US20150099680A1 - Benefit agent containing delivery particle - Google Patents

Benefit agent containing delivery particle Download PDF

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Publication number
US20150099680A1
US20150099680A1 US14/504,448 US201414504448A US2015099680A1 US 20150099680 A1 US20150099680 A1 US 20150099680A1 US 201414504448 A US201414504448 A US 201414504448A US 2015099680 A1 US2015099680 A1 US 2015099680A1
Authority
US
United States
Prior art keywords
composition
perfume
acrylate
mixtures
polyvinyl
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.)
Abandoned
Application number
US14/504,448
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English (en)
Inventor
Johan Smets
An Pintens
Laura Orlandini
Sandra Jacqueline Guinebretiere
Peggy Dorothy Sands
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.)
Procter and Gamble Co
Original Assignee
Procter and Gamble Co
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 Procter and Gamble Co filed Critical Procter and Gamble Co
Priority to US14/504,448 priority Critical patent/US20150099680A1/en
Assigned to THE PROCTER & GAMBLE COMPANY reassignment THE PROCTER & GAMBLE COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Orlandini, Laura (NMN), Smets, Johan (NMN), APPVION, INC., GUINEBRETIERE, SANDRA JACQUELINE, SANDS, PEGGY DOROTHY, PINTENS, AN (NMN)
Publication of US20150099680A1 publication Critical patent/US20150099680A1/en
Priority to US15/267,185 priority patent/US10881593B2/en
Abandoned legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/11—Encapsulated compositions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • A61K8/8141—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • A61K8/8152—Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • A61K8/8164—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical, and containing at least one other carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers, e.g. poly (methyl vinyl ether-co-maleic anhydride)
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q13/00—Formulations or additives for perfume preparations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q15/00—Anti-perspirants or body deodorants
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • A61Q19/007—Preparations for dry skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00—Preparations for care of the hair
    • A61Q5/02—Preparations for cleaning the hair
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00—Preparations for care of the hair
    • A61Q5/12—Preparations containing hair conditioners
    • 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
    • C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap 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
    • C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
    • C11D17/0017—Multi-phase liquid 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
    • 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
    • C11D17/042—Water soluble or water disintegrable containers or substrates containing cleaning compositions or additives for cleaning 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
    • C11D17/06—Powder; Flakes; Free-flowing mixtures; Sheets
    • 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
    • C11D17/08—Liquid soap, e.g. for dispensers; capsuled
    • 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
    • C11D3/37—Polymers
    • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/373—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicones
    • 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
    • C11D3/37—Polymers
    • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
    • C11D3/3761—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in solid 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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/50—Perfumes
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/54—Polymers characterized by specific structures/properties
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/59—Mixtures
    • A61K2800/591—Mixtures of compounds not provided for by any of the codes A61K2800/592 - A61K2800/596
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/60—Particulates further characterized by their structure or composition
    • A61K2800/61—Surface treated
    • A61K2800/62—Coated
    • A61K2800/624—Coated by macromolecular compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/60—Particulates further characterized by their structure or composition
    • A61K2800/65—Characterized by the composition of the particulate/core
    • A61K2800/652—The particulate/core comprising organic 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
    • 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 application relates to benefit agent containing delivery particles, compositions comprising such particles, and processes for making and using such particles and compositions.
  • Benefit agents such as perfumes, silicones, waxes, flavors, vitamins and fabric softening agents, are expensive and/or generally less effective when employed at high levels in consumer products, for example, personal care compositions, cleaning compositions, and fabric care compositions. As a result, there is a desire to maximize the effectiveness of such benefit agents.
  • One method of achieving such objective is to improve the delivery efficiencies of such benefit agents.
  • it is difficult to improve the delivery efficiencies of benefit agents as such agents may be lost due to the agents' physical or chemical characteristics, or such agents may be incompatible with other compositional components or the situs that is treated.
  • benefit agents have been encapsulated. Unfortunately, encapsulated benefit agents leak benefit agent over time, possibly via diffusion.
  • encapsulate's crosslink density While not being bound by theory, Applicants believe that as the shell crosslink density increases, the encapsulate's rigidity increases due to a loss of the shell's degrees of freedom and the encapsulate's benefit agent leakage decreases as the pathway through the shell is more tortuous. Thus, Applicant's recognized that, to exhibit low leakage and sustained release, an encapsulate requires a high number of flexible/weak shell cross links. Such an encapsulate can, among other benefits, provide increased wet fabric odor benefits.
  • the present invention relates to benefit agent containing delivery particles comprising a core material and a wall material that encapsulates the core material.
  • the present invention also relates to compositions comprising said particles, and processes for making and using such particles and compositions.
  • consumer product means baby care, beauty care, fabric & home care, family care, feminine care, health care, snack and/or beverage products or devices intended to be used or consumed in the form in which it is sold, and not intended for subsequent commercial manufacture or modification.
  • Such products include but are not limited to fine fragrance (e.g.
  • cleaning composition includes, unless otherwise indicated, granular or powder-form all-purpose or “heavy-duty” washing agents, especially cleaning detergents; liquid, gel or paste-form all-purpose washing agents, especially the so-called heavy-duty liquid types; liquid fine-fabric detergents; hand dishwashing agents or light duty dishwashing agents, especially those of the high-foaming type; machine dishwashing agents, including the various tablet, granular, liquid and rinse-aid types for household and institutional use; liquid cleaning and disinfecting agents, including antibacterial hand-wash types, cleaning bars, mouthwashes, denture cleaners, dentifrice, car or carpet shampoos, bathroom cleaners; hair shampoos and hair-rinses; shower gels and foam baths and metal cleaners; as well as cleaning auxiliaries such as bleach additives and “stain-stick” or pre-treat types, substrate-laden products such as dryer added sheets, dry and wetted wipes and pads, nonwoven substrates, and sponges; as well as sprays and mis
  • fabric care composition includes, unless otherwise indicated, fabric softening compositions, fabric enhancing compositions, fabric freshening compositions and combinations thereof.
  • the phrase “benefit agent containing delivery particle” encompasses microcapsules including perfume microcapsules.
  • particle As used herein, the terms “particle”, “benefit agent containing delivery particle”, “capsule” and “microcapsule” are synonymous.
  • (meth)acrylate or “(meth)acrylic” is to be understood as referring to both the acrylate and the methacrylate versions of the specified monomer, oligomer and/or prepolymer, (for example “allyl (meth)acrylate” indicates that both allyl methacrylate and allyl acrylate are possible, similarly reference to alkyl esters of (meth)acrylic acid indicates that both alkyl esters of acrylic acid and alkyl esters of methacrylic acid are possible, similarly poly(meth)acrylate indicates that both polyacrylate and polymethacrylate are possible).
  • Poly(meth)acrylate materials are intended to encompass a broad spectrum of polymeric materials including, for example, polyester poly(meth)acrylates, urethane and polyurethane poly(meth)acrylates (especially those prepared by the reaction of an hydroxyalkyl (meth)acrylate with a polyisocyanate or a urethane polyisocyanate), methylcyanoacrylate, ethylcyanoacrylate, diethyleneglycol di(meth)acrylate, trimethylolpropane tri(meth)acrylate, ethylene glycol di(meth)acrylate, allyl (meth)acrylate, glycidyl (meth)acrylate, (meth)acrylate functional silicones, di-, tri- and tetraethylene glycol di(meth)acrylate, dipropylene glycol di(meth)acrylate, polyethylene glycol di(meth)acrylate, di(pentamethylene glycol) di(meth)acrylate, ethylene di(meth)acrylate
  • Monofunctional acrylates i.e., those containing only one acrylate group, may also be advantageously used.
