Techniques for Long-Lasting Fragrances in Perfumes

Fragrance compositions with improved perfume encapsulation and release for fragrance dispenser systems. The compositions contain a polymeric substrate made by reacting an acrylate monomer with a crosslinker having multiple arms. The perfume is encapsulated within the polymer. The polymer absorbs and retains the perfume molecules due to its porous structure. The polymer also provides slower perfume release compared to conventional polymers like EVA. The compositions have high perfume loadings and can carry a wide range of perfume molecules.

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A fragrance air freshener that enhances fragrance strength and durability through a novel volatilization mechanism. The air freshener comprises a fragrance composition containing fragrance, water, and a water-soluble solvent, along with a volatilization member comprising a resin material. The volatilization member is at least partially immersed in the fragrance composition, where the water-soluble solvent is comprised of specific aromatic compounds. The volatilization member, when partially bonded to the fragrance composition, enables controlled release of the fragrance while maintaining its strength and stability.

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Fragrance compositions that enhance stability through a synergistic stabilizing mixture comprising multiple functional ingredients. The compositions contain less than 1 wt % water, with each functional component having distinct properties such as antioxidant, metal chelator, pH regulator, and POV remediant. This composition provides superior stability against oxidation, pH changes, chemical degradation, skin irritation, and sedimentation compared to conventional stabilizers.

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Fragrance compositions that are free of ethanol but can elicit desirable olfactive performance, provide desirable solubility of fragrance components and/or be aesthetically pleasing, i.e, transparent. The compositions contain 2,3-butanediol and/or 1,3-butanediol instead of ethanol as a solvent for fragrance components. This allows creating fragrance compositions that are free of ethanol while maintaining olfactive impact, solubility, and transparency. The compositions can be used in personal care products like perfumes, colognes, and body sprays.

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Fragrance compositions with reduced volatile organic compounds (VOCs) that provide good olfactive impact and solubility for consumer products like perfumes. The compositions contain 1,3-butanediol, fragrance components, and a volatile solvent with low vapor pressure. The 1,3-butanediol enhances impact and longevity while replacing higher VOC solvents. The fragrance components have high vapor pressure to balance the reduced solvent.

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Fragrance compositions with long-lasting trail performance. The compositions contain specific low-volatility perfumery ingredients that provide high trail projection. The ingredients have volatilities below 100 pg/L, with some as low as 0.001 pg/L. They include compounds like 5-ethyl-3-hydroxy-4-methyl-2(5H)-furanone and 2-[4-(2-hydroxy-2-methylpropyl)phenyl]propanal. Using these low-volatility ingredients in fragrance compositions enhances the trail projection of the fragrance when worn.

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Fragrance delivery composition with enhanced fragrance persistence for personal care and home care products. The composition contains a fragrance fixative, co-fixatives, and fragrance components. The fixative improves fragrance retention by reducing volatility. The co-fixatives further enhance fragrance fixation. The composition replaces some fragrance components with the fixative and co-fixatives to achieve sustained fragrance release over an extended period.

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Preparation method for an emotionally comforting air fragrance that has improved stability and longevity compared to conventional fragrances. The fragrance is prepared by combining specific essential oils, chemicals, and carrier oil in a specific ratio, stirring, and high-pressure homogenization. The key ingredients are mandarin oil, cyclohexadecenone, and ambroxone for a base fragrance. Other components like citral, white lemon oil, ethyl ionone, musk T, methyl dihydrojasmonate, soothing composition, ethyl linalool, and phytol are added. The mixture is stirred and then homogenized under pressure to disperse the ingredients evenly and stabilize the fragrance.

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Encapsulated fragrance compositions comprising a fragrance composition embedded in a water-soluble matrix, comprising at least 8 biodegradable ingredients, with a total concentration of 95 wt.-%, where the biodegradable component is present in at least 75 wt.-%.

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Enhancing fragrance composition longevity and intensity by selectively modulating the volatility of fragrance components. The method involves using a modulating agent to delay the time when consumers can detect and become aware of the presence of highly volatile fragrance components. This allows those components to persist longer and contribute more to the overall fragrance profile. The modulating agent works by suppressing the vapor pressure of the highly volatile components, making them less available for selection. This avoids reducing the initial fragrance perception. The agent's effect depends on the vapor pressure of the component in its presence.

