Patents by Inventor Te-Hsin Tsai

Te-Hsin Tsai 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 an elastic nonwoven web
    Patent number: 8123890
    Abstract: A process of preparing an elastic thermally bonded nonwoven web, whereby the process is characterized by the following steps: (i) providing a thermally bonded nonwoven precursor web containing thermoplastic fibers, (ii) subjecting the precursor web of step (i) to a drawing treatment in a machine direction at a drawing rate of from 45 to 70%, and a strain rate within a range of from 1000 to 2400%/min at a temperature between the softening point and the melting point of the fibers for preparing the elastic thermally bonded nonwoven web.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: February 28, 2012
    Assignee: E.I. Dupont de Nemours and Company
    Inventors: De-Sheng Tsai, Te-Hsin Tsai
  • Process for preparing an elastic nonwoven web
    Patent number: 7713894
    Abstract: A process of preparing an elastic thermally bonded nonwoven web, whereby the process is characterized by the following steps: (i) providing a thermally bonded nonwoven precursor web containing thermoplastic fibers, (ii) subjecting the precursor web of step (i) to a drawing treatment in a machine direction at a drawing rate of from 45 to 70%, and a strain rate within a range of from 1000 to 2400%/min at a temperature between the softening point and the melting point of the fibers for preparing the elastic thermally bonded nonwoven web.
    Type: Grant
    Filed: February 18, 2004
    Date of Patent: May 11, 2010
    Assignee: E.I. Dupont De Nemours and Company
    Inventors: De-Sheng Tsai, Te-Hsin Tsai
  • PROCESS FOR PREPARING AN ELASTIC NONWOVEN WEB
    Publication number: 20100109193
    Abstract: A process of preparing an elastic thermally bonded nonwoven web, whereby the process is characterized by the following steps: (i) providing a thermally bonded nonwoven precursor web containing thermoplastic fibers, (ii) subjecting the precursor web of step (i) to a drawing treatment in a machine direction at a drawing rate of from 45 to 70%, and a strain rate within a range of from 1000 to 2400%/min at a temperature between the softening point and the melting point of the fibers for preparing the elastic thermally bonded nonwoven web.
    Type: Application
    Filed: January 14, 2010
    Publication date: May 6, 2010
    Inventors: De-Sheng Tsai, Te-Hsin Tsai
  • Process for preparing an elastic nonwoven web
    Publication number: 20050124251
    Abstract: A process of preparing an elastic thermally bonded nonwoven web, whereby the process is characterized by the following steps: (i) providing a thermally bonded nonwoven precursor web containing thermoplastic fibers, (ii) subjecting the precursor web of step (i) to a drawing treatment in a machine direction at a drawing rate of from 45 to 70%, and a strain rate within a range of from 1000 to 2400%/min at a temperature between the softening point and the melting point of the fibers for preparing the elastic thermally bonded nonwoven web.
    Type: Application
    Filed: February 18, 2004
    Publication date: June 9, 2005
    Inventors: De-Sheng Tsai, Te-Hsin Tsai