Skin tightening compositions
09999580 ยท 2018-06-19
Assignee
Inventors
- Lauren E. Manning (Hoboken, NJ)
- Miao WANG (Westfield, NJ, US)
- Angelike A. Galdi (Westfield, NJ)
- Catherine Chiou (Saddle Brook, NJ)
Cpc classification
A61K8/8152
HUMAN NECESSITIES
A61K8/8164
HUMAN NECESSITIES
A61K8/891
HUMAN NECESSITIES
A61K8/8147
HUMAN NECESSITIES
A61K8/895
HUMAN NECESSITIES
A61K8/8176
HUMAN NECESSITIES
International classification
A61K8/891
HUMAN NECESSITIES
A61K8/81
HUMAN NECESSITIES
Abstract
The present disclosure relates to cosmetic compositions that provide immediate skin-tightening and long-lasting improvements to the skin for the treatment of, for example, eye bags, facial wrinkles, and other age-related skin imperfections. The compositions comprise: (a) a first film former sodium silicate; (b) at least one second film former; (c) at least one polyvalent silicate thickener; (d) at least one anionic associative polymeric thickener; (e) at least one plasticizer; and (f) optionally at least one cosmetic powder.
Claims
1. A skin tightening aqueous film forming composition comprising: (a) from about 1% to about 10% by weight of a first film former that is sodium silicate; (b) from about 1% to about 10% by weight of a second film former that is pullulan; (c) from about 0.3% to about 0.7% by weight of at least one polyvalent silicate thickener; (d) from about 0.5% to about 15% by weight of at least one anionic associative polymeric thickener; (e) from about 2% to about 15% by weight of at least one plasticizer selected from the group consisting of glycerin, propylene glycol, butylene glycol, propanediol and a mixture thereof; and (f) optionally from about 0.1% to about 10% by weight of at least one cosmetic powder; wherein the composition provides a tightening sensation and reduces skin imperfections upon application to the skin.
2. The composition of claim 1, wherein the (a) first film former that is sodium silicate is present in an amount from about 3% to about 8% by weight of the total weight of the composition.
3. The composition of claim 1, wherein the second film former that is pullulan is present in an amount from 2% to 8% by weight of the total composition.
4. The composition of claim 1, wherein the (c) at least one polyvalent silicate thickener is selected from the group consisting of magnesium silicate, calcium silicate, aluminum silicate, a polyvalent silicate clay, montmorillonite, bentonite, smectite, and mixtures thereof.
5. The composition of claim 1, wherein the (c) at least one polyvalent silicate thickener comprises montmorillonite.
6. The composition of claim 1, wherein the polyvalent silicate thickener(s) is/are present in an amount of 0.4% to 0.6% by weight of the total composition.
7. The composition of claim 1, wherein the polyvalent silicate thickener(s) is/are present in an amount of about 0.5% by weight of the total composition.
8. The composition of claim 1, wherein the (d) at least one anionic associative polymeric thickener is selected from the group consisting of an acrylate copolymer, an acrylates/beheneth-25 methacrylate copolymer, an acrylates/steareth-20 methacrylate copolymer, and mixtures thereof.
9. The composition of claim 1, wherein the anionic associative polymeric thickener(s) is/are present in an amount from 1% to 10% by weight of the total composition.
10. The composition of claim 1, wherein the plasticizer(s) is/are present in an amount from 5% to 13% by weight of the total composition.
11. The composition of claim 1, wherein the composition comprises a (f) at least one cosmetic powder selected from the group consisting of talc, mica, magnesium carbonate, calcium carbonate, magnesium silicate, aluminum magnesium silicate, silica, titanium dioxide, zinc oxide, red iron oxide, yellow iron oxide, black iron oxide, polyethylene powder, methacrylate powder, polymethyl methacrylate, polystyrene powder, silk powder, crystalline cellulose, and mixtures thereof.
12. The composition of claim 11, wherein the (f) at least one cosmetic powder comprises polymethyl methacrylate.
13. The composition of claim 1, wherein the pH of the composition is from about 10 to about 12.
14. A method for improving the appearance of skin comprising applying the composition of claim 1 to the skin.
15. The methods of claim 14, wherein improving the appearance of skin comprises treating or reducing the appearance of wrinkles, blemishes, dryness, roughness, dullness, age spots, sagging, eye bags, and/or puffy skin.
