Patents by Inventor Stephen Leeming

Stephen Leeming 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).

  • Liquid formulation
    Patent number: 9006301
    Abstract: A formulation for foaming a thermoplastic polymer, for example PVC, comprises a carrier, exothermic and endothermic chemical blowing agents and 1 wt %, preferably less than 0.2 wt % of water. The liquid formulation can readily be used for foaming PVC and other thermoplastics.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: April 14, 2015
    Assignee: Colormatrix Holdings, Inc.
    Inventors: Stephen Leeming, Mark Dixon, Andrew Overend
  • LIQUID FORMULATION
    Publication number: 20120252913
    Abstract: A formulation for foaming a thermoplastic polymer, for example PVC, comprises a carrier, exothermic and endothermic chemical blowing agents and 1 wt %, preferably less than 0.2 wt % of water. The liquid formulation can readily be used for foaming PVC and other thermoplastics.
    Type: Application
    Filed: April 16, 2012
    Publication date: October 4, 2012
    Inventors: Stephen Leeming, Mark Dixon, Andrew Overend
  • Polymeric Materials
    Publication number: 20090062443
    Abstract: There is described the use of an acetaldehyde decreasing compound in a thermoplastic composition which comprises: (i) a polyester; and (ii) at least one property improving material selected from a compound containing an amino moiety, a nano clay and/or a quaternary ammonium compound; for reducing the degree of discolouration and/or increasing the degree of light transmission of an article formed from the thermoplastic composition. A preferred acetaldehyde decreasing compound is anthranilamide.
    Type: Application
    Filed: December 22, 2006
    Publication date: March 5, 2009
    Inventors: David Kemmish, Steven John Moloney, Stephen Leeming, Gonzalo Sandoval
  • Organic semiconductor layers
    Publication number: 20080009625
    Abstract: An organic semiconducting layer formulation, which comprises: an organic binder which has a permittivity, ?, at 1,000 Hz of 3.
    Type: Application
    Filed: July 9, 2007
    Publication date: January 10, 2008
    Inventors: Beverley Brown, Janos Veres, Remi Anemian, Richard Williams, Simon Ogier, Stephen Leeming
  • ORGANIC SEMICONDUCTING LAYERS
    Publication number: 20070137520
    Abstract: An organic semiconducting layer formulation, which comprises: an organic binder which has a permittivity, ?, at 1,000 Hz of 3.
    Type: Application
    Filed: February 6, 2007
    Publication date: June 21, 2007
    Inventors: Beverley Brown, Janos Veres, Remi Anemian, Richard Williams, Simon Ogier, Stephen Leeming
  • Organic semiconducting layers
    Publication number: 20070102696
    Abstract: An organic semiconducting layer formulation, which comprises: an organic binder which has a permittivity, ?, at 1,000 Hz of 3.
    Type: Application
    Filed: November 25, 2004
    Publication date: May 10, 2007
    Inventors: Beverley Brown, Janos Veres, Remi Anemian, Richard Williams, Simon Ogier, Stephen Leeming
  • Organic semiconducting materials
    Publication number: 20060155040
    Abstract: A composition for use as an organic semiconducting (OSC) material, the composition comprising: (i) at least one higher molecular weight organic semiconducting compound having a number average molecular weight (Mn) of at least 5000, and (ii) at least one lower molecular weight organic semiconducting compound having a number average molecular weight (Mn) of 1000 or less. Use of the composition in an electronic device, e.g. FET or OLED.
    Type: Application
    Filed: December 18, 2003
    Publication date: July 13, 2006
    Inventors: Janos Veres, Paul Brookes, Richard Williams, Simon Ogier, Soad Mohlaldin-Khaffaf, Stephen Leeming
  • Organic field effect transistor with an organic dielectric
    Publication number: 20050104058
    Abstract: A process of manufacturing an organic field effect device is provided comprising the steps of (a) depositing from a solution an organic semiconductor layer; and (b) depositing from a solution a layer of low permittivity insulating material forming at least a part of a gate insulator, such that the low permittivity insulating material is in contact with the organic semiconductor layer, wherein the low permittivity insulating material is of relative permittivity from 1.1 to below 3.0. In addition, an organic field effect device manufactured by the process is provided.
    Type: Application
    Filed: November 21, 2002
    Publication date: May 19, 2005
    Inventors: Janos Veres, Simon Ogier, Soad Mohialdin-Khaffaf, Stephen Leeming