Patents by Inventor Kenji Kanezaki

Kenji Kanezaki 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).

  • Process for preparing p-vinylphenol polymer
    Patent number: 4028340
    Abstract: A process for preparing a high purity p-vinylphenol polymer which comprises dehydrogenating crude p-ethylphenol containing at least one of m-ethylphenol and o-ethylphenol to convert the ethylphenol(s) to vinylphenol(s), polymerizing the resulting crude product without removing the o- and/or m-vinylphenols, and purifying the resulting polymerization product.
    Type: Grant
    Filed: February 27, 1976
    Date of Patent: June 7, 1977
    Assignee: Maruzen Oil Co. Ltd.
    Inventor: Kenji Kanezaki