Cast detergent-containing article and method of using
First Claim
1. A detergent-containing article of commerce comprising:
- (a) a three-dimensional, solid cast, hydrated, substantially uniform alkaline detergent comprising;
(1) at least 30% by weight of an alkaline hydratable chemical consisting essentially of alkali metal hydroxide;
(2) a hardness-sequestering agent;
(3) more than 15 parts by weight, per 100 parts by weight of said alkaline hydratable chemical, of water of hydration, at least a portion of said water of hydration being associated with said alkali metal hydroxide; and
(b) a receptacle-shaped disposable container surrounding and in contact with said solid, cast, hydrated alkaline detergent composition on all but one surface thereof.
1 Assignment
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Accused Products
Abstract
Solid cast detergent-containing articles are produced for use in automatic washing machines. A liquid detergent composition is cast into a mold where it is allowed to solidify. The solid cast detergent, surrounded on all but its upper surface by the mold, is used in automatic washing machines having a dispensing device designed to dispense a liquid aqueous detergent formed from the solid cast detergent using an impinging liquid spray. The liquid aqueous detergent flows out of the dispensing device generally simultaneously with its formation in the dispenser. The cast detergent composition includes an alkaline hydratable chemical and optionally further includes one or more preformed cores or plugs comprising an available chlorine source, a defoamer, or the like.
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Citations
14 Claims
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1. A detergent-containing article of commerce comprising:
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(a) a three-dimensional, solid cast, hydrated, substantially uniform alkaline detergent comprising; (1) at least 30% by weight of an alkaline hydratable chemical consisting essentially of alkali metal hydroxide; (2) a hardness-sequestering agent; (3) more than 15 parts by weight, per 100 parts by weight of said alkaline hydratable chemical, of water of hydration, at least a portion of said water of hydration being associated with said alkali metal hydroxide; and (b) a receptacle-shaped disposable container surrounding and in contact with said solid, cast, hydrated alkaline detergent composition on all but one surface thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification