US5656280A
Expired / Lapsed
US
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Water-in-oil-in-water compositions
Assignee: Helene Curtis Inc
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Filing: 1994-12-06
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Granted: 1997-08-12
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Expires: 2014-12-06
Abstract
Abstract Water-in-oil-in-water multiple emulsion compositions are disclosed. The multiple emulsion compositions comprise an external aqueous phase optionally incorporating a surfactant system capable of forming liquid crystals as an emulsifier. The internal phase comprises a primary water-in-oil emulsion, wherein the primary emulsion comprises a first topically-active compound, a surfactant phase, an oil phase, and water.
Inventors
- 👤 Craig A. Herb
- 👤 Liang Bin Chen
- 👤 Judy Chung
- 👤 Michelle A. Long
- 👤 Wei Mei Sun
- 👤 Gerald P. Newell
- 👤 Trefor A. Evans
- 👤 Kimberly Kamis
- 👤 Richard M. Brucks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:12
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/02; A61K8/0295; A61K8/04; A61K8/06; A61K8/066; A61K8/18; A61K8/19; A61K8/22; A61K8/30; A61K8/33; A61K8/34; A61K8/342; A61K8/36; A61K8/365; A61K8/39; A61K8/40; A61K8/41; A61K8/416; A61K8/44; A61K8/447; A61K8/58; A61K8/585; A61K8/67; A61K8/676; A61K8/72; A61K8/73; A61K8/735; A61K8/81; A61K8/8105; A61K8/8117; A61K8/817; A61K8/8182; A61K8/84; A61K8/86; A61K8/89; A61K8/891; A61K8/894; A61Q; A61Q17/00; A61Q17/04; A61Q19/00; A61Q5/00; A61Q5/06; A61Q5/065; A61Q5/10; A61Q5/12; B; B01; B01F; B01F23/00; B01F23/40; B01F23/41; B01F23/4105; B01F23/414; B01F23/4144
Claims Analysis
Total Claims: 61
Claim 1
Independent Claim
245 words
A water-in-oil-in-water multiple emulsion composition comprising: (a) about 40% to about 99% by weight of the composition of an external aqueous phase comprising: (i) water and (ii) about 0.1% to about 15% by weight of the external aqueous phase of a surfactant system capable of forming liquid crystals, wherein the surfactant system in the external phase is selected from the group consisting of a quaternary ammonium compound having two long alkyl (C 8 -C 22 ) chains, a di-long chain alkyl (C 8 -C 22 ) amine, a long chain fatty (C 8 -C 22 ) alcohol, an ethoxylated fatty (C 8 -C 22 ) alcohol, a double-tailed anionic surfactant, a double-tailed phospholipid, and mixtures thereof; and (b) about 1% to about 60% by weight of the composition of a primary emulsion, said primary emulsion comprising: (i) about 1% to about 95% by weight of the primary emulsion of an aqueous phase comprising a topically-effective amount of a first topically-active compound and water, (ii) about 5% to about 95% by weight of the primary emulsion of an oil phase comprising a volatile silicone compound, a nonvolatile silicone compound, a volatile hydrocarbon compound, a nonvolatile hydrocarbon compound, or a mixture thereof, and (iii) about 0.1% to about 20% by weight of the primary emulsion of a surfactant phase comprising a silicon-free surfactant or surfactant blend having an HLB value of about 10 or less, an oil-soluble silicon-based surfactant, an oil-soluble polymeric surfactant, or a mixture thereof.
