Patents by Inventor Arata HIRAYAMA

Arata HIRAYAMA 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: 20230278947
    Abstract: A method for producing a tertiary amine composition that includes the following Steps (1) to (3); Step (1): an amination step of reacting an aliphatic alcohol or an aliphatic aldehyde having 8 or more and 36 or less carbon atoms with dimethylamine in the presence of a metal catalyst; Step (2): a distillation step of separating a reaction liquid obtained through the Step (1) by distillation into a distilled product containing a low-boiling-point compound and a concentrate; and Step (3): a centrifugation step of separating the concentrate obtained through the Step (2) by a centrifugal force into a precipitate and a liquid phase containing the tertiary amine composition.
    Type: Application
    Filed: September 14, 2021
    Publication date: September 7, 2023
    Applicant: KAO CORPORATION
    Inventors: Arata HIRAYAMA, Takeshi KOBAYASHI, Gosuke TATENO, Thomas MYRDEK