Patents Assigned to Industria Chimica Carlo Laviosa S.p.A
  • Additive for green moulding sands
    Patent number: 4867228
    Abstract: An additive for green moulding sands for use in foundry industry comprising a "stabilized" and polyhydroxylated carbohydrate, in particular as aqueous solution, and preferably consisting of a monosaccharidic and/or oligosaccharidic derivatives where any of the aldehydic and ketonic functions have been selectively reduced or oxidated. The additive improves the flowability and plasticity of the moulding said with a reduced moisture demand and a better surface finishing of the castings.
    Type: Grant
    Filed: March 4, 1988
    Date of Patent: September 19, 1989
    Assignee: Industria Chimica Carlo Laviosa S.p.A
    Inventors: Giovanni Novelli, Athos Rinaldi, Andrea Rossi