Claim 2
Dependent Claim
245 words
A water-in-oil-in-water multiple emulsion composition comprising: (a) about 40% to about 99% by weight of the composition of an external aqueous phase comprising: (i) water and (ii) about 0.1% to about 15% by weight of the external aqueous phase of a surfactant system capable of forming liquid crystals, wherein the surfactant system in the external phase is selected from the group consisting of a quaternary ammonium compound having two long alkyl (C 8 -C 22 ) chains, a di-long chain alkyl (C 8 -C 22 ) amine, a long chain fatty (C 8 -C 22 ) alcohol, an ethoxylated fatty (C 8 -C 22 ) alcohol, a double-tailed anionic surfactant, a double-tailed phospholipid, and mixtures thereof; and (b) about 1% to about 60% by weight of the composition of a primary emulsion, said primary emulsion comprising: (i) about 1% to about 95% by weight of the primary emulsion of an aqueous phase comprising a topically-effective amount of a first topically-active compound and water, (ii) about 5% to about 95% by weight of the primary emulsion of an oil phase comprising a volatile silicone compound, a nonvolatile silicone compound, a volatile hydrocarbon compound, a nonvolatile hydrocarbon compound, or a mixture thereof, and (iii) about 0.1% to about 20% by weight of the primary emulsion of a surfactant phase comprising a silicon-free surfactant or surfactant blend having an HLB value of about 10 or less, an oil-soluble silicon-based surfactant, an oil-soluble polymeric surfactant, or a mixture thereof.
Claim 3
Dependent Claim
28 words
The composition of claim 1 wherein the external aqueous phase further comprises 0% to about 30% by weight of the external aqueous phase of a second topically-active compound.
Claim 4
Dependent Claim
18 words
The composition of claim 2 wherein the first topically-active compound and the second topically-active compound are different compounds.
Claim 5
Dependent Claim
18 words
The composition of claim 2 wherein the first topically-active compound and the second topically-active compound are identical compounds.
Claim 6
Dependent Claim
18 words
The composition of claim 2 wherein the first topically-active compound and the second topically-active compound are incompatible compounds.
Claim 7
Dependent Claim
27 words
The composition of claim 2 wherein the second topically-active compound is present in an amount of about 0.1% to about 30% by weight of the external phase.
Claim 8
Dependent Claim
110 words
The composition of claim 2 wherein the second topically-active compound is selected from the group consisting of a hair conditioner, a skin conditioner, a hair cleanser, a skin cleanser, a hair fixative, a hair dye, a hair growth promoter, a deodorant, a skin care compound, a permanent wave compound, a hair relaxer, a hair straightener, an antibacterial compound, a topically-active drug, an antifungal compound, an anti-inflammatory compound, a topical anesthetic, a sunscreen, a dermatitis medication, an acne preparation, an oxidizing agent, an antioxidant, an optical brightener, a hair bleaching agent, a hair reducing agent, an ultraviolet light absorber, a sunburn reliever, a self-tanning compound, an anti-itch compound, and mixtures thereof.
Claim 9
Dependent Claim
51 words
The composition of claim 2 wherein the first topically-active compound comprises a hair fixative resin, a hair reducing agent, a protein, an oxidizing agent, a water-soluble hair dye, a sunscreen a humectant, or an optical brightener, and the second topically-active compound comprises a cationic hair conditioner or an anionic hair cleanser.
Claim 10
Dependent Claim
32 words
The composition of claim 8 wherein the hair fixative resin is selected from the group consisting of a polyvinylpyrrolidone, Polyquaternium-11, PVP/dimethylaminoethylmethacrylate copolymer, a sodium polystyrene sulfonate, a polyethylene glycol, and mixtures thereof.
Claim 11
Dependent Claim
39 words
The composition of claim 2 wherein the first topically-active compound comprises a cationic hair conditioner, a deodorant, a skin care product, a bacteriocide, a topical medicament or a mixture thereof, and the second topically-active compound comprises an anionic cleanser.
Claim 12
Dependent Claim
35 words
The composition of claim 2 wherein the first topically-active compound comprises a neutralizer for reducing agents and the second topically-active compound comprises a reducing agent for permanent hair waving, cysteine, cysteamine, or a hair conditioner.
Claim 13
Dependent Claim
31 words
The composition of claim 2 wherein the first topically-active compound comprises a reducing agent for permanent hair waving, and the second topically-active compound comprises a hair cleanser or a hair conditioner.
Claim 14
Dependent Claim
23 words
The composition of claim 2 wherein the first topically-active compound comprises a hair conditioner, and the second topically-active compound comprises an oxidizing agent.
