Patents Examined by Paul L. Lieberman
  • Rinse aid compositions containing alkyl polycycloside and a ketone antifoaming agent
    Patent number: 5366654
    Abstract: Rinse aid compositions based on alkyl polyglycoside surfactants attack plastics, in particular polycarbonate, to a much lesser degree than rinse aid compositions based on other types of nonionic surfactants. It is preferred that the compositions also comprise an anti-foam agent, preferably a ketone having more than 25 carbon atoms.
    Type: Grant
    Filed: December 15, 1993
    Date of Patent: November 22, 1994
    Assignee: Unilever Patent Holdings, B.V.
    Inventors: Guido C. Van Den Brom, Leendert Los