Patents Represented by Attorney A. Kate Kuffman

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  • Encapsulates containing surfactant for improved release and dissolution rates
    Patent number: 5480577
    Abstract: Wax-encapsulated particles having a core particle or an aggregate of core particles selected from the group of an organic peroxy acid, a diacyl peroxide, an inorganic peroxygen compound, a bleach catalyst, a peroxygen bleach precursor and mixtures thereof together with 0.01% to about 5% by weight of a surfactant. The resulting particles exhibit release rates from their capsules and dissolution rates comparable to uncoated core materials.
    Type: Grant
    Filed: June 7, 1994
    Date of Patent: January 2, 1996
    Assignee: Lever Brothers Company, division of Conopco, Inc.
    Inventors: John R. Nicholson, David J. Lang