Patents by Inventor Richard Johannes VAN DER NET

Richard Johannes VAN DER NET 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).

  • Aqueous acidic composition for treating metal surfaces, treating method using this composition and use of treated metal surface
    Patent number: 11453947
    Abstract: An aqueous acidic composition for treating metal surfaces, the composition including the following components: a) at least one water soluble or water dispersable anionic polyelectrolyte; b) at least one organofunctional silane including one or more reactive functional groups selected from the group including amino, mercapto, methacryloxy, epoxy and vinyl; c) at least one water dispersible solid wax wherein the weight ratio between components a:b is in the range of 1:2-4:1, based on dry matter; the weight ratio between components (a+b):c is in the range of 1:3-3:1, based on dry matter, and wherein components a and b may be present—at least partially—as their graft reaction product. Another aspect is a treating method using this composition and use of the thus treated metal surface.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: September 27, 2022
    Assignee: TATA STEEL IJMUIDEN B.V.
    Inventors: Chiel Matthias Dane, Richard Johannes Van Der Net
  • AQUEOUS ACIDIC COMPOSITION FOR TREATING METAL SURFACES, TREATING METHOD USING THIS COMPOSITION AND USE OF TREATED METAL SURFACE
    Publication number: 20200048775
    Abstract: An aqueous acidic composition for treating metal surfaces, the composition including the following components: a) at least one water soluble or water dispersable anionic polyelectrolyte; b) at least one organofunctional silane including one or more reactive functional groups selected from the group including amino, mercapto, methacryloxy, epoxy and vinyl; c) at least one water dispersible solid wax wherein the weight ratio between components a:b is in the range of 1:2-4:1, based on dry matter; the weight ratio between components (a+b):c is in the range of 1:3-3:1, based on dry matter, and wherein components a and b may be present—at least partially—as their graft reaction product. Another aspect is a treating method using this composition and use of the thus treated metal surface.
    Type: Application
    Filed: March 27, 2018
    Publication date: February 13, 2020
    Applicant: TATA STEEL IJMUIDEN B.V.
    Inventors: Chiel Matthias DANE, Richard Johannes VAN DER NET