Patents by Inventor Martin Butters

Martin Butters 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).

  • SWELLABLE COMPOSITIONS
    Publication number: 20110042613
    Abstract: Water-swellable compositions, dispersions and hydrophilic cross-linked polymer microparticles for their preparation as well as their manufactures and uses are described. The polymer microparticles are formed from a monomer blend comprising sulphonic monomer, nonionic monomer and optionally other monomers and have a volume mean average size of below 20 microns. The compositions are useful in applications, such as seals and other water blocking applications.
    Type: Application
    Filed: July 30, 2008
    Publication date: February 24, 2011
    Inventors: Beatrix Loehner, Martin Butters, David Normington, Cameron Fleetwood
  • Stabilised calcium hydroxide slurries
    Publication number: 20030121457
    Abstract: Compositions comprising an aqueous calcium Hydroxide slurry with solids loading of 25-65 wt. %, an acidic polymer or water-soluble salt thereof and a co-additive are prepared. Also claimed are methods for the preparation thereof. The composition has low viscosity and remains flowable after several days.
    Type: Application
    Filed: November 19, 2002
    Publication date: July 3, 2003
    Inventor: Martin Butters