Encapsulation Technologies for Long-Lasting Fragrances

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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Long-lasting fragrance in laundry using water-soluble sachets containing both an immediate fragrance and a long-lasting fragrance. The sachets have separate compartments for liquid and solid fragrance compositions that dissolve in washing water. The liquid fragrance provides an immediate scent, while the solid fragrance releases gradually to provide lasting fragrance. The solid fragrance can be microcapsules dispersed in a biodegradable material like starch.

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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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