Patents by Inventor Timothy B Cameron

Timothy B Cameron 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).

  • Defoaming compositions for high acid strength media
    Patent number: 6544489
    Abstract: A defoaming composition useful in high strength acid media includes an ester condensate of a C12-C20 fatty acid and a at least one alcohol derivative selected from the group consisting of C1-C4 alcohol ethoxylates having at least three ethoxylate residues per molecule, C1-C4 alcohol propoxylates having at least three propoxylate residues per molecule and C1-C4 alcohol mixed ethoxylate-propoxylates having at least three total ethoxylate and propoxylate residues per molecule. The condensate is preferably liquid at room temperature and miscible with water.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: April 8, 2003
    Assignee: Custom Chemicals Corporation
    Inventor: Timothy B Cameron
  • Defoaming compositions for high acid strength media
    Publication number: 20020002206
    Abstract: A defoaming composition useful in high strength acid media includes an ester condensate of a C12-C20 fatty acid and a at least one alcohol derivative selected from the group consisting of C1-C4 alcohol ethoxylates having at least three ethoxylate residues per molecule, C1-C4 alcohol propoxylates having at least three propoxylate residues per molecule and C1-C4 alcohol mixed ethoxylate-propoxylates having at least three total ethoxylate and propoxylate residues per molecule. The condensate is preferably liquid at room temperature and miscible with water.
    Type: Application
    Filed: January 5, 2001
    Publication date: January 3, 2002
    Inventor: Timothy B. Cameron
  • Maleinized rosin containing solvent-borne alkyd resin compositions
    Patent number: 5093463
    Abstract: Solvent-borne alkyd resin compositions are disclosed comprising a high-purity maleinized rosin anhydride. Substitution of the trifunctional acid component of the alkyd resin composition with this rosin anhydride permits a reduction in the viscosity of the resin without adversely affecting the physical properties of the cured film of the resin.
    Type: Grant
    Filed: January 14, 1991
    Date of Patent: March 3, 1992
    Assignee: Westvaco Corporation
    Inventors: David E. Knox, Timothy B. Cameron
  • Rosin pentaerythritol ester preparation improvement
    Patent number: 4548746
    Abstract: Phosphinic acid (also called hypophosphorous acid), when used in very small quantities, is disclosed to act as a catalyst to accelerate the reaction rate of esterification of rosin with pentaerythritol. According to the process of the invention, a rosin is reacted with at least an equivalent amount of pentaerythritol in the presence of phosphinic acid at a temperature of from about 180.degree. C. to about 300.degree. C. When tall oil rosin is esterified by the invention process, a rosin ester is produced without appreciable color degradation.
    Type: Grant
    Filed: December 10, 1984
    Date of Patent: October 22, 1985
    Assignee: Westvaco Corporation
    Inventors: Don P. Duncan, Timothy B. Cameron