Patents Assigned to Kemira Osake Yhtio
  • Coating composition and coating film composition
    Patent number: 5554439
    Abstract: Described is a coating composition comprising a liquid medium containing a titanium dioxide pigment and a coating film formation resin said titanium dioxide pigment being in the form of flaky or fin-like small pieces of silicon dioxide covered by titanium dioxide and having a diameter of 1 to 300 microns and a thickness of 0.001 to 1 micron, a considerable portion of said silicon dioxide being dissolved out from said titanium dioxide-coated silicon dioxide small pieces.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: September 10, 1996
    Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Kemira Osake Yhtio
    Inventors: Ken Ohkura, Satoru Matsuzaki, Pekka J. Eskelinen