Patents Represented by Attorney Michael Petrin
  • Patent number: 7285522
    Abstract: The invention provides methods, compositions and kits for increasing the brightness retention of a fabric laundered using a hypohalite-generating bleach by employing an amount of bromide-releasing compound sufficient to provide between 0.1 to about 1.5 moles of bromine ion to mole of available chlorine in a wash liquor to mitigate the negative effects of said hypohalite bleach on the optical brightener present in either the wash liquor or on said fabric. The invention also applies to fabrics washed using commercial laundry detergents which typically deliver an optical brightener into said wash liquor, said optical brightener generally exhibiting instability in the presence of said hypohalite bleaches.
    Type: Grant
    Filed: August 25, 2004
    Date of Patent: October 23, 2007
    Assignee: The Clorox Company
    Inventor: Gregory van Buskirk