Patents by Inventor Michael P. Diebold

Michael P. Diebold 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 conditioning titanium dioxide pigments
    Publication number: 20040250735
    Abstract: This invention relates to a process for preparing conditioned titanium dioxide pigments comprising (a) during pigment manufacture, admixing the following components to form a conditioned pigment:(1) a crude titanium dioxide pigment material; (2) at least about 0.1% by weight, relative to the inorganic pigment, of one or more copolymer dispersants; and(3) an optional processing liquid (preferably water); and, (b) isolating the conditioned pigment as dry powder.
    Type: Application
    Filed: November 19, 2003
    Publication date: December 16, 2004
    Inventors: Patrick F. McIntyre, Karyn B. Visscher, Michael P. Diebold, Brian W. Sullivan
  • Method for conditioning titanium dioxide pigments
    Publication number: 20030108667
    Abstract: This invention relates to a process for preparing conditioned titanium dioxide pigments comprising
    Type: Application
    Filed: July 22, 2002
    Publication date: June 12, 2003
    Inventors: Patrick F. McIntyre, Karyn B. Visscher, Michael P. Diebold, Brian W. Sullivan
  • Continuous wet treatment process to prepare durable, high gloss titanium dioxide pigment
    Patent number: 5993533
    Abstract: A process is provided to prepare durable, high gloss titanium dioxide pigments by a continuous wet treatment process which involves curing of a silica coating at pH of between 7.0 and 8.5. Pigment prepared in this fashion is substantially free from Al(OH).sub.3 impurities and has excellent performance properties in high quality latex paint formulations.
    Type: Grant
    Filed: July 2, 1998
    Date of Patent: November 30, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Michael P Diebold, Charles Robert Bettler, Phillip Martin Niedenzu, Anhtony John Coombe, John Phillip Lanci, Sr.
  • Separation of chloropentafluoroethane from pentafluoroethane
    Patent number: 5585529
    Abstract: Separation of CClF.sub.2 CF.sub.3 from CHF.sub.2 CF.sub.3 is effectively achieved using either acidic inorganic molecular sieves, non-acidic silicate molecular sieves, or activated carbon.
    Type: Grant
    Filed: November 28, 1995
    Date of Patent: December 17, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: David R. Corbin, Michael P. Diebold, Barry A. Mahler
  • High gloss durable TiO.sub.2 pigment
    Patent number: 5554216
    Abstract: A coated TiO.sub.2 pigment is disclosed with coatings of porous alumina and dense alumina, such dense alumina being formed in the presence of soluble molybdate.
    Type: Grant
    Filed: December 15, 1994
    Date of Patent: September 10, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Andrejs Baidins, Michael P. Diebold