  • Typical monoacrylates include 2-ethylhexyl (meth)acrylate, 2-hydroxyethyl (meth)acrylate, cyanoethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, p-dimethylaminoethyl (meth)acrylate, lauryl (meth)acrylate, cyclohexyl (meth)acrylate, tetrahydrofurfuryl (meth)acrylate, chlorobenzyl (meth)acrylate, aminoalkyl(meth)acrylate, various alkyl(meth)acrylates and glycidyl (meth)acrylate.
  • styrene maleic anhydride copolymer is synonymous with Poly(Styrene-Co-maleic anhydride).
  • test methods disclosed in the Test Methods Section of the present application should be used to determine the respective values of the parameters of Applicants' inventions.
  • component or composition levels are in reference to the active portion of that component or composition, and are exclusive of impurities, for example, residual solvents or by-products, which may be present in commercially available sources of such components or compositions.
  • benefit agent delivery particles comprise a core and a shell, said shell encapsulating said core, said shell comprising:
  • said benefit agent delivery particles' styrene maleic anhydride monomethylmaleate component has a hydrolysis degree of from about 20% to about 95%, preferably from about 25% to about 80%, more preferably from about 30% to about 70%, most preferably from about 40% to about 60%.
  • benefit agent delivery particles comprise a core and a shell, said shell encapsulating said core, said shell comprising:
  • the above-described benefit agent delivery particles have a mean particle size of from about 1 micrometers to about 100 micrometers, from about 5 micrometers to about 80 micrometers or 8 micrometers to about 50 micrometers at least 75% of said benefit agent delivery particles having a fracture strength of from about 0.2 MPa to about 10 MPa; and said particles having a benefit agent leakage of from 0% to about 30%.
  • the benefit agent delivery particles has a mean particle size of from about 1 micrometers to about 100 micrometers, from about 5 micrometers to about 80 micrometers or 8 micrometers to about 50 micrometers at least 75% of said benefit agent delivery particles having a benefit agent leakage of from 0% to about 30%.
  • the above-described benefit agent delivery particles at least 75% of said benefit agent delivery particles have a particle size of from about 1 micrometers to about 80 micrometers.
  • At least 75% of said benefit agent delivery particles have a particle wall thickness of from about 10 nm to about 250 nm, from about 20 nm to about 200 nm, or from 25 nm to about 180 nm.
  • the above-described benefit agent delivery particles have a shell which comprises an aminoplast polymer, in one aspect, said shell comprises from about 50% to about 100%, from about 70% to about 100% or even from about 80% to about 100% of said aminoplast polymer.
  • the above-described benefit agent delivery particles have a shell wherein said shell comprises an aminoplast polymer comprising a material selected from the group consisting of a resin of melamine and formaldehyde, a mixed resin of urea-formaldehyde, maleic anhydride copolymers, a melamine resin and mixtures thereof.
  • the above-described benefit agent delivery particles have a shell wherein said shell comprises a polyacrylate in one aspect, said shell comprises from about 50% to about 100%, from about 70% to about 100% or even from about 80% to about 100% of said polyacrylate polymer, in one aspect said polyacrylate comprises a polyacrylate cross polymer.
  • the aforementioned benefit agent delivery particles have a shell wherein said shell comprises a polyacrylate that comprises a material selected from the group consisting of an amine acrylate, methacrylate monomer, a carboxylic acid acrylate, carboxylic acid methacrylate monomer and mixtures thereof.
  • the above-described benefit agent delivery particles comprise a deposition aid, and in a further aspect the benefit agent delivery partial deposition aid coats the outer surface of said shell.
  • the above-described benefit agent delivery particles comprise a deposition aid and said deposition aid comprises a material selected from the group consisting of poly(meth)acrylate, poly(ethylene-maleic anhydride), polyamine, wax, polyvinylpyrrolidone, polyvinylpyrrolidone co-polymers, polyvinylpyrrolidone-ethyl acrylate, polyvinylpyrrolidone-vinyl acrylate, polyvinylpyrrolidone methylacrylate, polyvinylpyrrolidone-vinyl acetate, polyvinyl acetal, polyvinyl butyral, polysiloxane, poly(propylene maleic anhydride), maleic anhydride derivatives, co-polymers of maleic anhydride derivatives, polyvinyl alcohol, styrene-butadiene latex, gelatin, gum Arabic, carboxymethyl cellulose, carboxymethyl hydroxyethyl cellulose, hydroxyethyl cellulose,
  • said benefit agent delivery particles comprise a deposition aid and said deposition aid comprises a material selected from the group consisting of poly(meth)acrylates, poly(ethylene-maleic anhydride), polyamine, polyvinylpyrrolidone, polyvinylpyrrolidone-ethyl acrylate, polyvinylpyrrolidone-vinyl acrylate, polyvinylpyrrolidone methylacrylate, polyvinylpyrrolidone-vinyl acetate, polyvinyl acetal, polyvinyl butyral, polysiloxane, poly(propylene maleic anhydride), maleic anhydride derivatives, co-polymers of maleic anhydride derivatives, polyvinyl alcohol, carboxymethyl cellulose, carboxymethyl hydroxyethyl cellulose, hydroxyethyl cellulose, polyvinyl methyl ether/maleic anhydride, poly(vinyl pyrrolidone/methacrylamidopropyl
  • the aforementioned benefit agent delivery particles comprise a deposition aid wherein said deposition aid comprises a material selected from the group consisting of poly(meth)acrylates, poly(ethylene-maleic anhydride), polyamine, polyvinylpyrrolidone, polyvinylpyrrolidone-ethyl acrylate, polyvinylpyrrolidone-vinyl acrylate, polyvinylpyrrolidone methylacrylate, polyvinylpyrrolidone-vinyl acetate, polyvinyl acetal, polysiloxane, poly(propylene maleic anhydride), maleic anhydride derivatives, co-polymers of maleic anhydride derivatives, polyvinyl alcohol, carboxymethyl cellulose, carboxymethyl hydroxyethyl cellulose, hydroxyethyl cellulose, polyvinyl methyl ether/maleic anhydride, polyvinylpyrrolidone/vinyl acetate, polyvinyl pyrrol
  • the above-described benefit agent delivery particles have a core wherein said benefit agent delivery particles' core material comprises a suds suppressor material selected from the group consisting of silicone oils, silicone resins, silicone polymers, silica and mixtures thereof.
  • the benefit agent delivery particles have a core wherein said benefit agent delivery particles' core material comprises, based on total benefit agent delivery particle weight, at least about 20 wt %, from about 20% to about 99%, from about 70% to about 98%, from about 85% to about 96% benefit agent.
  • the benefit agent delivery particles have a core wherein said benefit agent delivery particles' core material comprises:
  • the aforementioned benefit agent delivery particles comprise a material selected from the group consisting of a formaldehyde scavenger, a structurant, an anti-agglomeration agent and mixtures thereof.
  • the above-described benefit agent delivery particles of claim 2 comprising less than 150 ppm, less than 100 ppm, less than 50 ppm, less than 10 ppm, less than 5 ppm or even less than 1 ppm formaldehyde.
  • the benefit agent delivery particles have a viscosity of from 1 to 1500 centipoises (1-1500 mPa*s), from 100 to 1000 centipoises (100-1000 mPa*s), or from 200 to 500 centipoises (200-500 mPa*s) at 20 s ⁇ 1 and 21° C.
  • benefit agent delivery particle is produced by the process of:
  • said non-esterified styrene maleic-anhydride copolymer comprises styrene maleic anhydride monomethylmaleate, sodium salt.
  • a reaction product of an aldehyde with an amine
  • said amine is selected from the group consisting of melamine, urea, benzoguanamine, glycoluril, and mixtures thereof.
