Back to results
US 6,444,631 B1Granted
Dishwashing detergent product having a ultraviolet light resistant bottle
AssigneeThe Procter & Gamble Company
InventorsKofi Ofosu-Asante, Robert Henry Kordenbrock, Robert Owens
Life of this patent
Estimating the term…
Abstract
A dishwashing product containing a diamine-containing detergent composition specifically for hand dishwashing is disclosed. The container or bottle in which the detergent composition is contained is effectively resistant to UV light, thereby preventing any discoloration of the composition prior to full use of the product by the consumer. Alternatively, the composition itself is UV light resistant.
Claims12
A dishwashing detergent product comprising:
- an enclosed container in which a detergent composition is contained, said container having a reclosable opening through which said detergent composition can be dispensed, characterized in that said container has walls containing from about 0.0001% to about 1% by weight of the container of an ultraviolet light blocker selected from the group consisting of benzotriazoles, orthohydroxybenzophenones, titanium dioxide, and mixtures thereof to substantially retard ultraviolet light from said detergent composition in said container;
- said detergent composition comprising:
- a) from about 0.25% to about 15% by weight of low molecular weight organic diamine having a pK1 and a pK2, wherein the pK1 and the pK2 of said diamine are both in the range of from 8.0 to 11.5;
- and
- b) an effective amount of detersive surfactant;
- wherein the pH of the detergent composition is from 8 to 12 and the weight ratio of said surfactant to said diamine is from about 40:1 to about 2:1.
3 more elements
Dependencies are inferred from the claim text.