16. A method for firming and/or tightening the skin comprising applying the composition of claim 1 to the skin.
17. A skin tightening aqueous film forming composition comprising: (a) from about 1% to about 10% by weight of a first film former that is sodium silicate; (b) from about 2% to about 8% by weight of a second film former that is pullulan; (c) from about 0.3% to about 0.7% by weight of at least one polyvalent silicate thickener; (d) from about 0.5% to about 15% by weight of at least one anionic associative polymeric thickener selected from the group consisting of an acrylate copolymer, an acrylates/beheneth-25 methacrylate copolymer, an acrylates/steareth-20 methacrylate copolymer, and a mixture thereof; (e) from about 2% to about 15% by weight of at least one plasticizer selected from the group consisting of glycerin, propylene glycol, butylene glycol, propanediol, and a mixture thereof; and (f) from about 0.1% to about 10% by weight of at least one cosmetic powder; wherein the composition provides a tightening sensation and reduces skin imperfections upon application to the skin.
18. The composition of claim 17, wherein the (d) at least one anionic associative polymeric thickener comprises acrylates copolymer.
19. The composition of claim 17, wherein the (f) at least one cosmetic powder comprises polymethyl methacrylate.
Description
DESCRIPTIONS OF THE DRAWINGS
(1) Implementation of the present technology will now be described, by way of example only, with reference to the attached figures, wherein:
(2)
(3)
(4) It should be understood that the various aspects provided by the figures are not limited to the arrangements and instrumentality shown in the figures.
DETAILED DESCRIPTION OF THE DISCLOSURE
(5) As mentioned previously, the present disclosure relates to cosmetic compositions that provide instantaneous and long-lasting improvement to the skin. In particular, the compositions provide a tightening effect on skin and are therefore useful for treating eye bags, facial wrinkles, and other age-related skin imperfections. Typically, the compositions of the instant disclosure comprise: (a) a first film former sodium silicate; (b) at lease one second film former; (c) at lease one polyvalent silicate thickener; (d) at least one anionic associative polymeric thickener; (e) at lease one plasticizer; and (f) optionally, at least one cosmetic powder. For example, the compositions may comprise:
(6) (a) from about 1% to about 10% by weight of first film former sodium silicate;
(7) (b) from about 1% to about 10% by weight of at least one second film former;
(8) (c) from about 0.3% to about 0.7% by weight of at least one polyvalent silicate thickener;
(9) (d) from about 0.5% to about 15% by weight of at least one anionic associative polymeric thickener;
(10) (e) from about 2% to about 15% by weight of at least one plasticizer; and
(11) (f) optionally, from about 0.1% to about 10% by weight of at least one cosmetic powder.
(12) Upon application to the skin, the compositions provide an immediate tightening sensation and reduce skin imperfections.
(13) The compositions can have an alkaline pH. For example, in some cases, the pH may be in the range of 10 to 12, 10.5 to 11.5, or 11 to 11.5.
(14) Typically, the film former sodium silicate is present in an amount from 1% to 10%, 2% to 9%, 3% to 8%, 3% to 7%, 4% to 6%, or 4% to 5%, by weight of the total weight of the composition.
(15) The at least one second film former may be selected from the group consisting of colloidal silica, pullulan, Polycacrylate-21 (and) acrylates/dimethylaminoethylmethacrylate copolymer, Polyurethanes, polysaccharides, polyvinylpyrrolidone, polyacrylates, acrylates copolymer, and mixtures thereof. In some cases, the second film former is a polysaccharide, which may have one or more free hydroxyl groups. Furthermore, in some cases, the polysaccharide is pullulan. Typically, the second film former is present in an amount from 1% to 10%, 2% to 8%, 3% to 7%, or 4% to 6%, by weight of the total composition.
(16) The total amount of the film former sodium silicate and the additional film former(s) (i.e., the total weight of all film formers in the composition) may be present in an amount from 1% to 20%, 1% to 18%, 1% to 16%, 1% to 14%, 1% to 12%, 1% to 10%, 1% to 8%, 2% to 20%, 2%, 18%, 2% to 16%, 2% to 16%, 2% to 14%, 2% to 12%, 2% to 10%, 2% to 8%, 3% to 20%, 3% to 18%, 3% to 16%, 3% to 14%, 3% to 12%, 3% to 10%, 3% to 8%, 4% to 20%, 4% to 18%, 4% to 16%, 4% to 14%, 4% to 14%, 4% to 12%, 4% to 10%, 4% to 8%, 5% to 20%, 5% to 18%, 5% to 16%, 5% to 14%, 5% to 12%, 5% to 10%, 5% to 8%, or 3% to 15%, by weight of the total weight of the composition.
