Patents by Inventor Rachel Weston

Rachel Weston 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: 7932191
    Abstract: A composition comprising particles which comprise a core material within a polymeric shell, wherein the core material comprises a hydrophobic substance, in which the amount of the polymeric shell forms at least 8% of the total weight of the particles, wherein the polymeric shell comprises a copolymer formed from a monomer blend which comprises, A) 5 to 90% by weight of an ethylenically unsaturated water soluble monomer, B) 5 to 90% by weight of a multifunctional monomer, and C) 0 to 55% by weight other monomer, and wherein the amount of the polymeric shell and the proportions of. A, B and C are such that the particles exhibit a half height of at least 350° C. The invention includes a process for the manufacture of particles and the use of particles in articles, such as fabrics, and coating compositions, especially for textiles.
    Type: Grant
    Filed: April 18, 2005
    Date of Patent: April 26, 2011
    Assignee: Ciba Specialty Chemicals Water Treatments Ltd.
    Inventors: Howard Roger Dungworth, Rachel Weston, Rebecca Kelly
  • Publication number: 20070224899
    Abstract: A composition comprising particles which comprise a core material within a polymeric shell, wherein the core material comprises a hydrophobic substance, in which the amount of the polymeric shell forms at least 8% of the total weight of the particles, wherein the polymeric shell comprises a copolymer formed from a monomer blend which comprises, A) 5 to 90% by weight of an ethylenically unsaturated water soluble monomer, B) 5 to 90% by weight of a multifunctional monomer, and C) 0 to 55% by weight other monomer, and wherein the amount of the polymeric shell and the proportions of. A, B and C are such that the particles exhibit a half height of at least 350° C. The invention includes a process for the manufacture of particles and the use of particles in articles, such as fabrics, and coating compositions, especially for textiles.
    Type: Application
    Filed: April 18, 2005
    Publication date: September 27, 2007
    Inventors: Howard Dungworth, Rachel Weston, Rebecca Kelly