Patents by Inventor Yi-Cang Lai

Yi-Cang Lai 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 COMPOSITION AND METHOD OF PREPARING THE SAME
    Publication number: 20230127585
    Abstract: A method of preparing a thermoplastic composition is provided. The method includes the following steps. A polyetherimide or a polyphenylene sulfide is provided. A polyimide is provided, wherein the glass transition temperature of the polyimide is between 128° C. and 169° C., the 10% thermogravimetric loss temperature of the polyimide is between 490° C. and 534° C., and when the polyimide is dissolved in N-methyl-2-pyrrolidone and the solid content of the polyimide is 30 wt %, the viscosity of the polyimide is between 100 cP and 250 cP. A melt process is performed to mix the polyetherimide and the polyimide or mix the polyphenylene sulfide and the polyimide to form a thermoplastic composition. Further, a thermoplastic composition is also provided.
    Type: Application
    Filed: December 21, 2022
    Publication date: April 27, 2023
    Applicant: Taiwan Textile Research Institute
    Inventors: Shang-Chih Chou, Shao-Yen Chang, Chun-Hung Lin, Yuan-Pei Liao, Yi-Cang Lai
  • Fiber masterbatch and melt spun fiber
    Patent number: 11572639
    Abstract: A fiber masterbatch including a polyetherimide, a polyethylene terephthalate, and a polyimide is provided. A glass transition temperature of the polyimide is between 140° C. and 170° C., a 10% thermogravimetric loss temperature of the polyimide is between 500° C. and 550° C., and when the polyimide is dissolved in N-methyl-2-pyrrolidone and a solid content of the polyimide is 15 wt %, a viscosity of the polyimide is between 80 cP and 230 cP. A melt spun fiber obtained by using the fiber masterbatch is also provided.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: February 7, 2023
    Assignee: Taiwan Textile Research Institute
    Inventors: Shang-Chih Chou, Shao-Yen Chang, Chun-Hung Lin, Yuan-Pei Liao, Yi-Cang Lai
  • FIBER MASTERBATCH AND MELT SPUN FIBER
    Publication number: 20210301426
    Abstract: A fiber masterbatch including a polyetherimide, a polyethylene terephthalate, and a polyimide is provided. A glass transition temperature of the polyimide is between 140° C. and 170° C., a 10% thermogravimetric loss temperature of the polyimide is between 500° C. and 550° C., and when the polyimide is dissolved in N-methyl-2-pyrrolidone and a solid content of the polyimide is 15 wt %, a viscosity of the polyimide is between 80 cP and 230 cP. A melt spun fiber obtained by using the fiber masterbatch is also provided.
    Type: Application
    Filed: September 29, 2020
    Publication date: September 30, 2021
    Applicant: Taiwan Textile Research Institute
    Inventors: Shang-Chih Chou, Shao-Yen Chang, Chun-Hung Lin, Yuan-Pei Liao, Yi-Cang Lai
  • MELTBLOWN NONWOVEN FABRIC
    Publication number: 20210102321
    Abstract: A meltblown nonwoven fabric is provided. The meltblown nonwoven fabric includes a plurality of meltblown fibers adhered to each other. The material of each of the meltblown fibers includes a polyetherimide and a polyimide, or the material of each of the meltblown fibers includes a polyphenylene sulfide and a polyimide, wherein the glass transition temperature of the polyimide is between 128° C. and 169° C., the 10% thermogravimetric loss temperature of the polyimide is between 490° C. and 534° C., and when the polyimide is dissolved in N-methyl-2-pyrrolidone and the solid content of the polyimide is 30 wt %, the viscosity of the polyimide is between 100 cP and 250 cP.
    Type: Application
    Filed: February 5, 2020
    Publication date: April 8, 2021
    Applicant: Taiwan Textile Research Institute
    Inventors: Shang-Chih Chou, Shao-Yen Chang, Chun-Hung Lin, Yuan-Pei Liao, Yi-Cang Lai
  • THERMOPLASTIC COMPOSITION AND METHOD OF PREPARING THE SAME
    Publication number: 20210017382
    Abstract: A method of preparing a thermoplastic composition is provided. The method includes the following steps. A polyetherimide or a polyphenylene sulfide is provided. A polyimide is provided, wherein the glass transition temperature of the polyimide is between 128° C. and 169° C., the 10% thermogravimetric loss temperature of the polyimide is between 490° C. and 534° C., and when the polyimide is dissolved in N-methyl-2-pyrrolidone and the solid content of the polyimide is 30 wt %, the viscosity of the polyimide is between 100 cP and 250 cP. A melt process is performed to mix the polyetherimide and the polyimide or mix the polyphenylene sulfide and the polyimide to form a thermoplastic composition. Further, a thermoplastic composition is also provided.
    Type: Application
    Filed: September 12, 2019
    Publication date: January 21, 2021
    Applicant: Taiwan Textile Research Institute
    Inventors: Shang-Chih Chou, Shao-Yen Chang, Chun-Hung Lin, Yuan-Pei Liao, Yi-Cang Lai