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Fragrance compositions and methods that enhance fragrance longevity and fidelity through the strategic use of fragrance modulators. The compositions contain a fragrance component and at least one modulator, where the modulator is a fragrance component with specific volatility characteristics. The modulator enhances the performance of the fragrance component by modulating its volatility, thereby improving the fragrance's stability and longevity. The modulator can be a synthetic or natural fragrance component, and the fragrance component can be a natural oil or extract. The modulator can be used in concentrations ranging from 0.1% to 30% of the fragrance composition.

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Composition and method for providing long-lasting fragrance performance in consumer products. The composition comprises a fragrance oil, an amphiphilic oil-soluble compound, a volatile solvent, water, and a low molecular weight gelator. The amphiphilic oil-soluble compound enhances fragrance performance while maintaining skin feel, particularly in volatile solvent-containing products. The composition achieves long-lasting fragrance retention through a combination of the amphiphilic oil-soluble compound, volatile solvent, and gelator.

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Long-lasting fragrances, especially floral and fruity scents, that can be used in perfumes, cleaning products, and other applications. The fragrances contain specific compounds that impart long-lasting odors when applied to surfaces. The compounds have a unique formula with a sulfur-containing group connecting two carbon-based moieties. They can be used to provide long-lasting floral, fruity, and green scent notes in perfuming compositions and articles. The compounds are non-volatile and form when exposed to surfaces. They are believed to be formed by reactions with humidity, light, and enzymes.

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A synthetic ester compound with a long-lasting bergamot fragrance, achieved through a hydroboration-oxidation method. The ester compound, identified as 2,6-dimethyl-7-octene-2-butyrate, exhibits a rich, intense bergamot aroma with a prolonged fragrance retention time of 54 hours. This compound can be used as a base note in fragrance formulations, particularly suitable for body and personal care products.

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A fragrance composition comprising purified water base that provides superior performance in diffusion-based fragrance delivery systems. The composition combines a purified water base with surfactant and perfume components, achieving high fragrance persistence and low flammability while maintaining excellent scent diffusing properties.

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Composition with improved long-term fragrance persistence and profile. The composition contains a fragrance component with a specific balance of highly volatile and medium volatile perfume ingredients. It also has a regulator to enhance dissolution of the fragrance ingredients. The highly volatile perfume component has vapor pressure above 0.08 Torr at 22°C and the medium volatile component has vapor pressure between 0.0008-0.08 Torr at 22°C. The regulator has low solubility parameters to dissolve the fragrance ingredients. The composition has 30-75% ethanol and 0.04-40% fragrance component.

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Perfuming composition containing at least two properfume compounds that release perfume compounds when exposed to external stimuli like light, air, heat, moisture, or enzymes. This improves and prolongs the fragrance of consumer products like perfumes, cosmetics, and cleaning agents. The composition can have properfumes that release perfumes upon exposure to light, air/oxygen, heat, moisture, and/or enzymes. Using structurally different types of properfumes that release perfumes through different mechanisms allows long-lasting fragrance effects.

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A fragrance composition that maintains fragrance release over extended periods without the need for frequent application. The composition comprises a fractionated coconut oil base enriched with caprylic acid and capric acid, combined with a fragrance comprising a volatile organic compound. The coconut oil fractionation process selectively enriches the fatty acid component, while the fragrance formulation incorporates caprylic acid and capric acid to create a slow-release delivery system. This composition maintains fragrance intensity over 48 hours, providing a sustained release without the need for frequent application.

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A fragrance composition and cosmetic composition with improved fragrance durability. The fragrance composition contains specific ingredients like Clearwood, Dartanol, Helvetolide, Muscenone Delta, Galaxolide, and Polysantol to enhance fragrance persistence. This composition can be used in cosmetics like shampoo to improve fragrance longevity without affecting freshness. The cosmetic composition contains a fragrance with improved durability. The fragrance composition is added to the cosmetic at 1-10% by weight.

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A pro-fragrance compound for laundry products, home care products, and insect repellents that enhances fragrance longevity and stability. The compound is a ketone or aldehyde derivative bound to an ester-containing anchor, and it exhibits improved resistance to degradation, polymerization, and structural changes over time compared to conventional fragrance compounds. The compound can be used in laundry products to achieve fragrance duration of up to 120 hours, and it can be applied in home care products and insect repellents to provide enhanced fragrance stability.

