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WO2019170249A1 - Floating active ingredient systems - Google Patents

Floating active ingredient systems Download PDF

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Publication number
WO2019170249A1
WO2019170249A1 PCT/EP2018/055895 EP2018055895W WO2019170249A1 WO 2019170249 A1 WO2019170249 A1 WO 2019170249A1 EP 2018055895 W EP2018055895 W EP 2018055895W WO 2019170249 A1 WO2019170249 A1 WO 2019170249A1
Authority
WO
WIPO (PCT)
Prior art keywords
composition
oil
particle
particles
methyl
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2018/055895
Other languages
French (fr)
Inventor
Ranjita SHEGOKAR
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Symrise AG
Original Assignee
Symrise AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Symrise AG filed Critical Symrise AG
Priority to PCT/EP2018/055895 priority Critical patent/WO2019170249A1/en
Publication of WO2019170249A1 publication Critical patent/WO2019170249A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2079—Monocarboxylic acids-salts thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/01—Deodorant compositions
    • A61L9/013—Deodorant compositions containing animal or plant extracts, or vegetable material
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0039—Coated compositions or coated components in the compositions, (micro)capsules
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/02—Floating bodies of detergents or of soaps
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
    • C11D17/041—Compositions releasably affixed on a substrate or incorporated into a dispensing means
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2003—Alcohols; Phenols
    • C11D3/2065—Polyhydric alcohols
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/50—Perfumes

Definitions

  • the present invention primarily relates to a composition as described herein, wherein the composition has a density lower than the density of water.
  • the present invention further relates to particles comprising or consisting of a composition as described herein, carriers coated with a composition as described herein, methods for producing said composition or particles or coated carriers, liquid products comprising said particles and the use of said particles or coated carriers.
  • liquid home care, personal care, laundry care, food or beverage products contain capsules or particles that carry active substances such as fragrances, flavours, cleaning- active substances, anti-malodour substances or enzymes, to enable or enhance their desired performance.
  • active substances such as fragrances, flavours, cleaning- active substances, anti-malodour substances or enzymes
  • the manufacturers often have to adapt the composition of the detergent or softener many times in order to achieve satisfactory results.
  • the stabilization of the capsules or particles in the liquid base is usually challenging and often requires, for example, the adaptation of the density of the fragrance oil used, the optimization of the capsule shell thickness or of the polymers used inside the capsules or particles, the exclusion of traces of impurities in the oil or polymer or the adaptation of the formulation of the liquid base (viscosity etc.) without deteriorating the performance of the final product.
  • Another disadvantage is that it is usually not possible to provide two or more chemically non-compatible active ingredients such as, for example, fragrance oils with said liquid products comprising capsules or particles according to the state of the art.
  • the object of the present invention was to provide novel compositions that are easy to produce and thus overcome the problems and limitations described above.
  • a composition comprising or consisting of a) one, two, three or more surfactant(s), preferably selected from the group consisting of anionic, cationic and amphoteric surfactants (individually or in combination), b) one, two or more fatty acid(s) (individually or in combination), c) one or more active substance(s), preferably selected from the group consisting of fragrances, flavours, cleaning-active substances, cosmetic-active substances, functional agents, anti-malodour substances, enzymes, pheromones and probiotics, d) optionally glycerin and/or one or more other soap base(s) (individually or in combination), e) optionally one or more additive(s), preferably selected from the group consisting of thickeners, binders, absorbers, dyes, colour, buffering
  • surfactant(s) preferably selected from the group consisting of anionic, cationic and amphoteric surfactants (individually or in combination)
  • one, two or three surfactant(s) is/are selected from the group consisting of sodium lauryl sulfate, cocamidopropyl betaine and sodium cocolisethionate, and/or one or two fatty acid(s) is/are selected from the group consisting of stearic acid and lauric acid, and/or if present, the other soap base(s) is/are selected from the group consisting of Shea butter base, African soap base, potassium soap base, RSPO (Roundtable on sustainable palm oil) base, organic oil soap base, cosmetic lotion base, sodium lauryl sulfate-free soap base, vegetable soap base, soap base comprising rapeseed oil and stearic acid, jelly soap base, bath butter, any other opaque soap base and mixtures thereof, and/or if present, wherein the capsules are selected from the group consisting of polymeric capsules, polymeric matrix particles, lipid capsules, lipid matrix particles, Actipearls, scent pellets, polymeric
  • the one or more additive(s) - if present - may thus simply be additives and/or may be used as carriers of the active substances as defined above (if applicable).
  • the capsules as defined above may, for instance, be carriers of one or more fragrance(s) and/or flavour(s).
  • the ratio of the density of a composition according to the invention to the density of water relates to a temperature of > 0°C to ⁇ 100°C, preferably > 0 °C to 95 °C, more preferably > 0 °C to 60 °C, more preferably > 0 °C to 40 °C, at standard pressure, i.e. when water is in a liquid aggregate state.
  • a particle according to the invention as described further below. Due to having a density that is lower than the density of water, the composition or particle (described further below) according to the invention advantageously is able to float on top of water or aqueous mixtures with densities that are similar to the one of water.
  • Fragrances that may be used in the composition according to the present invention are preferably selected from the group consisting of (customary product and brand names are given): 1-phenyl-2-methyl-2-propylacetate, 2-methylbutylbutyrate, aldron (4-[(3,3- dimethylbicyclo[2.2.1]hept-2-yl)methyl]-2-methylcyclohexanon), allyl-2- cyclohexyloxyg lycolate, al lyl-2-pentyloxyg lycolate , al lyl-3-cyclohexyl propionate, allylcapronate, amarocit (1 , 1-dimethoxy-2,2,5-trimethyl-4-hexene), ambral (dodecahydro- 3,8,8, 1 1a-tetramethyl-5h-3.5a-epoxynaphth[ 2.1-c]oxepine), ambrettolide (9-hexadecene-
  • ambrinol S (1 ,2,3,4,4a,5,6,7-octahydro-2,6,6-trimethyl-2-napthalinol
  • ambrinolepoxide ambrocenide (4ar,5r,7as,9r)-octahydro-2,2,5,8,8,9a-hexamethyl-4h- 4a,9-methanoazuleno(5,6-d)-1 ,3-dioxole)
  • ambroxide (3a,6,6,9a-tetramethyl- dodecahydronaphtho[2, 1-b]-furan), amylformiate, aurelione (7-cyclohexadecene-1-on und 8-cyclohexadecene-1-on), boronal [2-methyl-4-(2, 6, 6-trimethyl-1 -cyclohexene-1 -yl)- butenal], brahmanol [2-methyl-4-(2,2,3-trimethyl-3
  • extracts of natural raw materials can be used, e.g. essential oils, concretes, absolues, resine, resinoides, balms, tinctures, such as e.g. ambratincture; amyris oil; angelicaseed oil; angelicaroot oil; anise oil; valerian oil; basil oil; tree moss-absolue; bay oil; mugwort oil; benzoic resin; bergamot oil; beeswax-absolue; birch tar oil; bitter almond oil; savoury oil; bucco leaf oil; cabreuva oil; cade oil; calmus oil; campher oil; cananga oil; cardamomen oil; cascarilla oil; cassia oil; cassie-absolue; castoreum-absolue; cedar leaf oil; cedar wood oil; cistus oil; citronella oil; lemon oil; copaivabalm; copaivabalm oil; coriander oil; costus root oil; cumin oil;
  • Single aromatic substances selected from the group of carbohydrates can also be used as fragrances.
  • Particularly preferred single aromatic substances to be used and of the group of carbohydrates are e.g. 3-carene; alpha-pinene; beta-pinene; alpha-terpinene; gamma- terpinene; p-cymol; bisabolene; camphene; caryophyllene; cedrene; farnesene; limonene; longifolene; myrcene; ocimene; valencene; (e,z)-1 ,3,5-undecatriene; styrole; diphenylmethan; aliphatic alcohols such as e.g.
  • citronellol citronellol; geraniol; nerol; linalool; lavadulol; nerolidol; farnesol; tetrahydrolinalool; tetrahydrogeraniol; 2,6-dimethyl-7-octene- 2-ol; 2,6-dimethyloctane-2-ol; 2-methyl-6-methylene-7-octene-2-ol; 2,6-dimethyl-5,7- octadiene-2-ol; 2,6-dimethyl-3,5-octadiene-2-ol; 3,7-dimethyl-4,6-octadiene-3-ol; 3,7- dimethyl-1 ,5,7-octatriene-3-ol 2,6-dimethyl-2,5,7-octatriene-1-ol; as well as their formiates, acetates, propionates, isobutyrates, butyrates,
  • menthol isopulegol; alpha-terpineol; terpinenol-4; menthan-8-ol; menthan-1- ol; menthan-7-ol; borneol; isoborneol; linalooloxid; nopol; cedrol; ambrinol; vetiverol; guajol; as well as their formiates, acetates, propionates, isobutyrates, butyrates, isovalerianates, pentanoates, hexanoates, crotonates, tiglinates and 3-methyl-2-butenoates; cyclic terpene aldehydes and ketones such as e.g.