  • a benefit agent delivery particle is produced by the process of:
  • the aforementioned benefit agent delivery particles have a zeta potential of from about ⁇ 10 mV to about +50 mV, from about +2 mV to about +40 mV, or from about +5 mV to about +25 mV.
  • compositions Comprising Particles
  • composition a comprising a consumer product adjunct material and benefit agent delivery particles comprising a core and a shell, said shell encapsulating said core, said shell comprising:
  • said composition comprises:
  • said benefit agent delivery particles have a mean particle size of from about 1 micrometers to about 100 micrometers, from about 5 micrometers to about 80 micrometers or 8 micrometers to about 50 micrometers at least 75% of said benefit agent delivery particles having a fracture strength of from about 0.2 MPa to about 10 MPa; and, in one aspect, said particles having a benefit agent leakage of from 0% to about 30%.
  • said benefit agent delivery particles have a mean particle size of from about 1 micrometers to about 100 micrometers, from about 5 micrometers to about 80 micrometers or 8 micrometers to about 50 micrometers and, in one aspect, at least 75% of said benefit agent delivery particles have a benefit agent leakage of from 0% to about 30%.
  • said shell comprises an aminoplast polymer, in one aspect, said shell comprises from about 50% to about 100%, from about 70% to about 100% or even from about 80% to about 100% of said aminoplast polymer.
  • said shell comprises an aminoplast polymer comprising a material selected from the group consisting of a resin of melamine and formaldehyde, a mixed resin of urea-formaldehyde, maleic anhydride copolymers, a melamine resin and mixtures thereof.
  • said shell comprises a polyacrylate, in one aspect, said shell comprises from about 50% to about 100%, from about 70% to about 100% or even from about 80% to about 100% of said polyacrylate polymer, in one aspect said polyacrylate comprises a polyacrylate cross polymer.
  • said shell comprises a polyacrylate that comprises a material selected from the group consisting of an amine acrylate, methacrylate monomer, a carboxylic acid acrylate, carboxylic acid methacrylate monomer and mixtures thereof.
  • said composition comprises a deposition aid.
  • said deposition aid coats the outer surface of said shell.
  • said deposition aid comprises a material selected from the group consisting of poly(meth)acrylate, poly(ethylene-maleic anhydride), polyamine, wax, polyvinylpyrrolidone, polyvinylpyrrolidone co-polymers, polyvinylpyrrolidone-ethyl acrylate, polyvinylpyrrolidone-vinyl acrylate, polyvinylpyrrolidone methylacrylate, polyvinylpyrrolidone/vinyl acetate, polyvinyl acetal, polyvinyl butyral, polysiloxane, poly(propylene maleic anhydride), maleic anhydride derivatives, co-polymers of maleic anhydride derivatives, polyvinyl alcohol, styrene-butadiene latex, gelatin, gum Arabic, carboxymethyl cellulose, carboxymethyl hydroxyethyl cellulose, hydroxyethyl cellulose, other modified celluloses, sodium alginate
  • said deposition aid comprises a material selected from the group consisting of poly(meth)acrylates, poly(ethylene-maleic anhydride), polyamine, polyvinylpyrrolidone, polyvinylpyrrolidone-ethyl acrylate, polyvinylpyrrolidone-vinyl acrylate, polyvinylpyrrolidone methylacrylate, polyvinylpyrrolidone/vinyl acetate, polyvinyl acetal, polyvinyl butyral, polysiloxane, poly(propylene maleic anhydride), maleic anhydride derivatives, co-polymers of maleic anhydride derivatives, polyvinyl alcohol, carboxymethyl cellulose, carboxymethyl hydroxyethyl cellulose, hydroxyethyl cellulose, polyvinyl methyl ether/maleic anhydride, poly(vinyl pyrrolidone/methacrylamidopropyl trimethyl ammonium chloride), polyvinyl alcohol, carboxymethyl
  • said deposition aid comprises a material selected from the group consisting of poly(meth)acrylates, poly(ethylene-maleic anhydride), polyamine, polyvinylpyrrolidone, polyvinylpyrrolidone-ethyl acrylate, polyvinylpyrrolidone-vinyl acrylate, polyvinylpyrrolidone methylacrylate, polyvinylpyrrolidone/vinyl acetate, polyvinyl acetal, polysiloxane, polypropylene maleic anhydride), maleic anhydride derivatives, co-polymers of maleic anhydride derivatives, polyvinyl alcohol, carboxymethyl cellulose, carboxymethyl hydroxyethyl cellulose, hydroxyethyl cellulose, polyvinyl methyl ether/maleic anhydride, polyvinylpyrrolidone/vinyl acetate, polyvinyl pyrrolidone/dimethylaminoethyl methacryl
  • At least 75% of said benefit agent delivery particles have a particle size of from about 1 micrometers to about 80 micrometers.
  • At least 75% of said benefit agent delivery particles have a particle wall thickness of from about 10 nm to about 250 nm, from about 20 nm to about 200 nm, or from 25 nm to about 180 nm.
  • said benefit agent delivery particles' core material comprises a suds suppressor material selected from the group consisting of silicone oils, silicone resins, silicone polymers, silica and mixtures thereof.
  • said benefit agent delivery particles' core material comprises, based on total benefit agent delivery particle weight, at least about 20 wt %, from about 20% to about 99%, from about 70% to about 98%, from about 85% to about 96% benefit agent.
  • said benefit agent delivery particles' core material comprises:
  • said composition comprises a material selected from the group consisting of a formaldehyde scavenger, a structurant, an anti-agglomeration agent and mixtures thereof.
  • said composition comprises less than 150 ppm, less than 100 ppm, less than 50 ppm, less than 10 ppm, less than 5 ppm or even less than 1 ppm formaldehyde.
  • said composition has a viscosity of from 1 to 1500 centipoises (1-1500 mPa*s), from 100 to 1000 centipoises (100-1000 mPa*s), or from 200 to 500 centipoises (200-500 mPa*s) at 20 s ⁇ 1 and 21° C.
  • the rheology described therein may be achieved using internal existing structuring with detergent ingredients or by employing an external rheology modifier.
  • Laundry care compositions, such as detergent liquid compositions typically have a high shear rate viscosity of from about 100 centipoise to 1500 centipoise, or from 100 cps to 1000 cps.
  • laundry care compositions such as detergent liquid compositions typically have high shear rate viscosity of from 400 cps to 1000 cps.
  • Laundry care compositions such as laundry softening compositions typically have high shear rate viscosity of from 10 cps to 1000 cps, from 10 cps to 800 cps or from 10 cps to 500 cps.
  • Hand dishwashing compositions typically have high shear rate viscosity of from 300 cps to 4000 cps, or 300 cps to 1000 cps.
  • said composition comprises from about 0.001% to about 25%, based on total consumer product mass weight of said benefit agent delivery particles.
  • said composition comprises a structurant, said structurant comprising a material selected from the group consisting of polysaccharides, modified celluloses, modified proteins, inorganic salts, quaternized polymeric materials, imidazoles; nonionic polymers having a pKa less than 6.0, polyurethanes, bacterial cellulose, coated bacterial cellulose, non-polymeric crystalline hydroxyl-functional materials, polymeric structuring agents, di-amido gellants and mixtures thereof.
  • a structurant comprising a material selected from the group consisting of polysaccharides, modified celluloses, modified proteins, inorganic salts, quaternized polymeric materials, imidazoles; nonionic polymers having a pKa less than 6.0, polyurethanes, bacterial cellulose, coated bacterial cellulose, non-polymeric crystalline hydroxyl-functional materials, polymeric structuring agents, di-amido gellants and mixtures thereof.
  • said benefit agent delivery particle has a zeta potential of from about ⁇ 10 mV to about +50 mV, from about +2 mV to about +40 mV, or from about +5 mV to about +25 mV.
