Patents by Inventor Milton Constantin

Milton Constantin 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).

  • Kaolin pigment products
    Patent number: 7597755
    Abstract: A pigment product for use in a coating composition to provide a gloss coating on paper, the pigment product comprising a processed particulate kaolin having a particle size distribution such that at least about 80% by weight of the particles have an equivalent spherical diameter less than about 2 p,m and in the range of from about 10% to about 20% by weight of the particles have an equivalent spherical diameter less than about 0.25 wm, the particles have a shape factor in the range of from about 20 to about 36 and the particles have a particle steepness in the range of about greater than about 35, more preferably in the range of about 35 to about 40, and wherein the kaolin is derived from a secondary kaolin source.
    Type: Grant
    Filed: August 15, 2003
    Date of Patent: October 6, 2009
    Assignee: Imerys Pigments, Inc.
    Inventors: David L. Light, Christopher R. L. Golley, Ernest Gay, Milton Constantin
  • Kaolin pigment products
    Publication number: 20060096501
    Abstract: A pigment product for use in a coating composition to provide a gloss coating on paper, the pigment product comprising a processed particulate kaolin having a particle size distribution such that at least about 80% by weight of the particles have an equivalent spherical diameter less than about 2 p,m and in the range of from about 10% to about 20% by weight of the particles have an equivalent spherical diameter less than about 0.25 wm, the particles have a shape factor in the range of from about 20 to about 36 and the particles have a particle steepness in the range of about greater than about 35, more preferably in the range of about 35 to about 40, and wherein the kaolin is derived from a secondary kaolin source.
    Type: Application
    Filed: August 15, 2003
    Publication date: May 11, 2006
    Inventors: David Light, Christopher Golley, Ernest Gay, Milton Constantin
  • Compositions and methods for making a coarse platey, high brightness kaolin product
    Patent number: 6554892
    Abstract: Coarse platey, high brightness kaolin products and methods for making the same, including combining a coarse kaolin fraction and a fine kaolin fraction, where each coarse or fine kaolin fraction may be produced by processing one or more crude kaolin samples through different stages of the methods of the present invention, by blending of one or more crude kaolin samples so processed, or as a by-product of a coarse or fine kaolin product.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: April 29, 2003
    Assignee: Imerys Kaolin, Inc.
    Inventors: John A. Manasso, Bomi M. Bilimoria, Leslie A. McLain, Milton Constantin