  • cineol cedrylmethyl ether; cyclododecylmethyl ether; 1 ,1-dimethoxycyclododecan; (ethoxymethoxy)cyclododecan; alpha-cedrenepoxid; 3a,6,6,9a-tetra- methyldodecahydronaphtho[2, 1-b]furan; 3a-ethyl-6,6,9a-trimethyldodecahydro- naphtho[2, 1-b]furan; 1 , 5, 9-trimethyl-13-oxabicyclo[10.1 ,0]trideca-4, 8-diene; rose oxide; 2- (2,4-dimethyl-3-cyclohexene-1-yl)-5-methyl-5-(1-methylpropyl)-1 ,3-dioxane; cyclic and macrocyclic ketones such as e.g.
  • esters of cycloaliphatic carboxylic acids such as e.g. allyl-3- cyclohexylpropionate; allylcyclohexyloxyacetate; cis- and trans-methyldihydrojasmonate; cis- and trans-methyljasmonate; methyl-2-hexyl-3-oxocyclopentancarboxylate; ethyl-2- ethyl-6,6-dimethyl-2-cyclohexencarboxylate; ethyl-2, 3,6, 6-tetramethyl-2- cyclohexencarboxylate; ethyl-2-m ethyl- 1 ,3-dioxolan-2-acetate; araliphatic alcohols such as benzene alcohol; 1-phenylethylalkohol; 2-phenylethylalkohol; 3-phenylpropanol; 2-
  • acetophenone 4-methylacetophenone; 4- methoxyacetophenone; 4-tert. -butyl-2, 6-dimethylacetophenone; 4-phenyl-2-butanone; 4- (4-hydroxyphenyl)-2-butanone; 1-(2-naphthalenyl)ethanone; 2-benzofuranylethanone; (3- methyl-2-benzofuranyl)ethanone; benzophenone; 1 , 1 , 2,3,3, 6-hexamethyl-5- indanylmethylketone; 6-tert.-butyl-1 , 1-dimethyl-4-indanylmethylketone; 1-[2,3-dihydro- 1 , 1 ,2,6-tetramethyl-3-(1-methylethyl)-1 h-5-indenyl]ethanone; 5',6',7',8'-tetrahydro-
  • aromatic and araliphatic carboxylic acids and their esters such as e.g. benzoic acid; phenylacetic acid; methylbenzoate; ethylbenzoate; hexylbenzoate; benzyl-benzoate; m ethyl phenylacetate; ethylphenylacetate; geranylphenylacetate; phenylethyl-phenylacetate; methylcinnmate; ethylcinnamate; benzylcinnamate; phenylethylcinnamate; cinnamylcinnamate; allylphenoxyacetate; methylsalicylate; isoamylsalicylate; hexylsalicylate; cyclohexylsalicylate; cis-3-hexenylsalicylate
  • estragol anethol
  • eugenol eugenylmethyl ether
  • isoeugenol isoeugenylmethyl ether
  • thymol carvacrol
  • diphenyl ether beta-naphthylmethyl ether
  • beta-naphthylethyl ether beta-naphthylisobutyl ether
  • 1 ,4-dimethoxybenzol eugenylacetate; 2-methoxy-4-methylphenol; 2-ethoxy-5-(1- propenyl)phenol
  • p-kresylphenylacetate heterocyclic compounds such as e.g.
  • the composition as described above comprises or consists of a) a total amount of 50-75 wt.%, more preferably of 50-70 wt.%, of surfactant(s) as defined above (individually or in combination), b) a total amount of 10-40 wt.%, more preferably of 14-20 wt.%, of fatty acid(s) as defined above (individually or in combination), c) a total amount of 2-10 wt.%, more preferably of 3-7 wt.-%, most preferably approximately 5 wt.%, of active substance(s) as defined above (individually or in combination), d) if present, a total amount of up to 10 wt.%, more preferably of up to 5 wt.-%, of glycerin and/or one or more other soap base(s) as defined above (individually or in combination), preferably of glycerin, and e) if present, a total amount of 1-10 wt
  • Another aspect of the present invention relates to a particle comprising or consisting of a composition according to the invention, wherein the particle has a density lower than the density of water, preferably wherein the particle is in the shape of a triangle, square, rectangle, sphere, cube, disc, rod, star, ring, pyramid, flower, petal, beads, half beads, pellet, sheet, block or heart.
  • the particle according to the invention comprises or consists of a single matrix of a composition according to the invention.
  • the particle according to the invention comprises or consists of two, three or more layers of one, two, three or more composition(s) according to the invention.
  • the particle according to the invention is a coated particle.
  • the particle according to the invention is an uncoated particle.
  • Another embodiment relates to a mixture of two or more particles as described above, wherein the particles have two or more different shapes as described above.
  • Another embodiment relates to a mixture of two or more particles as described above, wherein the respective particles are made from or comprise two or more different compositions according to the invention.
  • the particles in such mixture according to the invention may have the same shape or different shapes, preferably may have one, two or more (different) shapes as described above.
  • the particles according to the invention are stable at a wide range of temperatures, preferably from 0 °C to 50 °C.
  • the particles can be tailored to particular market demands, for example, may be heart-shaped for products suitable for Valentine’s day presents or in the shape of snowflakes for Christmas presents.
  • the average size of the particle is 500 pm to 5 mm, preferably is 0,8 mm to 5 mm.
  • the average particle size relates to the largest diameter of the particles in their respective shape.
  • the particles according to the invention on the one hand assemble at the top of water or an aqueous phase of e.g. a liquid product (as described further below) due to their low density and on the other hand can be uniformly dispersed inside water or an aqueous phase of a liquid product upon simple shaking of the product (e.g. manual shaking 3-4 times at tilted angle - approximately 45° - or shaking twice upside down). This enables an easy and uniform dispersion of the particles that can take place just before the use of the product.
  • a liquid product as described further below
  • the particles according to the invention assemble again at the top of or on top of the water phase/ an aqueous phase of a liquid product due to their low density.
  • This enables the particles to be uniformly dispersed during use of a liquid product comprising water/an aqueous phase, and their automatic separation - i.e. assembly at the top of or on top of the water/aqueous phase of a liquid product base - a short period of time after the use of a liquid product, therefore minimizing the interaction between the active ingredients of the particles and the water/aqueous phase of a liquid base while the product is stored.
  • compositions and particles according to the invention are easy to produce and to apply (as will be described further below), thus overcoming the issues of the state of the art described above.
  • the particle as described above is water- soluble, preferably is water-soluble only when exposed to a large amount of water.
  • a water-soluble particle according to the invention relates to a particle that disintegrates, i.e. dissolves, over time when in contact with (a large amount of) water or an aqueous solution upon exposure to friction (e.g. inside a washing machine).
  • a water-soluble particle relates to a particle that disintegrates, i.e. dissolves, over time when in contact with (a large amount of) water or an aqueous solution upon exposure to friction (e.g. inside a washing machine).
  • a carrier preferably a sheet of paper, cardboard, fabric and/or plastic, more preferably a plastic key card, coated with a composition according to the invention.
  • the carrier may be coated with a mixture of two or more different compositions according to the invention.
  • composition according to the invention is very lightweight due to its low density, it will advantageously not add much weight to the carrier.
  • Another aspect of the present invention relates to a method for producing a composition as described above, comprising or consisting of the following steps: (i) Providing the components a) to c) and, if applicable, the components d) and/or e) as defined above,
  • step (ii) combining the components provided in step (i),
  • a further aspect of the present invention relates to a method for producing a particle as described above or a coated carrier as described above, comprising or consisting of the following steps:
  • step (v) heating the composition of step (iv) to a temperature above room temperature, preferably to 30 to 150°C, more preferably 50 to 120°C, most preferably 70 to
  • step (vi) transferring the composition of step (v) into one or more mold(s), preferably wherein the mold(s) has/have one or more shape(s) as defined above, or extruding the composition into shape, preferably into one or more shape(s) as defined above, at a temperature at or below the heating temperature of step (v), cooling the obtained particles, preferably to room temperature, and, if applicable, removing the particles from the mold(s), or alternatively applying, preferably spraying, the composition of step (v) (on)to the surface of a carrier, preferably a sheet of paper, cardboard, fabric and/or plastic, and drying the composition or alternatively carrying out a pelletisation of the composition of step (v) on a cooled surface.
  • a carrier preferably a sheet of paper, cardboard, fabric and/or plastic
  • step (v) may be absent, i.e. the composition obtained in step (iv) may be subjected to room temperature extrusion into one or more shape(s) as defined above, or alternatively may be sprayed or otherwise applied (on)to the surface of a carrier as defined above at room temperature.
  • the method steps (vi) may not be alternatives, but may also be combined, i.e. two or more of these alternatives may be carried out in the process of producing a particle as described above or a coated carrier as described above.
  • the step (vi) of the method according to the invention comprises or consists of a step of melt pelletisation, molding, (room temperature or higher) extrusion, spray drying, fluid bed drying and/or hot melt extrusion.
  • Another aspect of the present invention relates to a composition, preferably a composition as described above, obtained or obtainable by a method as described above.
  • Another aspect of the present invention relates to particle or coated carrier, preferably a particle or a coated carrier as described above, obtained or obtainable by a method as described above.
  • Another aspect of the present invention relates to a liquid home care, personal care, laundry care, food or beverage product comprising one or more particle(s) as described above.
  • the particles according to the invention inside the liquid home care, personal care, laundry care, food or beverage product according to the invention on the one hand assemble at the top of or on top of the water/aqueous phase of said liquid product due to their low density and on the other hand can be uniformly dispersed inside said liquid product upon simple shaking of the product (e.g. manual shaking 3-4 times at tilted angle - approximately 45° - or shaking twice upside down). This enables an easy and uniform dispersion of the particles that can take place just before the use of said liquid product.