  • composition comprising a consumer adjunct material and benefit agent delivery particle produced by the process of:
  • said non-esterified styrene maleic-anhydride copolymer comprises styrene maleic anhydride monomethylmaleate, sodium salt.
  • said resin material comprises a reaction product of an aldehyde, with an amine, amine is selected from the group consisting of melamine, urea, benzoguanamine, glycoluril, and mixtures thereof.
  • composition comprising a consumer adjunct material and benefit agent delivery particle produced by the process of:
  • compositions comprise any embodiment of the particle disclosed in the present application—including any embodiment produced by the benefit agent delivery making process detailed in the present specification.
  • said composition is a consumer product. While the precise level of particle that is employed depends on the type and end use of the composition, a composition may comprise from about 0.01 to about 10, from about 0.1 to about 10, or even from about 0.2 to about 5 weight % of said particle based on total composition weight.
  • a consumer product comprising from about 0.001% to about 25%, from about 0.001% to about 10%, or from about 0.01% to about 3%, based on total consumer product mass weight, of the aforementioned benefit agent delivery particles is disclosed.
  • a cleaning composition comprising from about 0.005% to about 10%, from about 0.01% to about 3%, or from about 0.1% to about 1% based on total cleaning composition mass weight of the aforementioned benefit agent delivery particles is disclosed.
  • a fabric care composition comprising from about 0.005% to about 10%, from about 0.01% to about 3%, or from about 0.1% to about 1% based on total fabric care mass weight of the aforementioned benefit agent delivery particle composition is disclosed.
  • the particle composition when the aforementioned particle composition is employed in a consumer product, for example a liquid consumer product, the particle composition may have a deposition of at least 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, or even 100%.
  • the particle composition when the aforementioned particle composition is employed in a consumer product, for example a liquid consumer product, the particle composition may have less than 50%, 40%, 30%, 20%, 10% or even 0% leakage of the encapsulated benefit agent from the microcapsules of said particle composition into said consumer product.
  • a cleaning composition may comprise, from about 0.1 to about 1 weight % of such particle based on total cleaning composition weight of such particle.
  • a fabric treatment composition may comprise, based on total fabric treatment composition weight, from about 0.01 to about 10% of such particle.
  • said benefit agent delivery particles may have any combination of the aforementioned parameters as listed in the aforementioned aspects.
  • Suitable materials for making may be supplied from one or more of the following companies Firmenich (Geneva, Switzerland), Givaudan (Argenteuil, France), IFF (Hazlet, N.J., U.S.A), Quest (Mount Olive, N.J., U.S.A.), Bedoukian (Danbury, Conn., U.S.A.), Sigma Aldrich (St.
  • compositions disclosed herein can be made by combining the particles disclosed herein with the desired consumer product adjuncts materials.
  • the particles may be combined with such one or more consumer product adjuncts materials when the particles are in one or more forms, including a slurry form, neat particle form and spray dried particle form.
  • the particles may be combined with such consumer product adjuncts materials by methods that include mixing and/or spraying.
  • the cleaning and/or treatment compositions of the present invention can be formulated into any suitable form and prepared by any process chosen by the formulator, non-limiting examples of which are described in U.S. Pat. No. 5,879,584 which is incorporated herein by reference.
  • Suitable equipment for use in the processes disclosed herein may include continuous stirred tank reactors, homogenizers, turbine agitators, recirculating pumps, paddle mixers, plough shear mixers, ribbon blenders, vertical axis granulators and drum mixers, both in batch and, where available, in continuous process configurations, spray dryers, and extruders.
  • Such equipment can be obtained from Lödige GmbH (Paderborn, Germany), Littleford Day, Inc. (Florence, Ky., U.S.A.), Forberg AS (Larvik, Norway), Glatt Ingenieurtechnik GmbH (Weimar, Germany), Niro (S ⁇ borg, Denmark), Hosokawa Bepex Corp. (Minneapolis, Minn., U.S.A.), Arde Barinco (New Jersey, U.S.A.).
  • compositions may include additional adjunct ingredients that include: bleach activators, surfactants, builders, chelating agents, dye transfer inhibiting agents, dispersants, enzymes, and enzyme stabilizers, catalytic metal complexes, polymeric dispersing agents, clay and soil removal/anti-redeposition agents, brighteners, suds suppressors, dyes, additional perfumes and perfume delivery systems, structure elasticizing agents, fabric softeners, carriers, hydrotropes, processing aids, structurants, anti-agglomeration agents, coatings, formaldehyde scavengers and/or pigments.
  • additional adjunct ingredients include: bleach activators, surfactants, builders, chelating agents, dye transfer inhibiting agents, dispersants, enzymes, and enzyme stabilizers, catalytic metal complexes, polymeric dispersing agents, clay and soil removal/anti-redeposition agents, brighteners, suds suppressors, dyes, additional perfumes and perfume delivery systems, structure elasticizing agents, fabric softeners, carriers, hydrotropes, processing aid
  • compositions do not contain one or more of the following adjuncts materials: bleach activators, surfactants, builders, chelating agents, dye transfer inhibiting agents, dispersants, enzymes, and enzyme stabilizers, catalytic metal complexes, polymeric dispersing agents, clay and soil removal/anti-redeposition agents, brighteners, suds suppressors, dyes, additional perfumes and perfume delivery systems, structure elasticizing agents, fabric softeners, carriers, hydrotropes, processing aids, structurants, anti-agglomeration agents, coatings, formaldehyde scavengers and/or pigments.
  • adjuncts materials bleach activators, surfactants, builders, chelating agents, dye transfer inhibiting agents, dispersants, enzymes, and enzyme stabilizers, catalytic metal complexes, polymeric dispersing agents, clay and soil removal/anti-redeposition agents, brighteners, suds suppressors, dyes, additional perfumes and perfume delivery systems, structure elasticizing agents, fabric softeners, carriers, hydrotropes
  • adjuncts when one or more adjuncts are present, such one or more adjuncts may be present as detailed below. The following is a non-limiting list of suitable additional adjuncts.
  • the fabric treatment composition may comprise from about 0.01% to about 10%, from about 0.05 to about 5%, or from about 0.15 to about 3% of a deposition aid.
  • the deposition aid may be a cationic or amphoteric polymer.
  • the deposition aid may be a cationic polymer. Cationic polymers in general and their method of manufacture are known in the literature.
  • the cationic polymer may have a cationic charge density of from about 0.005 to about 23 meq/g, from about 0.01 to about 12 meq/g, or from about 0.1 to about 7 meq/g, at the pH of the composition.
  • charge density is measured at the intended use pH of the product. Such pH will generally range from about 2 to about 11, more generally from about 2.5 to about 9.5. Charge density is calculated by dividing the number of net charges per repeating unit by the molecular weight of the repeating unit.
  • the positive charges may be located on the backbone of the polymers and/or the side chains of polymers.
  • the deposition aid may comprise a cationic acrylic based polymer. In a further aspect, the deposition aid may comprise a cationic polyacrylamide. In another aspect, the deposition aid may comprise a polymer comprising polyacrylamide and polymethacrylamidopropyl trimethylammonium cation. In another aspect, the deposition aid may comprise poly(acrylamide-N-dimethyl aminoethyl acrylate) and its quaternized derivatives.
  • the deposition aid may be selected from the group consisting of cationic or amphoteric polysaccharides. In one aspect, the deposition aid may be selected from the group consisting of cationic and amphoteric cellulose ethers, cationic or amphoteric galactomannan, cationic guar gum, cationic or amphoteric starch, and combinations thereof
  • Suitable cationic polymers may include alkylamine-epichlorohydrin polymers which are reaction products of amines and oligoamines with epichlorohydrin.
