A combination of polymers to improve fragrance longevity.

Abstract

We provide a system that improves the lifespan of fragrances. [Solution] A system is provided for improving fragrance longevity, comprising a polymer combination including at least one plant-derived hydrophobic polymer, a hydrophilic polymer, and a third cosmetically acceptable sensory polymer, and a fragrance oil in an aqueous alcohol solution, wherein the polymer combination creates a film mesh on the surface of the skin that fixes the fragrance oil and improves the longevity of the fragrance.

Description

Technical Field

[0001] The present disclosure generally relates to fragrance longevity, and more specifically to combinations of polymers in an aqueous alcohol solution that improve fragrance longevity.

Background Art

[0002] Many fragrance users complain that the fragrance does not last on the user, and the user may conclude that not enough fragrance was applied. Typically, the more alcohol present in the fragrance, the faster it can lose its scent, so the concentration of the fragrance can also affect the longevity of the fragrance. Generally, users desire a fragrance that has the effect of lasting for a long time over time without the need for additional application when applied to the user's skin.

Summary of the Invention

[0003] Embodiments of the present disclosure provide a system for improving fragrance longevity, comprising a polymer combination comprising at least one plant-derived hydrophobic polymer, a hydrophilic polymer, and a third cosmetically acceptable sensory polymer, and a fragrance oil in an aqueous alcohol solution, wherein the polymer combination creates a film mesh on the surface of the skin that fixes the fragrance oil and improves fragrance longevity. The at least one plant-derived hydrophobic polymer may be ethylcellulose. Ethylcellulose may be present in the system at a concentration of 0.01 to 7.00%. The at least one plant-derived hydrophobic polymer may be selected from the group consisting of ethylcellulose, hydroxyethylcellulose, hydroxypropylmethylcellulose, and / or carboxymethylcellulose (cellulose gum). The hydrophilic polymer may be poloxamer 407 and PPG-12 / SMDI copolymer. Poloxamer 407 and PPG-12 / SMDI copolymer may be present in the system at a concentration of 0.01 to 5.00%. 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. A third cosmetically acceptable sensory polymer may be polyurethane-1. Polyurethane-1 may be present in the system at 0.005% to 5%. 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 fragrance oil in the aqueous alcohol solution may contain 5-95% ethanol, 0-25% water, and 0.1-25% fragrance oil having a cLogP of 0.7-7.0. The level of fragrance oil may be at least 0.5% of the system.

[0004] Other embodiments of the present disclosure may provide a system for improving fragrance longevity, comprising a polymer combination comprising ethylcellulose, poloxamer 407 and PPG-12 / SMDI, and polyurethane-1, and a fragrance oil in an aqueous alcohol solution, wherein the polymer combination creates a film mesh on the surface of the skin that fixes the fragrance oil and improves fragrance longevity. The polymer combination may constitute 0.75% of the system, ethylcellulose may constitute 0.45% of the system, the poloxamer 407 and PPG-12 / SMDI copolymer may constitute 0.29% of the system, and polyurethane-1 may constitute 0.01% of the system. The polymer combination may constitute 0.5% of the system, ethylcellulose may constitute 0.45% of the system, the poloxamer 407 and PPG-12 / SMDI copolymer may constitute 0.04% of the system, and polyurethane-1 may constitute 0.01% of the system. The polymer combination may constitute 1% of the system, ethylcellulose may constitute 0.50% of the system, poloxamer 407 and PPG-12 / SMDI copolymer may constitute 0.49% of the system, and polyurethane-1 may constitute 0.01% of the system. The polymer combination may constitute 1.46% of the system, ethylcellulose may constitute 0.95% of the system, poloxamer 407 and PPG-12 / SMDI copolymer may constitute 0.50% of the system, and polyurethane-1 may constitute 0.01% of the system.

[0005] Further embodiments of the present disclosure may provide a system for improving fragrance longevity, comprising a polymer combination including at least one plant-derived hydrophobic polymer present in the range of 0.01 to 7.00% of the system, a hydrophilic polymer present in the range of 0.01 to 5.00% of the system, and a third cosmetically acceptable sensory polymer present in the range of 0.005 to 5% of the system, and a fragrance oil in an aqueous alcohol solution, wherein the fragrance oil has a cLogP of 0.7 to 7.0, and the polymer combination creates a film mesh on the surface of the skin that fixes the fragrance oil and improves fragrance longevity. The at least one plant-derived 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 level of fragrance oil is at least 0.5% of the system. [Brief explanation of the drawing]

[0006] For a more complete understanding of this disclosure, refer to the following description in conjunction with the attached drawings. [Figure 1A] This disclosure shows glass slides having droplets of samples containing and not containing polymer combinations according to embodiments of this disclosure. [Figure 1B] This disclosure shows glass slides having droplets of samples containing and not containing polymer combinations according to embodiments of this disclosure. [Figure 2] The results for headspace GS / MS peak intensity, both with and without polymer combinations, are shown. [Figure 3] The headspace GC / MS analysis spectrum for 0-10 hours is shown. [Modes for carrying out the invention]

[0007] Embodiments of the present disclosure may provide combinations of polymers in aqueous alcohol solutions that improve fragrance longevity. The polymer combinations may include at least one plant-derived hydrophobic polymer, a hydrophilic polymer, a third cosmetically acceptable sensory polymer, and a fragrance oil in aqueous alcohol solution that provides long-lasting fragrance intensity.

