Patents by Inventor Cameron Tristram

Cameron Tristram 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: 10544323
    Abstract: A dry pigment paint system includes dry pigment doses that may be used alone or combined with other dry pigment doses to provide a desired color when dispersed in a paint base. The system may use a plurality of dry pigment formulations, with each dry pigment formulation consisting of one or more dry pigments, generally a plurality of dry pigments. Each dry pigment dose may include a single dry pigment formulation. Each does may be a tablet, capsule or sachet. Various dose forms and dispensing systems are disclosed. Formulations of easily dispersible (ED) pigments comprising a combination of a carboxylic acid polymer and a non-ionic alkoxylated surfactant are also disclosed. The combination is used in the formulation of a plurality of pigments. The formulations are suitable for mixing with a base medium at the point-of-sale (PoS) or by the end user.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: January 28, 2020
    Assignee: DRIKOLOR INC
    Inventors: Rachel D'Arcy Lacy, Nigel Lacy, Kristian Hugh Darcy Slack, Jamie Sinclair McLellan, Simon Francis Robert Hinkley, Cameron Tristram
  • Patent number: 9458248
    Abstract: The present invention relates to cellulose mixed esters, processes for preparing these and uses of the cellulose mixed esters, for example in coating compositions. The cellulose mixed esters have glass transition temperatures that fall within an appropriate range to allow for film formation to occur at ambient temperatures and have a total degree of substitution per anhydroglucose unit of about 2.5 to about 3.5; a residual hydroxyl functionality per anhydroglucose unit of 0 to about 0.5; a degree of substitution per anhydroglucose unit by C2-C6 ester groups of about 0.5 to about 2.8; and a degree of substitution per anhydroglucose unit by Ievulinyl ester groups of about 0.2 to about 2.6.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: October 4, 2016
    Assignee: Resene Paints Limited
    Inventors: Mark Glenny, Colin Gooch, Simon Hinkley, Jennifer Mason, Cameron Tristram, Dennis Williams
  • Publication number: 20140331895
    Abstract: The present invention relates to cellulose mixed esters, processes for preparing these and uses of the cellulose mixed esters, for example in coating compositions. The cellulose mixed esters have glass transition temperatures that fall within an appropriate range to allow for film formation to occur at ambient temperatures and have a total degree of substitution per anhydroglucose unit of about 2.5 to about 3.5; a residual hydroxyl functionality per anhydroglucose unit of 0 to about 0.5; a degree of substitution per anhydroglucose unit by C2-C6 ester groups of about 0.5 to about 2.8; and a degree of substitution per anhydroglucose unit by Ievulinyl ester groups of about 0.2 to about 2.6.
    Type: Application
    Filed: December 5, 2012
    Publication date: November 13, 2014
    Inventors: Mark Glenny, Colin Gooch, Simon Hinkley, Jennifer Mason, Cameron Tristram, Dennis Williams