Patents by Inventor Parawee Thanomsup

Parawee Thanomsup 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).

  • Publication number: 20230110767
    Abstract: A method for preparing a solid form of Bisphenol F is disclosed. The method comprises feeding Bisphenol F at a temperature in the range of 130-170° C. into an extruder; processing the fed Bisphenol F in a first mixing zone of the extruder, the first mixing zone maintained at a temperature in the range of 110-130° C., and then in a second mixing zone of the extruder, the second mixing zone maintained at a temperature in the range of 100-110° C.; conveying the processed Bisphenol F to a discharge zone of the extruder, the discharge zone maintained at a temperature in the range of 75-100° C.; discharging the processed Bisphenol F; and obtaining Bisphenol F in the solid form.
    Type: Application
    Filed: March 5, 2021
    Publication date: April 13, 2023
    Inventors: Pradip Kumar Dubey, Chandan Kumar Singh, Parawee Thanomsup