Patents Assigned to BPB Ltd.
  • Patent number: 8216360
    Abstract: A method of producing gypsum building board, comprises allowing a layer of an aqueous gypsum slurry to set so as to form a board, in which the improvement comprises mixing the gypsum slurry with an aqueous foam produced by foaming water containing at least one non-ionic alkylpolysaccharide foaming agent of the general formula (I) R—O-(G)x??(I) where: R represents a linear or branched alkyl group having from 6 to 20 carbon atoms; G represents a reducing saccharide moiety connected to R via an ethereal O-glycosidical bond; and x is 1 to 10.
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: July 10, 2012
    Assignee: BPB Ltd.
    Inventors: Nathalie Agnes Gaillard, Emmanuel Henri Constant Geeraert
  • Publication number: 20100043674
    Abstract: A method of producing gypsum building board, comprises allowing a layer of an aqueous gypsum slurry to set so as to form a board, in which the improvement comprises mixing the gypsum slurry with an aqueous foam produced by foaming water containing at least one non-ionic alkylpolysaccharide foaming agent of the general formula (I) R—O-(G)x ??(I) where: R represents a linear or branched alkyl group having from 6 to 20 carbon atoms; G represents a reducing saccharide moiety connected to R via an ethereal O-glycosidical bond; and x is 1 to 10.
    Type: Application
    Filed: August 28, 2007
    Publication date: February 25, 2010
    Applicant: BPB Ltd.
    Inventors: Nathalie Agnes Gaillard, Emmanuel Henri Constant Geeraeart
  • Publication number: 20090036572
    Abstract: A method of imparting water repellency to a gypsum-based product formed from a plaster-based composition, includes adding to the composition at least one compound including a polysiloxane and at least one compound comprising a pregelled starch. A hydrophobicized, plaster-based composition including a polysiloxane and at least one compound comprising a pregelled starch, and its uses are also disclosed.
    Type: Application
    Filed: February 27, 2007
    Publication date: February 5, 2009
    Applicant: BPB LTD.
    Inventor: Emmanuel Geeraert