Patents by Inventor Shengjun Yao

Shengjun Yao 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).

  • Composition and method for reducing aldehyde content in polyurethane foams
    Patent number: 11629251
    Abstract: A method for producing a polyurethane polymer comprises the steps of: (a) providing a polyol; (b) providing an additive composition comprising a polyethylenimine compound and a sulfite compound; (c) combining the polyol and the additive composition to produce a polyol composition; (d) providing an isocyanate compound; and (e) combining and reacting the polyol composition and the isocyanate composition to produce a polyurethane polymer.
    Type: Grant
    Filed: April 2, 2021
    Date of Patent: April 18, 2023
    Assignee: Milliken & Company
    Inventors: Chunping Xie, Shengjun Yao
  • COMPOSITION AND METHOD FOR REDUCING ALDEHYDE CONTENT IN POLYURETHANE FOAMS
    Publication number: 20210222004
    Abstract: A method for producing a polyurethane polymer comprises the steps of: (a) providing a polyol; (b) providing an additive composition comprising a polyethylenimine compound and a sulfite compound; (c) combining the polyol and the additive composition to produce a polyol composition; (d) providing an isocyanate compound; and (e) combining and reacting the polyol composition and the isocyanate composition to produce a polyurethane polymer.
    Type: Application
    Filed: April 2, 2021
    Publication date: July 22, 2021
    Inventors: Chunping Xie, Shengjun Yao
  • Composition and method for reducing aldehyde content in polyurethane foams
    Patent number: 10968349
    Abstract: A composition comprises a polyol, a polyethylenimine compound, and a sulfite compound. A method for producing a polyurethane polymer comprises the steps of: (a) providing a polyol; (b) providing an additive composition comprising a polyethylenimine compound and a sulfite compound; (c) combining the polyol and the additive composition to produce a polyol composition; (d) providing an isocyanate compound; and (e) combining and reacting the polyol composition and the isocyanate composition to produce a polyurethane polymer.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: April 6, 2021
    Assignee: Milliken & Company
    Inventors: Chunping Xie, Shengjun Yao
  • COMPOSITION AND METHOD FOR REDUCING ALDEHYDE CONTENT IN POLYURETHANE FOAMS
    Publication number: 20190300706
    Abstract: A composition comprises a polyol, a polyethylenimine compound, and a sulfite compound. A method for producing a polyurethane polymer comprises the steps of: (a) providing a polyol; (b) providing an additive composition comprising a polyethylenimine compound and a sulfite compound; (c) combining the polyol and the additive composition to produce a polyol composition; (d) providing an isocyanate compound; and (e) combining and reacting the polyol composition and the isocyanate composition to produce a polyurethane polymer.
    Type: Application
    Filed: March 4, 2019
    Publication date: October 3, 2019
    Inventors: Chunping Xie, Shengjun Yao