Patents by Inventor Dongman Choi

Dongman Choi 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).

  • Filled polypropylene compositions and related automotive components
    Patent number: 10385191
    Abstract: The present disclosure provides a filled composition made from and/or containing (A) a first polymer composition made from and/or containing (i) a heterophasic polypropylene copolymer and (ii) a polypropylene blend, and (B) a biofiller composition made from and/or containing a cellulose-based biofiller. The filled composition can additionally be made with and/or contain an elastomeric ethylene copolymer composition. Optionally, the filled composition can further be made with and/or contains a grafted polyolefin composition. The filled composition is useful in making automotive components.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: August 20, 2019
    Assignee: Equistar Chemicals, LP
    Inventors: Changlai Yang, Dongman Choi
  • FILLED POLYPROPYLENE COMPOSITIONS AND RELATED AUTOMOTIVE COMPONENTS
    Publication number: 20170226328
    Abstract: The present disclosure provides a filled composition made from and/or containing (A) a first polymer composition made from and/or containing (i) a heterophasic polypropylene copolymer and (ii) a polypropylene blend, and (B) a biofiller composition made from and/or containing a cellulose-based biofiller. The filled composition can additionally be made with and/or contain an elastomeric ethylene copolymer composition. Optionally, the filled composition can further be made with and/or contains a grafted polyolefin composition. The filled composition is useful in making automotive components.
    Type: Application
    Filed: April 26, 2017
    Publication date: August 10, 2017
    Applicant: EQUISTAR CHEMICALS, LP
    Inventors: CHANGLAI YANG, DONGMAN CHOI
  • Filled polypropylene compositions and related automotive components
    Patent number: 9708471
    Abstract: The present disclosure provides a filled composition made from and/or containing (A) a first polymer composition made from and/or containing (i) a heterophasic polypropylene copolymer and (ii) a polypropylene blend, and (B) a biofiller composition made from and/or containing a cellulose-based biofiller. The filled composition can additionally be made with and/or contain an elastomeric ethylene copolymer composition. Optionally, the filled composition can further be made with and/or contains a grafted polyolefin composition. The filled composition is useful in making automotive components.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: July 18, 2017
    Assignee: Equistar Chemicals, LP
    Inventors: Changlai Yang, Dongman Choi
  • FILLED POLYPROPYLENE COMPOSITIONS AND RELATED AUTOMOTIVE COMPONENTS
    Publication number: 20150045479
    Abstract: The present disclosure provides a filled composition made from and/or containing (A) a first polymer composition made from and/or containing (i) a heterophasic polypropylene copolymer and (ii) a polypropylene blend, and (B) a biofiller composition made from and/or containing a cellulose-based biofiller. The filled composition can additionally be made with and/or contain an elastomeric ethylene copolymer composition. Optionally, the filled composition can further be made with and/or contains a grafted polyolefin composition. The filled composition is useful in making automotive components.
    Type: Application
    Filed: August 5, 2014
    Publication date: February 12, 2015
    Inventors: Changlai Yang, Dongman Choi