Patents by Inventor Oscar Oansuk Chung

Oscar Oansuk Chung 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).

  • Thermoplastic vulcanizates
    Patent number: 11939473
    Abstract: A thermoplastic vulcanizate composition comprises: (i) a dispersed phase of rubber that is at least partially cured; (ii) a continuous thermoplastic phase including at least one thermoplastic polymer; (iii) a first polysiloxane composition comprising a migratory siloxane polymer physically dispersed in a first thermoplastic material and (iv) a second polysiloxane composition comprising a non-migratory, siloxane polymer bonded to a second thermoplastic material.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: March 26, 2024
    Assignee: Celanese International Corporation
    Inventors: Prashant Bhadane, Chad Michael Houghton, Oscar Oansuk Chung, Eric Paul Jourdain, Hang Dong
  • Thermoplastic vulcanizates
    Patent number: 11359083
    Abstract: A thermoplastic vulcanizate composition comprises: (i) a dispersed phase of rubber that is at least partially cured; (ii) a continuous thermoplastic phase including at least one thermoplastic polymer; (iii) a first polysiloxane comprising a migratory liquid siloxane polymer; and (iv) a second polysiloxane comprising a non-migratory siloxane polymer bonded to a thermoplastic material.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: June 14, 2022
    Assignee: Celanese International Corporation
    Inventors: Prashant Bhadane, Toshiaki Yamaguchi, Eric Paul Jourdain, Hang Dong, Weiqian Zhang, Oscar Oansuk Chung
  • Thermoplastic Vulcanizates
    Publication number: 20210040299
    Abstract: A thermoplastic vulcanizate composition comprises: (i) a dispersed phase of rubber that is at least partially cured; (ii) a continuous thermoplastic phase including at least one thermoplastic polymer; (iii) a first polysiloxane comprising a migratory liquid siloxane polymer; and (iv) a second polysiloxane comprising a non-migratory siloxane polymer bonded to a thermoplastic material.
    Type: Application
    Filed: December 7, 2018
    Publication date: February 11, 2021
    Inventors: Prashant Bhadane, Toshiaki Yamaguchi, Eric Paul Jourdain, Hang Dong, Weiqian Zhang, Oscar Oansuk Chung
  • Thermoplastic Vulcanizates
    Publication number: 20200362148
    Abstract: A thermoplastic vulcanizate composition comprises: (i) a dispersed phase of rubber that is at least partially cured; (ii) a continuous thermoplastic phase including at least one thermoplastic polymer; (iii) a first polysiloxane composition comprising a migratory siloxane polymer physically dispersed in a first thermoplastic material and (iv) a second polysiloxane composition comprising a non-migratory, siloxane polymer bonded to a second thermoplastic material.
    Type: Application
    Filed: December 7, 2018
    Publication date: November 19, 2020
    Inventors: Prashant Bhadane, Chad Michael Houghton, Oscar Oansuk Chung, Eric Paul Jourdain, Hang Dong
  • Method for Preparing Thermoplastic Vulcanizates
    Publication number: 20110028637
    Abstract: A method for preparing a thermoplastic vulcanizate, the method comprising introducing an elastomer and a thermoplastic resin to a reaction extruder, where the elastomer is not prepared by gas-phase polymerization methods, and where less than 75 parts by weight oil, per 100 parts by weight elastomer, is added to the extruder with the elastomer, introducing a curative to the extruder after said step of introducing an elastomer, introducing an oil to the extruder after said step of introducing an elastomer but before or together with said step of introducing a curative, and introducing an oil to the extruder after said step of introducing a curative.
    Type: Application
    Filed: October 26, 2009
    Publication date: February 3, 2011
    Inventors: Maria Dolores Ellul, Hari Prasad Nadella, Oscar Oansuk Chung