Claim 15
Dependent Claim
23 words
The composition of claim 2 wherein the first topically-active compound comprises a topical medicament and the second topically-active compound comprises a topical anesthetic.
Claim 16
Dependent Claim
23 words
The composition of claim 2 wherein the first topically-active compound comprises a skin conditioner and the second topically-active compound comprises a make-up remover.
Claim 17
Dependent Claim
56 words
The composition of claim 2 wherein the first topically-active compound comprises a sunburn reliever, a sunscreen, a skin conditioner, a bacteriocide, a deodorant, an antifungal compound, an anesthetic, an anti-inflammatory, an anti-irritant, an anti-itch compound, a medicament, a self-tanning compound, a dermatitis medication, or a mixture thereof, and the second topically-active compound comprises a skin cleanser.
Claim 18
Dependent Claim
23 words
The composition of claim 2 wherein the first topically-active compound comprises a self-tanning compound, and the second topically-active compound comprises a skin conditioner.
Claim 19
Dependent Claim
38 words
The composition of claim 2 wherein the first topically-active compound comprises a hair conditioner, a hair dye, a hair growth promoter, a hair bleaching agent, or a mixture thereof, and the second topically-active compound comprises a hair cleanser.
Claim 20
Dependent Claim
30 words
The composition of claim 2 wherein the first topically-active compound comprises a hair dye, and the second topically-active compound comprises a hair conditioner, a bleaching agent, or a mixture thereof.
Claim 21
Dependent Claim
25 words
The composition of claim 2 wherein the first topically-active compound comprises a water-soluble hair conditioner and the second topically-active compound comprises a substantive hair conditioner.
Claim 22
Dependent Claim
30 words
The composition of claim 2 wherein the first topically-active compound comprises a sunscreen, a protein, a humectant, or a mixture thereof, and the second topically-active compound comprises a hair conditioner.
Claim 23
Dependent Claim
17 words
The composition of claim 1 wherein the external aqueous phase is free of a polymeric gelling agent.
Claim 24
Dependent Claim
21 words
The composition of claim 1 wherein the composition is a liquid having a viscosity of about 1 to about 15,000 centipoise.
Claim 25
Dependent Claim
33 words
The composition of claim 1 wherein the composition is a cream having a viscosity of about 50,000 to about 1,200,000 centipoise and the external aqueous phase is free of a polymeric gelling agent.
Claim 26
Dependent Claim
26 words
The composition of claim 1 wherein the primary emulsion is present in the form of droplets having a diameter of about 5 to about 1000 microns.
Claim 27
Dependent Claim
27 words
The composition of claim 1 wherein the first topically-active compound is present in an amount of about 0.1% to about 30% by weight of the primary emulsion.
Claim 28
Dependent Claim
13 words
The composition of claim 1 wherein the first topically-active compound is water soluble.
Claim 29
Dependent Claim
110 words
The composition of claim 1 wherein the first topically-active compound is selected from the group consisting of a hair conditioner, a skin conditioner, a hair cleanser, a skin cleanser, a hair fixative, a hair dye, a hair growth promoter, a deodorant, a skin care compound, a permanent wave compound, a hair relaxer, a hair straightener, an antibacterial compound, a topically-active drug, an antifungal compound, an anti-inflammatory compound, a topical anesthetic, a sunscreen, a dermatitis medication, an acne preparation, an oxidizing agent, an antioxidant, an optical brightener, a hair bleaching agent, a hair reducing agent, an ultraviolet light absorber, a sunburn reliever, a self-tanning compound, an anti-itch compound, and mixtures thereof.
Claim 30
Dependent Claim
26 words
The composition of claim 1 wherein the oil phase is present in an amount of about 0.5% to about 80% by weight of the primary emulsion.
Claim 31
Dependent Claim
14 words
The composition of claim 1 wherein the oil phase comprises a volatile silicone compound.
Claim 32
Dependent Claim
20 words
The composition of claim 30 wherein the volatile silicone compound has a viscosity of about 0.5 to about 6 centistokes.
Claim 33
Dependent Claim
13 words
The composition of claim 31 wherein the volatile silicone compound is a cyclomethicone.
