Patents by Inventor Oriol Gracia Grandia

Oriol Gracia Grandia has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for the chemical treatment of starch for applying in sheets of paper
    Patent number: 8840760
    Abstract: The object of the process of the invention is to increase the retention of starch in the sheet of paper in order to reduce operating costs and increase the physical characteristics of the paper. To that end, it has been envisaged that trivalent cationic salts are added, metered into the slurry or in the process for obtaining starch in powder form or by mixing a percentage of trivalent salts in powder form with the starch in powder form, seeking the solution of said salts in the slurry, so that they dissolve during the dispersion of the slurry in the process for obtaining the sheet of paper. Organic polymers such as polyacrylamides, polyvinylamides and polydadmacs could optionally be applied in addition to said salts.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: September 23, 2014
    Assignee: Oriol Gracia Grandia
    Inventor: Oriol Gracia Grandia
  • METHOD FOR THE CHEMICAL TREATMENT OF STARCH FOR APPLYING IN SHEETS OF PAPER
    Publication number: 20120101195
    Abstract: The object of the process of the invention is to increase the retention of starch in the sheet of paper in order to reduce operating costs and increase the physical characteristics of the paper. To that end, it has been envisaged that trivalent cationic salts are added, metered into the slurry or in the process for obtaining starch in powder form or by mixing a percentage of trivalent salts in powder form with the starch in powder form, seeking the solution of said salts in the slurry, so that they dissolve during the dispersion of the slurry in the process for obtaining the sheet of paper. Organic polymers such as polyacrylamides, polyvinylamides and polydadmacs could optionally be applied in addition to said salts.
    Type: Application
    Filed: October 2, 2009
    Publication date: April 26, 2012
    Inventor: Oriol Gracia Grandia