Polymer combinations to improve fragrance longevity

Abstract

A polymer combination may be incorporated into a hydroalcoholic solution to increase perfume longevity. The polymer combination may include at least one plant-based hydrophobic polymer, a hydrophilic polymer, a third cosmetically acceptable sensory polymer, and an essential oil having extended perfume strength in a hydroalcoholic solution. The ternary polymer combination may synergistically form a film network on the skin surface that locks in perfume ingredients. The combination may provide the unexpected film-forming properties of essential oils in hydroalcoholic solutions, thereby providing a film matrix and adhesion for perfume ingredients to attach / retain on the skin.

Description

Technical Field

[0001] The present disclosure relates generally to fragrance longevity and, more particularly, to polymer combinations in hydroalcoholic solutions that enhance fragrance longevity. Background Art

[0002] Many perfume wearers complain that the perfume does not last long, and they may conclude that they do not apply enough perfume. The concentration of the perfume may also affect the longevity of the perfume, because generally the more alcohols present in the perfume, the faster its scent may fade. Generally speaking, wearers want the perfume to have a long-lasting effect over time when applied to the wearer's skin, without the need for additional applications. Summary of the invention

[0003] Embodiments of the present disclosure may provide a system for improving the longevity of a fragrance, the system comprising: a polymer combination comprising at least one plant-based hydrophobic polymer, a hydrophilic polymer, and a third cosmetically acceptable sensory polymer; and an essential oil in a hydroalcoholic solution, wherein the polymer combination creates a film network on the surface of the skin that locks the essential oil to improve the longevity of the fragrance. The at least one plant-based hydrophobic polymer may be ethyl cellulose. Ethyl cellulose may be present at 0.01%-7.00% of the system. The at least one plant-based hydrophobic polymer may be selected from the group consisting of ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose, and / or carboxymethyl cellulose (cellulose gum). The hydrophilic polymer may be poloxamer 407 and PPG-12 / SMDI copolymer. Poloxamer 407 and PPG-12 / SMDI copolymer may be present at 0.01%-5.00% of the system. The hydrophilic polymer may be selected from the group consisting of poloxamer 407 and PPG-12 / SMDI copolymer, poloxamer 338 and PPG-12 / SMDI copolymer, PPG-17 / IPDI / DMPA copolymer, poloxamer 407, poloxamer 338 and / or poloxamer 184. The third cosmetically acceptable sensory polymer may be polyurethane-1. Polyurethane-1 may be present at 0.005% to 5% of the system. The third cosmetically acceptable sensory polymer may be selected from the group consisting of polyurethane-1, polyurethane-18, polyurethane-34, polyurethane-35, polyurethane-48, polyurethane-64, polyurethane-21, PPG-12 / SMDI copolymer, PPG-51 / SMDI copolymer and / or PPG-8 / SMDI copolymer. The essential oil in a hydroalcoholic solution may comprise 5%-95% ethanol, 0-25% water and 0.1%-25% essential oil, wherein the cLogP is 0.7-7.0. The essential oil content may be at least 0.5% of the system.

[0004] Other embodiments of the present disclosure may provide a system for improving the life of a fragrance, the system comprising: a polymer combination comprising ethylcellulose, poloxamer 407 and PPG-12 / SMDI and polyurethane-1; and an essential oil in a hydroalcoholic solution, wherein the polymer combination creates a film network on the surface of the skin that locks the essential oil to improve the life of the fragrance. The polymer combination may account for 0.75% of the system, ethylcellulose may account for 0.45% of the system, poloxamer 407 and PPG-12 / SMDI copolymer may account for 0.29% of the system, and polyurethane-1 may account for 0.01% of the system. The polymer combination may account for 0.5% of the system, ethylcellulose may account for 0.45% of the system, poloxamer 407 and PPG-12 / SMDI copolymer may account for 0.04% of the system, and polyurethane-1 may account for 0.01% of the system. The polymer combination may account for 1% of the system, ethylcellulose may account for 0.50% of the system, poloxamer 407 and PPG-12 / SMDI copolymer may account for 0.49% of the system, and polyurethane-1 may account for 0.01% of the system. The polymer combination may account for 1.46% of the system, ethylcellulose may account for 0.95% of the system, poloxamer 407 and PPG-12 / SMDI copolymer may account for 0.50% of the system, and polyurethane-1 may account for 0.01% of the system.

