Abstract:
A method and device for making foams and slurries using an assembly of pins having rigid and flexible segments, a rotor shaft, and a container than can be easily assembled and disassembled. According to one embodiment of the present invention, a method for making a foam includes at least the following steps: (a) feeding one or more reactants (e.g., an aqueous solution) and one or more optional additives into a container having an open top, a closed bottom, and a wall, wherein a rotor shaft is inserted into the top of the container; (b) rotating the rotor shaft to mix the solution; and (c) forming a foam (e.g., an aqueous foam).
Abstract:
Foamed fiber compositions and processes of making said compositions. Compositions include a hydraulic mixture including (i) a polymer and (ii) one or more of gypsum, fly ash, and cement; and a foam including a foaming agent, a foam stabilizer, and 0.5-35% fibers by weight. The process for forming the foamed fiber composition includes providing a stable foam including a foaming agent and a foam stabilizer; mixing fibers into the stable foam until the fibers are uniformly distributed in the foam to form a fiber-containing foam, wherein the fiber-containing aqueous foam contains 0.5-35% fibers by weight; and mixing the fiber-containing foam into a hydraulic slurry including (i) a polymer and (ii) one or more of gypsum, fly ash, and cement. The composition is suitable for use in roof tiles, underlayments, backerboards, cement composites, foam fills, bricks, cement sidings, etc.