  • the particles according to the invention assemble again at the top of or on top of the water/aqueous phase of said liquid product due to their low density.
  • This enables the particles to be uniformly dispersed during use of said liquid product, and their automatic separation - i.e. assembly at the top of or on top of the water/aqueous phase of a liquid product base - a short period of time after the use of said liquid product, therefore minimizing the interaction between the active ingredients of the particles and the water/aqueous phase of a liquid base while the product according to the invention is stored.
  • liquid product relates to a product that is liquid at a temperature between ⁇ 0 to ⁇ 100 °C, preferably between 10 to 90 °C, more preferably between 30 to 70 °C, most preferably one that is liquid at room temperature (25 °C).
  • base of the liquid product used herein relates to the liquid part of the product according to the invention excluding the (solid) particles according to the invention.
  • the base of the liquid product according to the invention is a one-phase base, i.e. is either water-based (aqueous) or oil-based.
  • the base of the liquid product according to the invention is a two-phase base, i.e. comprises a water-based (aqueous) phase and an oil- based phase.
  • the liquid product according to the invention comprises an aqueous phase - in either a one-phase or two-phase system - it is preferred if the particles according to the invention are not water-soluble or, alternatively, only dissolve in a large amount of water when exposed to friction, so that the active substance(s) is/are slowly released, e.g. during a cycle of laundry washing wherein the liquid product is used as a laundry detergent.
  • the particles according to the invention float at the top of or on top of the water or aqueous phase.
  • a liquid product according to the invention comprising water or an aqueous phase and an oil-based phase
  • the particles according to the invention will assemble at the interface between the water or aqueous phase and the oil-based phase (i.e. at the top of or on top of the water or aqueous phase) due to their density being lower than the one of water.
  • the density of the particles according to the invention is both lower than the density of water and of the oil-based phase, then the particles will assemble at the top of or on top of the oil-based phase.
  • the particles After shaking of the liquid product according to the invention (as described above) comprising water or an aqueous phase and an oil-based phase and particles according to the invention, the particles will assemble at the top of or on top of the obtained emulsion.
  • fragrance(s) in such two-phase system, it is advantageously possible to provide one or more fragrance(s) in the oil-based phase and to additionally provide one or more further fragrance(s) as active substance(s) within the particles.
  • This is particularly advantageous in case two or more fragrances are not chemically compatible as they may be provided separately in two different phases, in the oil-based phase of the two-phase base and in the (solid) particles of the product.
  • the particles according to the invention comprise any colour or dye
  • the particles according to the invention comprise any colour or dye
  • the liquid product may also comprise a mixture of two or more different particles according to the invention, wherein the particles have two or more different colours.
  • the product described above is selected from the group consisting of laundry detergents, fabric softeners, candles, soaps, air fresheners, makeup removers, after-shave products, pre-shave products and disinfectants.
  • the liquid product is a liquid food or beverage product, such as for example a soup
  • the components of the composition according to the invention described above have to be selected from food-safe ingredients.
  • the particles according to the invention may contain, for instance, one or more flavour(s) and may be used as flavour boosters for liquid food or beverage products.
  • Another aspect of the present invention relates to the use of one or more particle(s) as described above, wherein the active substance(s) as defined above is/are one or more fragrance(s), to perfume a liquid home care, personal care or laundry care product as defined above.
  • Another preferred embodiment relates to the use of one or more particle(s) as described above, wherein the active substance(s) as defined above is/are one or more flavour(s) and/or fragrance(s), to flavour a liquid food or beverage product as defined above.
  • Another aspect of the present invention relates to the use of a coated carrier as described above as air freshener in combination with a heat and/or air emitting device.
  • coated carriers preferably sheets, according to the invention may, for example, be attached to lamp shades, televisions or computers, preferably in an area where the device is warm or hot or in proximity to or above air vents, if applicable.
  • the composition according to the invention comprises one or more fragrance(s)
  • the circulating air and/or heat will support release of the fragrance aroma(s) from the coated carrier and the carrier may thus be used as lightweight air freshener.
  • compositions according to the invention correspond to or can be derived from the preferred embodiments of the particles, coated carriers, products, methods or uses according to the invention which are explained above or vice versa.
  • the embodiments described herein are combinable with one another, as long as technically sensible.
  • compositions according to the invention are compositions according to the invention:
  • the acrylates (1.) and the shellac (2.) are applied to the outside of the particle to produce a coated particle, either as a mixture or separately in a layer by layer coating.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
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Abstract

The present invention relates to a composition comprising surfactant(s), fatty acid(s), and active substance(s), wherein the composition has a density lower than the density of water. The present invention further relates to particles comprising or consisting of a composition as described herein, carriers coated with a composition as described herein, methods for producing said composition or particles or coated carriers, liquid products comprising said particles and the use of said particles or coated carriers.

Description

Floating active ingredient systems
The present invention primarily relates to a composition as described herein, wherein the composition has a density lower than the density of water. The present invention further relates to particles comprising or consisting of a composition as described herein, carriers coated with a composition as described herein, methods for producing said composition or particles or coated carriers, liquid products comprising said particles and the use of said particles or coated carriers.
Further aspects of the present invention will arise from the description below, in particular from the examples, as well as from the attached patent claims.
Many liquid home care, personal care, laundry care, food or beverage products contain capsules or particles that carry active substances such as fragrances, flavours, cleaning- active substances, anti-malodour substances or enzymes, to enable or enhance their desired performance. However, often it is difficult to produce these liquid formulations with uniformly dispersed capsules or particles. To provide typical liquid detergents and fabric softeners with uniformly dispersed capsules or particles, for instance, the manufacturers often have to adapt the composition of the detergent or softener many times in order to achieve satisfactory results. The stabilization of the capsules or particles in the liquid base is usually challenging and often requires, for example, the adaptation of the density of the fragrance oil used, the optimization of the capsule shell thickness or of the polymers used inside the capsules or particles, the exclusion of traces of impurities in the oil or polymer or the adaptation of the formulation of the liquid base (viscosity etc.) without deteriorating the performance of the final product. Another disadvantage is that it is usually not possible to provide two or more chemically non-compatible active ingredients such as, for example, fragrance oils with said liquid products comprising capsules or particles according to the state of the art. The object of the present invention was to provide novel compositions that are easy to produce and thus overcome the problems and limitations described above. Moreover, it was an object of the present invention to provide a liquid product system, wherein the interaction of the active substances is minimized. According to a first aspect of the present invention, the stated objects are surprisingly achieved by a composition comprising or consisting of a) one, two, three or more surfactant(s), preferably selected from the group consisting of anionic, cationic and amphoteric surfactants (individually or in combination), b) one, two or more fatty acid(s) (individually or in combination), c) one or more active substance(s), preferably selected from the group consisting of fragrances, flavours, cleaning-active substances, cosmetic-active substances, functional agents, anti-malodour substances, enzymes, pheromones and probiotics, d) optionally glycerin and/or one or more other soap base(s) (individually or in combination), e) optionally one or more additive(s), preferably selected from the group consisting of thickeners, binders, absorbers, dyes, colour, buffering agents, capsules, matrix particles, beads and glitter (individually or in combination), wherein the composition has a density lower than the density of water.
According to a preferred embodiment one, two or three surfactant(s) is/are selected from the group consisting of sodium lauryl sulfate, cocamidopropyl betaine and sodium cocolisethionate, and/or one or two fatty acid(s) is/are selected from the group consisting of stearic acid and lauric acid, and/or if present, the other soap base(s) is/are selected from the group consisting of Shea butter base, African soap base, potassium soap base, RSPO (Roundtable on sustainable palm oil) base, organic oil soap base, cosmetic lotion base, sodium lauryl sulfate-free soap base, vegetable soap base, soap base comprising rapeseed oil and stearic acid, jelly soap base, bath butter, any other opaque soap base and mixtures thereof, and/or if present, wherein the capsules are selected from the group consisting of polymeric capsules, polymeric matrix particles, lipid capsules, lipid matrix particles, Actipearls, scent pellets, polymeric lipid capsules, polymeric lipid matrix particles, gelatin capsules, gelatin matrix particles, starch capsules, metallic particles and mixtures thereof.
Within the scope of the present text, the one or more additive(s) - if present - may thus simply be additives and/or may be used as carriers of the active substances as defined above (if applicable). The capsules as defined above may, for instance, be carriers of one or more fragrance(s) and/or flavour(s).
Within the scope of the present text, the ratio of the density of a composition according to the invention to the density of water relates to a temperature of > 0°C to < 100°C, preferably > 0 °C to 95 °C, more preferably > 0 °C to 60 °C, more preferably > 0 °C to 40 °C, at standard pressure, i.e. when water is in a liquid aggregate state. The same applies to a particle according to the invention as described further below. Due to having a density that is lower than the density of water, the composition or particle (described further below) according to the invention advantageously is able to float on top of water or aqueous mixtures with densities that are similar to the one of water.
