Patents by Inventor Wouter Ijdo

Wouter Ijdo 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).

  • Viscosity stable smectite clay slurries
    Patent number: 7258733
    Abstract: A clay slurry is described using smectite clay, water, and a defined phosphonate additive that is hydrolytically stable over time. The viscosity of the clay slurry remains pourable and relatively unchanged over time compared to prior art slurries. The slurry is useful to provide rheological control to paints and coatings and is particularly useful as an anti-bleed additive for concrete.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: August 21, 2007
    Assignee: Elementis Specialties, Inc.
    Inventors: Wouter Ijdo, Wilbur S. Mardis, Fred Whitton
  • Method to assess organoclay exfoliation and orientation in organoclay/polymer composites
    Publication number: 20060292697
    Abstract: A method for determining degree of organoclay delamination and degree of layer alignment in a polymer organoclay nanocomposite comprising one or more infrared light spectral measurements selected from the group consisting of (A) Si—O absorption bandwidth, (B) Si—O absorption band intensity, (C) Si—O absorption band area, and (D) Si—O absorption anisotropy.
    Type: Application
    Filed: June 24, 2005
    Publication date: December 28, 2006
    Applicant: Elementis Specialties, Inc.
    Inventors: Wouter Ijdo, Steven Kemnetz, Wilbur Mardis, Daphne Benderly
  • Paint formulations containing hectorite compositions
    Publication number: 20050109239
    Abstract: Novel paint formulations are described containing hectorite and phosphonate additives. The paint formulations are useful for a wide variety of paints and coatings particularly those are applied by spraying and are particularly useful for metallic coating formulations applied to automobiles.
    Type: Application
    Filed: November 21, 2003
    Publication date: May 26, 2005
    Inventors: Chris Bradford, Wouter Ijdo, Douglas Smith, Konstadinos Markou, Joerg Bungarten
  • Viscosity stable smectite clay slurries
    Publication number: 20040016369
    Abstract: A clay slurry is described using smectite clay, water, and a defined phosphonate additive that is hydrolytically stable over time. The viscosity of the clay slurry remains pourable and relatively unchanged over time compared to prior art slurries. The slurry is useful to provide rheological control to paints and coatings and is particularly useful as an anti-bleed additive for concrete.
    Type: Application
    Filed: July 17, 2003
    Publication date: January 29, 2004
    Inventors: Wouter Ijdo, Wilbur S. Mardis, Fred Whitton
  • Viscosity stable smectite clay slurries
    Publication number: 20030047117
    Abstract: A clay slurry is described using smectite clay, water, and a defined phosphonate additive that is hydrolytically stable over time. The viscosity of the clay slurry remains pourable and relatively unchanged over time compared to prior art slurries. The slurry is useful to provide Theological control to paints and coatings and is particularly useful as an anti-bleed additive for concrete.
    Type: Application
    Filed: August 20, 2002
    Publication date: March 13, 2003
    Applicant: Elementis Specialties, Inc.
    Inventors: Wouter Ijdo, Wilbur S. Mardis, Fred Whitton
  • Viscosity stable smectite clay slurries
    Publication number: 20020144630
    Abstract: A clay slurry is described using smectite clay, water, and a defined phosphonate additive that is hydrolytically stable over time. The viscosity of the clay slurry remains pourable and relatively unchanged over time compared to prior art slurries. The slurry is useful to provide rheological control to paints and coatings and is particularly useful as an anti-bleed additive for concrete.
    Type: Application
    Filed: January 8, 2001
    Publication date: October 10, 2002
    Applicant: Elementis Specialties, Inc.
    Inventors: Wouter Ijdo, Wilbur S. Mardis, Fred Whitton