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US 2019/0376010 A1Published application
Water-soluble unit dose articles made from extruded films and containing household care compositions and methods for making the same
AssigneeThe Procter & Gamble Company
InventorsAmanee SALAAM, Norman Scott BROYLES, Emily Charlotte BOSWELL
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Abstract
The present disclosure relates to water-soluble unit dose articles made from a combination of water-soluble films and containing household care compositions that are at least partially enclosed by the water-soluble films in at least one compartment.
Claims20
A water-soluble unit dose article comprising:
- one or more layers of a first water-soluble film;
- one or more layers of a second water-soluble film;
- wherein the first water-soluble film is sealed to the second water-soluble film to form at least one sealed compartment;
- at least one household care composition at least partially enclosed within the sealed compartment;
- wherein each of the first water-soluble film and the second water-soluble film independently comprises:
- a polyvinyl alcohol (PVOH) polymeric resin and/or blend thereof, wherein from about 95% to about 100% of the polyvinyl alcohol (PVOH) polymeric resin and/or blend thereof is characterized by having a weight average molecular weight of from about 20,000 Da to about 94,500 Da, and wherein no more than about 5% of the polyvinyl alcohol (PVOH) polymeric resin and/or blend thereof is characterized by having a weight average molecular weight of greater than about 95,000 Da;
- one or more plasticizers;
- and
- wherein each of the first water-soluble film and the second water-soluble film independently exhibits a water vapor transmission rate of from about 50 g/(m2·day) to about 90 g/(m2·day) as measured according to the Water Vapor Transmission Test Method.
6 more elements
A water-soluble unit dose article comprising:
- a first water-soluble multilayer film composite comprising two or more layers of a water-soluble film;
- a second water-soluble multilayer film composite comprising two or more layers of the water-soluble film;
- wherein the first water-soluble multilayer film composite is sealed to the second water-soluble multilayer film composite to form at least one sealed compartment;
- at least one household care composition at least partially enclosed within the sealed compartment;
- wherein the water-soluble film of each of the layers independently comprises:
- a polyvinyl alcohol (PVOH) polymeric resin and/or blend thereof, wherein from about 95% to about 100% of the polyvinyl alcohol (PVOH) polymeric resin and/or blend thereof is characterized by having a weight average molecular weight of from about 20,000 Da to about 94,500 Da, and wherein no more than about 5% of the polyvinyl alcohol (PVOH) polymeric resin and/or blend thereof is characterized by having a weight average molecular weight of greater than about 95,000 Da;
- one or more plasticizers;
- and
- wherein each of the first water-soluble multilayer film composite and the second water-soluble multilayer film composite independently comprises at least an inward facing layer and an outward facing layer, wherein the inward facing layer of the first water-soluble multilayer film composite is chemically different than the outward facing layer of the first water-soluble multilayer film composite.
6 more elements
A method of making a water-soluble unit dose article, the method comprising the steps of:
- extruding one or more layers of a first water-soluble film;
- extruding one or more layers of a second water-soluble film;
- shaping the first water-soluble film to form an open compartment;
- providing a household care composition;
- loading the open compartment with the household care composition;
- and
- sealing the open compartment with the second water-soluble film to form a water-soluble unit dose article having a sealed compartment having the household care composition enclosed therein;
- wherein each of the first water-soluble film and the second water-soluble film independently comprises:
- a polyvinyl alcohol (PVOH) polymeric resin and/or blend thereof, wherein from about 95% to about 100% of the polyvinyl alcohol (PVOH) polymeric resin and/or blend thereof is characterized by having a weight average molecular weight of from about 20,000 Da to about 94,500 Da, and wherein no more than about 5% of the polyvinyl alcohol (PVOH) polymeric resin and/or blend thereof is characterized by having a weight average molecular weight of greater than about 95,000 Da;
- one or more plasticizers;
- and
- wherein each of the first water-soluble film and the second water-soluble film independently exhibits a water vapor transmission rate of from about 50 g/(m2·day) to about 90 g/(m2·day) as measured according to the Water Vapor Transmission Test Method.
9 more elements
Dependencies are inferred from the claim text.