Fragrances that may be used in the composition according to the present invention are preferably selected from the group consisting of (customary product and brand names are given): 1-phenyl-2-methyl-2-propylacetate, 2-methylbutylbutyrate, aldron (4-[(3,3- dimethylbicyclo[2.2.1]hept-2-yl)methyl]-2-methylcyclohexanon), allyl-2- cyclohexyloxyg lycolate, al lyl-2-pentyloxyg lycolate , al lyl-3-cyclohexyl propionate, allylcapronate, amarocit (1 , 1-dimethoxy-2,2,5-trimethyl-4-hexene), ambral (dodecahydro- 3,8,8, 1 1a-tetramethyl-5h-3.5a-epoxynaphth[ 2.1-c]oxepine), ambrettolide (9-hexadecene-
16-olide), ambrinol S (1 ,2,3,4,4a,5,6,7-octahydro-2,6,6-trimethyl-2-napthalinol), ambrinolepoxide, ambrocenide (4ar,5r,7as,9r)-octahydro-2,2,5,8,8,9a-hexamethyl-4h- 4a,9-methanoazuleno(5,6-d)-1 ,3-dioxole), ambroxide (3a,6,6,9a-tetramethyl- dodecahydronaphtho[2, 1-b]-furan), amylformiate, aurelione (7-cyclohexadecene-1-on und 8-cyclohexadecene-1-on), boronal [2-methyl-4-(2, 6, 6-trimethyl-1 -cyclohexene-1 -yl)- butenal], brahmanol [2-methyl-4-(2,2,3-trimethyl-3-cyclopentenyl)-butanol], buccoxime (1 ,5-dimethylbicyclo[3.2.1 ]octan-8-onoxim), butylacetate, cantryl (2,2,3-trimethyl-3- cyclopentenyl-1 -acetonitrile), cassix 150 (4-methoxy-2-nnethyl-2-butanthiol), chrysantheme [1-(2,4-dimethyl-3-cyclohexene-1-yl)-2,2-dinnethyl-1-propanone], cis-3-hexenylacetate, citronellylbutyrate, citronellyltiglinate (3,7-dimethyl-6-octenyl-2-nnethylcrotonate), citronitrile (3-methyl-5-phenyl-2-pentennitrile), citrowanil b (alpha-ethenyl-alpha-methyl benzeneproprannitrile), claritone (2,4,7-tetramethyl-6-octene-3-on), corps racine vs [2-(3- phenylpropyl)pyridinr], coumarone (1-(2-benzofuranyl)-ethanon), cyclogalbanate (allylcyclohexyloxyacetate), cyclohexyl mag nol (alpha-methylcyclohexanpropanol), datilate (1-cyclohexylethylcrotonate), ethyl-2-methylbutyrate, ethylisobutyrate, ethylisovalerate, ethyltricyclo[5.2.1 ,02,6]decan-2-ylcarboxylate, farenal (2,6, 10-trimethyl-9-undecenal), filbertone (5-methyl-2-heptene-4-on), fleursandol (4-(3a,4,5,6,7,7a-hexahydro-4,7- methano-1 h-inden-6-yl)-3-methyl-3-butene-2-ol), florazon (4-ethyl-alpha, alpha-dimethyl benzenepropanal), floropal (2,4,6-trimethyl-4-phenyl-1 ,3-dioxane), fragolane [(2,4- dimethyl-[1 ,3]dioxolane-2-yl)acetic acid ethylester)], frutinat (but-2-en acid-1 , 3- dimethylbutyl ester), gamma-decalactone, geranylacetate, geranylbutyrate, geranyltiglinate (trans-3,7-dimethyl-2,6-octadienyl-2-methylcrotonate), globalide [(1 1/12)- pentadecen-15-olide], globanone (8-cyclohexadecene-1-on), hexylbutyrate, hydrocitronitrile (beta-methyl-benzenepentannitrile), indianol (4-[3a,4,5,6,7,7a-hexahydro- 4,7-methano-1 h-inden-5(6)-yl]-3-methyl-3-butene-2-ol), indoflor (4, 4a, 5,9b- tetrahydoindeno[1 ,2-d]-m-dioxin), irisnitrile (2-nonenylnitrile), isoamylacetate, isoamylisovalerianate, isodamascon [1-(2,4,4-trimethyl-2-cyclohexene-1-yl)-2-butene-1- on], isomuscon (cyclohexadecanon), jacinthaflor (2-methyl-4-phenyl-1 ,3-dioxolan), ketamber (dodecahydro-3,8,8,1 1a-tetramethyl-5h-3,5a-epoxynaphth[2.1-c]oxepine), lactojasmon (4-hexyl-4-methylbutyrolactone), leguminal (propanal-methyl-cis-3-hexenyl- acetal), macrolide (oxacyclohexadecan-2-on), madranol (mixture of different hexahydro methylionone), magnolan (2,4-dimethyl-5,6-indeno-1 ,3-dioxan), majantol [2,2-dimethyl-3-
(3-methylphenyl)-propanol], mandaril (3, 12-tridecadiennitrile), menthylacetate, methylbutyrate, methyldihydrojasmonate, methylisobutyrate, mintonat (3,3,5-trimethyl- cyclohexylacetate), mugetanol [1-(4-isopropylcyclohexyl)-ethanol], nerolione [1-(3-methyl- 2-benzofuranyl)-ethanon], octylacetate, ozonile (2-tridecennitrile), palisandal (1 , 1- dimethoxycyclododecan), palisandin (cyclododecylmethyl ether), parmanyl [3-(cis-3- hexenyloxy)-propannitrile], passifloran (3-acetylthiohexylacetate), peacholide (cis- und trans-3-methyl-gamma-decalacton), prenylsalicylat, profarnesal (2,6, 10-trimethyl-5,9- undecadienal), projasmon p (2-heptylcyclopentanon), pyroprunate (but-2-en acid bicyclo- penten-2-yl-ester), rholiate (carbonic acid-ethyl-2, 3, 6-trimethylcyclohexylester), rosaphen (2-methyl-5-phenylpentan-1-ol), rosenoxid, sandel 80 (trans-3-isocamphylcyclohexanol), sandranol (2-ethyl-4-(2,2,3-trimethyl-3-cyclpentene-1-yl)-2-buten-1-ol), symrose (4- isoamylcyclohexanol), symroxane (4-(3-methylbutyl)-cyclohexanol (z)), tabanon [4-(2- butenyliden)-3,4,5-trinnethyl-2-cyclohexene-1-on], terpineol-4, timberol (2,2,6-trimethyl- alpha-propyl-cyclohexanpropanol), tolylacetataldeyde d para (4-methyl-benzene- acetaldehyde), tricyclodecenylpropionate, tropicol (2-mercapto-2-nnethyl-pentan-1-ol), vertosine [2-(2,4-(or 3,5)-dimethyl-3-cyclohexene-1-yl) -methylenaminobenzoic acid- methylester], vertral (octahydro-4,7-methano-1 h-indencarbaldehyde), vetikolacetate (1 ,3- dimethyl-3-phenylbutylacetate), vetival (4-cyclohexyl-4-nnethylpentan-2-on), and ysamber k (spiro hexahydro-1 ', 1 ',5',5'-tetrannethyl-[1 ,3-dioxolan-2,8'-(5'h)-[2h-2, 4a]-methanonaph- thalene].
Further preferred aromatic substances are listed in S. Arctander, Perfume and Flavor Materials, Vol. I and II, Montclair, N. J. 1969, self-publishing, or K. Bauer et al., Common Fragrance and Flavor Materials, 5th Edition, Wiley-VCH, Weinheim 2006.
Alternatively or additionally to fragrances, extracts of natural raw materials can be used, e.g. essential oils, concretes, absolues, resine, resinoides, balms, tinctures, such as e.g. ambratincture; amyris oil; angelicaseed oil; angelicaroot oil; anise oil; valerian oil; basil oil; tree moss-absolue; bay oil; mugwort oil; benzoic resin; bergamot oil; beeswax-absolue; birch tar oil; bitter almond oil; savoury oil; bucco leaf oil; cabreuva oil; cade oil; calmus oil; campher oil; cananga oil; cardamomen oil; cascarilla oil; cassia oil; cassie-absolue; castoreum-absolue; cedar leaf oil; cedar wood oil; cistus oil; citronella oil; lemon oil; copaivabalm; copaivabalm oil; coriander oil; costus root oil; cumin oil; cypressoil; davana oil; dill herb oil; dill seed oil; eau de brouts-absolue; oakmoss-absolue; elemi oil; estragon oil; eucalyptus-citriodora- oil; eucalyptus oil; fennel oil; spruce needle oil; galbanum oil; galbanumresin; geranium oil; grapefruit oil; guajak wood oil; gurjunbalm; gurjunbalm oil; helichrysum-absolue; helichrysum oil; ginger oil; iris root-absolue; iris root oil; jasmin- absolue; kalmus oil; chamomile oil blue; chamomile oil roman; carrot seed oil; kaskarilla oil; pine needle oil; spearmint oil; caraway oil; labdanum oil; labdanum-absolue; labdanumresin; lavandin-absolue; lavandin oil; lavender-absolue; lavender oil; lemongras oil; lovage oil; lime oil destilled; limette oil pressed; linaloe oil; litsea-cubeba- oil; bay leaf oil; macis oil; majoram oil; mandarin oil; massoirinden oil; mimosa-absolue; musk grain oil; musk tincture; muscatel-sage oil; nutmeg oil; myrrh-absolue; myrrh oil; myrtlen oil; carnation leaf oil; carnation blossom oil; neroli oil; olibanum-absolue; olibanum oil; opopanax oil; orange blossom-absolue; orange oil; origanum oil; palmarosa oil; patchouli oil; perilla oil; perubalm oil; parsley leaf oil; parsley seed oil; petitgrain oil; pepermint oil; pepper oil; piment oil; pine oil; poley oil; rose-absolue; rosewood oil; rose oil; rosemary oil; sage oil dalmatian; sage oil Spanish; sandalwood oil; celery seed oil; spike lavender oil; star anise oil; styrax oil; marigold oil; fir needle oil; tea tree oil; turpentine oil; thyme oil; tolubalm; tonka-absolue; tuberose absolue; vanilla extract; violet leaf absolue; verbena oil; vetiver oil; juniper oil; wine yeast oil; vermouth oil; wintergreen oil; ylang oil; ysop oil; zibet- absolue; cinnamon leaf oil; cinnamon bark oil as well as fractions thereof or ingredients isolated thereof.
