Patents by Inventor Ewald Philips

Ewald Philips 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).

  • Chrome free and zinc-poor, anti-corrosive pigment mixture and method for the production and use thereof
    Patent number: 7513946
    Abstract: Chromium-free, low-zinc, corrosion-inhibiting pigment mixture (A) comprising (a1) 30% to 60% by weight of at least one calcium hydrogen phosphate pigment, (a2) 15% to 45% by weight of at least one amorphous, calcium-modified silicon dioxide, (a3) 5% to 25% by weight of at least one calcium borosilicate pigment, and (a4) 1% to 15% by weight of at least one zinc salt of an organic nitro compound with the proviso that the zinc content of (A) does not exceed 10% by weight; process for preparing it, and its use.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: April 7, 2009
    Assignee: BASF Coatings Aktiengesellschaft
    Inventors: Gisela Laumann, Ewald Philips, Andreas Vogt
  • Chromium-Free, Low Zinc, Corrosion-Inhibiting Pigment Mixture, Process For Preparing It, and Its Use
    Publication number: 20080223256
    Abstract: Chromium-free, low-zinc, corrosion-inhibiting pigment mixture (A) comprising (a1) 30% to 60% by weight of at least one calcium hydrogen phosphate pigment, (a2) 15% to 45% by weight of at least one amorphous, calcium-modified silicon dioxide, (a3) 5% to 25% by weight of at least one calcium borosilicate pigment, and (a4) 1% to 15% by weight of at least one zinc salt of an organic nitro compound with the proviso that the zinc content of (A) does not exceed 10% by weight; process for preparing it, and its use.
    Type: Application
    Filed: July 26, 2006
    Publication date: September 18, 2008
    Applicant: BASF COATINGS AKTIENGESELLSCHAFT
    Inventors: Gisela Laumann, Ewald Philips, Andreas Vogt