Patents by Inventor M. Phillip Jameson

M. Phillip Jameson 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).

  • Metakaolin pigment with high brightness and low abrasion and manufacture thereof from soft kaolin clays
    Patent number: 5393340
    Abstract: The invention relates to novel metakaolin pigments which are characterized by a unique combination of exceptionally high brightness and exceptionally low abrasion along with the excellent hiding power equal to that achieved by premium conventional calcined kaolin pigments. The invention relates also to a method of producing such metakaolin pigments by subjecting relatively coarse high purity and high crystallinity kaolin booklets to highly intensive media grinding to generate fine kaolin particles of reduced crystallinity, and calcining the ground particles while limiting calcination temperature and time such as to form metakaolin.
    Type: Grant
    Filed: November 9, 1993
    Date of Patent: February 28, 1995
    Assignee: Engelhard Corporation
    Inventors: Richard A. Slepetys, M. Phillip Jameson
  • Calcined kaolin clay filler pigment for enhancing opacity and printing properties of newsprint and mechanical papers
    Patent number: 5011534
    Abstract: A low-abrasion calcined kaolin opacifying pigment composed of particles in the size range of about 70 to 84% by weight finer than 2 microns and having a color defined by Hunter Trisitimulus values of "L" within the range of 92 to 94, "a" within the range of .sup.+ 1.0 to .sup.+ 2.2 and "b" within the range of .sup.+6.4 to .sup.+ 7.5. The pigment is produced by novel wet processing including high solids degritting of a high iron, high titania content Tertiary kaolin without conventional fractionation, bleaching and dewatering to isolate a fine particle size fraction, followed by spray drying, pulverization, calcination and repulverization.
    Type: Grant
    Filed: February 14, 1990
    Date of Patent: April 30, 1991
    Assignee: Engelhard Corporation
    Inventors: Richard R. Berube, John S. Babiec, Jr., M. Phillip Jameson, Andrew R. Negele, Mitchell J. Willis
  • Froth flotation
    Patent number: 4213853
    Abstract: A reagent schedule useful for the froth flotation of undeslimed cassiterite ore pulps comprises a metal salt/silicate hydrosol dispersant/depressant and a N-alkyl sulfosuccinamate collector, the sulfosuccinamate preferably being emulsified with a heavy neutral petroleum hydrocarbon oil such as mineral oil. In flotation of cassiterite from an undeslimed ore pulp, the collector is used along with a metal salt/silicate hydrosol dispersant/depressant at a pH in the range of about 4 to 7.
    Type: Grant
    Filed: January 25, 1978
    Date of Patent: July 22, 1980
    Assignee: Engelhard Minerals & Chemicals Corporation
    Inventor: M. Phillip Jameson
  • Method for producing synthetic sodium aluminosilicate ion-exchange material from calcined kaolin clay
    Patent number: 4034058
    Abstract: Kaolin clay is dehydrated at a temperature in excess of about 600.degree. C. and below 980.degree. C. and the dehydrated clay is chlorinated in a gas-solid reaction at elevated temperature to remove colored iron impurities as volatile chlorides. The dehydrated clay is then cooled and reacted with an aqueous solution of sodium hydroxide, optionally containing additional sources of alumina and silica, to produce high purity hydrated sodium aluminosilicates such as sodium zeolite A in the form of white crystals.
    Type: Grant
    Filed: June 29, 1976
    Date of Patent: July 5, 1977
    Assignee: Engelhard Minerals & Chemicals Corporation
    Inventors: M. Phillip Jameson, Fred R. Huege