Single aromatic substances selected from the group of carbohydrates can also be used as fragrances. Particularly preferred single aromatic substances to be used and of the group of carbohydrates are e.g. 3-carene; alpha-pinene; beta-pinene; alpha-terpinene; gamma- terpinene; p-cymol; bisabolene; camphene; caryophyllene; cedrene; farnesene; limonene; longifolene; myrcene; ocimene; valencene; (e,z)-1 ,3,5-undecatriene; styrole; diphenylmethan; aliphatic alcohols such as e.g. hexanol; octanol; 3-octanol; 2,6- dimethylheptanol; 2-methyl-2-heptanol; 2-methyl-2-octanol; (e)-2-hexenol; (e)- und (z)-3- hexenol; 1-octen-3-ol; mixture of 3,4,5,6,6-pentamethyl-3/4-hepten-2-ol und 3,5,6,6-tetra- methyl-4-methyleneheptan-2-ol; (e,z)-2,6-nonadienol; 3,7-dimethyl-7-methoxyoctan-2-ol;
9-decenol; 10-undecenol; 4-methyl-3-decen-5-ol; aliphatic aldehydes and their acetates as e.g. hexanal; heptanal; octanal; nonanal; decanal; undecanal; dodecanal; tridecanal; 2- methyloctanal; 2-methylnonanal; (e)-2-hexenal; (z)-4-heptenal; 2;6-dimethyl-5-heptenal;
10-undecenal; (e)-4-decenal; 2-dodecenal; 2,6, 10-trimethyl-9-undecenal; 2,6, 10-trimethyl- 5,9-undecadienal; heptanaldiethylacetal; 1 , 1-dimethoxy-2,2,5-trimethyl-4-hexene; citronellyloxyacetaldehyde; 1-(1-methoxy-propoxy)-(e/z)-3-hexene; aliphatic ketones and their oximes such as e.g. 2-heptanon; 2-octanon; 3-octanon; 2-nonanon; 5-methyl-3- heptanon; 5-methyl-3-heptanonoxime; 2,4,4,7-tetramethyl-6-octene-3-on; 6-methyl-5- heptene-2-on; aliphatic sulphurous compounds such as e.g. 3-methylthio-hexanol; 3- methylthiohexylacetate; 3-mercaptohexanol; 3-mercaptohexylacetate; 3- mercaptohexylbutyrate; 3-acetylthiohexylacetate; 1-menthen-8-thiol; aliphatic nitriles such as e.g. 2-nonene acid nitrile; 2-undecene acid nitrile; 2-tridecene acid nitrile; 3, 12- tridecadiene acid nitrile; 3,7-dimethyl-2,6-octadiene acid nitrile; 3,7-dimethyl-6-octene acid nitrile; esters of aliphatic carboxylic acids such as e.g. (e)- und (z)-3-hexenylformiate; ethylacetoacetate; isoamylacetate; hexylacetate; 3,5,5-trimethylhexylacetate; 3-methyl-2- butenylacetate; (e)-2-hexenylacetate; (e)- and (z)-3-hexenylacetate; octylacetate; 3- octylacetate; 1-octen-3-ylacetate; ethylbutyrate; butylbutyrate; isoamylbutyrate; hexylbutyrate; (e)- and (z)-3-hexenyl-isobutyrate; hexylcrotonate; ethylisovalerianate; ethyl-2-methylpentanoate; ethylhexanoate; allylhexanoate; ethylheptanoate; allylheptanoate; ethyloctanoate; ethyl-(e,z)-2,4-decadienoate; methyl-2-octinate; methyl-2- noninate; allyl-2-isoamyloxyacetate; methyl-3, 7-dimethyl-2,6-octadienoate; 4-methyl-2- pentylcrotonate; acyclic terpene alcohols such as e.g. citronellol; geraniol; nerol; linalool; lavadulol; nerolidol; farnesol; tetrahydrolinalool; tetrahydrogeraniol; 2,6-dimethyl-7-octene- 2-ol; 2,6-dimethyloctane-2-ol; 2-methyl-6-methylene-7-octene-2-ol; 2,6-dimethyl-5,7- octadiene-2-ol; 2,6-dimethyl-3,5-octadiene-2-ol; 3,7-dimethyl-4,6-octadiene-3-ol; 3,7- dimethyl-1 ,5,7-octatriene-3-ol 2,6-dimethyl-2,5,7-octatriene-1-ol; as well as their formiates, acetates, propionates, isobutyrates, butyrates, isovalerianates, pentanoates, hexanoates, crotonates, tiglinates and 3-methyl-2-butenoates; acyclic terpene aldehydes and ketones such as e.g. geranial; neral; citronellal; 7-hydroxy-3,7-dimethyloctanal; 7-methoxy-3,7- dimethyloctanal; 2,6, 10-trimethyl-9-undecenal; geranylaceton; as well as the dimethyl and diethylacetals of geranial, neral, 7-hydroxy-3,7-dimethyloctanal; cyclic terpene alcohols such as e.g. menthol; isopulegol; alpha-terpineol; terpinenol-4; menthan-8-ol; menthan-1- ol; menthan-7-ol; borneol; isoborneol; linalooloxid; nopol; cedrol; ambrinol; vetiverol; guajol; as well as their formiates, acetates, propionates, isobutyrates, butyrates, isovalerianates, pentanoates, hexanoates, crotonates, tiglinates and 3-methyl-2-butenoates; cyclic terpene aldehydes and ketones such as e.g. menthone; isomenthone; 8-mercaptomenthan-3-one; carvone; campher; fenchone; alpha-ionone; beta-ionone; alpha-n-methylionone; beta-n- methylionone; alpha-isomethylionone; beta-isomethylionone; alpha-irone; alpha- damascone; beta-damascone; beta-damascenone; delta-damascone; gamma- damascone; 1-(2,4,4-trimethyl-2-cyclohexene-1-yl)-2-buten-1-one; 1 ,3,4,6,7,8a- hexahydro-1 , 1 ,5,5-tetramethyl-2h-2,4a-methanonaphthalene-8(5h)-one; 2-methyl-4- (2,6,6-trimethyl-1-cyclohexene-1-yl)-2-butenal; nootkatone; dihydronootkatone; 4,6,8- megastigmatrien-3-one; alpha-sinensal; beta-sinensal; acetylated cedar wood oil (methylcedrylketone); cyclic alcohols such as e.g. 4-tert.-butylcyclohexanol; 3,3,5- trimethylcyclohexanol; 3-isocamphylcyclohexanol; 2,6,9-trimethyl-z2,z5,e9- cyclododecatriene-1-ol; 2-isobutyl-4-methyltetrahydro-2h-pyran-4-ol; cycloaliphatic alcohols such as e.g. alpha,3,3-trimethylcyclohexylmethanol; 1-(4- isopropylcyclohexyl)ethanol; 2-methyl-4-(2,2,3-trimethyl-3-cyclopent-1-yl) butanol; 2- methyl-4-(2,2,3-trimethyl-3-cyclopent-1-yl)-2-butene-1-ol; 2-ethyl-4-(2,2,3-trimethyl-3- cyclopent-1-yl)-2-butene-1-ol; 3-methyl-5-(2,2,3-trimethyl-3-cyclopent-1-yl)-pentan-2-ol; 3- methyl-5-(2,2,3-trimethyl-3-cyclopent-1-yl)-4-pentene-2-ol; 3,3-dimethyl-5-(2,2,3-trimethyl- 3-cyclopent-1-yl)-4-pentene-2-ol; 1-(2,2,6-trimethylcyclohexyl)pentan-3-ol; 1 -(2,2,6- trimethylcyclohexyl)hexan-3-ol; cyclic and cycloaliphatic ether such as e.g. cineol; cedrylmethyl ether; cyclododecylmethyl ether; 1 ,1-dimethoxycyclododecan; (ethoxymethoxy)cyclododecan; alpha-cedrenepoxid; 3a,6,6,9a-tetra- methyldodecahydronaphtho[2, 1-b]furan; 3a-ethyl-6,6,9a-trimethyldodecahydro- naphtho[2, 1-b]furan; 1 , 5, 9-trimethyl-13-oxabicyclo[10.1 ,0]trideca-4, 8-diene; rose oxide; 2- (2,4-dimethyl-3-cyclohexene-1-yl)-5-methyl-5-(1-methylpropyl)-1 ,3-dioxane; cyclic and macrocyclic ketones such as e.g. 4-tert.-butylcyclohexanone; 2,2,5-trimethyl-5- pentylcyclopentanone; 2-heptylcyclopentanone; 2-pentylcyclopentanone; 2-hydroxy-3- methyl-2-cyclopentene-1-one; 3-methyl-cis-2-pentene-1-yl-2-cyclopentene-1-one; 3- methyl-2-pentyl-2-cyclopentene-1-one; 3-methyl-4-cyclopentadecenone; 3-methyl-5- cyclopentadecenone; 3-methylcyclopentadecanone; 4-(1 -ethoxyvinyl)-3, 3,5,5- tetramethylcyclohexanone; 4-tert-pentylcyclohexanone; 5-cyclohexadecene-1-one; 6,7- dihydro-1 , 1 ,2,3,3-pentamethyl-4(5h)-indanone; 8-cyclohexadecene-1-one; 9- cycloheptadecene-1-one; cyclopentadecanone; cyclohexadecanone; cycloaliphatic aldehydes such as e.g. 2,4-dimethyl-3-cyclohexencarbaldehyde; 2-methyl-4-(2,2,6- trimethyl-cyclohexene-1-yl)-2-butenal; 4-(4-hydroxy-4-methylpentyl)-3- cyclohexencarbaldehyde; 4-(4-methyl-3-pentene-1-yl)-3-cyclohexencarbaldehyde; cycloaliphatic ketones such as e.g. 1-(3,3-dimethylcyclohexyl)-4-pentene-1-one; 2,2- dimethyl-1-(2,4-dimethyl-3-cyclohexene-1-yl)-1-propanone; 1-(5,5-dimethyl-1-cyclo- hexene-1 -yl)-4-pentene-1 -one; 2,3,8,8-tetramethyl-1 ,2,3,4,5,6,7,8-octahydro-2- naphtalenylmethylketone; methyl-2,6, 10-trimethyl-2, 5, 9-cyclododecatrienylketone; tert.