Patents Assigned to Kerneos
  • Patent number: 7938905
    Abstract: A method for producing concrete parts and a structure includes (i) supplying a first concrete composition based on a quick binder containing Portland cement, curing accelerator system based on Al2O3, CaO lime and SO3 sulphates, a retardant system and a superplasticizer, (ii) adding a releaser system for forming a second concrete composition and pouring the second concrete composition into a concrete form. The use of a releaser system and the preparation of the first concrete composition are also disclosed.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: May 10, 2011
    Assignee: Kerneos
    Inventors: Michel Testut, Serge Sabio, Hervé Fryda
  • Patent number: 7591893
    Abstract: A dense mortar includes: (i) an ettringite binder, including calcium sulphate and a calcium aluminate mineral compound, (ii) at least one poly(alkylene oxide) comb polymer and, (iii) at least one organic resin, the organic resin accounting for less than 2% by weight of the mortar.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: September 22, 2009
    Assignee: Kerneos
    Inventors: Loris Amathieu, Bruno Touzo, Lionel Raynaud, Dina Gauthier
  • Patent number: 7326290
    Abstract: The invention relates to a setting accelerator for a composition comprising Portland cement, in the form of a slurry comprising at least one calcium aluminate, 0.5 4%, preferably 0.6 2.3% of an aluminous cement setting inhibitor by weight in relation to the overall weight of the calcium alumnate, and an anti-sedimentation agent.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: February 5, 2008
    Assignee: Kerneos
    Inventors: Dominique Guinot, Eric Charpentier, Eric Frier