Claim 34
Dependent Claim
22 words
The composition of claim 1 wherein the oil phase comprises a volatile hydrocarbon compound having about 10 to about 30 carbon atoms.
Claim 35
Dependent Claim
34 words
The composition of claim 33 wherein the volatile hydrocarbon compound has about 12 to about 24 carbon atoms and has a boiling point at 760 mm of about 100° C. to about 250° C.
Claim 36
Dependent Claim
14 words
The composition of claim 1 wherein the oil phase comprises a nonvolatile silicone compound.
Claim 37
Dependent Claim
14 words
The composition of claim 1 wherein the oil phase comprises a nonvolatile hydrocarbon compound.
Claim 38
Dependent Claim
19 words
The composition of claim 1 wherein the oil phase comprises a volatile oil phase and a nonvolatile oil phase.
Claim 39
Dependent Claim
26 words
The composition of claim 1 wherein the surfactant phase is present in an amount of about 0.1% to about 10% by weight of the primary emulsion.
Claim 40
Dependent Claim
25 words
The composition of claim 1 wherein the surfactant phase comprises a silicon-free surfactant or surfactant blend having an HLB of about 1 to about 7.
Claim 41
Dependent Claim
23 words
The composition of claim 1 wherein the surfactant phase comprises one silicon-free surfactant having an HLB value of about 0.1 to about 10.
Claim 42
Dependent Claim
52 words
The composition of claim 1 wherein the surfactant phase comprises a silicon-free surfactant blend having an HLB value of about 1 to about 10, said surfactant blend comprising a first surfactant having an HLB value of about 0.1 to about 10 and a second surfactant having an HLB greater than about 10.
Claim 43
Dependent Claim
62 words
The composition of claim 1 wherein the surfactant phase comprises a silicon-free nonionic surfactant selected from the group consisting of a polyoxyethylene ether of a fatty (C 6 -C 22 ) alcohol, a polyoxyethylene/polyoxypropylene ether of a fatty (C 6 -C 22 ) alcohol, an ethyoxylated alkylphenol, a polyethylene glycol ether of methyl glucose, a polyethylene ether of sorbitol, and mixtures thereof.
Claim 44
Dependent Claim
14 words
The composition of claim 1 wherein the surfactant phase comprises an oil-soluble silicon-based surfactant.
Claim 45
Dependent Claim
126 words
The composition of claim 43 wherein the silicon-based surfactant comprises a dimethicone copolyol having 15 or less total monomer units of ethylene oxide, propylene oxide or a mixture thereof, an alkyl dimethicone copolyol having the structure: ##STR4## wherein p is a numeral from 7 through 17; q is a numeral from 1 through 100; m is a numeral from 1 through 40; n is a numeral from 0 through 200; and PE is (C 2 H 4 O) a (C 3 H 6 O) b -H having a molecular weight of about 250 to about 2000, wherein a and b are selected such that the weight ratio of C 2 H 4 O/C 3 H 6 O is from 100/0 to 20/80, or a mixture thereof.
Claim 46
Dependent Claim
40 words
The composition of claim 1 wherein the surfactant phase comprises an oil-soluble polymeric surfactant capable of forming water-in-oil emulsions and having repeating ethoxy units, propoxy units, butoxy units or combinations thereof, and includes less than 40 weight % ethoxy units.
Claim 47
Dependent Claim
28 words
The composition of claim 1 wherein the surfactant phase comprises an oil-soluble silicon-based surfactant, and the oil phase comprises a volatile silicone compound or a nonvolatile silicone compound.
Claim 48
Dependent Claim
32 words
The composition of claim 1 wherein the surfactant phase comprises a silicon-free nonionic surfactant or an oil-soluble polymeric surfactant and the oil phase comprises a volatile hydrocarbon compound or nonvolatile hydrocarbon compound.
Claim 49
Dependent Claim
43 words
The composition of claim 1 wherein the oil phase comprises a combination of a silicone compound and hydrocarbon compound, and the surfactant phase comprises a combination of a silicon-based surfactant and a silicon-free nonionic surfactant, an oil-soluble polymeric surfactant or a mixture thereof.