- butyl-(2,4-dimethyl-3-cyclohexen-1-yl)ketone; esters of cyclic alcohols such as e.g. 2-tert- butylcyclohexylacetate; 4-tert-butylcyclohexylacetate; 2-tert pentylcyclohexylacetate; 4- tert-pentylcyclohexylacetate ; 3,3, 5-trimethylcyclohexylacetate ; decahyd ro-2- naphthylacetate; 2-cyclopentylcyclopentylcrotonate; 3-pentyltetrahydro-2h-pyran-4- ylacetate; decahydro-2,5,5,8a-tetramethyl-2-naphthylacetate; 4,7-methano-3a,4,5,6,7,7a- hexahydro-5, or 6-indenylacetate; 4,7-methano-3a,4,5,6,7,7a-hexahydro-5, or 6- indenylpropionate; 4,7-methano-3a,4,5,6,7,7a-hexahydro-5, or 6-indenylisobutyrate; 4,7- methanooctahydro-5, or 6-indenylacetate; esters of cycloaliphatic alcohols such as e.g. 1- cyclohexylethylcrotonate; esters of cycloaliphatic carboxylic acids such as e.g. allyl-3- cyclohexylpropionate; allylcyclohexyloxyacetate; cis- and trans-methyldihydrojasmonate; cis- and trans-methyljasmonate; methyl-2-hexyl-3-oxocyclopentancarboxylate; ethyl-2- ethyl-6,6-dimethyl-2-cyclohexencarboxylate; ethyl-2, 3,6, 6-tetramethyl-2- cyclohexencarboxylate; ethyl-2-m ethyl- 1 ,3-dioxolan-2-acetate; araliphatic alcohols such as benzene alcohol; 1-phenylethylalkohol; 2-phenylethylalkohol; 3-phenylpropanol; 2- phenylpropanol; 2-phenoxyethanol; 2,2-dimethyl-3-phenylpropanol; 2,2-dimethyl-3-(3- methylphenyl)propanol; 1 , 1-dimethyl-2-phenylethylalkohol; 1 , 1-dimethyl-3- phenylpropanol; 1 -ethyl-1 -methyl-3-phenylpropanol; 2-methyl-5-phenylpentanol; 3-methyl- 5-phenylpentanol; 3-phenyl-2-propen-1-ol; 4-methoxybenzene alcohol; 1-(4- isopropylphenyl)ethanol; esters of araliphatic alcohols and araliphatic carboxylic acids such as e.g. benzylacetate; benzylpropionate; benzylisobutyrate; benzylisovalerianate; 2- phenylethylacetate; 2-phenylethylpropionate; 2-phenylethylisobutyrate; 2- phenylethylisovalerianate; 1-phenylethylacetate; alpha-trichlormethylbenzylacetate; alpha, alpha-dimethylphenylethylacetate; alpha, alpha-dimethylphenylethylbutyrate; cinnamylacetate; 2-phenoxyethylisobutyrate; 4-methoxybenzylacetate; araliphatic ethers such as e.g. 2-phenylethylmethyl ether; 2-phenylethylisoamyl ether; 2-phenylethyl-1- ethoxyethyl ether, phenylacetaldehyddimethylacetale; phenylacetaldehyddiethylacetale; hydratropaaldehyddimethylacetale; phenylacetaldehydglycerinacetale; 2,4,6-trimethyl-4- phenyl-1 ,3-dioxan; 4,4a,5,9b-tetrahydroindeno[1 ,2-d]-m-dioxin; 4,4a,5,9b-tetrahydro-2,4- dimethylindeno[1 ,2-d]-nn-dioxin; aromatic and araliphatic aldehydes such as e.g. benzaldehyde; phenylacetaldehyde; 3-phenylpropanal; hydratropaaldehyde; 4- methylbenzaldehyde; 4-methylphenylacetaldehyde; 3-(4-ethylphenyl)-2,2- dimethylpropanal; 2-methyl-3-(4-isopropylphenyl)propanal; 2-methyl-3-(4-tert.- butylphenyl)propanal; 2-methyl-3-(4-isobutylphenyl)propanal; 3-(4-tert.- butylphenyl)propanal; cinnamic aldehyde; alpha-butylzimtaldehyde; alpha- amylzimtaldehyde; alpha-hexylzimtaldehyde; 3-methyl-5-phenylpentanal; 4- methoxybenzaldehyde; 4-hyd roxy-3-m ethoxybenzaldehyde ; 4-hyd roxy-3- ethoxybenzaldehyde; 3,4-methylendioxybenzaldehyde; 3,4-dimethoxybenzaldehyde; 2- methyl-3-(4-methoxyphenyl)propanal; 2-methyl-3-(4-methylendioxyphenyl)propanal; aromatic and araliphatic ketones such as e.g. acetophenone; 4-methylacetophenone; 4- methoxyacetophenone; 4-tert. -butyl-2, 6-dimethylacetophenone; 4-phenyl-2-butanone; 4- (4-hydroxyphenyl)-2-butanone; 1-(2-naphthalenyl)ethanone; 2-benzofuranylethanone; (3- methyl-2-benzofuranyl)ethanone; benzophenone; 1 , 1 , 2,3,3, 6-hexamethyl-5- indanylmethylketone; 6-tert.-butyl-1 , 1-dimethyl-4-indanylmethylketone; 1-[2,3-dihydro- 1 , 1 ,2,6-tetramethyl-3-(1-methylethyl)-1 h-5-indenyl]ethanone; 5',6',7',8'-tetrahydro-
3',5',5',6',8',8'-hexamethyl-2-acetonaphthone; aromatic and araliphatic carboxylic acids and their esters such as e.g. benzoic acid; phenylacetic acid; methylbenzoate; ethylbenzoate; hexylbenzoate; benzyl-benzoate; m ethyl phenylacetate; ethylphenylacetate; geranylphenylacetate; phenylethyl-phenylacetate; methylcinnmate; ethylcinnamate; benzylcinnamate; phenylethylcinnamate; cinnamylcinnamate; allylphenoxyacetate; methylsalicylate; isoamylsalicylate; hexylsalicylate; cyclohexylsalicylate; cis-3-hexenylsalicylate; benzylsalicylate; phenylethylsalicylate; methyl-2, 4-dihydroxy-3,6-dimethylbenzoate; ethyl-3-phenylglycidate; ethyl-3-methyl-3- phenylglycidate; nitrogenous aromatic compounds such as 2,4,6-trinitro-1 ,3-dimethyl-5- tert.-butylbenzol; 3,5-dinitro-2,6-dimethyl-4-tert-butylacetophenone; cinnamic acid nitrile; 3-methyl-5-phenyl-2-pentensaurenitrile; 3-methyl-5-phenylpentansaurenitrile; methylanthranilate; methy-n-methylanthranilate; schiff bases of methylantranilate with 7- hydroxy-3,7-dimethyloctanal, 2-methyl-3-(4-tert.-butylphenyl)propanal or 2,4-dimethyl-3- cyclohexencarbaldehyde; 6-isopropylchinoline; 6-isobutylchinoline; 6-sec.-butylchinoline; 2-(3-phenylpropyl)pyridine; indol; skatol; 2-methoxy-3-isopropylpyrazine; 2-isobutyl-3- methoxypyrazine; phenols, phenyl ethers and phenyl esters such as e.g. estragol; anethol; eugenol; eugenylmethyl ether; isoeugenol; isoeugenylmethyl ether; thymol; carvacrol; diphenyl ether; beta-naphthylmethyl ether; beta-naphthylethyl ether; beta-naphthylisobutyl ether; 1 ,4-dimethoxybenzol; eugenylacetate; 2-methoxy-4-methylphenol; 2-ethoxy-5-(1- propenyl)phenol; p-kresylphenylacetate; heterocyclic compounds such as e.g. 2,5- dimethyl-4-hydroxy-2h-furan-3-one; 2-ethyl-4-hydroxy-5-methyl-2h-furan-3-one; 3- hydroxy-2-methyl-4h-pyran-4-one; 2-ethyl-3-hydroxy-4h-pyran-4-one; lactones such as e.g. 1 ,4-octanolide; 3-methyl-1 ,4-octanolide; 1 ,4-nonanolide; 1 ,4-decanolide; 8-decen-1 ,4- olide; 1 ,4-undecanolide; 1 ,4-dodecanolide; 1 ,5-decanolide; 1 ,5-dodecanolide; 4-methyl- 1 ,4-decanolide; 1 , 15-pentadecanolide; cis- and trans-1 1-pentadecene-1 , 15-olide; cis- and trans-12-pentadecene-1 , 15-olide; 1 , 16-hexadecanolide; 9-hexadecene-1 , 16-olide; 10- oxa-1 , 16-hexadecanolide; 1 1 -oxa-1 , 16-hexadecanolide; 12-oxa-1 , 16-hexadecanolide; ethylen-1 , 12-dodecandioate; ethylen-1 ,13-tridecandioate; coumarin; 2,3-dihydrocoumarin; and octahydrocoumarin.