(17) The polyvalent silicate thickener may be selected from the group consisting of magnesium silicate, calcium silicate, aluminum silicate, a polyvalent silicate clay, montmorillonite, bentonite, smectite, and mixtures thereof. In some cases, the polyvalent silicate thickener is montmorillonite. In some cases, the polyvalent silicate thickener is organically modified clay such as kaolinite, smectite, bentonite, and/or montmorillonite The polyvalent silicate thickener is typically present in an amount of 0.1% to 0.9%, 0.1% to 0.8%, 0.1% to 0.7%, 0.2% to 0.9%, 0.2% to 0.8%, 0.2% to 0.7%, 0.3% to 0.9%, 0.3% to 0.8%, 0.3% to 0.7%, 0.4% to 0.9%%, 0.4% to 0.8%, 0.4% to 0.7%, 0.4% to 0.9%, 0.4% to 0.8%, 0.4% to 0.7%, 0.4% to 0.6%, or about 0.5%.
(18) The compositions of the disclosure typically include at least one anionic associative polymeric thickener. The at least one anionic associative polymeric thickener may be selected from the group consisting of an acrylate copolymer, an acrylates/beheneth-25 methacrylate copolymer, an acrylates/steareth-20 methacrylate copolymer, and mixtures thereof. Furthermore, the at least one anionic associative polymeric thickener may include acrylates/steareth-20 methacrylate copolymer such as Aculyn 22 (Dow Chemical Company); acrylates/beneneth-25 methacrylate copolymer such as Novethix (Lubrizol); acrylate copolymer such as Carbopol Aqua SF-1 Polymer (Lubrizol). The at least one anionic associative polymer thickener is typically present in an amount from 0.5% to 15%, 1% to 15%, 1% to 14%, 1% to 13%, 1% to 12%, 1% to 10%, 1% to 8%, 2% to 15%, 2% to 14%, 2% to 13%, 2% to 12%, 2% to 10%, 2% to 8%, or 2% to 6%, by weight of the total composition. Many anionic associative polymeric thickeners are water-soluble, and increase the viscosity of water or form an aqueous gel when the cosmetic compositions of the disclosure are dispersed/dissolved in water.
(19) The compositions of the disclosure typically include at least one plasticizer. The at least one plasticizer may be, for example, propylene glycol, polyethylene glycol, glycerol, sorbitol, dipropylene glycol, glycerin, propane diol, triethyl citrate, isohexadecane, and sodium hyaluronate. Typically, the plasticizer is present in an amount of 1% to 15%, 1% to 14%, 1% to 13%, 1% to 12%, 1% to 11%, 1% to 10%, 2% to 15%, 2% to 14%, 2% to 13%, 2% to 12%, 2% to 11%, 2% to 10%, 5% to 15%, 5% to 14%, 5% to 13%, 5% to 12%, 5% to 11%, 5% to 10%, or 9% to 11% by weight of the total weight of the composition.
(20) The compositions described herein may include at least one cosmetic powder. Cosmetic powders can be used to help formulate compositions that are smooth and soft on the skin. Representative cosmetic powders include, but are not limited to, talc, mica, magnesium carbonate, calcium carbonate, magnesium silicate, aluminum magnesium silicate, silica, titanium dioxide, zinc oxide, red iron oxide, yellow iron oxide, black iron oxide, polyethylene powder, methacrylate powder, polystyrene powder, silk powder, crystalline cellulose, starch, titanated mica, iron oxide titanated mica, bismuth oxychloride, and the like. Additional powders include, but are not limited to, inorganic powders, such as gums, chalk, Fuller's earth, kaolin, sericite, muscovite, phlogopite, synthetic mica, lepidolite, biotite, lithia mica, vermiculite, aluminum silicate, starch, smectite clays, alkyl and/or trialkyl aryl ammonium smectites, chemically modified magnesium aluminum silicate, organically modified montmorillonite clay, hydrated aluminum silicate, fumed aluminum starch octenyl succinate barium silicate, calcium silicate, magnesium silicate, strontium silicate, metal tungstate, magnesium, silica alumina, zeolite, barium sulfate, calcined calcium sulfate (calcined gypsum), calcium phosphate, fluorine apatite, hydroxyapatite, ceramic powder, metallic soap (zinc stearate, magnesium stearate, zinc myristate, calcium palmitate, and aluminum stearate), colloidal silicone dioxide, and boron nitride; organic powder, such as polyamide resin powder (nylon powder), cyclodextrin, methyl polymethacrylate powder, copolymer powder of styrene and acrylic acid, benzoguanamine resin powder, poly(ethylene tetrafluoride) powder, and carboxyvinyl polymer, cellulose powder, such as hydroxyethyl cellulose and sodium carboxymethyl cellulose, ethylene glycol monostearate; inorganic white pigments, such as magnesium oxide. Representative cosmetic powders include, for example, polymethylsilsesquioxane, methyl polymethacrylate crosspolymer, Nylon-12, silica and boron nitride, and combinations thereof.
