Powdered pouch and method of making same
First Claim
1. A water-soluble packet, comprising:
- a water-soluble film in the form of a packet and coated by a powder, the powder comprising a mixture ofa powdered lubricant andan active agent, wherein the active agent is microencapsulated and said microcapsule is selected from one or more of;
melamine formaldehyde, polyurethane, urea formaldehyde, chitosan, poly methyl methacrylate, polystyrene, polysulfone, poly tetrahydrofuran, gelatin, gum arabic, starch, polyvinylpyrrolidone, carboxymethylcellulose, hydroxyethylcellulose, methylcellulose, arabinogalactan, polyvinyl alcohol, polyacrylic acid, ethylcellulose, polyethylene, polymethacrylate, polyamide, poly (ethylenevinyl acetate), cellulose nitrate, silicones, poly(lactideco-glycolide), paraffin, carnauba, spermaceti, beeswax, stearic acid, stearyl alcohol, glyceryl stearates, shellac, cellulose acetate phthalate, and zein.
1 Assignment
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Accused Products
Abstract
Disclosed herein are water-soluble films and resulting packets including a water-soluble film coated by a powder, wherein the powder includes a mixture of a powdered lubricant and an active agent. Optionally, the active agent may be encapsulated, e.g. microencapsulated, for release of the active agent through mechanisms including, but not limited to, mechanical rupture, melt, ablation, dissolution, diffusion, biodegradation, or pH-controlled release. Active ingredients described include enzymes, oils, flavors, colorants, odor absorbers, fragrances, pesticides, fertilizers, activators, acid catalysts, metal catalysts, ion scavengers, bleaches, bleach components, fabric softeners and combinations thereof. Examples of packet fills include laundry detergents, bleach and laundry additives, fabric care, dishwashing, hard surface cleaning, beauty care, skin care, other personal care, and foodstuffs.
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Citations
58 Claims
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1. A water-soluble packet, comprising:
a water-soluble film in the form of a packet and coated by a powder, the powder comprising a mixture of a powdered lubricant and an active agent, wherein the active agent is microencapsulated and said microcapsule is selected from one or more of;
melamine formaldehyde, polyurethane, urea formaldehyde, chitosan, poly methyl methacrylate, polystyrene, polysulfone, poly tetrahydrofuran, gelatin, gum arabic, starch, polyvinylpyrrolidone, carboxymethylcellulose, hydroxyethylcellulose, methylcellulose, arabinogalactan, polyvinyl alcohol, polyacrylic acid, ethylcellulose, polyethylene, polymethacrylate, polyamide, poly (ethylenevinyl acetate), cellulose nitrate, silicones, poly(lactideco-glycolide), paraffin, carnauba, spermaceti, beeswax, stearic acid, stearyl alcohol, glyceryl stearates, shellac, cellulose acetate phthalate, and zein.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22)
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20. A method of providing a water-soluble packet with additional functionality, comprising:
coating a water-soluble film in the form of a water-soluble packet with a powder comprising a mixture of a powdered lubricant and an active agent, wherein the active agent is microencapsulated and said microcapsule is selected from one or more of;
melamine formaldehyde, polyurethane, urea formaldehyde, chitosan, poly methyl methacrylate, polystyrene, polysulfone, poly tetrahydrofuran, gelatin, gum arabic, starch, polyvinylpyrrolidone, carboxymethylcellulose, hydroxyethylcellulose, methylcellulose, arabinogalactan, polyvinyl alcohol, polyacrylic acid, ethylcellulose, polyethylene, polymethacrylate, polyamide, poly (ethylenevinyl acetate), cellulose nitrate, silicones, poly(lactideco-glycolide), paraffin, carnauba, spermaceti, beeswax, stearic acid, stearyl alcohol, glyceryl stearates, shellac, cellulose acetate phthalate, and zein.
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23. A water-soluble packet, comprising:
a water-soluble film in the form of a packet and coated by a powder, the powder comprising a mixture of a powdered lubricant and an active agent, wherein the active agent is microencapsulated, the mean particle size of the microcapsule is greater than the mean particle size of the powdered lubricant, and said microcapsule is selected from one or more of;
melamine formaldehyde, polyurethane, urea formaldehyde, chitosan, poly methyl methacrylate, polystyrene, polysulfone, poly tetrahydrofuran, gelatin, gum arabic, starch, polyvinylpyrrolidone, carboxymethylcellulose, hydroxyethylcellulose, methylcellulose, arabinogalactan, polyvinyl alcohol, polyacrylic acid, ethylcellulose, polyethylene, polymethacrylate, polyamide, poly (ethylenevinyl acetate), cellulose nitrate, silicones, poly(lactideco-glycolide), paraffin, carnauba, spermaceti, beeswax, stearic acid, stearyl alcohol, glyceryl stearates, shellac, cellulose acetate phthalate, and zein.- View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. A water-soluble packet, comprising:
a water-soluble film in the form of a packet and coated by a powder, the powder comprising a mixture of a powdered lubricant and an active agent, wherein the active agent is microencapsulated, microcapsule agglomerates are formed and the mean microcapsule agglomerate size is greater than the mean particle size of the powdered lubricant, and said microcapsule is selected from one or more of;
melamine formaldehyde, polyurethane, urea formaldehyde, chitosan, poly methyl methacrylate, polystyrene, polysulfone, poly tetrahydrofuran, gelatin, gum arabic, starch, polyvinylpyrrolidone, carboxymethylcellulose, hydroxyethylcellulose, methylcellulose, arabinogalactan, polyvinyl alcohol, polyacrylic acid, ethylcellulose, polyethylene, polymethacrylate, polyamide, poly (ethylenevinyl acetate), cellulose nitrate, silicones, poly(lactideco-glycolide), paraffin, carnauba, spermaceti, beeswax, stearic acid, stearyl alcohol, glyceryl stearates, shellac, cellulose acetate phthalate, and zein.- View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58)
Specification