  • suitable synthetic cationic polymers may include polyamidoamine-epichlorohydrin (PAE) resins of polyalkylenepolyamine with polycarboxylic acid. The most common PAE resins are the condensation products of diethylenetriamine with adipic acid followed by a subsequent reaction with epichlorohydrin.
  • the weight-average molecular weight of the polymer may be from about 500 Daltons to about 5,000,000 Daltons, or from about 1,000 Daltons to about 2,000,000 Daltons, or from about 2,500 Daltons to about 1,500,000 Daltons, as determined by size exclusion chromatography relative to polyethylene oxide standards with RI detection.
  • the MW of the cationic polymer may be from about 500 Daltons to about 37,500 Daltons.
  • Surfactants utilized can be of the anionic, nonionic, zwitterionic, ampholytic or cationic type or can comprise compatible mixtures of these types.
  • Anionic and nonionic surfactants are typically employed if the fabric care product is a laundry detergent.
  • cationic surfactants are typically employed if the fabric care product is a fabric softener.
  • the fabric care compositions of the present invention may further contain a nonionic surfactant.
  • the compositions of the present invention can contain up to about 30%, alternatively from about 0.01% to about 20%, more alternatively from about 0.1% to about 10%, by weight of the composition, of a nonionic surfactant.
  • the nonionic surfactant may comprise an ethoxylated nonionic surfactant.
  • ethoxylated alcohols and ethoxylated alkyl phenols of the formula R(OC 2 H 4 )n OH, wherein R is selected from the group consisting of aliphatic hydrocarbon radicals containing from about 8 to about 20 carbon atoms and alkyl phenyl radicals in which the alkyl groups contain from about 8 to about 12 carbon atoms, and the average value of n is from about 5 to about 15.
  • Suitable nonionic surfactants are those of the formula R1(OC 2 H 4 )nOH, wherein R1 is a C 10 -C 16 alkyl group or a C 8 -C 12 alkyl phenyl group, and n is from 3 to about 80.
  • particularly useful materials are condensation products of C 9 -C 15 alcohols with from about 5 to about 20 moles of ethylene oxide per mole of alcohol.
  • the fabric care compositions of the present invention may contain up to about 30%, alternatively from about 0.01% to about 20%, more alternatively from about 0.1% to about 20%, by weight of the composition, of a cationic surfactant.
  • cationic surfactants include those which can deliver fabric care benefits.
  • useful cationic surfactants include: fatty amines; quaternary ammonium surfactants; and imidazoline quat materials.
  • Non-limiting examples of fabric softening actives are N, N-bis(stearoyl-oxy-ethyl) N,N-dimethyl ammonium chloride, N,N-bis(tallowoyl-oxy-ethyl) N,N-dimethyl ammonium chloride, N,N-bis(stearoyl-oxy-ethyl)N-(2 hydroxyethyl)N-methyl ammonium methylsulfate; 1,2 di (stearoyl-oxy) 3 trimethyl ammoniumpropane chloride; dialkylenedimethylammonium salts such as dicanoladimethylammonium chloride, di(hard)tallowdimethylammonium chloride dicanoladimethylammonium methylsulfate; 1-methyl-1-stearoylamidoethyl-2-stearoylimidazolinium methylsulfate; 1-tallowylamidoethyl-2-tallowylimidazoline; N
  • compositions may also contain from about 0.1% to 80% by weight of a builder.
  • Compositions in liquid form generally contain from about 1% to 10% by weight of the builder component.
  • Compositions in granular form generally contain from about 1% to 50% by weight of the builder component.
  • Detergent builders are well known in the art and can contain, for example, phosphate salts as well as various organic and inorganic nonphosphorus builders.
  • Water-soluble, nonphosphorus organic builders useful herein include the various alkali metal, ammonium and substituted ammonium polyacetates, carboxylates, polycarboxylates and polyhydroxy sulfonates.
  • polyacetate and polycarboxylate builders are the sodium, potassium, lithium, ammonium and substituted ammonium salts of ethylene diamine tetraacetic acid, nitrilotriacetic acid, oxydisuccinic acid, mellitic acid, benzene polycarboxylic acids, and citric acid.
  • Other polycarboxylate builders are the oxydisuccinates and the ether carboxylate builder compositions comprising a combination of tartrate monosuccinate and tartrate disuccinate.
  • Builders for use in liquid detergents include citric acid.
  • Suitable nonphosphorus, inorganic builders include the silicates, aluminosilicates, borates and carbonates, such as sodium and potassium carbonate, bicarbonate, sesquicarbonate, tetraborate decahydrate, and silicates having a weight ratio of SiO2 to alkali metal oxide of from about 0.5 to about 4.0, or from about 1.0 to about 2.4. Also useful are aluminosilicates including zeolites.
  • compositions may contain from about 0.1%, to about 10%, by weight of dispersants Suitable water-soluble organic materials are the homo- or co-polymeric acids or their salts, in which the polycarboxylic acid may contain at least two carboxyl radicals separated from each other by not more than two carbon atoms.
  • the dispersants may also be alkoxylated derivatives of polyamines, and/or quaternized derivatives.
  • Enzymes The compositions may contain one or more detergent enzymes which provide cleaning performance and/or fabric care benefits.
  • suitable enzymes include hemicellulases, peroxidases, proteases, cellulases, xylanases, lipases, phospholipases, esterases, cutinases, pectinases, keratanases, reductases, oxidases, phenoloxidases, lipoxygenases, ligninases, pullulanases, tannases, pentosanases, malanases, ⁇ -glucanases, arabinosidases, hyaluronidase, chondroitinase, laccase, and amylases, or mixtures thereof.
  • a typical combination may be a cocktail of conventional applicable enzymes like protease, lipase, cutinase and/or cellulase in conjunction with amylase.
  • Enzymes can be used at their art-taught levels, for example at levels recommended by suppliers such as Novozymes and Genencor. Typical levels in the compositions are from about 0.0001% to about 5%. When enzymes are present, they can be used at very low levels, e.g., from about 0.001% or lower; or they can be used in heavier-duty laundry detergent formulations at higher levels, e.g., about 0.1% and higher.
  • the compositions may be either or both enzyme-containing and enzyme-free.
  • compositions may also include from about 0.0001%, from about 0.01%, from about 0.05% by weight of the compositions to about 10%, about 2%, or even about 1% by weight of the compositions of one or more dye transfer inhibiting agents such as polyvinylpyrrolidone polymers, polyamine N-oxide polymers, copolymers of N-vinylpyrrolidone and N-vinylimidazole, polyvinyloxazolidones and polyvinylimidazoles or mixtures thereof.
  • dye transfer inhibiting agents such as polyvinylpyrrolidone polymers, polyamine N-oxide polymers, copolymers of N-vinylpyrrolidone and N-vinylimidazole, polyvinyloxazolidones and polyvinylimidazoles or mixtures thereof.
  • compositions may contain less than about 5%, or from about 0.01% to about 3% of a chelant such as citrates; nitrogen-containing, P-free aminocarboxylates such as EDDS, EDTA and DTPA; aminophosphonates such as diethylenetriamine pentamethylenephosphonic acid and, ethylenediamine tetramethylenephosphonic acid; nitrogen-free phosphonates e.g., HEDP; and nitrogen or oxygen containing, P-free carboxylate-free chelants such as compounds of the general class of certain macrocyclic N-ligands such as those known for use in bleach catalyst systems.
  • a chelant such as citrates
  • nitrogen-containing, P-free aminocarboxylates such as EDDS, EDTA and DTPA
  • aminophosphonates such as diethylenetriamine pentamethylenephosphonic acid and, ethylenediamine tetramethylenephosphonic acid
  • nitrogen-free phosphonates e.g., HEDP
  • Brighteners The compositions may also comprise a brightener (also referred to as “optical brightener”) and may include any compound that exhibits fluorescence, including compounds that absorb UV light and reemit as “blue” visible light.
