Patents by Inventor Elizabeth J. McCallion

Elizabeth J. McCallion has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Bleach composition of detergent base powder and agglomerated manganese-alluminosilicate catalyst having phosphate salt distributed therebetween
    Patent number: 4655782
    Abstract: A bleaching composition is disclosed wherein the bleach catalyst is an aggregate comprising manganese (II) cations adsorbed onto an aluminosilicate support, a binder and a phosphate salt; the aggregates have a diameter ranging from at least 250 to about 2000 microns which aggregates upon dispersion in water for two minutes at pH 10 and 40.degree. C. leave undissolved less than 5% particles of 125 microns or higher. The base detergent powder comprises a phosphate salt and a peroxy compound. It was found that bleach performance improves by having phosphate salt both in the aggregate and in the detergent powder base.
    Type: Grant
    Filed: December 6, 1985
    Date of Patent: April 7, 1987
    Assignee: Lever Brothers Company
    Inventors: Elizabeth J. McCallion, William Karpusiewicz, Charles F. Irwin