According to a preferred embodiment, the composition as described above comprises or consists of a) a total amount of 50-75 wt.%, more preferably of 50-70 wt.%, of surfactant(s) as defined above (individually or in combination), b) a total amount of 10-40 wt.%, more preferably of 14-20 wt.%, of fatty acid(s) as defined above (individually or in combination), c) a total amount of 2-10 wt.%, more preferably of 3-7 wt.-%, most preferably approximately 5 wt.%, of active substance(s) as defined above (individually or in combination), d) if present, a total amount of up to 10 wt.%, more preferably of up to 5 wt.-%, of glycerin and/or one or more other soap base(s) as defined above (individually or in combination), preferably of glycerin, and e) if present, a total amount of 1-10 wt.% of additive(s) as defined above, based on the total weight of the composition, respectively.
Another aspect of the present invention relates to a particle comprising or consisting of a composition according to the invention, wherein the particle has a density lower than the density of water, preferably wherein the particle is in the shape of a triangle, square, rectangle, sphere, cube, disc, rod, star, ring, pyramid, flower, petal, beads, half beads, pellet, sheet, block or heart.
According to a preferred embodiment, the particle according to the invention comprises or consists of a single matrix of a composition according to the invention.
According to another preferred embodiment, the particle according to the invention comprises or consists of two, three or more layers of one, two, three or more composition(s) according to the invention.
According to another preferred embodiment, the particle according to the invention is a coated particle.
According to another preferred embodiment, the particle according to the invention is an uncoated particle.
Another embodiment relates to a mixture of two or more particles as described above, wherein the particles have two or more different shapes as described above. Another embodiment relates to a mixture of two or more particles as described above, wherein the respective particles are made from or comprise two or more different compositions according to the invention. The particles in such mixture according to the invention may have the same shape or different shapes, preferably may have one, two or more (different) shapes as described above. According to a preferred embodiment, the particles according to the invention are stable at a wide range of temperatures, preferably from 0 °C to 50 °C.
Providing the particles in an attractive shape leads to an appealing product appearance for premium markets and brands. The particles can be tailored to particular market demands, for example, may be heart-shaped for products suitable for Valentine’s day presents or in the shape of snowflakes for Christmas presents.
Further preferred is a particle according to the invention, wherein the average size of the particle is 500 pm to 5 mm, preferably is 0,8 mm to 5 mm. Within the scope of the present text, the average particle size relates to the largest diameter of the particles in their respective shape.
The particles according to the invention on the one hand assemble at the top of water or an aqueous phase of e.g. a liquid product (as described further below) due to their low density and on the other hand can be uniformly dispersed inside water or an aqueous phase of a liquid product upon simple shaking of the product (e.g. manual shaking 3-4 times at tilted angle - approximately 45° - or shaking twice upside down). This enables an easy and uniform dispersion of the particles that can take place just before the use of the product. Advantageously, after keeping the product stationary for 5 minutes or more, preferably for 3 minutes or more, more preferably for 2 minutes or more, 1 minute or more or 30 seconds or more, the particles according to the invention assemble again at the top of or on top of the water phase/ an aqueous phase of a liquid product due to their low density. This enables the particles to be uniformly dispersed during use of a liquid product comprising water/an aqueous phase, and their automatic separation - i.e. assembly at the top of or on top of the water/aqueous phase of a liquid product base - a short period of time after the use of a liquid product, therefore minimizing the interaction between the active ingredients of the particles and the water/aqueous phase of a liquid base while the product is stored.
Moreover, the compositions and particles according to the invention are easy to produce and to apply (as will be described further below), thus overcoming the issues of the state of the art described above.
According to another preferred embodiment, the particle as described above is water- soluble, preferably is water-soluble only when exposed to a large amount of water.
Within the scope of the present text, a water-soluble particle according to the invention relates to a particle that disintegrates, i.e. dissolves, over time when in contact with (a large amount of) water or an aqueous solution upon exposure to friction (e.g. inside a washing machine). The person skilled in the art is aware of the fact that in order for this to happen not all of the components of the particles or of the composition according to the invention, respectively, have to be water-soluble themselves.
The amount of time it will take for the particle according to the invention to fully disintegrate (dissolve) in water or an aqueous solution can advantageously be influenced by the chosen ingredients and their amounts contained in the composition according to the invention. Another aspect of the present invention relates to a carrier, preferably a sheet of paper, cardboard, fabric and/or plastic, more preferably a plastic key card, coated with a composition according to the invention.
According to a preferred embodiment, the carrier may be coated with a mixture of two or more different compositions according to the invention.
Since the composition according to the invention is very lightweight due to its low density, it will advantageously not add much weight to the carrier.
Another aspect of the present invention relates to a method for producing a composition as described above, comprising or consisting of the following steps: (i) Providing the components a) to c) and, if applicable, the components d) and/or e) as defined above,
(ii) combining the components provided in step (i),
(iii) mixing the combined components to obtain a homogenous mixture.
A further aspect of the present invention relates to a method for producing a particle as described above or a coated carrier as described above, comprising or consisting of the following steps:
(iv) Carrying out the method steps as described above (for producing a composition according to the invention),
(v) heating the composition of step (iv) to a temperature above room temperature, preferably to 30 to 150°C, more preferably 50 to 120°C, most preferably 70 to
1 10°C, preferably to a temperature above the melting point of the of the composition,
(vi) transferring the composition of step (v) into one or more mold(s), preferably wherein the mold(s) has/have one or more shape(s) as defined above, or extruding the composition into shape, preferably into one or more shape(s) as defined above, at a temperature at or below the heating temperature of step (v), cooling the obtained particles, preferably to room temperature, and, if applicable, removing the particles from the mold(s), or alternatively applying, preferably spraying, the composition of step (v) (on)to the surface of a carrier, preferably a sheet of paper, cardboard, fabric and/or plastic, and drying the composition or alternatively carrying out a pelletisation of the composition of step (v) on a cooled surface.
According to an alternative embodiment of the method described above, step (v) may be absent, i.e. the composition obtained in step (iv) may be subjected to room temperature extrusion into one or more shape(s) as defined above, or alternatively may be sprayed or otherwise applied (on)to the surface of a carrier as defined above at room temperature.
If technically sensible, the method steps (vi) may not be alternatives, but may also be combined, i.e. two or more of these alternatives may be carried out in the process of producing a particle as described above or a coated carrier as described above.
According to a preferred embodiment, the step (vi) of the method according to the invention comprises or consists of a step of melt pelletisation, molding, (room temperature or higher) extrusion, spray drying, fluid bed drying and/or hot melt extrusion.
Another aspect of the present invention relates to a composition, preferably a composition as described above, obtained or obtainable by a method as described above.
Another aspect of the present invention relates to particle or coated carrier, preferably a particle or a coated carrier as described above, obtained or obtainable by a method as described above.
Another aspect of the present invention relates to a liquid home care, personal care, laundry care, food or beverage product comprising one or more particle(s) as described above. The particles according to the invention inside the liquid home care, personal care, laundry care, food or beverage product according to the invention on the one hand assemble at the top of or on top of the water/aqueous phase of said liquid product due to their low density and on the other hand can be uniformly dispersed inside said liquid product upon simple shaking of the product (e.g. manual shaking 3-4 times at tilted angle - approximately 45° - or shaking twice upside down). This enables an easy and uniform dispersion of the particles that can take place just before the use of said liquid product. Advantageously, after keeping the product according to the invention stationary for 5 minutes or more, preferably for 3 minutes or more, more preferably for 2 minutes or more, 1 minute or more or 30 seconds or more, the particles according to the invention assemble again at the top of or on top of the water/aqueous phase of said liquid product due to their low density. This enables the particles to be uniformly dispersed during use of said liquid product, and their automatic separation - i.e. assembly at the top of or on top of the water/aqueous phase of a liquid product base - a short period of time after the use of said liquid product, therefore minimizing the interaction between the active ingredients of the particles and the water/aqueous phase of a liquid base while the product according to the invention is stored.
Within the scope of the present text, the term“liquid product” relates to a product that is liquid at a temperature between < 0 to < 100 °C, preferably between 10 to 90 °C, more preferably between 30 to 70 °C, most preferably one that is liquid at room temperature (25 °C). Moreover, the term“base” of the liquid product used herein relates to the liquid part of the product according to the invention excluding the (solid) particles according to the invention.
