Patents Assigned to Savicell SpA
  • Aqueous suspension providing high opacity to paper
    Publication number: 20060201646
    Abstract: The addition of small quantities of at least one additive to calcium sulfate prior to addition of the calcium sulfate to the cellulose fiber solution for paper manufacture has been found to significantly increase its opacifying capacity. Suitable additives for this invention include: kaolin, calcium carbonate, talc, titanium dioxide, aluminum silicate, calcium silicate, other silicates and/or their mixtures.
    Type: Application
    Filed: May 11, 2006
    Publication date: September 14, 2006
    Applicant: Savicell SpA
    Inventor: Josep Gussinyer Canadell