[0008] The polymer combinations according to embodiments of this disclosure can utilize transfer-resistant film-forming agent technology together with food- and medical-grade polymers. The triporemer combinations can synergistically create a film mesh on the skin surface that fixes fragrance components. The polymer combinations can provide unexpected film-forming properties with fragrance oils in aqueous alcohol solutions, thereby providing a thin film matrix and adhesive force for fragrance components to adhere to / remain on the skin. These film-forming properties are reflected in Figures 1A and 1B, which show glass slides with droplets of samples containing and without the polymer combinations.

[0009] In one embodiment of the present disclosure, at least one plant-derived hydrophobic polymer may be Ethocel Standard 45 Premium (INCI name: ethylcellulose), manufactured by DuPont. Ethylcellulose is a plant-derived polymer used in cosmetic compositions as a film-forming agent (i.e., to promote film formation on the skin and improve the water resistance of the film) and may be present in an amount of 0.01 to 7.00% of the total composition. Other plant-derived hydrophobic polymers that can be used in addition to or instead of ethylcellulose include Celopre® H30000 manufactured by Celotech Chemical Co., Ltd., Natrosol® 250 HHR hydroxyethylcellulose PC grade manufactured by Ashland, hydroxyethylcellulose 100 CP,NF (HY112) manufactured by Spectrum Chemical Mfg. Corp., HEC CF-G or HEC CF-V manufactured by Sumitomo Seika Co., Ltd., and / or Vida-Care HEC manufactured by Univar Solutions (each of which has the INCI name: hydroxyethylcellulose). Additional plant-derived hydrophobic polymers may include Celopre® ME30M manufactured by Celotech Chemical Co., Ltd., Benecel® E4M polymer manufactured by Ashland, and / or PrimaFlo® MP3295A polymer manufactured by Ashland (each of which has the INCI name: hydroxypropylmethylcellulose).Other plant-derived hydrophobic polymers include GELYCEL® manufactured by Quimica Amtex y Amtex Chemicals, LLC, carboxymethylcellulose sodium, low viscosity (CA193), and / or carboxymethylcellulose sodium, medium viscosity (CA192), manufactured by Spectrum Chemical Mfg. Corp. (each of which has the INCI name: carboxymethylcellulose (cellulose gum)).

[0010] The hydrophilic polymer used in the polymer combination according to the embodiments of this disclosure may be ExpertGel® EG412 (INCI name: Poloxamer 407 and PPG-12 / SMDI copolymer), manufactured by DKSH North America, Inc., which is a film-forming agent for improving texture in cosmetics. This polymer may be thermosetting based on skin temperature and may be present in an amount of 0.01 to 5.00% of the total composition. Other hydrophilic polymers include ExpertGel® EG 312 (INCI name: poloxamer 338 and PPG-12 / SMDI copolymer) manufactured by DKSH North America Inc., Avalure® UR 450 polymer (INCI name: PPG-17 / IPDI / DMPA copolymer) manufactured by Lubrizol, Pluracare® F 127 NF Prill FLEX or Pluracare® F 127 NF Prill manufactured by BASF Care Creations or ANTAROX® F 127 NF manufactured by Solvay Novecare (each of which has the INCI name: poloxamer 407), Pluracare® F 108 NF Prill (INCI name: poloxamer 338) and / or Pluracare® L 64 (INCI name: poloxamer 184) manufactured by BASF Care Creations.

