Patents Assigned to Colorobbia Italia S.p.A.
  • Glass-ceramics process for their preparation and use
    Patent number: 6605554
    Abstract: The present invention refers to glass-ceramics consisting of the mixtures (I): ZrO2—SiO2—MeIIO, or (II) SiO2—MeIIIO2—MeIIO, wherein: MeII is chosen in the group consisting of: Ca, Ba, Mg, Zn or mixture thereof; MeIII is chosen in the group consisting of Al, B or mixtures thereof; each of the above said constituents being present in determined quantities; the invention refers also to a process for preparing the glass-ceramics above defined; porcelain stonewares and glazes containing them and their use for preparing ceramic items.
    Type: Grant
    Filed: February 7, 2000
    Date of Patent: August 12, 2003
    Assignee: Colorobbia Italia S.p.A.
    Inventors: Marco Bitossi, Giovanni Baldi, Davide Settembre Blundo, Enrico Generali