  • useful brighteners include: derivatives of stilbene or 4,4′-diaminostilbene, biphenyl, five-membered heterocycles such as triazoles, pyrazolines, oxazoles, imidiazoles, etc., or six-membered heterocycles (coumarins, naphthalamide, s-triazine, etc.).
  • Cationic, anionic, nonionic, amphoteric and zwitterionic brighteners can be used.
  • Suitable brighteners include those commercially marketed under the trade name Tinopal-UNPA-GX® by Ciba Specialty Chemicals Corporation (High Point, N.C.).
  • Bleach system Bleach systems suitable for use herein contain one or more bleaching agents.
  • suitable bleaching agents include catalytic metal complexes; activated peroxygen sources; bleach activators; bleach boosters; photobleaches; bleaching enzymes; free radical initiators; H 2 O 2 ; hypohalite bleaches; peroxygen sources, including perborate and/or percarbonate and combinations thereof.
  • Suitable bleach activators include perhydrolyzable esters and perhydrolyzable imides such as, tetraacetyl ethylene diamine, octanoylcaprolactam, benzoyloxybenzenesulphonate, nonanoyloxybenzene isulphonate, benzoylvalerolactam, dodecanoyloxybenzenesulphonate.
  • Other bleaching agents include metal complexes of transitional metals with ligands of defined stability constants.
  • compositions may contain one or more stabilizers and thickeners. Any suitable level of stabilizer may be of use; exemplary levels include from about 0.01% to about 20%, from about 0.1% to about 10%, or from about 0.1% to about 3% by weight of the composition.
  • suitable for use herein include crystalline, hydroxyl-containing stabilizing agents, trihydroxystearin, hydrogenated oil, or a variation thereof, and combinations thereof.
  • the crystalline, hydroxyl-containing stabilizing agents may be water-insoluble wax-like substances, including fatty acid, fatty ester or fatty soap.
  • the crystalline, hydroxyl-containing stabilizing agents may be derivatives of castor oil, such as hydrogenated castor oil derivatives, for example, castor wax.
  • the hydroxyl containing stabilizers are disclosed in U.S. Pat. Nos. 6,855,680 and 7,294,611.
  • Other stabilizers include thickening stabilizers such as gums and other similar polysaccharides, for example gellan gum, carrageenan gum, and other known types of thickeners and rheological additives.
  • Exemplary stabilizers in this class include gum-type polymers (e.g.
  • xanthan gum polyvinyl alcohol and derivatives thereof, cellulose and derivatives thereof including cellulose ethers and cellulose esters and tamarind gum (for example, comprising xyloglucan polymers), guar gum, locust bean gum (in some aspects comprising galactomannan polymers), and other industrial gums and polymers.
  • Suitable silicones comprise Si—O moieties and may be selected from (a) non-functionalized siloxane polymers, (b) functionalized siloxane polymers, and combinations thereof.
  • the molecular weight of the organosilicone is usually indicated by the reference to the viscosity of the material.
  • the organosilicones may comprise a viscosity of from about 10 to about 2,000,000 centistokes at 25° C.
  • suitable organosilicones may have a viscosity of from about 10 to about 800,000 centistokes at 25° C.
  • Suitable organosilicones may be linear, branched or cross-linked.
  • the organo silicone may comprise a cyclic silicone.
  • the cyclic silicone may comprise a cyclomethicone of the formula [(CH 3 ) 2 SiO] n where n is an integer that may range from about 3 to about 7, or from about 5 to about 6.
  • the organosilicone may comprise a functionalized siloxane polymer.
  • Functionalized siloxane polymers may comprise one or more functional moieties selected from the group consisting of amino, amido, alkoxy, hydroxy, polyether, carboxy, hydride, mercapto, sulfate, phosphate, and/or quaternary ammonium moieties. These moieties may be attached directly to the siloxane backbone through a bivalent alkylene radical, (i.e., “pendant”) or may be part of the backbone.
  • Suitable functionalized siloxane polymers include materials selected from the group consisting of aminosilicones, amidosilicones, silicone polyethers, silicone-urethane polymers, quaternary ABn silicones, amino ABn silicones, and combinations thereof.
  • the functionalized siloxane polymer may comprise a silicone polyether, also referred to as “dimethicone copolyol.”
  • silicone polyethers comprise a polydimethylsiloxane backbone with one or more polyoxyalkylene chains. The polyoxyalkylene moieties may be incorporated in the polymer as pendent chains or as terminal blocks.
  • the functionalized siloxane polymer may comprise an aminosilicone.
  • the organosilicone may comprise amine ABn silicones and quat ABn silicones.
  • Such organosilicones are generally produced by reacting a diamine with an epoxide.
  • the functionalized siloxane polymer may comprise silicone-urethanes. These are commercially available from Wacker Silicones under the trade name SLM-21200®.
  • the optional perfume component may comprise a component selected from the group consisting of
  • Porous Carrier Microcapsule A portion of the perfume composition can also be absorbed onto and/or into a porous carrier, such as zeolites or clays, to form perfume porous carrier microcapsules in order to reduce the amount of free perfume in the multiple use fabric conditioning composition.
  • a porous carrier such as zeolites or clays
  • Pro-perfume The perfume composition may additionally include a pro-perfume.
  • Pro-perfumes may comprise nonvolatile materials that release or convert to a perfume material as a result of, e.g., simple hydrolysis, or may be pH-change-triggered pro-perfumes (e.g. triggered by a pH drop) or may be enzymatically releasable pro-perfumes, or light-triggered pro-perfumes.
  • the pro-perfumes may exhibit varying release rates depending upon the pro-perfume chosen.
  • the composition may comprise a fabric hueing agent (sometimes referred to as shading, bluing or whitening agents). Typically the hueing agent provides a blue or violet shade to fabric. Hueing agents can be used either alone or in combination to create a specific shade of hueing and/or to shade different fabric types. This may be provided for example by mixing a red and green-blue dye to yield a blue or violet shade.
  • a fabric hueing agent sometimes referred to as shading, bluing or whitening agents.
  • Hueing agents can be used either alone or in combination to create a specific shade of hueing and/or to shade different fabric types. This may be provided for example by mixing a red and green-blue dye to yield a blue or violet shade.
  • Hueing agents may be selected from any known chemical class of dyes, including but not limited to acridine, anthraquinone (including polycyclic quinones), azine, azo (e.g., monoazo, disazo, trisazo, tetrakisazo, polyazo), including premetallized azo, benzodifurane and benzodifuranone, carotenoid, coumarin, cyanine, diazahemicyanine, diphenylmethane, formazan, hemicyanine, indigoids, methane, naphthalimides, naphthoquinone, nitro and nitroso, oxazine, phthalocyanine, pyrazoles, stilbene, styryl, triarylmethane, triphenylmethane, xanthenes and mixtures thereof.
  • acridine including but not limited to acridine, anthraquinone (including polycyclic quinones),
  • Suitable fabric hueing agents include dyes, dye-clay conjugates, and organic and inorganic pigments.
  • Suitable dyes include small molecule dyes and polymeric dyes.
  • Suitable small molecule dyes include small molecule dyes selected from the group consisting of dyes falling into the Colour Index (C.I.) classifications of Acid, Direct, Basic, Reactive or hydrolysed Reactive, Solvent or Disperse dyes for example that are classified as Blue, Violet, Red, Green or Black, and provide the desired shade either alone or in combination.