[0011] A third cosmetically acceptable sensory polymer used in the polymer combinations according to embodiments of this disclosure may be LUVISET® PUR (INCI name: Polyurethane-1), manufactured by BASF, in an amount ranging from 0.005% to 5% of the total composition. Polyurethane-1 is a copolymer of isophthalic acid monomer, adipic acid, hexylene glycol, neopentyl glycol, dimethylolpropanoic acid, and isophorone diisocyanate. This polymer may form a film and release activators at the skin level. The polymer may have a non-sticky, unpleasant feel and may therefore be characterized as a cosmetically acceptable sensory polymer. Other cosmetically acceptable sensory polymers include Polyderm PE / PA (INCI: Polyurethane-18) manufactured by ALZO International Inc., Baycusan® C 1000 or Baycusan® C 1001 (INCI: Polyurethane-34) manufactured by Covestro, Baycusan® C 1004 (INCI: Polyurethane-35) manufactured by Covestro, Baycusan® C 1008 or Baycusan® C 1008 / 1 (INCI: Polyurethane-48) manufactured by Covestro, Baycusan® C 2000 (INCI: Polyurethane-64) manufactured by Covestro, GIOVAREZ® P-0580 (INCI: Polyurethane-21) manufactured by Phoenix Chemical, Inc., and Barnet Products. Examples include 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 the Corporation.While polyurethane-1 and ethylcellulose may be individually known to be contributing factors in fragrances and to fragrance longevity, embodiments of the present disclosure utilize them in combination with hydrophilic polymers to result in an increased level of fragrance longevity.

[0012] The fragrance oil in the aqueous alcohol solution in embodiments of this disclosure may consist of at least 5-95% ethanol, 0-25% water, and 0.1-25% fragrance oil having a cLogP of 0.7-7.0. In one embodiment of this disclosure, the fragrance aqueous alcohol homogeneous solution may have a fragrance oil level of at least 0.5%, thereby incorporating a larger amount of fragrance oil. By including the polymer combinations according to embodiments of this disclosure in the fragrance oil in the aqueous alcohol solution, a sprayable, thin, homogeneous aqueous alcohol solution can be provided. Stabilizers and / or other cosmetically acceptable pigments and combinations may also be included in embodiments of this disclosure. The stabilizers, whether incorporated individually or in combination, may include COVABSORB® (INCI name: ethylhexyl methoxy cinnamate (and) butyl methoxydibenzoylmethane (and) ethylhexyl salicylate), TINOGARD® Q (INCI name: tris(tetramethylhydroxypiperidinol) citrate (and) aqua (and) alcohol), PARSOL 1789 (INCI name: butyl methoxydibenzoylmethane), and / or other commonly used antioxidants, in amounts ranging from 0.005% to 2.0% of the total composition. The pigment may include one or more of the following: D452 / 4 EXT D&C VIOLET NO.2, D424 / 1 FD&C BLUE NO.1, S260 / 1 FD&C RED #33, d435 / 1 FD&C RED NO.4, and / or D436 / 1 FD&C YELLOW NO.5.

[0013] It should be understood that the ratio of the three types of polymers in a polymer combination may vary in the embodiments of this disclosure depending on the percentage of the total composition in which the polymers constitute. In the first embodiment of this disclosure, when the polymer combination constitutes 0.75% of the total composition, ethylcellulose may constitute 0.45%, poloxamer 407 and PPG-12 / SMDI copolymer may constitute 0.29%, and polyurethane-1 may constitute 0.01%. In another embodiment of this disclosure, when the polymer combination constitutes 0.5% of the total composition, ethylcellulose may constitute 0.45%, poloxamer 407 and PPG-12 / SMDI copolymer may constitute 0.04%, and polyurethane-1 may constitute 0.01%. In further embodiments of this disclosure, when the polymer combination constitutes 1% of the total composition, ethylcellulose may constitute 0.50%, poloxamer 407 and PPG-12 / SMDI copolymer may constitute 0.49%, and polyurethane-1 may constitute 0.01%. In additional embodiments of this disclosure, when the polymer combination constitutes 1.46% of the total composition, ethylcellulose may constitute 0.95%, poloxamer 407 and PPG-12 / SMDI copolymer may constitute 0.50%, and polyurethane-1 may constitute 0.01%. It should be understood that the polymer substitutes described above may be incorporated into the polymer combination in similar percentages based on the ratios described herein.

[0014] While embodiments of this disclosure are described using 0.1–25% fragrance oils having a cLogP of 0.7–7.0, it should be understood that fragrance oils with different cLogP values, and / or compositions and / or total polymer levels, may have a dramatic effect on compatibility, stability, and skin feel. For example, a polymer combination P=1.46% was observed to precipitate from the solution at low temperature after 3 days in fragrance oils with lower cLogP (e.g., 3.13), but no precipitation was observed for fragrance oils with higher cLogP (e.g., 3.8). Higher levels of polymers, particularly ethylcellulose, may impair skin feel.

[0015] Headspace gas chromatography-mass spectrometry (GC / MS) was used to analyze and compare fragrance formulations with and without the polymer combination according to embodiments of the present disclosure. Figure 2 shows the results of headspace GS / MS peak intensities for both with and without the polymer combination, reflecting that the inclusion of the polymer combination improved the overall retention effect for the fragrance components. Figure 3 shows the headspace GC / MS analysis spectra for the Mulberry Princess fragrance composition from 0 to 10 hours.

