Patents by Inventor Dianne Beth Shirley

Dianne Beth Shirley 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).

  • Colour changing composition and colouring polymeric articles made therefrom
    Publication number: 20040076909
    Abstract: A process is provided for producing a polymeric layer having a desired image thereon or a three dimensional article comprising a number of such layers in which a layer of a liquid photocurable composition which comprises photo colourable particles is cured by light and selected areas thereof are irradiated with light of a different dose, thereby forming the desired image which composition comprises particles dispersed in it which are micro-capsules containing a photosensitive colour changing composition within a barrier layer which is substantially impermeable to the components of the colour changing composition or are solid particles comprising an immobilised photosensitive colour changing composition. The process permits the use of the same initiating mechanism to cure the resin and to change the colour of the particles.
    Type: Application
    Filed: October 10, 2003
    Publication date: April 22, 2004
    Inventors: Dianne Beth Shirley, Ian Malcolm Shirley, Ajay Haridas Popat, Martin Russell Edwards, Kevin Thomas McAloon, Herbert Benson Scher
  • Color changing composition and coloring polymeric articles made therefrom
    Patent number: 6649311
    Abstract: A process is provided for producing a polymeric layer having a desired image thereon or a three dimensional article comprising a number of such layers in which a layer of a liquid photocurable composition which comprises photo colorable particles is cured by light and selected areas thereof are irradiated with light of a different dose, thereby forming the desired image which composition comprises particles dispersed in it which are micro-capsules containing a photosensitive color changing composition within a barrier layer which is substantially impermeable to the components of the color changing composition or are solid particles comprising an immobilized photosensitive color changing composition. The process permits the use of the same initiating mechanism to cure the resin and to change the color of the particles.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: November 18, 2003
    Assignee: Vantico Limited
    Inventors: Dianne Beth Shirley, Ian Malcolm Shirley, Ajay Haridas Popat, Martin Russell Edwards, Kevin Thomas McAloon, Herbert Benson Scher
  • Variable release microcapsules
    Patent number: 6485736
    Abstract: A novel microcapsule comprising a liquid core material which is substantially insoluble in water and enclosed within a solid permeable shell of a polymer resin containing disulfide linkages is disclosed. The process for producing such microcapsules is likewise disclosed.
    Type: Grant
    Filed: September 7, 2000
    Date of Patent: November 26, 2002
    Assignee: Syngenta Ltd.
    Inventors: Ian Malcolm Shirley, Juanita Elena Van Koppenhagen, Herbert Benson Scher, Richard Follows, Philip Wade, Fergus Gerard Paul Earley, Dianne Beth Shirley