Patents by Inventor Beatrix Loehner

Beatrix Loehner 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).

  • Reverse phase hydrophilic polymers and their use in water-expandable elastomeric compositions
    Patent number: 7901771
    Abstract: Water-swellable compositions, dispersions and polymer microparticles for their preparation as well as their manufactures and uses are described.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: March 8, 2011
    Assignee: BASF SE
    Inventors: Martin Peter Butters, Malcolm Skinner, Beatrix Loehner, Ian Biggin
  • 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
  • Reverse Phase Hydrophilic Polymers and Their Use in Water-Expandable Elastomeric Compositions
    Publication number: 20090029168
    Abstract: Water-swellable compositions, dispersions and polymer microparticles for their preparation as well as their manufactures and uses are described.
    Type: Application
    Filed: April 5, 2006
    Publication date: January 29, 2009
    Inventors: Martin Peter Butters, Malcolm Skinner, Beatrix Loehner, Ian Biggin