According to a preferred embodiment, the base of the liquid product according to the invention is a one-phase base, i.e. is either water-based (aqueous) or oil-based. According to an alternative preferred embodiment, the base of the liquid product according to the invention is a two-phase base, i.e. comprises a water-based (aqueous) phase and an oil- based phase.
If the liquid product according to the invention comprises an aqueous phase - in either a one-phase or two-phase system - it is preferred if the particles according to the invention are not water-soluble or, alternatively, only dissolve in a large amount of water when exposed to friction, so that the active substance(s) is/are slowly released, e.g. during a cycle of laundry washing wherein the liquid product is used as a laundry detergent. In a liquid product according to the invention comprising water or an aqueous phase, the particles according to the invention float at the top of or on top of the water or aqueous phase.
In a liquid product according to the invention comprising water or an aqueous phase and an oil-based phase, the particles according to the invention will assemble at the interface between the water or aqueous phase and the oil-based phase (i.e. at the top of or on top of the water or aqueous phase) due to their density being lower than the one of water. In case the density of the particles according to the invention is both lower than the density of water and of the oil-based phase, then the particles will assemble at the top of or on top of the oil-based phase. After shaking of the liquid product according to the invention (as described above) comprising water or an aqueous phase and an oil-based phase and particles according to the invention, the particles will assemble at the top of or on top of the obtained emulsion.
In such two-phase system, it is advantageously possible to provide one or more fragrance(s) in the oil-based phase and to additionally provide one or more further fragrance(s) as active substance(s) within the particles. This is particularly advantageous in case two or more fragrances are not chemically compatible as they may be provided separately in two different phases, in the oil-based phase of the two-phase base and in the (solid) particles of the product. Moreover, in case the particles according to the invention comprise any colour or dye, it is possible to provide the particles according to the invention in the same or a similar colour as the one-phase base or, alternatively, as the aqueous and/or oil-based phase of a two- phase base, to obtain a liquid product according to the invention wherein the particles according to the invention are not in a strong colour contrast to the product base and may not be clearly visible.
On the other hand, in case the particles according to the invention comprise any colour or dye, it is also possible to provide the particles according to the invention in a contrasting colour to the colour of the one-phase base or, alternatively, to the aqueous and/or oil-based phase of a two-phase base, in order to obtain a liquid product according to the invention, wherein the particles according to the invention display a strong colour contrast to the product base and may be easily visible. According to another embodiment, the liquid product may also comprise a mixture of two or more different particles according to the invention, wherein the particles have two or more different colours.
According to a preferred embodiment, the product described above is selected from the group consisting of laundry detergents, fabric softeners, candles, soaps, air fresheners, makeup removers, after-shave products, pre-shave products and disinfectants.
In case the liquid product is a liquid food or beverage product, such as for example a soup, the components of the composition according to the invention described above have to be selected from food-safe ingredients. In such case, the particles according to the invention may contain, for instance, one or more flavour(s) and may be used as flavour boosters for liquid food or beverage products.
Another aspect of the present invention relates to the use of one or more particle(s) as described above, wherein the active substance(s) as defined above is/are one or more fragrance(s), to perfume a liquid home care, personal care or laundry care product as defined above.
Another preferred embodiment relates to the use of one or more particle(s) as described above, wherein the active substance(s) as defined above is/are one or more flavour(s) and/or fragrance(s), to flavour a liquid food or beverage product as defined above.
Another aspect of the present invention relates to the use of a coated carrier as described above as air freshener in combination with a heat and/or air emitting device.
The coated carriers, preferably sheets, according to the invention may, for example, be attached to lamp shades, televisions or computers, preferably in an area where the device is warm or hot or in proximity to or above air vents, if applicable. If the composition according to the invention comprises one or more fragrance(s), the circulating air and/or heat will support release of the fragrance aroma(s) from the coated carrier and the carrier may thus be used as lightweight air freshener.
Preferred embodiments of the compositions according to the invention correspond to or can be derived from the preferred embodiments of the particles, coated carriers, products, methods or uses according to the invention which are explained above or vice versa. Thus, the embodiments described herein are combinable with one another, as long as technically sensible.
The invention will now be described in more detail hereinafter with references to the examples. The percentage values cited in the following examples relate to weight-%.
Examples:
Compositions according to the invention:
Composition 1
Figure imgf000019_0001
* e.g. Miss Coco HP
Composition 2
Figure imgf000019_0002
* e.g. Citron Vert Composition 3
Figure imgf000020_0001
* e.g. Miss Coco HP
Composition 4
Figure imgf000020_0002
* e.g. Miss Coco HP
Composition 5
Figure imgf000020_0003
* e.g. Beautiful life HP
Composition 6
Figure imgf000020_0004
* e.g. Beautiful life HP Composition 7
Figure imgf000021_0001
* e.g. Miss Coco HP
Composition 8
Figure imgf000021_0002
* e.g. Miss Coco HP
Composition 9
Figure imgf000021_0003
* e.g. Miss Coco HP
The acrylates (1.) and the shellac (2.) are applied to the outside of the particle to produce a coated particle, either as a mixture or separately in a layer by layer coating.

Claims

Patent claims:
1. Composition comprising or consisting of a) one, two, three or more surfactant(s), preferably selected from the group consisting of anionic, cationic and amphoteric surfactants, b) one, two or more fatty acid(s), c) one or more active substance(s), preferably selected from the group consisting of fragrances, flavours, cleaning-active substances, cosmetic- active substances, functional agents, anti-malodour substances, enzymes, pheromones and probiotics, d) optionally glycerin and/or one or more other soap base(s), e) optionally one or more additive(s), preferably selected from the group consisting of thickeners, binders, absorbers, dyes, colour, buffering agents, capsules, matrix particles, beads and glitter, wherein the composition has a density lower than the density of water.
2. Composition according to claim 1 , comprising or consisting of a) a total amount of 50-75 wt.%, more preferably of 50-70 wt.%, of surfactant(s) as defined in claim 1 , b) a total amount of 10-40 wt.%, more preferably of 14-20 wt.%, of fatty acid(s) as defined in claim 1 , c) a total amount of 2-10 wt.%, more preferably of 3-7 wt.-%, of active substance(s) as defined in claim 1 , d) if present, a total amount of up to 10 wt.%, more preferably of up to 5 wt.-%, of glycerin and/or one or more other soap base(s) as defined in claim 1 , preferably of glycerin, and e) if present, a total amount of 1-10 wt.% of additive(s) as defined in claim 1 , based on the total weight of the composition, respectively.
3. Particle comprising or consisting of a composition according to claim 1 or 2, wherein the particle has a density lower than the density of water, preferably wherein the particle is in the shape of a triangle, square, rectangle, sphere, cube, disc, rod, star, ring, pyramid, flower, petal, beads, half beads, pellet, sheet, block or heart.
4. Particle according to claim 3, wherein the average size of the particle is 500 pm to 5 mm, preferably is 0,8 mm to 5 mm.
5. Particle according to claim 3 or 4, wherein the particle is water-soluble.
6. Carrier, preferably a sheet of paper, cardboard, fabric and/or plastic, more preferably a plastic key card, coated with a composition of claim 1 or 2.
7. Method for producing a composition according to claim 1 or 2, comprising or consisting of the following steps:
(i) Providing the components a) to c) and, if applicable, the components d) and/or e) as defined in claim 1 or 2,
(ii) combining the components provided in step (i),
(iii) mixing the combined components to obtain a homogenous mixture.
8. Method for producing a particle according to any of the claims 3 to 5 or a coated carrier according to claim 6, comprising or consisting of the following steps:
(iv) Carrying out the method steps as defined in claim 7,
(v) heating the composition of step (iv) to a temperature above room temperature, preferably to 30 to 150°C, more preferably 50 to 120°C, most preferably 70 to 1 10°C, , preferably to a temperature above the melting point of the of the composition, (vi) transferring the composition of step (v) into one or more mold(s), preferably wherein the mold(s) has/have one or more shape(s) as defined in claim 3, or extruding the composition into shape, preferably into one or more shape(s) as defined in claim 3, at a temperature at or below the heating temperature of step (v), cooling the obtained particles, preferably to room temperature, and, if applicable, removing the particles from the mold(s), or alternatively applying, preferably spraying, the composition of step (v) (on)to the surface of a carrier, preferably a sheet of paper, cardboard, fabric and/or plastic, and drying the composition or alternatively carrying out a pelletisation of the composition of step (v) on a cooled surface.
9. Composition, preferably composition according to claim 1 or 2, obtained or obtainable by a method according to claim 7.
10. Particle or coated carrier, preferably particle according to any of the claims 3 to 5 or a coated carrier according to claim 6, obtained or obtainable by a method according to claim 8.
1 1. Liquid home care, personal care, laundry care, food or beverage product comprising one or more particle(s) according to any of the claims 3 to 5.
12. Product according to claim 1 1 , wherein the product is selected from the group consisting of laundry detergents, fabric softeners, candles, soaps, air fresheners, makeup removers, after-shave products, pre-shave products and disinfectants.
13. Use of one or more particle(s) according to any of the claims 3 to 5, wherein the active substance(s) as defined in claim 1 is/are one or more fragrance(s), to perfume a liquid home care, personal care or laundry care product as defined in claim 1 1 or 12.
14. Use of a coated carrier according to claim 6 as air freshener in combination with a heat and/or air emitting device.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11975087B2 (en) 2020-03-30 2024-05-07 Colgate-Palmolive Company Sulfate-free personal care compositions and methods for preventing and treating pollution damage to skin

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