[0016] While the present disclosure and its merits have been described in detail, it should be understood that various changes, substitutions, and modifications can be made herein without departing from the spirit and scope of the disclosure as defined by the appended claims. Furthermore, the scope of this application is not intended to be limited to specific embodiments of the processes, machines, manufactures, compositions, means, methods, and steps described herein. Existing or subsequently developed processes, machines, manufactures, compositions, means, methods, or steps that perform substantially the same function or achieve substantially the same results as the corresponding embodiments described herein can be utilized in accordance with this disclosure, as will be readily apparent to those skilled in the art. Accordingly, the appended claims are intended to include such processes, machines, manufactures, compositions, means, methods, or steps within their scope.

Claims

1. It is a system that improves the lifespan of fragrances. A combination of polymers comprising at least one plant-derived hydrophobic polymer, a hydrophilic polymer, and a third cosmetically acceptable sensory polymer, A fragrance oil in an aqueous alcohol solution, The aforementioned combination of polymers creates a film mesh on the surface of the skin that fixes the fragrance oil and improves the fragrance's lifespan.

2. The system according to claim 1, wherein the at least one plant-derived hydrophobic polymer is ethylcellulose.

3. The system according to claim 2, wherein ethylcellulose is present in the system as 0.01 to 7.00%.

4. The at least one plant-derived hydrophobic polymer is The system according to claim 1, selected from the group consisting of ethylcellulose, hydroxyethylcellulose, hydroxypropylmethylcellulose, and / or carboxymethylcellulose (cellulose gum).

5. The system according to claim 1, wherein the hydrophilic polymer is poloxamer 407 and PPG-12 / SMDI copolymer.

6. The system according to claim 5, wherein poloxamer 407 and PPG-12 / SMDI copolymer are present in the system as 0.01 to 5.00%.

7. The aforementioned hydrophilic polymer The system according to claim 1, 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, poloxamer 184, and mixtures thereof.

8. The system according to claim 1, wherein the third cosmetically acceptable sensory polymer is polyurethane-1.

9. The system according to claim 8, wherein polyurethane-1 is present in the system as 0.005% to 5%.

10. The third cosmetically acceptable sensory polymer is The system according to claim 1, 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.

11. The fragrance oil in the aqueous alcohol solution is The system according to claim 1, comprising 5-95% ethanol, 0-25% water, and 0.1-25% fragrance oil having 0.7-7.0 cLogP.

12. The system according to claim 1, wherein the level of the fragrance oil is at least 0.5% of the system.

13. It is a system that improves the lifespan of fragrances. A combination of polymers comprising ethylcellulose, poloxamer 407 and PPG-12 / SMDI, and polyurethane-1, A fragrance oil in an aqueous alcohol solution, The aforementioned combination of polymers creates a film mesh on the surface of the skin that fixes the fragrance oil and improves the fragrance's lifespan.

14. The system according to claim 13, wherein, when the combination of polymers constitutes 0.75% of the system, ethylcellulose constitutes 0.45% of the system, poloxamer 407 and PPG-12 / SMDI copolymer constitute 0.29% of the system, and polyurethane-1 constitutes 0.01% of the system.

15. The system according to claim 13, wherein, when the combination of polymers constitutes 0.5% of the system, ethylcellulose constitutes 0.45% of the system, poloxamer 407 and PPG-12 / SMDI copolymer constitutes 0.04% of the system, and polyurethane-1 constitutes 0.01% of the system.

16. The system according to claim 13, wherein, when the combination of polymers constitutes 1% of the system, ethylcellulose constitutes 0.50% of the system, poloxamer 407 and PPG-12 / SMDI copolymer constitute 0.49% of the system, and polyurethane-1 constitutes 0.01% of the system.

17. The system according to claim 13, wherein, when the combination of polymers constitutes 1.46% of the system, ethylcellulose constitutes 0.95% of the system, poloxamer 407 and PPG-12 / SMDI copolymer constitute 0.50% of the system, and polyurethane-1 constitutes 0.01% of the system.

18. It is a system that improves the lifespan of fragrances. A combination of polymers comprising at least one plant-derived hydrophobic polymer present in the range of 0.01 to 7.00% of the system, a hydrophilic polymer present in the range of 0.01 to 5.00% of the system, and a third cosmetically acceptable sensory polymer present in the range of 0.005 to 5% of the system, A fragrance oil in an aqueous alcohol solution having a cLogP of 0.7 to 7.0, The aforementioned combination of polymers creates a film mesh on the surface of the skin that fixes the fragrance oil and improves the fragrance's lifespan.

19. The system according to claim 18, wherein the at least one plant-derived 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.

20. The system according to claim 18, wherein the level of the fragrance oil is at least 0.5% of the system.

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