Patents by Inventor Naoki KANEMASA

Naoki KANEMASA 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).

  • METHOD FOR PRODUCING DIVINYL ETHER COMPOUND HAVING ALKYLENE SKELETON
    Publication number: 20220033334
    Abstract: A method of purifying a divinyl ether compound having an alkylene skeleton may take place with low energy and in a simplified manner. Such a method for producing a divinyl ether compound may include: reacting a compound of formula (1) wherein R1 is an alkylene group having 4 to 20 carbon atoms, with acetylene by using an alkali metal catalyst; and purifying the divinyl ether compound of formula (2) which is obtained in the reacting, without an extraction.
    Type: Application
    Filed: November 26, 2019
    Publication date: February 3, 2022
    Applicant: MARUZEN PETROCHEMICAL CO., LTD.
    Inventors: Takashi NANIKI, Ayato TAKAYAMA, Wataru TSUCHIDA, Jun ITO, Takashi TAKAHASHI, Naoki KANEMASA