Claim 50
Dependent Claim
30 words
The composition of claim 1 wherein the surfactant system in the external phase is present in an amount of about 0.1% to about 15% by weight of the external phase.
Claim 51
Dependent Claim
274 words
A water-in-oil-in-water multiple emulsion composition comprising: (a) about 50% to about 95% by weight of the composition of an external aqueous phase comprising: (i) about 0.1% to about 30% by weight of the external aqueous phase of a second topically-active compound, (ii) about 0.5% to about 16% by weight of the external aqueous phase of a surfactant system capable of forming liquid crystals, wherein the surfactant system in the external phase is selected from the group consisting of a quaternary ammonium compound having two long alkyl (C 8 -C 22 ) chains, a di-long chain alkyl (C 8 -C 22 ) amine, a long chain fatty (C 8 -C 22 ) alcohol, an ethoxylated fatty (C 8 -C 22 ) alcohol, a double-tailed anionic surfactant, a double-tailed phospholipid, and mixtures thereof; and (iii) water; and (b) about 5% to about 50% by weight of the composition of a primary emulsion, said primary emulsion comprising: (i) about 10% to about 95% by weight of the primary emulsion of an aqueous phase comprising (A) water and (B) about 0.1% to about 30% by weight of the primary emulsion of a first topically-active compound; (ii) about 0.5% to about 80% by weight of the primary emulsion of an oil phase comprising a volatile silicone compound, a nonvolatile silicone compound, a volatile hydrocarbon compound, a nonvolatile hydrocarbon compound, or a mixture thereof, and (iii) about 0.1% to about 15% by weight of the primary emulsion of a surfactant phase comprising a silicon-free surfactant or surfactant blend having an HLB value of about 1 to about 7, an oil-soluble silicon-based surfactant, an oil-soluble polymeric surfactant, or a mixture thereof.
Claim 52
Dependent Claim
274 words
A water-in-oil-in-water multiple emulsion composition comprising: (a) about 50% to about 95% by weight of the composition of an external aqueous phase comprising: (i) about 0.1% to about 30% by weight of the external aqueous phase of a second topically-active compound, (ii) about 0.5% to about 16% by weight of the external aqueous phase of a surfactant system capable of forming liquid crystals, wherein the surfactant system in the external phase is selected from the group consisting of a quaternary ammonium compound having two long alkyl (C 8 -C 22 ) chains, a di-long chain alkyl (C 8 -C 22 ) amine, a long chain fatty (C 8 -C 22 ) alcohol, an ethoxylated fatty (C 8 -C 22 ) alcohol, a double-tailed anionic surfactant, a double-tailed phospholipid, and mixtures thereof; and (iii) water; and (b) about 5% to about 50% by weight of the composition of a primary emulsion, said primary emulsion comprising: (i) about 10% to about 95% by weight of the primary emulsion of an aqueous phase comprising (A) water and (B) about 0.1% to about 30% by weight of the primary emulsion of a first topically-active compound; (ii) about 0.5% to about 80% by weight of the primary emulsion of an oil phase comprising a volatile silicone compound, a nonvolatile silicone compound, a volatile hydrocarbon compound, a nonvolatile hydrocarbon compound, or a mixture thereof, and (iii) about 0.1% to about 15% by weight of the primary emulsion of a surfactant phase comprising a silicon-free surfactant or surfactant blend having an HLB value of about 1 to about 7, an oil-soluble silicon-based surfactant, an oil-soluble polymeric surfactant, or a mixture thereof.