(21) In some cases, the cosmetic powder may be selected from the group consisting of talc, mica, magnesium carbonate, calcium carbonate, magnesium silicate, aluminum magnesium silicate, silica, titanium dioxide, zinc oxide, red iron oxide, yellow iron oxide, black iron oxide, polyethylene powder, methacrylate powder, polymethyl Methacrylate, polystyrene powder, silk powder, crystalline cellulose, and mixtures thereof. In some cases, the cosmetic powder is polymethyl methalcrylate.
(22) When present, the one or more cosmetic powders may be present in an amount of 0.1% to about 25%, 0.1% to 20%, 0.1% to 15%, 0.1% to 10%, 0.1% to 8%, 0.1% to 6%, 0.1% to 4%, 0.5% to 20%, 0.0.5% to 15%, 0.5% to 10%, 0.5% to 8%, 0.5% to 6%, 0.5% to 4%, 1% to 20%, 1% to 15%, 1% to 10%, 1% to 8%, 1% to 6%, 1% to 4%, 2% to 10%, 2% to 8%, 2% to 6%, or 3% to 7%, based on the total weight of the composition. The instant disclosure also relates to methods for improving the appearance of skin comprising applying the compositions described herein to the skin. Furthermore, the instant disclosure relates to methods for firming and/or tightening the skin comprising applying the compositions described herein to the skin and forming a skin-tightening film or layer on the skin. In some instances, the compositions are applied to the skin of the face, and/or more specifically around the eyes, around the mouth, and/or around the neck. The methods of improving the appearance of skin include methods for treating or reducing the appearance of wrinkles, blemishes, dryness, roughness, dullness, age spots, sagging, and/or puffy skin. The compositions of the present disclosure may be in the form of a liquid dispersion, a gel, a cream, a lotion, a mousse, or a spray. The composition may be in the form of a liquid emulsion, such as a liquid-lotion, liquid-gel, liquid-cream, or a cream emulsion, such as a thick cream or gel-cream, foam or mousse wherein the liquid emulsion form has a thinner consistency than the cream emulsion form. The compositions of the present disclosure are typically aqueous compositions. For example, the compositions may have 20% to 80%, 20% to 70%, 20% to 60%, 20% to 50%, 20% to 40%, 20% to 30%, 30% to 80%, 30% to 70%, 30% to 60%, 30% to 50%, 30% to 40%, 35% to 65%, or 40% to 60% water.
EXAMPLES
(23) The following Examples are provided for illustrative purposes only, and are not intended to be limiting.
Example 1 (Formulas 1-22)
(24) TABLE-US-00001 TABLE 1 Formula Ingredient/US INCI 1 2 3 4 5 Name % % % % % Sodium Silicate 3.5-5.0 5.5-5.8 6-6.8 7.5-8 8.5-9.5 Polyvalent Silicate.sup.1 0.50-0.70 0.6-0.7 0.3-0.5 0.4-0.6 0.6-0.7 Acrylates Copolymer 0.5-2.0 6-10 11-15 2-6 9-13 Second Film Former.sup.2 4.0-5.0 3.0-4.0 8-10 2-3 5-4 Cosmetic Powder 3.0 3.0 3.0 3.0 3.0 Water QS QS QS QS QS Plasticizer.sup.3 8-10 4.0-6.0 10-12 5-7 3-5 .sup.1Vermiculite, Montmorillonite. .sup.2Polyurethanes, Polysaccharides, Polyvinylpyrrolidone, Acrylates and Colloidal Silicate. .sup.3Propylene Glycol, Polyethylene Glycol, Glycerol, Sorbitol, Dipropylene Glycol, Glycerin, Propanediol, Triethyl Citrate, Isohexadecane.
