Patents by Inventor Norbert Beyer

Norbert Beyer 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 coating the surface of a substrate
    Patent number: 10487214
    Abstract: A method for coating the surface of a substrate, such as inorganic particles, with a metal oxide. A suspension is formed containing the substrate, a polyvalent anion and a metal ion where the molar ratio of the polyvalent anion to the metal ion is greater than three and the metal ion is precipitated onto the substrate as a metal oxide. Preferably, the method is used to coat titanium dioxide pigment particles with aluminum oxide.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: November 26, 2019
    Assignee: Kronos International Inc
    Inventor: Norbert Beyer
  • Method for coating the surface of inorganic particles with silicon dioxide and at least one further inorganic compound
    Patent number: 9962732
    Abstract: The invention relates to a method for coating the surface of inorganic particles in an aqueous phase, particularly of titanium dioxide pigment particles, with a dense skin of silicon dioxide and at least one further inorganic compound, particularly with aluminum oxide, where the coating largely consists of separate layers. Titanium dioxide pigment particles, treated with SiO2 and Al2O3 according to the invention, are characterized by improved tinting strength, reduced acid solubility and an isoelectric point shifted towards higher pH values.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: May 8, 2018
    Assignee: Kronos International, INc.
    Inventors: Norbert Beyer, Jud-Reginauld Fidalgo-Estevez, Heiko Frahm, Siegfried Bluemel
  • Method for Coating the Surface of a Substrate
    Publication number: 20170198148
    Abstract: The invention relates to a method for coating the surface of a substrate, such as inorganic particles, with a metal oxide, wherein a reduced mass-related specific surface area of the metal oxide coating is achieved. In particular, the invention relates to the surface coating of titanium dioxide pigment particles with aluminum oxide.
    Type: Application
    Filed: December 22, 2016
    Publication date: July 13, 2017
    Inventor: Norbert Beyer
  • Method for Coating the Surface of Inorganic Particles with Silicon Dioxide and at Least One Further Inorganic Compound
    Publication number: 20160045933
    Abstract: The invention relates to a method for coating the surface of inorganic particles in an aqueous phase, particularly of titanium dioxide pigment particles, with a dense skin of silicon dioxide and at least one further inorganic compound, particularly with aluminium oxide, where the coating largely consists of separate layers. Titanium dioxide pigment particles, treated with SiO2 and Al2O3 according to the invention, are characterised by improved tinting strength, reduced acid solubility and an isoelectric point shifted towards higher pH values.
    Type: Application
    Filed: August 5, 2015
    Publication date: February 18, 2016
    Inventors: Norbert Beyer, Jud-Reginauld FidaIgo-Estevez, Heiko Frahm, Siegfried Bluemel