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Long-lasting fragrance composition that provides rich, pleasant aroma that lasts longer on the skin and hair compared to regular fragrances. The formula contains specific ingredients like phenylethanol, geraniol, rose ether, xinyang jasminaldehyde, methylhexylcinnamaldehyde, ethyl acetate, folate salicylate, n-pentyl salicylate, benzyl acetate, methyl dihydrojasmonate, linalyl acetate, ethyl 2,4-decadienoate, lemon oil, bergamot oil, limonene, linalool, rose acid, new jasmonal, hexyl cinnamaldehyde, lilyal, salicylic acid amyl ester, salicylic acid benzyl ester, phenylethyl phen

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Oil-in-water composition with enhanced fragrance persistence and skin benefits, comprising a fragrance component with a LogP value of 4 or less and a polar oil component with a molecular weight between 30 and 70. The composition has an oil phase ratio of 15 to 50% by mass and contains a fragrance component with a LogP value of 4 or less, which maintains its fragrance properties when incorporated into the oil phase.

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Norbomene ester derivatives exhibiting olfactory properties suitable as fragrance ingredients in perfumes, colognes, and other personal care products. The esters contain functionalized norbomene structures that provide unique olfactory profiles while maintaining environmental sustainability. The esters can be synthesized through a variety of methods, including direct synthesis from precursor compounds, and are characterized by their enantiomeric purity and stereoisomeric composition.

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Norbomene derivatives exhibiting olfactory properties for fragrance applications. The compounds are functionalized norbomene derivatives that can be used as fragrance ingredients in various perfumes, cleaning products, and household items. The derivatives provide olfactory enhancement, modification, and augmentation of fragrance properties, making them suitable for a wide range of applications.

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A fragrance composition and solid incense that exhibit exceptional long-lasting fragrance properties. The composition contains a specific blend of fragrance molecules, including Cai and its derivatives, which are combined with a carrier base. The fragrance is stabilized through a proprietary process that incorporates a controlled amount of a specific magnesium silicate component. The resulting fragrance maintains its potency for an extended period, providing a long-lasting and stable fragrance source.

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Fragrance composition in the form of monodisperse droplets suspended in water that does not contain polar solvents or surfactants. The composition has a high percentage (>60wt%) of fragrance ingredients, with low levels (<25wt%) of alcohols, <10wt% aldehydes, and <10wt% compounds with ClogP <2.1. The composition avoids solvents and surfactants for fragrance applications like perfumes, colognes, and body sprays.

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Long-acting sustained-release perfume that lasts longer than conventional perfumes without affecting fragrance quality. The perfume contains bergamot, geranium, and patchouli essential oils. The key innovation is using sodium alginate and glycerol to encapsulate the essential oils in a slow-release form. This involves dissolving sodium alginate in glycerol, then adding the essential oils and stirring. The mixture is extruded at high pressure to form encapsulated droplets that slowly release fragrance over several hours.

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Fragrance compositions and products that utilize glycosides as a fixative in perfumes and other fragranced products, offering enhanced longevity and stability without compromising fragrance character. The compositions incorporate glycosides derived from natural sources, such as steviol glycosides, as a potent fixative that maintains fragrance intensity over time. This approach preserves the natural fragrance characteristics while achieving improved longevity compared to traditional fixatives.

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Compositions for fragrances, cosmetics, cleaning products, and air fresheners that have improved fragrance character over time without masking or altering the initial fragrance. The compositions contain reduced levels of low volatility fragrance materials along with volatile fragrance materials. Odorless modulators are added to enhance the volatile fragrance component. This allows the body notes to maintain their character for longer without being overwhelmed by base notes. The compositions can have as little as 0.1% low volatility fragrance by weight compared to traditional fragrances with up to 30%. The reduced base notes and added modulators improve the longevity and intensity of the fragrance profile.

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Perfume compositions with improved longevity and enhanced perceived intensity by using contrasting perfume accords. The compositions contain two or more accords, where the first accord has dominating notes and the second accord has contrasting notes. Sequentially exposing a subject to the accords improves perceived intensity compared to the individual accords. The contrasting accords also prolong perceived intensity over time. Encapsulating the accords can further enhance the effects.