Claim 53
Dependent Claim
247 words
A water-in-oil-in-water multiple emulsion composition comprising: (a) about 40% to about 99% by weight of the composition of an external aqueous phase comprising: (i) water and (ii) about 0.001% to about 14.85% by weight of the composition of a surfactant system capable of forming liquid crystals, wherein the surfactant system in the external phase is selected from the group consisting of a quaternary ammonium compound having two long alkyl (C 8 -C 12 ) chains, a di-long chain alkyl (C 8 -C 22 ) amine, a long chain fatty (C 8 -C 22 ) alcohol, an ethoxylated fatty (C 8 -C 22 ) alcohol, a double-tailed anionic surfactant, a double-tailed phospholipid, and mixtures thereof; and (b) about 1% to about 60% by weight of the composition of a primary emulsion, said primary emulsion comprising: (i) about 0.01% to about 57% by weight of the composition of an aqueous phase comprising water and about 0.001% to about 17.1% by weight of the composition of a first topically-active compound, (ii) about 0.005% to about 57% by weight of the composition of an oil phase comprising a volatile silicone compound, a nonvolatile silicone compound, a volatile hydrocarbon compound, a nonvolatile hydrocarbon compound, or a mixture thereof, and (iii) about 0.001% to about 12% by weight of the composition of a surfactant phase comprising a silicon-free surfactant or surfactant blend having an HLB value of about 10 or less, an oil-soluble silicon-based surfactant, an oil-soluble polymeric surfactant, or a mixture thereof.
Claim 54
Dependent Claim
247 words
A water-in-oil-in-water multiple emulsion composition comprising: (a) about 40% to about 99% by weight of the composition of an external aqueous phase comprising: (i) water and (ii) about 0.001% to about 14.85% by weight of the composition of a surfactant system capable of forming liquid crystals, wherein the surfactant system in the external phase is selected from the group consisting of a quaternary ammonium compound having two long alkyl (C 8 -C 12 ) chains, a di-long chain alkyl (C 8 -C 22 ) amine, a long chain fatty (C 8 -C 22 ) alcohol, an ethoxylated fatty (C 8 -C 22 ) alcohol, a double-tailed anionic surfactant, a double-tailed phospholipid, and mixtures thereof; and (b) about 1% to about 60% by weight of the composition of a primary emulsion, said primary emulsion comprising: (i) about 0.01% to about 57% by weight of the composition of an aqueous phase comprising water and about 0.001% to about 17.1% by weight of the composition of a first topically-active compound, (ii) about 0.005% to about 57% by weight of the composition of an oil phase comprising a volatile silicone compound, a nonvolatile silicone compound, a volatile hydrocarbon compound, a nonvolatile hydrocarbon compound, or a mixture thereof, and (iii) about 0.001% to about 12% by weight of the composition of a surfactant phase comprising a silicon-free surfactant or surfactant blend having an HLB value of about 10 or less, an oil-soluble silicon-based surfactant, an oil-soluble polymeric surfactant, or a mixture thereof.
Claim 55
Dependent Claim
25 words
The composition of claim 51 wherein the external phase further comprises 0% to about 30% by weight of the composition of a second topically-active compound.
Claim 56
Independent Claim
284 words
A method of treating the skin or hair with a topically-active compound comprising topically applying an effective amount of a water-in-oil-in-water multiple emulsion composition to skin or hair, said composition comprising: (a) about 40% to about 99% by weight of the composition of an external aqueous phase comprising: (i) water and (ii) about 0.1% to about 15% by weight of the external phase of a surfactant system capable of forming liquid crystals, wherein the surfactant system in the external phase is selected from the group consisting of a quaternary ammonium compound having two long alkyl (C 8 -C 22 ) chains, a di-long chain alkyl (C 8 -C 22 ) amine, a long chain fatty (C 8 -C 22 ) alcohol, an ethoxylated fatty (C 8 -C 22 ) alcohol, a double-tailed anionic surfactant, a double-tailed phospholipid, and mixtures thereof; and (b) about 1% to about 60% by weight of the composition of a primary water-in-oil emulsion, said primary emulsion comprising: (i) about 1% to about 95% by weight of the primary emulsion of an aqueous phase comprising a topically-effective amount of a first topically-active compound and water, (ii) about 0.5% to about 95% by weight of the primary emulsion of an oil phase comprising a volatile silicone compound, a nonvolatile silicone compound, a volatile hydrocarbon compound, a nonvolatile hydrocarbon compound, or a mixture thereof, and (iii) about 0.1% to about 20% by weight of the primary emulsion of a surfactant phase comprising a silicon-free surfactant or surfactant blend having an HLB value of about 10 or less, an oil-soluble silicon-based surfactant, an oil-soluble polymeric surfactant, or a mixture thereof, wherein droplets of the primary emulsion remain in contact with the skin or hair.