  • C.I. Colour Index
  • suitable small molecule dyes include small molecule dyes selected from the group consisting of Colour Index (Society of Dyers and Colourists, Bradford, UK) numbers Direct Violet dyes such as 9, 35, 48, 51, 66, and 99, Direct Blue dyes such as 1, 71, 80 and 279, Acid Red dyes such as 17, 73, 52, 88 and 150, Acid Violet dyes such as 15, 17, 24, 43, 49 and 50, Acid Blue dyes such as 15, 17, 25, 29, 40, 45, 75, 80, 83, 90 and 113, Acid Black dyes such as 1, Basic Violet dyes such as 1, 3, 4, 10 and 35, Basic Blue dyes such as 3, 16, 22, 47, 66, 75 and 159, Disperse or Solvent dyes U.S. Pat. No.
  • suitable small molecule dyes include small molecule dyes selected from the group consisting of C. I. numbers Acid Violet 17, Acid Blue 80, Acid Violet 50, Direct Blue 71, Direct Violet 51, Direct Blue 1, Acid Red 88, Acid Red 150, Acid Blue 29, Acid Blue 113 or mixtures thereof.
  • Suitable polymeric dyes include polymeric dyes selected from the group consisting of polymers containing covalently bound (sometimes referred to as conjugated) chromogens, (dye-polymer conjugates), for example polymers with chromogens co-polymerized into the backbone of the polymer and mixtures thereof.
  • Polymeric dyes include those described in U.S. Pat. No. 7,686,892 B2.
  • suitable polymeric dyes include polymeric dyes selected from the group consisting of fabric-substantive colorants sold under the name of Liquitint® (Milliken, Spartanburg, S.C., USA), dye-polymer conjugates formed from at least one reactive dye and a polymer selected from the group consisting of polymers comprising a moiety selected from the group consisting of a hydroxyl moiety, a primary amine moiety, a secondary amine moiety, a thiol moiety and mixtures thereof.
  • Liquitint® Moquitint®
  • dye-polymer conjugates formed from at least one reactive dye and a polymer selected from the group consisting of polymers comprising a moiety selected from the group consisting of a hydroxyl moiety, a primary amine moiety, a secondary amine moiety, a thiol moiety and mixtures thereof.
  • suitable polymeric dyes include polymeric dyes selected from the group consisting of Liquitint® Violet CT, carboxymethyl cellulose (CMC) covalently bound to a reactive blue, reactive violet or reactive red dye such as CMC conjugated with C.I. Reactive Blue 19, sold by Megazyme, Wicklow, Ireland under the product name AZO-CM-CELLULOSE, product code S-ACMC, alkoxylated triphenyl-methane polymeric colourants, alkoxylated thiophene polymeric colourants, and mixtures thereof.
  • CMC carboxymethyl cellulose
  • Suitable dye clay conjugates include dye clay conjugates selected from the group comprising at least one cationic/basic dye and a smectite clay, and mixtures thereof.
  • suitable dye clay conjugates include dye clay conjugates selected from the group consisting of one cationic/basic dye selected from the group consisting of C.I. Basic Yellow 1 through 108, C.I. Basic Orange 1 through 69, C.I. Basic Red 1 through 118, C.I. Basic Violet 1 through 51, C.I. Basic Blue 1 through 164, C.I. Basic Green 1 through 14, C.I. Basic Brown 1 through 23, CI Basic Black 1 through 11, and a clay selected from the group consisting of Montmorillonite clay, Hectorite clay, Saponite clay and mixtures thereof.
  • suitable dye clay conjugates include dye clay conjugates selected from the group consisting of: Montmorillonite Basic Blue B7 C.I. 42595 conjugate, Montmorillonite Basic Blue B9 C.I. 52015 conjugate, Montmorillonite Basic Violet V3 C.I. 42555 conjugate, Montmorillonite Basic Green G1 C.I. 42040 conjugate, Montmorillonite Basic Red R1 C.I. 45160 conjugate, Montmorillonite C.I. Basic Black 2 conjugate, Hectorite Basic Blue B7 C.I. 42595 conjugate, Hectorite Basic Blue B9 C.I. 52015 conjugate, Hectorite Basic Violet V3 C.I.
  • the hueing agent may be incorporated into the detergent composition as part of a reaction mixture which is the result of the organic synthesis for a dye molecule, with optional purification step(s).
  • reaction mixtures generally comprise the dye molecule itself and in addition may comprise un-reacted starting materials and/or by-products of the organic synthesis route.
  • Suitable polymeric bluing agents may be alkoxylated. As with all such alkoxylated compounds, the organic synthesis may produce a mixture of molecules having different degrees of alkoxylation. Such mixtures may be used directly to provide the hueing agent, or may undergo a purification step to increase the proportion of the target molecule.
  • Suitable pigments include pigments selected from the group consisting of flavanthrone, indanthrone, chlorinated indanthrone containing from 1 to 4 chlorine atoms, pyranthrone, dichloropyranthrone, monobromodichloropyranthrone, dibromodichloropyranthrone, tetrabromopyranthrone, perylene-3,4,9,10-tetracarboxylic acid diimide, wherein the imide groups may be unsubstituted or substituted by C 1 -C 3 -alkyl or a phenyl or heterocyclic radical, and wherein the phenyl and heterocyclic radicals may additionally carry substituents which do not confer solubility in water, anthrapyrimidinecarboxylic acid amides, violanthrone, isoviolanthrone, dioxazine pigments, copper phthalocyanine which may contain up to 2 chlorine atoms per molecule, polychlor
  • the aforementioned fabric hueing agents can be used in combination (any mixture of fabric hueing agents can be used).
  • Structurants Ultra structurant materials that may be added to adequately suspend the benefit agent containing delivery particles include polysaccharides, for example, gellan gum, waxy maize or dent corn starch, octenyl succinated starches, derivatized starches such as hydroxyethylated or hydroxypropylated starches, carrageenan, guar gum, pectin, xanthan gum, and mixtures thereof; modified celluloses such as hydrolyzed cellulose acetate, hydroxy propyl cellulose, methyl cellulose, and mixtures thereof; modified proteins such as gelatin; hydrogenated and non-hydrogenated polyalkenes, and mixtures thereof; inorganic salts, for example, magnesium chloride, calcium chloride, calcium formate, magnesium formate, aluminum chloride, potassium permanganate, laponite clay, bentonite clay and mixtures thereof; polysaccharides in combination with inorganic salts; quaternized polymeric materials, for example, polyether amines
  • Such materials can be obtained from CP Kelco Corp. of San Diego, Calif., USA; Degussa AG or Dusseldorf, Germany; BASF AG of Ludwigshafen, Germany; Rhodia Corp. of Cranbury, N.J., USA; Baker Hughes Corp. of Houston, Tex., USA; Hercules Corp. of Wilmington, Del., USA; Agrium Inc. of Calgary, Alberta, Canada, ISP of New Jersey, U.S.A.
  • Anti-agglomeration agents include, divalent salts such as magnesium salts, for example, magnesium chloride, magnesium acetate, magnesium phosphate, magnesium formate, magnesium boride, magnesium titanate, magnesium sulfate heptahydrate; calcium salts, for example, calcium chloride, calcium formate, calcium acetate, calcium bromide; trivalent salts, such as aluminum salts, for example, aluminum sulfate, aluminum phosphate, aluminum chloride hydrate and polymers that have the ability to suspend anionic particles such as suspension polymers, for example, polyethylene imines, alkoxylated polyethylene imines, polyquaternium-6 and polyquaternium-7.
