Patents by Inventor Cai Xing Simon Han

Cai Xing Simon Han 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).

  • Synthesis of N-vinyl carboxylic acid amides
    Patent number: 10696622
    Abstract: Processes and systems for producing N-vinyl carboxylic acid amides are provided herein. According to some aspects of the present invention, a process for producing an N-vinyl carboxylic acid amide is described that eliminates interim solids handling steps during formation of the intermediate compounds, thereby increasing efficiency and reducing cost. The processes and system described herein may be used for the synthesis of N-vinylformamide and its intermediates, including 1-hydroxyethylformamide and 1-alkoxyethylformamide, or for the synthesis of N-methyl,N-vinylformamide and its intermediates, including N-methyl,1-hydroxyethylformamide and N-methyl,1alkoxyethylformamide.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: June 30, 2020
    Assignee: Eastman Chemical Company
    Inventors: Kim Dumoleijn, Kristof Moonen, Alexis Henricot, Cai Xing Simon Han
  • SYNTHESIS OF N-VINYL CARBOXYLIC ACID AMIDES
    Publication number: 20180057445
    Abstract: Processes and systems for producing N-vinyl carboxylic acid amides are provided herein. According to some aspects of the present invention, a process for producing an N-vinyl carboxylic acid amide is described that eliminates interim solids handling steps during formation of the intermediate compounds, thereby increasing efficiency and reducing cost. The processes and system described herein may be used for the synthesis of N-vinylformamide and its intermediates, including 1-hydroxyethylformamide and 1-alkoxyethylformamide, or for the synthesis of N-methyl,N-vinylformamide and its intermediates, including N-methyl,1-hydroxyethylformamide and N-methyl,1alkoxyethylformamide.
    Type: Application
    Filed: August 7, 2017
    Publication date: March 1, 2018
    Applicant: Taminco BVBA
    Inventors: Kim Dumoleijn, Kristof Moonen, Alexis Henricot, Cai Xing Simon Han