Patents by Inventor Minori Kondoh

Minori Kondoh 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 producing modified cross-linked polymer particles
    Patent number: 5773519
    Abstract: A process for producing modified cross-linked polymer particles which comprises polymerizing 0.01 to 900 parts by weight of (B) a monomer component containing 50% by weight or more of at least one member selected from the group consisting of aromatic monoalkenyl compounds, acrylic acid esters, methacrylic acid esters, fluoroalkyl acrylates, fluoroalkyl methacrylates, unsaturated carboxylic acids, conjugated diene compounds, vinyl esters and organosilane compounds in the presence of 100 parts by weight of (A) cross-linked polymer particles obtained by polymerizing a monomer mixture comprising 50% by weight or more of at least one cross-linking monomer selected from the group consisting of divinylbenzene, ethylene glycol dimethacrylate and trimethylolpropane trimethacrylate.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: June 30, 1998
    Assignee: Japan Synthetic Rubber Co., Ltd.
    Inventors: Nobuyuki Ito, Masayuki Hattori, Tohru Masukawa, Satoshi Ishikawa, Minori Kondoh