Patents Assigned to Jorax GmbH
  • Process for enhancing the whiteness, brightness and chromaticity of fillers and pigments
    Patent number: 5846382
    Abstract: The invention relates to the addition of sulfonated zinc, manganese, or aluminum phthalocyanines to inorganic fillers and pigments for enhancing their whiteness, brightness and chromaticity, as well as to the fillers and pigments and mixtures thereof so obtained, and to the use thereof in e.g. paper manufacture.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: December 8, 1998
    Assignee: Jorax GmbH
    Inventor: Axel von Raven