Patents by Inventor Lorna M. Kessell

Lorna M. Kessell 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).

  • Metal Oxide Dispersion
    Publication number: 20090191273
    Abstract: A dispersion contains particles of metal oxide having a median volume particle diameter in the range from 24 to 42 nm which are dispersed in a medium which includes a mixture of at least one polar material having an interfacial tension of less than 30 mNm?1 and at least one siloxane fluid. The dispersion can be used in a sunscreen product that exhibits effective UV protection, transparency, and improved skin feel.
    Type: Application
    Filed: September 20, 2006
    Publication date: July 30, 2009
    Applicant: Croda International PLC
    Inventors: Lorna M. Kessell, Benjamin J. Naden
  • Water-In-Silicone Oil Emulsion for Use as a Sunscreen Product
    Publication number: 20080226727
    Abstract: A water-in-silicone oil emulsion contains (i) in the range from 0.1 to 25% by weight of particles of metal oxide having a median particle volume diameter in dispersion in the range from 18 to 32 nm, (ii) 5 to 60% by weight of silicone oil, and (iii) greater than 20% by weight of water. The metal oxide particles are preferably incorporated into the emulsion in the form of an aqueous dispersion. The emulsion exhibits good skin feel, effective UV protection, stability and improved transparency.
    Type: Application
    Filed: September 24, 2004
    Publication date: September 18, 2008
    Applicant: IMPERIAL CHEMICAL INDUSTRIES PLC
    Inventors: Lorna M Kessell, Julian P Hewitt
  • Metal Oxide Dispersions
    Publication number: 20080008757
    Abstract: A dispersion contains particles of metal oxide dispersed in a siloxane fluid and a dispersing agent which is a polysiloxane wherein (i) the polysiloxane contains in the range from 0.1 to 3 carboxyl groups, and (ii) the ratio of non-carboxyl group containing monomer units to carboxyl group containing monomer units in the polysiloxane is in the range from 40 to 150:1. The dispersion is particularly suitable for use as an ingredient in sunscreening cosmetics.
    Type: Application
    Filed: December 10, 2004
    Publication date: January 10, 2008
    Applicants: Imperial Chemical Industries PLC, ICI Americas Inc.
    Inventors: Lorna M. Kessell, Philip L. Lyth, John L. Gormley