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
  • C11D3/0005—Other compounding ingredients characterised by their effect
  • C11D3/001—Softening compositions
• • 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
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/20—Organic compounds containing oxygen
  • C11D3/22—Carbohydrates or derivatives thereof
  • C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
• • 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
  • C11D3/502—Protected perfumes
  • C11D3/505—Protected perfumes encapsulated or adsorbed on a carrier, e.g. zeolite or clay
• • 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
  • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
  • C11D2111/10—Objects to be cleaned
  • C11D2111/12—Soft surfaces, e.g. textile

Definitions

• the present invention is in the field of laundry compositions, in particular laundry compositions for improving the drape or resilience of a fabric. of the Invention
• Microcapsules are used in various laundry applications, to deliver active materials to fabrics. Microcapsules are known to provide various benefits, such as delayed release of protection of the active material against other ingredients in the laundry composition. Conventional microcapsules typically have a microcapsule wall formed of a synthetic polymer such as a melamine formaldehyde polymer or polyacrylate.
• laundry composition it is herein understood to mean a consumer product suitable for use in a laundry process.
• laundry compositions include liquid laundry detergents, laundry detergent powders, fabric conditioners, ancillary laundry compositions such as scent boosters and fabric spray compositions.
• the laundry products of the present invention comprise microcapsules.
• the microcapsules may simply be provided as microcapsules but preferably are provided in a microcapsule composition comprising microcapsules in a slurry.
• the microcapsules comprise a microcapsule core comprising an active ingredient and microcapsule wall encapsulating the core.
• the microcapsule wall comprises a wall polymer and a crosslinking agent.
• the microcapsules comprise 10 wt.% to 98 wt.% core materials, 1 wt.% to 20 wt.% wall polymer and optionally 0.2 wt.% to 6 wt.% crosslinking agent.
• microcapsules may be prepared by any suitable process including those exemplary processes described here.
• the microcapsule wall may also be referred to as the microcapsule shell.
• the microcapsule wall comprises a bio polymer.
• Bio polymers are natural polymers produced by the cells of living organisms and the derivatives of natural polymers, i.e. polymers derived from bio polymers.
• suitable bio polymers include: lignin, polysaccharides, proteins and nucleic acids.
• the microcapsule wall preferably comprises proteins, polysaccharides and mixtures thereof.
• the biopolymer may be treated by various processes to provide derivatives, including but not limited to hydrolysis, condensation, functionalising such as ethoxylating, crosslinking, etc.
• Suitable proteins for use in this invention include whey proteins, plant proteins and gelatine.
• the plant proteins are used.
• Suitable preferred proteins include proteins selected from: pea, potato proteins, brown rice, white rice, wheat, egg, barley, pumpkin seed, oat, almond, whey, casein, silk, gelatin, algae, rye, spelt, gluten, rapeseed, sunflower, corn, soybean, bean, chickpea, lentil, lupin, peanut, alfalfa, hemp, proteins resulting from fermentation, proteins from food waste and combinations thereof.
• Particularly preferred proteins include proteins selected from chickpea, pea proteins, potato proteins, brown rice proteins, white rice proteins, wheat proteins, barley proteins, pumpkin seed proteins, oat proteins, almond proteins, and combinations thereof. This includes derivatives of the aforementioned proteins.
• whey protein refers to the protein contained in whey, a dairy liquid obtained as a supernatant of curds when milk or a dairy liquid containing milk components, is processed into cheese curd to obtain a cheese-making curd as a semisolid.
• Whey protein is generally understood in principle to include the globular proteins b-lactoglobulin and a-lactalbumin at various ratios such as 1: 1 to 5: 1 (e.g., 2: 1). It may also include lower amounts of serum albumin, immunoglobulin and other globulins.
• the term whey protein is also intended to include partially or completely modified or denatured whey proteins. Purified b-lactoglobulin and/or a- lactalbumin polypeptides may also be used in preparation of microcapsules of this invention.
• Gelatin refers to a mixture of proteins produced by partial hydrolysis of collagen extracted from the skin, bones, and connective tissues of animals.
• Gelatin can be derived from any type of collagen, such as collagen type I, II, III, or IV.
• Such proteins are characterized by including Gly- Xaa-Yaa triplets wherein Gly is the amino acid glycine and Xaa and Yaa can be the same or different and can be any known amino acid. At least 40% of the amino acids are preferably present in the form of consecutive Gly-Xaa-Yaa triplets.
• a preferred class of proteins are plant proteins.
• Plant proteins are proteins that accumulate in various plant tissues.
• Preferred plant proteins can be classified into two classes: seed or grain proteins and vegetable proteins.
