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US 3,945,936 AGranted
Bleaching article
AssigneeThe Procter & Gamble Company
InventorsMalcolm Bramel Lucas, James Francis McKenna, Francis Louvaine Diehl
Life of this patent
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Abstract
A porous article releasably containing a dry, activated bleaching composition suitable for use in an automatic dryer.
Claims9
An article of manufacture especially adapted for bleaching fabrics in an automatic clothes dryer, consisting essentially of:
- a. a water-insoluble, closed, flexible pouch, at least one wall of said pouch consisting of an open pore polyurethane foam having a density of from about 0.75 lb./cu. ft. to about 1.50 lb./cu. ft.;
- and
- b. an effective amount of a solid, particulate, water-soluble fabric bleaching composition consisting essentially of a peroxygen bleach, said bleaching composition being releasably enclosed within the pouch.
Dependencies are inferred from the claim text.