Patents by Inventor Shun-Jen Ghiang

Shun-Jen Ghiang 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).

  • Process for preparing polyimides
    Patent number: 10696793
    Abstract: The present invention provides a process for preparing polyimides. The process includes cyclizing a polyimide precursor composition in a vacuum-like environment by using infrared radiation to give polyimide. The process can effectively reduce the cyclization temperature and time, thereby reducing energy and process costs.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: June 30, 2020
    Assignee: ETERNAL MATERIALS CO., LTD.
    Inventors: Chung-Jen Wu, Meng-Yen Chou, Chang-Hong Ho, Shun-Jen Ghiang, Po-Yu Huang, Chung-Kai Cheng
  • PROCESS FOR PREPARING POLYIMIDES
    Publication number: 20200055986
    Abstract: The present invention provides a process for preparing polyimides. The process includes cyclizing a polyimide precursor composition in a vacuum-like environment by using infrared radiation to give polyimide. The process can effectively reduce the cyclization temperature and time, thereby reducing energy and process costs.
    Type: Application
    Filed: August 15, 2019
    Publication date: February 20, 2020
    Applicant: ETERNAL MATERIALS CO., LTD.
    Inventors: CHUNG-JEN WU, MENG-YEN CHOU, CHANG-HONG HO, SHUN-JEN GHIANG, PO-YU HUANG, CHUNG-KAI CHENG
  • Flame retardant and flame-retardant resin composition containing the same and its use
    Patent number: 7297192
    Abstract: The invention relates to a flame retardant, comprising (A) a triazine-phenolic resin, (B) a nitrogen-containing compound, and (C) at least one metal compound, wherein said triazine-phenolic resin has formula (I): wherein, m and n are independently an integer ranging from 1 to 10 and R is OH, NH2, COOH, SO3H, C(O)H, or CH3CONH. The invention further relates to flame-retardant resin composition containing the above flame retardant and its use.
    Type: Grant
    Filed: May 15, 2006
    Date of Patent: November 20, 2007
    Assignee: Eternal Chemical Co., Ltd.
    Inventors: Shun-Jen Ghiang, Shih-Feng Huang, Kwang-Ming Lee
  • Flame retardant and flame-retardant resin composition containing the same and its use
    Publication number: 20060254458
    Abstract: The invention relates to a flame retardant, comprising (A) a triazine-phenolic resin, (B) a nitrogen-containing compound, and (C) at least one metal compound, wherein said triazine-phenolic resin has formula (I): wherein, m and n are independently an integer ranging from 1 to 10 and R is OH, NH2, COOH, SO3H, C(O)H, or CH3CONH. The invention further relates to flame-retardant resin composition containing the above flame retardant and its use.
    Type: Application
    Filed: May 15, 2006
    Publication date: November 16, 2006
    Inventors: Shun-Jen Ghiang, Shih-Feng Huang, Kwang-Ming Lee