Claim 57
Independent Claim
284 words
A method of treating the skin or hair with a topically-active compound comprising topically applying an effective amount of a water-in-oil-in-water multiple emulsion composition to skin or hair, said composition comprising: (a) about 40% to about 99% by weight of the composition of an external aqueous phase comprising: (i) water and (ii) about 0.1% to about 15% by weight of the external phase of a surfactant system capable of forming liquid crystals, wherein the surfactant system in the external phase is selected from the group consisting of a quaternary ammonium compound having two long alkyl (C 8 -C 22 ) chains, a di-long chain alkyl (C 8 -C 22 ) amine, a long chain fatty (C 8 -C 22 ) alcohol, an ethoxylated fatty (C 8 -C 22 ) alcohol, a double-tailed anionic surfactant, a double-tailed phospholipid, and mixtures thereof; and (b) about 1% to about 60% by weight of the composition of a primary water-in-oil emulsion, said primary emulsion comprising: (i) about 1% to about 95% by weight of the primary emulsion of an aqueous phase comprising a topically-effective amount of a first topically-active compound and water, (ii) about 0.5% to about 95% by weight of the primary emulsion of an oil phase comprising a volatile silicone compound, a nonvolatile silicone compound, a volatile hydrocarbon compound, a nonvolatile hydrocarbon compound, or a mixture thereof, and (iii) about 0.1% to about 20% by weight of the primary emulsion of a surfactant phase comprising a silicon-free surfactant or surfactant blend having an HLB value of about 10 or less, an oil-soluble silicon-based surfactant, an oil-soluble polymeric surfactant, or a mixture thereof, wherein droplets of the primary emulsion remain in contact with the skin or hair.
Claim 58
Dependent Claim
228 words
A water-in-oil-in-water multiple emulsion composition comprising: (a) about 40% to about 99% by weight of the composition of an external aqueous phase comprising: (i) water and (ii) about 0.1% to about 15% by weight of the external aqueous phase of a surfactant system capable of forming liquid crystals, wherein the surfactant system in the external phase is selected from the group consisting of a mixture of cetyl alcohol, stearyl alcohol, dicetyldimmonium chloride, searylamidopropyldimethylamine and ceteareth-20; a mixture of distearyldimmonium chloride, cetrimonium chloride, cetyl alcohol and stearyl alcohol; a mixture of oleth-15, cetyl alcohol and stearyl alcohol; and mixtures thereof; and (b) about 1% to about 60% by weight of the composition of a primary emulsion, said primary emulsion comprising: (i) about 1% to about 95% by weight of the primary emulsion of an aqueous phase comprising a topically-effective amount of a first topically-active compound and water, (ii) about 5% to about 95% by weight of the primary emulsion of an oil phase comprising a volatile silicone compound, a nonvolatile silicone compound, a volatile hydrocarbon compound, a nonvolatile hydrocarbon compound, or a mixture thereof, and (iii) about 0.1% to about 20% by weight of the primary emulsion of a surfactant phase comprising a silicon-free surfactant or surfactant blend having an HLB value of about 10 or less, an oil-soluble silicon-based surfactant, an oil-soluble polymeric surfactant, or a mixture thereof.
