Patents Assigned to Nippon Aersoil Co., Ltd.
  • Surface-modified metal oxide fine particles and process for producing the same
    Patent number: 5843525
    Abstract: By treating metal oxide fine particles having a specific surface area of 5 to 500 m.sup.2 /g with a silane coupling agent and then further treating the fine particles with a reactive group-terminated organopolysiloxane, the organopolysiloxane is stably bonded to the surface of the powder particles, to thereby improve stability of the modifying effect against the elapse of time and durability.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: December 1, 1998
    Assignee: Nippon Aersoil Co., Ltd.
    Inventors: Takeyoshi Shibasaki, Masamichi Murota