[0005] Additional embodiments of the present disclosure may provide a system for improving fragrance longevity, the system comprising: a polymer combination comprising at least one plant-based hydrophobic polymer present in the range of 0.01%-7.00% of the system, a hydrophilic polymer present in the range of 0.01%-5.00% of the system, and a third cosmetically acceptable sensory polymer present in the range of 0.005%-5% of the system; and an essential oil in a hydroalcoholic solution, the essential oil having a cLogP of 0.7-7.0, wherein the polymer combination creates a film network on the skin surface that locks in the essential oil to improve fragrance longevity. The at least one plant-based hydrophobic polymer may be ethylcellulose, the hydrophilic polymer may be poloxamer 407 and PPG-12 / SMDI copolymer, and the third cosmetically acceptable sensory polymer may be polyurethane-1. The essential oil content is at least 0.5% of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] For a more complete understanding of the present disclosure, reference is now made to the following description taken in conjunction with the accompanying drawings, in which:

[0007] Figure 1A and Figure 1B depicts a glass slide with a drop of sample including and not including a polymer combination according to embodiments of the present disclosure;

[0008] Figure 2 depicts the results of headspace GS / MS peak intensity with and without polymer combinations; and

[0009] Figure 3 Headspace GC / MS analysis spectra from 0 to 10 hours are depicted. DETAILED DESCRIPTION

[0010] Embodiments of the present disclosure can provide a polymer combination in a hydroalcoholic solution that improves fragrance longevity. The polymer combination can include at least one plant-based hydrophobic polymer, a hydrophilic polymer, a third cosmetically acceptable sensory polymer, and an essential oil in a hydroalcoholic solution to provide extended fragrance intensity.

[0011] This combination of polymers according to embodiments of the present disclosure can utilize the transfer-resistant film former technology of food-grade and medical-grade polymers. The ternary polymer combination can synergistically form a film network on the skin surface that locks in the fragrance ingredients. The polymer combination can provide the unexpected film-forming properties of essential oils in hydroalcoholic solutions, thereby providing a film matrix and adhesion for the fragrance ingredients to attach / retain on the skin. This film-forming property is reflected in Figure 1A and Figure 1B , the figures depict slides with a drop of sample that does and does not include a polymer combination.

[0012] In an embodiment of the present disclosure, at least one plant-based hydrophobic polymer may be Ethocel Standard 45 Premium (INCI name: ethylcellulose) manufactured by DuPont. Ethylcellulose is a plant-based polymer used as a film former in cosmetic compositions (i.e., promoting film formation on the skin and improving the water resistance of the film) and may be present in 0.01%-7.00% of the total composition. Other plant-based hydrophobic polymers that may be used in addition to or in place of ethylcellulose may include Ethocel Standard 45 Premium manufactured by Celotech Chemical Co., Ltd. H30000, PC grade Natrosol manufactured by Ashland tM 250 HHR hydroxyethyl cellulose, 100 CP, NF (HY112) manufactured by Spectrum Chemical Mfg Corp. HEC CF-G or HECC CF-V manufactured by Sumitomo Seika Chemicals Co., Ltd., and / or Vida-Care HEC manufactured by Univar Solutions (each of these has the INCI name: hydroxyethyl cellulose). Additional plant-based hydrophobic polymers may include Celotech Chemical Co., Ltd. ME30M, Benecel manufactured by Ashland TM E4M polymer and / or PrimaFlo manufactured by Ashland TM MP3295A polymer (each of these has the INCI name: Hydroxypropyl Methylcellulose). Other plant-based hydrophobic polymers may include HYDROXYPROPYL METHYLCELLULOSE manufactured by Quimica Amtex and Amtex Chemicals, LLC. Low viscosity sodium carboxymethylcellulose (CA193) manufactured by Spectrum Chemical Mfg. Corp., and / or medium viscosity sodium carboxymethylcellulose (CA192) manufactured by Spectrum Chemical Mfg. Corp. (Each of these has the INCI name: Carboxymethylcellulose (Cellulose Gum)).

