, Alfredo DEFRANCISCI, Feng-Jon CHANG, Marina DESPOTOPOULOU, Michael B. ABRAMS, Joseph M. BRENNAN, Isabelle TARTARIN