(25) TABLE-US-00002 TABLE 2 Formula Ingredient/US INCI 6 7 8 9 10 11 Name % % % % % % Sodium Silicate 5 5.6 6.5 7.5 8 9 Montmorillonite 0.5 0.7 0.4 0.6 0.6 0.7 Acrylates 3 7 13 4 12 11 Copolymer Pullulan 5 4 9 2 5 4 Polymethyl 3 4.5 7 4 3 3 Methalacrylate Water QS QS QS QS QS QS Glycerin 10 5 11 6 4 8
(26) TABLE-US-00003 TABLE 3 Formula Ingredient/US INCI 12 13 14 15 16 Name % % % % % Polyvalent Silicate.sup.1 0.50-0.70 0.6-0.7 0.3-0.5 0.4-0.6 0.6-0.7 Acrylates Copolymer 8.0-12.0 6-10 11-15 2-6 9-13 Film Former.sup.2 4.0-5.0 3.0-4.0 8-10 2-3 5-4 Cosmetic Powder 3.0 3.0 3.0 3.0 3.0 Water QS QS QS QS QS Plasticizer.sup.3 8-10 4.0-6.0 10-12 5-7 3-5 .sup.1Vermiculite, Montmorillonite. .sup.2Polyurethanes, Polysaccharides, Polyvinylpyrrolidone, Acrylates copolymer and Colloidal Silicate. .sup.3Propylene Glycol, Polyethylene Glycol, Glycerol, Sorbitol, Dipropylene Glycol, Glycerin, Propanediol, Triethyl Citrate, Isohexadecane.
(27) TABLE-US-00004 TABLE 4 Formula Ingredient/US INCI 17 18 19 20 21 22 Name % % % % % % Montmorillonite 0.5 0.7 0.4 0.6 0.6 0.7 Acrylates 3 7 13 4 12 11 Copolymer Pullulan 5 4 9 2 5 4 Polymethyl 3 4.5 7 4 3 3 Methalacrylate Water QS QS QS QS QS QS Glycerin 10 5 11 6 4 8
(28) In making the formulations in the above tables, the following procedure may be used. The polyvalent silicate is introduced in portions with medium sweep and shear to the main kettle containing water at room temperature and mixed for about 5 to 10 minutes, or until the ingredient is fully hydrated and the mixture is homogenous. The polysaccharide is added in portions with medium sweep and shear. Then, the cosmetic powder is added. The mixture is mixed for 5 to 10 minutes or until uniform. The glycerin is added and mixed for 5 minutes or until uniform. The homogenizer is turned off. Then, the vacuum is pulled until air bubbles are removed. The anionic associative polymeric thickener is slowly added directly to the main kettle as to not cause aeration. While still under the vacuum, continue to mix the ingredients. The sodium silicate is added slowly to neutralize the thickener, using low sweep and pull vacuum. Mixing is continued until the thickener is neutralized and the formula appears uniform.
Example 2 (Comparative)
(29) TABLE-US-00005 TABLE 5 Formula 23 24 25 26 27 28 29 US INCI Name % % % % % % % Sodium Silicate 5 5 5 5 5 5 5 Polyvalent Silicate 1 1 1 1 1 1 0 Acrylates 3 3 3 3 3 3 3 Copolymer Pullulan 5 5 5 5 5 5 5 Polymethyl 3 0 0 0 3 3 6 Methalacrylate Silica 0 5 5 0 0 0 0 Sodium Hyaluronate 0 0 0 0 0.25 0.5 0 Plasticizer 10 0.5 3.2 3 10 10 10 Water QS QS QS QS QS QS QS TOTAL (%) 100 100 100 100 100 100 100 Table 5 shows various compositions which were formed using the same process as Example 1.
(30) If the amount of polyvalent silicate is equal to 1%, like in Formulas 23-28, the compositions (the films) crack after application to the skin. If the polyvalent silicate is not present in the formula (0%), like in Formula 29, the composition is too soft and does not provide the properties of a skin tightener. When the amount of polyvalent silicate is greater than 0% but less than 1%, or about 0.5%, the composition provides an unexpectedly strong, flexible, and durable skin tightening composition.