• Seed/grain proteins are a set of proteins that accumulate to high levels in seeds/grains during the late stages of seed/grain development, whereas vegetable proteins are proteins that accumulate in vegetative tissues such as leaves, stems and, depending on plant species, tubers.
• seed/grain/legumes storage proteins are proteins from: soya, lupine, pea, chickpea, alfalfa, horse bean, lentil, and haricot bean; from oilseed plants such as colza, cottonseed and sunflower; from cereals like wheat, maize, barley, malt, oats, rye and rice (e.g., brown rice protein), or a combination thereof.
• plant protein is intended to include a plant protein isolate, plant protein concentrate, or a combination thereof. Plant protein isolates and concentrates are generally understood to be composed of several proteins. For example, pea protein isolates and concentrates may include legumin, vicilin and convicilin proteins. Similarly, brown rice protein isolates may include albumin, globulin and glutelin proteins.
• plant protein is also intended to include a partially or completely modified or denatured plant storage protein. Individual polypeptides (e.g., legumin, vicilin, convicilin, albumin, globulin or glutelin) may also be used in preparation of microcapsules of this invention.
• Exemplary chaotropic agents are guanidine salts (e.g., guanidine hydrochloride and guanidine carbonate), urea, polysorbate, sodium benzoate, vanillin, o-cresol, phenol, propanol, formamide, ethanol, fructose, ammonium sulfate, ammonium chloride, ammonium nitrate, ammonium phosphate, potassium sulfate, potassium chloride, potassium iodide, potassium nitrate, potassium phosphate, sodium sulfate, sodium chloride, sodium bromide, sodium nitrate, sodium phosphate, guanidine thiocyanate, xylose, glycerol, benzyl alcohol, ethyl acetate, triton X-100, ethyl acetate, cetyltrimethylammonium halide, acetone, sodium dodecyl sulfate (SDS), hydrochloric acid,
• the protein is denatured with a chaotropic agent so that 20 wt. % to 100 wt.% preferably 40 wt. % to 100 wt. %, more preferably 60 wt.% to 100 wt.%, most preferably 90 wt.% to 100 wt.% of the protein used in the preparation of the microcapsules is denatured.
• the protein used in the microcapsule can also be derivatized or modified (e.g., derivatized or chemically modified).
• the protein can be modified by covalently attaching sugars, lipids, cofactors, peptides, or other chemical groups including phosphate, acetate, methyl, and other natural or unnatural molecule.
• suitable starches include starch from: wheat, potatoes, corn, rice, tapioca and oats, modified starch, and starch derivatives, e.g., dextrins or maltodextrins, in particular dextrins and maltodextrins from wheat, potatoes, corn, rice, pea, chickpea and oats, oligosaccharides, in particular oligofructose.
• Preferred starches are selected from: corn starch, potato starch, rye starch, wheat starch, barley starch, oat starch, rice starch, pea starch, chickpea starch, tapioca starch, and mixtures thereof.
• Suitable sugar alcohols include: sorbitol, mannitol, isomalt, maltitol, maltilol syrup, lactitol, xylitol, erythritol.
• microcapsules as described herein may optionally comprise additional polymers in the microcapsule walls.
• additional polymers may include: a sol-gel polymer (e.g., silica), polyacrylate, polyacrylamide, poly(acrylate-co-acrylamide), polyurea, polyurethane, starch, gelatin and gum Arabic, poly(melamine-formaldehyde), poly(urea-formaldehyde), and combinations thereof.
• a sol-gel polymer e.g., silica
• polyacrylate e.g., polyacrylamide, poly(acrylate-co-acrylamide), polyurea, polyurethane, starch, gelatin and gum Arabic
• poly(melamine-formaldehyde) poly(urea-formaldehyde)
• the microcapsule wall polymers consist essentially of proteins, polysaccharides, or combinations thereof.
• the microcapsule may optionally comprise a further crosslinking agents.
• the further crosslinking agent maybe selected from the group consisting of isocyanates, internal crosslinking, transglutaminase, peroxidase, secondary plant substances selected from the group consisting of polyphenols, in particular tannin, gallic acid, ferulic acid, hesperidin, cinnamaldehyde, vanillin, carvacrol, and mixtures of two or more of the aforementioned crosslinking agents.
• the core may also be referred to as the internal phase.
• the core of the microcapsule comprises active material and optionally further comprises solvents, crosslinking agents as described above, or combinations thereof.
• the core is preferably non-aqueous.
• the internal non-aqueous phase may preferably comprise from 20 to 80 wt. %, preferably from 25 to 75 wt.% and even more preferably from 33 to 50 wt.% active material to be encapsulated and preferably from 0.1 to 5 wt.%, preferably from 0.15 to 3.5 wt.% and even more preferably from 0.5 to 2.5 wt.% crosslinking agent and the remaining composition solvent.