Claim 59
Dependent Claim
228 words
A water-in-oil-in-water multiple emulsion composition comprising: (a) about 40% to about 99% by weight of the composition of an external aqueous phase comprising: (i) water and (ii) about 0.1% to about 15% by weight of the external aqueous phase of a surfactant system capable of forming liquid crystals, wherein the surfactant system in the external phase is selected from the group consisting of a mixture of cetyl alcohol, stearyl alcohol, dicetyldimmonium chloride, searylamidopropyldimethylamine and ceteareth-20; a mixture of distearyldimmonium chloride, cetrimonium chloride, cetyl alcohol and stearyl alcohol; a mixture of oleth-15, cetyl alcohol and stearyl alcohol; and mixtures thereof; and (b) about 1% to about 60% by weight of the composition of a primary emulsion, said primary emulsion comprising: (i) about 1% to about 95% by weight of the primary emulsion of an aqueous phase comprising a topically-effective amount of a first topically-active compound and water, (ii) about 5% to about 95% by weight of the primary emulsion of an oil phase comprising a volatile silicone compound, a nonvolatile silicone compound, a volatile hydrocarbon compound, a nonvolatile hydrocarbon compound, or a mixture thereof, and (iii) about 0.1% to about 20% by weight of the primary emulsion of a surfactant phase comprising a silicon-free surfactant or surfactant blend having an HLB value of about 10 or less, an oil-soluble silicon-based surfactant, an oil-soluble polymeric surfactant, or a mixture thereof.
Claim 60
Dependent Claim
210 words
A water-in-oil-in-water multiple emulsion composition comprising: (a) about 40% to about 99% by weight of the composition of an external aqueous phase comprising: (i) water and (ii) about 0.1% to about 15% by weight of the external aqueous phase of a surfactant system capable of forming liquid crystals, wherein the surfactant system in the external phase is selected from the group consisting of dicetyldimonium chloride, distearyldimonium chloride, di-palmitylamine, cetyl alcohol, stearyl alcohol, steareth-2, steareth-21, dioctylsodium sulfosuccinate, phosphatidylserine, phosphatidylcholine, and mixtures thereof; and (b) about 1% to about 60% by weight of the composition of a primary emulsion, said primary emulsion comprising: (i) about 1% to about 95% by weight of the primary emulsion of an aqueous phase comprising a topically-effective amount of a first topically-active compound and water, (ii) about 5% to about 95% by weight of the primary emulsion of an oil phase comprising a volatile silicone compound, a nonvolatile silicone compound, a volatile hydrocarbon compound, a nonvolatile hydrocarbon compound, or a mixture thereof, and (iii) about 0.1% to about 20% by weight of the primary emulsion of a surfactant phase comprising a silicon-free surfactant or surfactant blend having an HLB value of about 10 or less, an oil-soluble silicon-based surfactant, an oil-soluble polymeric surfactant, or a mixture thereof.
Claim 61
Dependent Claim
210 words
A water-in-oil-in-water multiple emulsion composition comprising: (a) about 40% to about 99% by weight of the composition of an external aqueous phase comprising: (i) water and (ii) about 0.1% to about 15% by weight of the external aqueous phase of a surfactant system capable of forming liquid crystals, wherein the surfactant system in the external phase is selected from the group consisting of dicetyldimonium chloride, distearyldimonium chloride, di-palmitylamine, cetyl alcohol, stearyl alcohol, steareth-2, steareth-21, dioctylsodium sulfosuccinate, phosphatidylserine, phosphatidylcholine, and mixtures thereof; and (b) about 1% to about 60% by weight of the composition of a primary emulsion, said primary emulsion comprising: (i) about 1% to about 95% by weight of the primary emulsion of an aqueous phase comprising a topically-effective amount of a first topically-active compound and water, (ii) about 5% to about 95% by weight of the primary emulsion of an oil phase comprising a volatile silicone compound, a nonvolatile silicone compound, a volatile hydrocarbon compound, a nonvolatile hydrocarbon compound, or a mixture thereof, and (iii) about 0.1% to about 20% by weight of the primary emulsion of a surfactant phase comprising a silicon-free surfactant or surfactant blend having an HLB value of about 10 or less, an oil-soluble silicon-based surfactant, an oil-soluble polymeric surfactant, or a mixture thereof.
References Cited (Backward Citations)
US4254105A
Cited
JPS58183611A
Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-08-11 | 2001-02-10 | 2001-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-08-11 | 2005-02-10 | 2005-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-08-11 | 2009-02-10 | 2009-08-12 | $7700.00 | Window Closed / Lapsed |