(31) The present application was compared to several commercially available products such as Serious Skincare Firm-A-Face XR All Over Skin Tightener, Peter Thomas Roth Instant FIRMx Temporary Face Tightener, Fusion Beauty Nip Line Erase Instant Line Remover, Hydroxatone 90 Second Wrinkle Reducer, NuNutrients Facelift, Renoir No Lines Temporary Wrinkle Remover and Instantly Ageless. The commercially available products provided a tightening sensation and visual changes to the skin within 5 minutes. Nonetheless, they presented many negative characteristics upon drying such as whitening, cracking of the film, and incompatibility with various makeup regiments. Furthermore, the beneficial results (e.g., the skin tightening properties) were not long-lasting. The compositions of the instant disclosure were long-lasting. The compositions retained their beneficial results (e.g., the skin tightening properties) without whitening, cracking, or peelings for a much longer period of time than the commercially available products, e.g., longer than 30 min, 1 hour, 3 hours, 4 hours, 5 hours, or 6 hours.
(32) In the section below, Formula 6 from Example 1 (Table 2) is compared with Instantly Ageless. Instantly Ageless contains sodium silicate, magnesium aluminum silicate, acetyl hexapeptide-3, phenoxyethanol, ethylhexylglycerin, water, Yellow 5 and Red 40.
(33) To compare the two compositions, an instrumental evaluation, utilizing the Cutometer MPR 580 (Courage and Khazaja, Kln, Germany), was carried out. The Cutometer Study measures the skin elasticity of the eyebags. The objective of this study is to collect cutometer data to determine the relationship between skin elasticity and aesthetician grading for eyebag appearance and to correlate changes in skin elasticity and wrinkle visibility after application of film technology with changes in eyebag grade.
(34) An expert evaluation of eye bags was also performed by an aesthetician using a 7 point scale atlas grading. The efficacy of the product was examined at T=0, 10 min, 30 min, 3 hours, and 6 hours. Women with baseline Grade 4 eye bags experience an average of 2.5 grade reduction in puffiness for 6+ hours after application of the compositions described herein.
(35) After application of Instantly Ageless to the skin, an immediate tightening of the skin was observed, but the tightening almost immediately began to dissipate and the product formed white film, cracked, and caused slight irritation. Instantly Ageless showed an average reduction of 1 grade with a higher tendency of film flaws such as whitening and cracking. On the contrary, the inventive compositions exhibited long-lasting results for at least 6 hours and an average of 2.5 grade reduction in eye bag puffiness.
(36)
(37) As observed in
(38)
Example 3 (Film Property Tests)
(39) Thickeners were tested according to three criteria: compatibility, viscosity, and tightening. Below is a Table of the different thickeners tested with their results.
(40) TABLE-US-00006 TABLE 6 Thickeners INCI Name Compatibility Viscosity Tightening Acrylates/steareth-20 + + methacrylate copolymer.sup.1 Acrylates/beneneth-25 + + + methacrylate copolymer.sup.2 PVP.sup.3 + + Acrylates/C10-30 alkyl acrylate N/A copolymer.sup.4 Acrylates/beneneth-25 + + methacrylate copolymer.sup.5 Acrylates/steareth-20 + + methacrylate copolymer.sup.6 Acrylates/C10-30 alkyl acrylate + copolymer.sup.7 Acrylates/C10-30 alkyl acrylate + copolymer.sup.8 Acrylate copolymer.sup.9 + + + Acrylates/C10-30 alkyl acrylate + + copolymer.sup.10 Acrylates/C10-30 alkyl acrylate + copolymer.sup.11 Montmorillonite.sup.12 + + + .sup.1Aculyn 22 Polymer, available from Dow Chemical. .sup.2Novethix L-10 Polymer, available from Lubrizol. .sup.3Flexithix, available from Ashland .sup.4Carbopol 1382 Polymer, available from Lubrizol. .sup.5Aculyn 28 Polymer, available from Lubrizol. .sup.6Aculyn 88 Polymer, available from Lubrizol. .sup.7Carbopol Ultrez 21 Polymer, available from Lubrizol. .sup.8Carbopol Ultrez 20 Polymer, available from Lubrizol. .sup.9Carbopol Aqua SF-1 Polymer, available from Lubrizol. .sup.10Pemulen TR-2 Polymer, available from Lubrizol. .sup.11Pemulen TR-1 Polymer, available from Lubrizol. .sup.12GelWhite-H XR, available from BYK Additives & Instruments.
