Back to results
US 11,078,451 B2Granted
Water-soluble unit dose articles made from a combination of different films and containing household care compositions
AssigneeThe Procter & Gamble Company
InventorsFlorence Catherine Courchay, Regine Labeque, Steven George Friedrich, David M Lee, Shinsuke Nii, Lee Kon Yeung, Thomas J Yogan, Marc Rene Bert Renmans
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to water-soluble unit dose articles made from a combination of chemically different water-soluble films and containing household care compositions that are at least partially enclosed by the water-soluble films in at least one compartment.
Claims25
A water-soluble unit dose article comprising at least one sealed compartment comprising at least one household care composition, the water-soluble unit dose article comprising
- a first water soluble film comprising a first water soluble resin;
- and a second water soluble film comprising a second water soluble resin;
- wherein the first film is sealed to the second film to form the at least one sealed compartment;
- wherein the first water soluble resin comprises at least one polyvinyl alcohol homopolymer or at least one polyvinylalcohol copolymer or a blend thereof, the at least one polyvinyl alcohol homopolymer or at least one polyvinylalcohol copolymer or blend thereof having a 4% solution viscosity in demineralized water at 25° C. in a range of about 8 cP to about 40 cP;
- wherein the second water soluble resin comprises at least one polyvinyl alcohol homopolymer or at least one polyvinylalcohol copolymer or a blend thereof, the at least one polyvinyl alcohol homopolymer or at least one polyvinylalcohol copolymer or blend thereof having a 4% solution viscosity in demineralized water at 25° C. in a range of about 4 cP to about 35 cP;
- and
- wherein the 4% solution viscosity in demineralized water at 25° C. of the at least one polyvinyl alcohol homopolymer or the at least one polyvinylalcohol copolymer or the blend thereof of the first water soluble resin is greater than the 4% solution viscosity in demineralized water at 25° C. of the at least one polyvinyl alcohol homopolymer or the at least one polyvinylalcohol copolymer or the blend thereof of the second water soluble resin and the difference between the 4% solution viscosity in demineralized water at 25° C. of the at least one polyvinyl alcohol homopolymer or the at least one polyvinylalcohol copolymer or the blend thereof of the first water soluble resin and the 4% solution viscosity in demineralized water at 25° C. of the at least one polyvinyl alcohol homopolymer or the at least one polyvinylalcohol copolymer or the blend thereof of the second water soluble resin is about 2 cP about 20 cP.
4 more elements
Dependencies are inferred from the claim text.