• Exemplary active materials include: fragrance; malodour agents for example: uncomplexed cyclodextrin, odor blockers, reactive aldehydes, flavonoids, zeolites, activated carbon, and mixtures thereof; dye transfer inhibitors; shading dyes; silicone oils, resins, and modifications thereof such as linear and cyclic polydimethylsiloxanes, amino-modified, allcyl, aryl, and alkylaryl silicone oils, which preferably have a viscosity of greater than 50,000 cst; insect repellents; organic sunscreen actives, for example, octylmethoxy cinnamate; antimicrobial agents, for example, 2-hydroxy-4, 2,4- trichlorodiphenylether; ester solvents, for example isopropyl myristate; lipids and lipid like substance, for example, cholesterol; hydrocarbons such as paraffins, petrolatum, and mineral oil; fish and vegetable oils; hydrophobic plant extracts; waxes;
• the benefit agents may be dissolved in a solvent.
• suitable solvents include vegetable oils, glycerides, esters of fatty acids and branched alcohols, hydrocarbon, etc. specific examples include: diethyl phthalate, isopropyl myristate, Abalyn® (rosin resins, available from Eastman), benzyl benzoate, ethyl citrate, limonene or other terpenes, triacetin or isoparaffins, preferably Abalyn®, benzyl benzoate, limonene or other terpenes, isoparaffins, or combinations thereof.
• the solvent is 0 to 30 wt.% of the active material, more preferably 0 to 20 wt.% and most preferably 0 to 10 wt.% of the active material.
• the active material comprises fragrance.
• perfume components are well known in the art.
• Useful perfume components may include materials of both natural and synthetic origin. They include single compounds and mixtures. Specific examples of such components may be found in the current literature, e.g., in Fenaroli's Handbook of Flavor Ingredients, 1975, CRC Press; Synthetic Food Adjuncts, 1947 by M. B. Jacobs, edited by Van Nostrand; or Perfume and Flavor Chemicals by S. Arctander 1969, Montclair, N.J. (USA). These substances are well known to the person skilled in the art of perfuming, flavouring, and/or aromatizing consumer products.
• Particularly preferred perfume components are blooming perfume components and substantive perfume components.
• Blooming perfume components are defined by a boiling point less than 250°C and a LogP greater than 2.5.
• encapsulated perfume compositions comprise at least 20 wt.% blooming perfume ingredients, more preferably at least 30 wt.% and most preferably at least 40 wt.% blooming perfume ingredients.
• Substantive perfume components are defined by a boiling point greater than 250°C and a LogP greater than 2.5.
• encapsulated perfume compositions comprises at least 10 wt.% substantive perfume ingredients, more preferably at least 20 wt.% and most preferably at least 30 wt.% substantive perfume ingredients. Boiling point is measured at standard pressure (760 mm Hg).
• a perfume composition will comprise a mixture of blooming and substantive perfume components.
• the perfume composition may comprise other perfume components.
• the amount of encapsulated active material is from 5 wt.% to 95 wt.%, preferably 10 wt.% to 90 wt.% more preferably 15 wt.% to 85 wt.%, and most 20 wt.% to 80 wt.% by weight of the microcapsule.
• the microcapsule composition may comprise further ingredients.
• a preferred further ingredient are polyphenols. Particularly preferred are phenols having a 3,4,5-trihydroxyphenyl group or 3,4-dihydroxypheny group such as tannic acid.
• other polyols can also be used to prepare the microcapsule compositions of this invention.
• Examples include pentaerythritol, dipentaerythritol, glycerol, polyglycerol, ethylene glycol, polyethylene glycol, trimethylolpropane, neopentyl glycol, sorbitol, erythritol, threitol, arabitol, xylitol, ribitol, mannitol, galactitol, fucitol, iditol, inositol, volemitol, isomalt, maltitol, lactitol, maltotriitol, maltotetraitol, polyglycitol, polyphenol, and combinations thereof.
• Polyphenols, polyols, and multi-functional aldehydes are preferably present at a level of 0 wt.% to 40 wt.%, preferably 1 wt.% to 35 wt.% more preferably 5 wt.% to 35 wt.% and most preferably 10 wt.% to 30 wt.%.
• microcapsules described herein preferably have a diameter of 0.1 microns to 1000 microns, more preferably 0.5 microns to 500 microns, even more preferably 1 micron to 200 microns, and most preferably 1 micron to 100 microns.
• the microcapsules can be positively or negatively charged with a zeta potential of preferably - 200 mV to +200 mV, more preferably 25 mV to 200 mV, and most preferably 40 mV to 100 mV.