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A long-lasting perfume formulation with a unique December fragrance that combines the essence of the month with a fixative. The formulation involves a specific ratio of phenoxyisobutyrate and phenoxyethanol, which are combined to create a fixative. The essence is then diluted with ethanol and mixed with the fixative, resulting in a concentrated eau de toilette that is aged for a period of time before being diluted to the final perfume strength.

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Solid perfume composition with high perfume loading and prolonged fragrance release compared to traditional solid perfumes. The composition has a unique structure with nanopores in porous particles, micropores in a gel matrix, and macropores from superabsorbent polymer. The fragrance is contained in the nanopores. This allows a loading rate of 0.001-20% superabsorbent polymer compared to 0.01-0.1% in conventional solids. The superabsorbent polymer expands in pores, increasing fragrance retention and prolonging release. The composition also suppresses powder flying during processing. The method involves mixing porous particles, gel matrix, and superabsorbent polymer, molding, curing, drying, and fragrance injection.

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Liquid fragrance composition with long-term uniform dissipation characteristics for aromatherapy products like air fresheners and diffusers. The composition contains specific proportions of silicone oil, hydrocarbon oil, volatilization-promoting solvent, and fragrance oil. This mixture provides a fragrance that volatilizes consistently over time with no initial burst or fading. The composition is useful for liquid aromatherapy products where refills are desired, as it allows constant fragrance strength without residue.

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A fragrance liquid that maintains a stable volatilization rate throughout its use period. The liquid contains a fragrance component with low vapor pressure (less than 0.001 kPa at 25 °C) and a solvent component with a vapor pressure of 0.20 kPa or more at 20 °C. The liquid maintains an appropriate volatilization rate and maintains this level throughout the fragrance's use period, with the solvent component controlling the overall vapor pressure.

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Solid perfume composition with high fragrance loading, stability, and longevity, and a method to prepare it. The composition has porous particles with pores filled with fragrance, held together by a gel matrix. The matrix prevents powder flying and provides structure. The fragrance loading ratio can be 100-500% by weight. The matrix can be agar, carrageenan, gellan gum, or gelatin. The method involves dispersing the porous particles, mixing with the matrix, molding, and perfuming.

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Non-odorant fragrance fixatives that extend fragrance longevity in perfumes and cosmetic products by maintaining fragrance intensity over time. These fixatives, comprising a blend of non-odorant polymers and low volatile fragrance materials, prevent fragrance degradation through controlled release mechanisms that maintain the initial fragrance character and intensity. The fixatives can be used in concentrations ranging from 0.1-20% relative to the fragrance component, and can be incorporated into formulations as entrapment materials or incorporated into the fragrance matrix.

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Top-heavy fragrance compositions with improved fidelity and longevity. The compositions have a high percentage of volatile fragrance materials, like citrus oils, with lower percentages of moderate and low volatile fragrance materials. To further enhance fidelity and longevity, small amounts of substantially non-odorous fragrance modulators are added. The modulators are compounds like sugars, glycols, and esters that do not impart their own odor.

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A fragrance composition that enhances citrus fragrance while maintaining its characteristic persistence. The composition comprises a citrus fragrance component (4.2-21% of the total weight) and a non-citrus fragrance component (5.8-29% of the total weight), with the citrus component comprising a blend of Claritone, Hydrocitronitrile, and Mandaril. The non-citrus component can be a floral or woody fragrance, with specific ratios of muguet alcohol, Brahmanol, Madranol, Palisandin, and Vetikon. This blend provides a citrus fragrance that maintains its freshness while maintaining its characteristic longevity, making it suitable for both fragrance applications and diffusion.

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Perfume material that releases fragrance for a long time when heated, and can change the scent by adjusting the temperature. The perfume is made by impregnating a base material with a liquid fragrance, then coating it with a material like polysaccharide. This prevents volatile fragrance components from evaporating too quickly. By bringing the perfume to different temperatures, it releases scents from the impregnated liquid and base material at different rates, allowing fragrance customization.

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A perfume with extended fragrance longevity and low alcohol content. The perfume comprises 60-70 parts ethanol, 20-30 parts ethyl acetate, 20-30 parts Sauan Ye oil, 20-30 parts epoxy resin, 12-16 parts flavor, 18-20 parts glycerin, and 10-20 parts.

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A perfume with extended fragrance longevity and low alcohol content that maintains its scent over hours. The formula combines ethanol, propylene glycol, salicylates, and glycerin in a specific ratio to achieve a balance of performance and safety. The salicylates enhance the fragrance's stability, while glycerin helps maintain the scent's intensity. This composition provides a long-lasting fragrance experience without the typical alcohol-based solvents found in many perfumes.

