Patents by Inventor Barry W. Preston

Barry W. Preston 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).

  • Patent number: 6663963
    Abstract: Very high structure, hybrid amorphous silica products (geltates) having very high absorptivity, in which the hybrid silica product has a % carrying capacity DBP value greater than 76.0 and a linseed oil absorption value exceeding 250 cc/100 g, and a production methodology therefor.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: December 16, 2003
    Assignee: J. M. Huber Corporation
    Inventors: Barry W. Preston, William C. Fultz
  • Publication number: 20030152771
    Abstract: Very high structure, hybrid amorphous silica products (geltates) having very high absorptivity, in which the hybrid silica product has a % carrying capacity DBP value greater than 76.0 and a linseed oil absorption value exceeding 250 cc/100 g, and a production methodology therefor.
    Type: Application
    Filed: February 21, 2003
    Publication date: August 14, 2003
    Inventors: Barry W. Preston, William C. Fultz
  • Patent number: 6573032
    Abstract: Very high structure, hybrid amorphous silica products (geltates) having very high absorptivity, in which the hybrid silica product has a % carrying capacity DBP value greater than 76.0 and a linseed oil absorption value exceeding 250 cc/100 g, and a production methodology therefor.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: June 3, 2003
    Assignee: J. M. Huber Corporation
    Inventors: Barry W. Preston, William C. Fultz
  • Patent number: 6171384
    Abstract: An amorphous silicate pigment having a pore volume of at least about 4.0 ml/g as measured by mercury intrusion, a BET surface area of at least about 300 m2/g, and an Al2O3 content of about 2.0-10.0 wt % is provided. The invention can be successfully used in recording media coatings, particularly coatings for recording media used in ink jet printing systems.
    Type: Grant
    Filed: May 4, 1998
    Date of Patent: January 9, 2001
    Assignee: J. M. Huber Corp.
    Inventors: Donald P. Conley, Gary W. Loock, Barry W. Preston, Michael C. Withiam
  • Patent number: 5312859
    Abstract: A method for stabilizing or inactivating a detrimental and moiety in curable, cross-linkable, and thermoplastic polymers which comprises mixing 100 parts by weight of acid moiety containing polymer with from about 0.1 to about 40 parts by weight of tricalcium aluminum hexahydrate and the resulting composition are disclosed.
    Type: Grant
    Filed: February 19, 1992
    Date of Patent: May 17, 1994
    Assignee: J. M. Huber Corporation
    Inventors: Barry W. Preston, Robin F. Lewis, Gerard Mooney, Suneet K. Sikka, Claude R. Andrews
  • Patent number: 5250279
    Abstract: An improved method for the production of synthetic hydrotalcites having high purity (99+%) and small particle size (<2 microns) is disclosed. This method used inexpensive and available reactants and is suitable for commercial scale production. A source of magnesium, such as magnesium hydroxide; a source of aluminum from a mixture of alumina trihydrate and an alkali metal aluminate; and a source of carbonate, such as sodium bicarbonate, are reacted under hydrothermal conditions at a temperature of between 160.degree.-200.degree. C. to produce synthetic hydrotalcite.
    Type: Grant
    Filed: December 20, 1991
    Date of Patent: October 5, 1993
    Assignee: J. M. Huber Corporation
    Inventors: Barry W. Preston, John A. Kosin, Claude R. Andrews
  • Patent number: 5075087
    Abstract: A phosphate-containing synthetic hydrotalcite of the following empirical formula:xMgO.Al.sub.2 O.sub.3.yPO.sub.4.zH.sub.2 Owherein, x, y and z are integers indicating the number of moles present of MgO, PO.sub.4 and H.sub.2 O, respectively. The phosphate-containing hydrotalcite being prepared by the addition of sufficient phosphoric acid to the reaction mixture to liberate carbon dioxide. The phosphate-containing hydrotalcite improves the flame retardant characteristics by providing char promotion to the system.
    Type: Grant
    Filed: October 5, 1989
    Date of Patent: December 24, 1991
    Assignee: J. M. Huber Corporation
    Inventors: John A. Kosin, Barry W. Preston, David N. Wallace
  • Patent number: 4883533
    Abstract: A phosphate-containing synthetic hydrotalcite of the following empirical formula:xMgO.multidot.Al.sub.2 O.sub.3 .multidot.yPO.sub.4 .multidot.zH.sub.2 Owherein, x, y and z are integers indicating the number of moles present of MgO, PO.sub.4 and H.sub.2 O, respectively. The phosphate-containing hydrotalcite being prepared by the addition of sufficient phosphoric acid to the reaction mixture to liberate carbon dioxide. The phosphate-containing hydrotalcite improves the flame retardant characteristics by providing char promotion to the system.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: November 28, 1989
    Assignee: J. M. Huber Corporation
    Inventors: John A. Kosin, Barry W. Preston, David N. Wallace