• a zeta potential is a measurement of electrokinetic potential in the microcapsule. From a theoretical viewpoint, zeta potential is the potential difference between the water phase (/. E. , the dispersion medium) and the stationary layer of water attached to the surface of the microcapsule. The zeta potential can be calculated using theoretical models and an experimentally-determined electrophoretic mobility or dynamic electrophoretic mobility.
• the zeta potential is conventionally measured by methods such as microelectrophoresis, or electrophoretic light scattering, or electroacoustic phenomena.
• microelectrophoresis or electrophoretic light scattering, or electroacoustic phenomena.
• electrophoretic light scattering or electroacoustic phenomena.
• the purification of the capsules includes the additional step of adding a salt to the capsule suspension prior to the step of washing the capsule suspension with water.
• a salt for use in this step of the invention include, but are not limited to, sodium chloride, potassium chloride or bi-sulphite salts. See US 2014/0017287.
• a stabiliser may also be present.
• a stabiliser maybe be selected from acrylic co-polymers, preferably with sulphonate groups, copolymers of acrylamides and acrylic acid, copolymers of alkyl acrylates and N-vinylpyrrolidone, such as LUVISKOL® K15, K30 or K90 (BASF); sodium polycarboxylates, sodium polystyrene sulfonates, vinyl and methyl vinyl ether-maleic acid anhydride copolymers as well as ethylene, isobutylene or styrene-maleic acid anhydride copolymers, microcrystalline cellulose, which is commercially available, for example, under the name VIVAPUR®, diutan gum, xanthan gum or carboxymethyl celluloses.
• the crosslinking of the microcapsule preferably involves a catalyst.
• the catalyst may be present in the microcapsule core active material or added separately to the oil-in-water emulsion or dispersion.
• a preferred catalyst for the formation of microcapsules according to the present invention is diazabicyclo[2.2.2]octane (DABCO), also known as triethylenediamine (TEDA).
• DABCO diazabicyclo[2.2.2]octane
• TAA triethylenediamine
• the formation of the microcapsules may be catalyst by heating the oil-in-water emulsion or dispersion. For example, heating to a temperature range of a temperature in the range of 60 °C to 90 °C.
• microcapsules suitable for use in the present invention may be implemented to produce the microcapsules suitable for use in the present invention.
• interfacial polymerization involves the steps of:
• Emulsifying or dispersing the microcapsule core materials with the microcapsule wall materials Preferably in a ratio of from 70 : 30 to 60 : 40, preferably in a range from 30 : 70 to 60 : 40.
• an emulsifier may be used. Emulsification may be achieved by use of high-speed mixing. After completion of this stage, an oil-in-water emulsion or dispersion is present in which the internal phase with the active materials to be encapsulated is finely emulsified or dispersed in the external wall material phase in the form of droplets;
• Liquid and powder detergents are cleaning compositions intended for use in the wash stage of the laundry process.
• Detergents comprise anionic and or non-ionic surfactants for cleaning fabrics.
• liquid detergents comprise at least 3%, preferably from 5 to 60%, and more preferably from 6 to 50% (by weight based on the total weight of the composition) of one or more anionic and/or non-ionic surfactants.
• Preferred carrier materials may be selected from the group consisting of synthetic polymers (e g, polyethylene glycol, ethylene oxide/propylene oxide block copolymers, polyvinyl alcohol, polyvinyl acetate, and derivatives thereof), polysaccharides (e.g., starch, xanthan gum, cellulose, or derivatives thereof), saccharides (e.g, dextrose, fructose, galactose, glucose, isoglucose, sucrose), vegetable soap (e.g.
• synthetic polymers e g, polyethylene glycol, ethylene oxide/propylene oxide block copolymers, polyvinyl alcohol, polyvinyl acetate, and derivatives thereof
• polysaccharides e.g., starch, xanthan gum, cellulose, or derivatives thereof
• saccharides e.g, dextrose, fructose, galactose, glucose, isoglucose, sucrose
• vegetable soap e.g.

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• Chemical & Material Sciences (AREA)
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• Engineering & Computer Science (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Organic Chemistry (AREA)
• Health & Medical Sciences (AREA)
• Dispersion Chemistry (AREA)
• Molecular Biology (AREA)
• Emergency Medicine (AREA)
• Detergent Compositions (AREA)

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• 2023
  • 2023-05-22 CN CN202380043945.9A patent/CN119301228A/zh active Pending
  • 2023-05-22 WO PCT/EP2023/063566 patent/WO2023232513A1/en not_active Ceased
  • 2023-05-22 EP EP23727587.0A patent/EP4532656A1/de active Pending

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