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A long-lasting perfume with low alcohol content that maintains fragrance intensity over extended periods. The formula combines ethanol, isopropanol, citric acid, hyaluronic acid, glycerin, and flavoring agents to create a balanced blend with a prolonged duration of fragrance release. The precise ratio of these components ensures both low alcohol content and extended longevity, making it suitable for everyday wear.

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A residual fragrance improver containing rotundone and 4- (4-methyl-3-pentenyl) -2 (5H) -furanone as active ingredients. The improver significantly enhances the residual fragrance of fragrance compositions, foods, drinks, and cosmetics. By blending these compounds in fragrance formulations or consumer products, the fragrance persistence is improved compared to using the compounds individually. The improver can be added at concentrations of 0.1 ppt to 1000 ppm for fragrances or 0.001 ppt to 10 ppm for consumer goods.

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A liquid perfume composition and spray for textile products that maintains stability and longevity through a unique blend of natural fragrance molecules and surfactants. The composition comprises a natural fragrance component, a surfactant, and water, with the fragrance component having a specific molecular structure that enhances storage stability and scent persistence. The surfactant component, particularly a nonionic surfactant, enables the fragrance component to maintain its molecular structure even after long-term storage. The composition is formulated to maintain its fragrance intensity and longevity, making it suitable for textile products where natural fragrances are preferred.

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Fragrance ingredients, concentrates and perfumes created using medium-chain hydrocarbons or their ethers as extraction and carrier solvents instead of alcohol or water. The medium-chain hydrocarbons are selectively extractive for aroma compounds from natural matrices like plant extracts, leaving behind non-fragrant compounds. This allows concentrated, fragrant solutions that can be used directly in perfumes and cosmetics without further dilution. The medium-chain hydrocarbons are of natural origin and have lower flammability and better safety properties compared to traditional extraction solvents like hexane.

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Octahydro-indenes with unique structural features that enable the creation of novel fragrance molecules with distinct olfactory profiles. The compounds possess specific structural characteristics that contribute to their sensory properties, including unique ring systems, branching patterns, and functional groups. These novel compounds offer a new dimension in fragrance development by introducing novel olfactory characteristics that can be exploited in perfumery and fragrance formulation.

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2,4,7-Trimethyloct-6-en-1-ol, a fragrance ingredient with high freshness, is a key component in perfumes and fragrances. This compound exhibits unique freshness characteristics that are particularly appealing to consumers seeking immediate sensory responses. The ingredient's diastereomerically and enantiomerically pure forms, as well as its diastereomerically and enantiomerically pure or mixed diastereomer and enantiomer combinations, contribute to its freshness properties. The ingredient can be used in fragrance formulations and scented products to enhance their freshness characteristics.

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Prolonging the release of certain volatile fragrances in personal care compositions like lotions and sprays to improve their aesthetics by extending the aroma effect. The trick is adding a specific tricyclodecanecarboxamide compound that inhibits evaporation of selected fragrances without affecting others. This allows the fragrances to linger longer after application. The compound also has benefits like reducing sebum production and UV protection.

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A fragrance composition with enhanced fragrance and fragrance persistence, particularly suitable for blending applications. The composition comprises a fragrance compound with a diene backbone, specifically a 1,3-butadiene derivative, combined with a diene isomer with a 1,4-pentadiene backbone. The diene isomer, which can be a 1,3-pentadiene or 1,4-pentadiene, is synthesized through a Diels-Alder reaction with dicyclopentadiene. The resulting fragrance composition exhibits superior fragrance and fragrance stability when blended with the diene isomer, making it an ideal raw material for fragrance formulations.

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Fragrance compositions with improved durability of aroma characteristics by using low volatile fragrance materials and odorless conditioners. The compositions have a fragrance component containing low volatile fragrance materials with vapor pressures less than 0.001 Torr at 25°C. The low volatility fragrance materials are present in an amount of 10-3% by weight relative to the total fragrance component weight. The compositions also have an odorless conditioner present in an amount of 20-30% by weight relative to the total composition weight. This balance of low volatile fragrance materials and conditioners provides improved aroma fidelity and durability compared to traditional fragrance compositions with higher amounts of low volatile fragrance materials.

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