(41) Table 6 shows that the acrylates/benenth-25 methacrylate copolymer, the acrylates copolymer, and the montmorillonite presented positive results (+) for all three parameters: compatibility, viscosity and tightening.
(42) Film formers were tested according to three criteria: compatibility, formed film, and tightening. Below is a table of the different film formers tested with their respective results.
(43) TABLE-US-00007 TABLE 7 Film Formers Formed INCI Name Compatibility Film Tightening Polyurethane-35.sup.1 + Polyurethan-2 (and) Polymethyl + methacrylate.sup.2 Pullulan + + + PVP.sup.3 + + Polycacrylate-21 (and) + + + acrylates/ dimethylaminoethylmethacrylate copolymer.sup.4 Polyacrylate-2 crosspolymer.sup.5 N/A N/A Polyacrylate-32.sup.6 + AMP-acrylates/allyl methacrylate + coloymer.sup.7 Silica.sup.8 + + + Sodium Silicate + + + .sup.1Baycusan C 1004, available from Bayer Material Science. .sup.2Hybridur 875 Poymer Dispersion, available from Air Products. .sup.3PVP K30L, available from Ashland. .sup.4Syntran PC5100 CG, available from Interpolymer .sup.5Fixate Superhold Polymer, available from Lubrizol .sup.6Fixate Design Polymer, available from Lubrizol .sup.7Fixate G100L PR Polymer, available from Lubrizol .sup.8Colloidal Silica, Ludox AM X6021, available from Grace Davison.
(44) Pullulan, polycacrylate-21 (and) acrylates/dimethylaminoethylmethacrylate copolymer, silica, and sodium silicate provided the best film-forming properties, as shown by the positive (+) results for all three properties: compatibility, formed film, and tightening.
(45) A standard safety test for eye products, called BCOP (Bovine Corneal Opacity and Permeability), was conducted in vitro to measure the level of irritation of the products. The results showed that the inventive composition was cosmetically acceptable and caused only mild, if any, irritation.
Example 4 (pH Study with Composition Containing Sodium Silicate)
(46) A study of the pH was performed. The results showed that if the pH is below 10, the composition became more solid. However, it was found that when the pH is in the range of 10 to 12, or 11 to 11.5, the composition exhibits special properties. For example, the composition exhibited excellent film-forming properties on the skin and the film exhibited unexpectedly long-lasting strength, durability, and flexibility (elasticity).
(47) As used herein, all percentages are by weight (wt. %) of the total composition.
(48) All numeric ranges are inclusive of narrower ranges; delineated upper and lower range limits are interchangeable to create further ranges not explicitly delineated. All ranges and values disclosed herein are inclusive and combinable. For examples, any value or point described herein that falls within a range described herein can serve as a minimum or maximum value to derive a sub-range, etc.
(49) As used herein, the term tightening means that the film contracts in a manner that skin has a tighter sensation to the user, and smooths skin imperfections upon application on the skin, which reduces the visual appearance of wrinkles in the skin.
(50) As used herein, the terms comprising, having, and including are used in their open, non-limiting sense.
(51) The terms a, an, and the are understood to encompass the plural as well as the singular.
(52) The expression at least one means one or more (and vice versa) and thus includes individual components as well as mixtures/combinations.
(53) Film former or film forming agent as used herein means a polymer or resin that leaves a film on the substrate to which it is applied, for example, after a solvent accompanying the film former has evaporated, absorbed into and/or dissipated on the substrate.
(54) All publications and patent applications cited in this specification are herein incorporated by reference, and for any and all purposes, as if each individual publication or patent application were specifically and individually indicated to be incorporated by reference. In the event of an inconsistency between the present disclosure and any publications or patent application incorporated herein by reference, the present disclosure controls.
(55) The foregoing description illustrates and describes the disclosure. Additionally, the disclosure shows and describes only the exemplary embodiments but, as mentioned above, it is to be understood that it is capable to use in various other combinations, modifications, and environments and is capable of changes or modifications within the scope of the disclosed concepts as expressed herein, commensurate with the above teachings and/or the skill or knowledge of the relevant art. The embodiments described herein above are further intended to explain best modes known by applicant and to enable others skilled in the art to utilize the disclosure in such, or other, embodiments and with the various modifications required by the particular applications or uses thereof. Accordingly, the description is not intended to limit the invention to the form disclosed herein. Also, it is intended to the appended claims be construed to include alternative embodiments.