[0013] The hydrophilic polymer used in the polymer combination according to the embodiment of the present disclosure may be manufactured by DKSH North America, Inc. EG412 (INCI name: Poloxamer 407 and PPG-12 / SMDI copolymer), which is a film former to enhance the texture of the cosmetic. This polymer may have thermosetting properties based on skin temperature and may be present at 0.01%-5.00% of the total composition. Other hydrophilic polymers may include EG412 manufactured by DKSH North America Inc. EG 312 (INCI name: Poloxamer 338 and PPG-12 / SMDI copolymer), manufactured by Lubrizol UR 450 polymer (INCI name: PPG-17 / IPDI / DMPA copolymer), manufactured by BASF Care Creations F 127NF Prill FLEX or F127NF Prill or manufactured by SolvayNovecare F 127NF (each of these has the INCI name: Poloxamer 407), manufactured by BASF Care Creations F 108NF Prill (INCI name: Poloxamer 338) and / or L 64 (INCI name: Poloxamer 184).

[0014] The third cosmetically acceptable sensory polymer used in the polymer combination according to embodiments of the present disclosure may be BASF manufactured by BASF in the range of 0.005% to 5% of the total composition. PUR (INCI name: Polyurethane-1). Polyurethane-1 is a copolymer of terephthalic acid monomers, adipic acid, hexylene glycol, neopentyl glycol, dimethylol propionic acid, and isophorone diisocyanate. This polymer may be able to form a film and may release active agents at the skin level. The polymer may be characterized as a cosmetically acceptable sensory polymer because it may have a non-sticky, dragging feel. Other cosmetically acceptable sensory polymers may include Polyderm PE / PA (INCI name: Polyurethane-18) manufactured by ALZO International Inc., C 1000 or C 1001 (INCI name: Polyurethane-34), manufactured by Covestro C 1004 (INCI name: Polyurethane-35), manufactured by Covestro C 1008 or C 1008 / 1 (INCI name: Polyurethane-48), manufactured by Covestro C 2000 (INCI name: Polyurethane-64), manufactured by Phoenix Chemical, Inc. P-0580 (INCI name: Polyurethane-21), Polyol Prepolymer-2 (INCI name: PPG-12 / SMDI Copolymer), Polyol Prepolymer-14 (INCI name: PPG-51 / SMDI Copolymer) and / or Polyol Prepolymer-15 (INCI name: PPG-8 / SMDI Copolymer) from Barnet Products Corporation. Although polyurethane-1 and ethylcellulose are each known to be contributors to fragrance and fragrance longevity individually, embodiments of the present disclosure use them in combination with hydrophilic polymers to increase the level of fragrance longevity.

[0015] In embodiments of the present disclosure, the essential oil in the hydroalcoholic solution may be composed of at least 5%-95% ethanol, 0-25% water and 0.1%-25% essential oil, wherein the cLogP is 0.7-7.0. In embodiments of the present disclosure, the perfume hydroalcoholic homogeneous solution may have an essential oil content of at least 0.5%, thereby incorporating higher amounts of essential oil. Including a polymer combination according to embodiments of the present disclosure and essential oil in a hydroalcoholic solution can provide a homogeneous hydroalcoholic solution in a sprayable thin form. Stabilizers and / or other cosmetically acceptable dyes and combinations may also be included in embodiments of the present disclosure. Stabilizers, whether incorporated alone or in combination, may be included in the range of 0.005%-2.0% of the total composition. (INCI Name: Ethylhexyl Methoxycinnamate (and) Butyl Methoxydibenzoylmethane (and) Ethylhexyl Salicylate), Q (INCI name: Tris(tetramethylhydroxypiperidinol) citrate (and) Aqua (and) alcohol), PARSOL 1789 (INCI name: Butyl Methoxydibenzoylmethane) and / or other common antioxidants. The dye may include one or more of the following: D452 / 4EXT D&C Violet No. 2, D424 / 1FD&C Blue No. 1, S260 / 1FD&C Red #33, d435 / 1FD&C Red No. 4 and / or D436 / 1FD&C Yellow No. 5.

[0016] It should be understood that in embodiments of the present disclosure, the ratio of the three types of polymers in the polymer combination may vary according to the percentage of the polymer in the total composition. In the first embodiment of the present disclosure, when the polymer combination accounts for 0.75% of the total composition, ethyl cellulose may account for 0.45%, poloxamer 407 and PPG-12 / SMDI copolymer may account for 0.29%, and polyurethane-1 may account for 0.01%. In another embodiment of the present disclosure, when the polymer combination accounts for 0.5% of the total composition, ethyl cellulose may account for 0.45%, poloxamer 407 and PPG-12 / SMDI copolymer may account for 0.04%, and polyurethane-1 may account for 0.01%. In another embodiment of the present disclosure, when the polymer combination accounts for 1% of the total composition, ethyl cellulose may account for 0.50%, poloxamer 407 and PPG-12 / SMDI copolymer may account for 0.49%, and polyurethane-1 may account for 0.01%. In another embodiment of the present disclosure, when the polymer combination accounts for 1.46% of the total composition, ethylcellulose may account for 0.95%, poloxamer 407 and PPG-12 / SMDI copolymer may account for 0.50%, and polyurethane-1 may account for 0.01%. It should be understood that the polymer substitutes described above can be incorporated into the polymer combination in similar percentages based on the ratios described herein.

