Patents by Inventor Olivier Refouvelet

Olivier Refouvelet 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).

  • LIGHTWEIGHT CEMENT BOARD
    Publication number: 20120315464
    Abstract: A cement board has a density from 200 to 1000 kg/m3, the cement board produced from a foamed cement slurry including cement; water; from 0.01 to 5% of a water-reducing agent, a plasticizer or a superplasticizer, % by mass relative to the mass of cement; from 0.45 to 5%, of a foaming agent, % by mass relative to the mass of water; a water-soluble calcium salt; mineral particles from 0.1 to 300 ?m in size; a ratio of foaming agent to calcium salt being from 0.3 to 0.8.
    Type: Application
    Filed: February 16, 2011
    Publication date: December 13, 2012
    Applicant: LAFARGE
    Inventors: Olivier Refouvelet, Nicolas Pouteau