[0017] While embodiments of the present disclosure have been described using 0.1%-25% of essential oils having cLogP values ​​of 0.7-7.0, it will be appreciated that essential oils having different cLogP values ​​and / or compositions and / or total polymer content may have significant effects on compatibility, stability, and skin feel. For example, in an essential oil having a lower cLogP (e.g., 3.13), the polymer combination P=1.46% was observed to precipitate out of solution after 3 days at low temperatures, but no precipitation was observed for an essential oil having a high cLogP (e.g., 3.8). Higher levels of polymers, particularly ethylcellulose, may impair skin feel.

[0018] Headspace gas chromatography / mass spectrometry (GC / MS) was used to analyze and compare fragrance formulations that did and did not include a combination of polymers according to embodiments of the present disclosure. Figure 2 The results of headspace GS / MS peak intensities with and without the polymer combination are plotted, reflecting the overall retention effect of the fragrance components improved by including the polymer combination. Figure 3 Depicted is a headspace GC / MS analysis spectrum of the Mulberry Princess perfume composition from 0 to 10 hours.

[0019] Although the present disclosure and its advantages have been described in detail, it should be understood that various changes, substitutions and modifications may be made herein without departing from the essence and scope of the present disclosure as defined by the appended claims. In addition, the scope of the present application is not intended to be limited to the specific embodiments of the processes, machines, manufactures, material compositions, devices, methods and steps described in the specification. As will be readily understood by those of ordinary skill in the art from the present disclosure, the processes, machines, manufactures, material compositions, devices, methods or steps of performing functions substantially the same as the corresponding embodiments described herein or realizing the results substantially the same as the corresponding embodiments described herein may be utilized according to the present disclosure in the current existence or later developed. Therefore, the appended claims are intended to include such processes, machines, manufactures, material compositions, devices, methods or steps within their scope.

Claims

1. A system for improving the life of a perfume, the system comprising: a polymer combination comprising at least one plant-based hydrophobic polymer present in the range of 0.01%-7.00% of the system, a hydrophilic polymer present in the range of 0.01%-5.00% of the system, and a third cosmetically acceptable sensory polymer present in the range of 0.005%-5% of the system; and An essential oil, the essential oil being in a hydroalcoholic solution, the essential oil having a cLogP of 0.7-7.0, the essential oil being present in the hydroalcoholic solution in an amount of 0.1%-25%, wherein the polymer combination creates a film network on the skin surface that locks in the essential oil to increase the longevity of the fragrance, wherein the at least one plant-based hydrophobic polymer is ethylcellulose, the hydrophilic polymer is poloxamer 407 and PPG-12 / SMDI copolymer, and the third cosmetically acceptable sensory polymer is polyurethane-1.

2. The system of claim 1, wherein the essential oil content is at least 0.5% of the system.

3. The system of claim 1, wherein when the polymer combination accounts for 0.75% of the system, ethylcellulose accounts for 0.45% of the system, poloxamer 407 and PPG-12 / SMDI copolymer account for 0.29% of the system, and polyurethane-1 accounts for 0.01% of the system.

4. The system of claim 1, wherein when the polymer combination comprises 0.5% of the system, ethylcellulose comprises 0.45% of the system, poloxamer 407 and PPG-12 / SMDI copolymer comprise 0.04% of the system, and polyurethane-1 comprises 0.01% of the system.

5. The system of claim 1, wherein when the polymer combination comprises 1% of the system, ethylcellulose comprises 0.50% of the system, poloxamer 407 and PPG-12 / SMDI copolymer comprises 0.49% of the system, and polyurethane-1 comprises 0.01% of the system.

6. The system of claim 1 wherein when the polymer combination comprises 1.46% of the system, ethylcellulose comprises 0.95% of the system, poloxamer 407 and PPG-12 / SMDI copolymer comprise 0.50% of the system, and polyurethane-1 comprises 0.01% of the system.

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