  • divalent salts such as magnesium salts, for example, magnesium chloride, magnesium acetate, magnesium phosphate, magnesium formate, magnesium boride, magnesium titanate, magnesium sulfate heptahydrate
  • calcium salts for example, calcium chloride, calcium formate, calcium acetate, calcium bromide
  • trivalent salts such as aluminum salts
  • coating materials include but are not limited to materials selected from the group consisting of poly(meth)acrylate, poly(ethylene-maleic anhydride), polyamine, wax, polyvinylpyrrolidone, polyvinylpyrrolidone co-polymers, polyvinylpyrrolidone-ethyl acrylate, polyvinylpyrrolidone-vinyl acrylate, polyvinylpyrrolidone methylacrylate, polyvinylpyrrolidone/vinyl acetate, polyvinyl acetal, polyvinyl butyral, polysiloxane, poly(propylene maleic anhydride), maleic anhydride derivatives, co-polymers of maleic anhydride derivatives, polyvinyl alcohol, styrene-butadiene latex, gelatin, gum Arabic, carboxymethyl cellulose, carboxymethyl
  • Such materials can be obtained from CP Kelco Corp. of San Diego, Calif., USA; Degussa AG or Dusseldorf, Germany; BASF AG of Ludwigshafen, Germany; Rhodia Corp. of Cranbury, N.J., USA; Baker Hughes Corp. of Houston, Tex., USA; Hercules Corp. of Wilmington, Del., USA; Agrium Inc. of Calgary, Alberta, Canada, ISP of New Jersey U.S.A.
  • benefit agent containing delivery particles may be combined with a formaldehyde scavenger.
  • such benefit agent containing delivery particles may comprise the benefit agent containing delivery particles of the present invention.
  • Suitable formaldehyde scavengers include materials selected from the group consisting of sodium bisulfite, melamine, urea, ethylene urea, cysteine, cysteamine, lysine, glycine, serine, carnosine, histidine, glutathione, 3,4-diaminobenzoic acid, allantoin, glycouril, anthranilic acid, methyl anthranilate, methyl 4-aminobenzoate, ethyl acetoacetate, acetoacetamide, malonamide, ascorbic acid, 1,3-dihydroxyacetone dimer, biuret, oxamide, benzoguanamine, pyroglutamic acid, pyrogallol, methyl gallate, ethyl gallate, propyl gallate, triethanol amine, succinamide, thiabendazole, benzotriazol, triazole, indoline, sulfanilic acid, oxamide,
  • Such formaldehyde scavengers are typically combined with a slurry containing said benefit agent containing delivery particle, at a level, based on total slurry weight, of from about 2 wt. % to about 18 wt. %, from about 3.5 wt. % to about 14 wt. % or even from about 5 wt. % to about 13 wt. %.
  • such formaldehyde scavengers may be combined with a product containing a benefit agent containing delivery particle, said scavengers being combined with said product at a level, based on total product weight, of from about 0.005% to about 0.8%, alternatively from about 0.03% to about 0.5%, alternatively from about 0.065% to about 0.25% of the product formulation.
  • such formaldehyde scavengers may be combined with a slurry containing said benefit agent containing delivery particle, at a level, based on total slurry weight, of from about 2 wt. % to about 14 wt. %, from about 3.5 wt. % to about 14 wt. % or even from about 5 wt. % to about 14 wt. % and said slurry may be added to a product matrix to which addition an identical or different scavenger may be added at a level, based on total product weight, of from about 0.005% to about 0.5%, alternatively from about 0.01% to about 0.25%, alternatively from about 0.05% to about 0.15% of the product formulation,
  • one or more of the aforementioned formaldehyde scavengers may be combined with a liquid fabric enhancing product containing a benefit agent containing delivery particle at a level, based on total liquid fabric enhancing product weight, of from 0.005% to about 0.8%, alternatively from about 0.03% to about 0.4%, alternatively from about 0.06% to about 0.25% of the product formulation
  • such formaldehyde scavengers may be combined with a consumer product, for example, a liquid laundry detergent product containing a benefit agent containing delivery particle, said scavengers being selected from the group consisting of sodium bisulfite, melamine, urea, ethylene urea, cysteine, cysteamine, lysine, glycine, serine, carnosine, histidine, glutathione, 3,4-diaminobenzoic acid, allantoin, glycouril, anthranilic acid, methyl anthranilate, methyl 4-aminobenzoate, ethyl acetoacetate, acetoacetamide, malonamide, ascorbic acid, 1,3-dihydroxyacetone dimer, biuret, oxamide, benzoguanamine, pyroglutamic acid, pyrogallol, methyl gallate, ethyl gallate, propyl gallate, triethanol amine, succin
  • such formaldehyde scavengers may be combined with a hair conditioning product containing a benefit agent containing delivery particle, at a level, based on total hair conditioning product weight, of from about 0.003 wt. % to about 0.30 wt. %, from about 0.03 wt. % to about 0.20 wt. % or even from about 0.06 wt. % to about 0.14 wt. %, said selection of scavengers being identical to the list of scavengers in the previous paragraph relating to a liquid laundry detergent product.
  • compositions containing the benefit agent delivery particle disclosed herein can be used to clean or treat a situs inter alia a surface or fabric. Typically at least a portion of the situs is contacted with an embodiment of Applicants' composition, in neat form or diluted in a liquor, for example, a wash liquor and then the situs may be optionally washed and/or rinsed
  • a method of treating and/or cleaning a situs comprising
  • washing includes but is not limited to, scrubbing, and mechanical agitation.
  • the fabric may comprise most any fabric capable of being laundered or treated in normal consumer use conditions.
  • Liquors that may comprise the disclosed compositions may have a pH of from about 3 to about 11.5. Such compositions are typically employed at concentrations of from about 500 ppm to about 15,000 ppm in solution.
  • the wash solvent is water
  • the water temperature typically ranges from about 5° C. to about 90° C. and, when the situs comprises a fabric, the water to fabric ratio is typically from about 1:1 to about 30:1.
  • test methods that are disclosed in the Test Methods Section of the present application should be used to determine the respective values of the parameters of Applicants' invention as such invention is described and claimed herein.
  • the preferred method to isolate benefit agent delivery particles from finished products is based on the fact that the density of most such particles is different from that of water.
  • the finished product is mixed with water in order to dilute and/or release the particles.
  • the diluted product suspension is centrifuged to speed up the separation of the particles. Such particles tend to float or sink in the diluted solution/dispersion of the finished product.
  • a pipette or spatula the top and bottom layers of this suspension are removed, and undergo further rounds of dilution and centrifugation to separate and enrich the particles.
  • the particles are observed using an optical microscope equipped with crossed-polarized filters or differential interference contrast (DIC), at total magnifications of 100 ⁇ and 400 ⁇ .
  • DIC differential interference contrast
  • step 3 i.e., omit step 2
  • steps 4 through 8 proceed steps with steps 4 through 8.
  • step 3 i.e., omit step 2
  • steps 4 through 8 proceed steps with steps 4 through 8.
  • the fabric enhancer has a white color or is difficult to distinguish the particle enriched layers add 4 drops of dye (such as Liquitint Blue JH 5% premix from Milliken & Company, Spartanburg, S.C., USA) into the centrifuge tube of step 1 and proceed with the isolation as described.
  • dye such as Liquitint Blue JH 5% premix from Milliken & Company, Spartanburg, S.C., USA
  • liquid finished products which are not fabric softeners or fabric enhancers (eg., liquid laundry detergents, liquid dish washing detergents, liquid hand soaps, lotions, shampoos, conditioners, and hair dyes)
  • fabric softeners or fabric enhancers eg., liquid laundry detergents, liquid dish washing detergents, liquid hand soaps, lotions, shampoos, conditioners, and hair dyes
  • NaCl eg., 100-200 g NaCl
  • a water-soluble dye can be added to the diluent to provide visual contrast.
  • the water and product mixture is subjected to sequential rounds of centrifugation, involving removal of the top and bottom layers, re-suspension of those layers in new diluent, followed by further centrifugation, isolation and re-suspension.
  • Each round of centrifugation occurs in tubes of 1.5 to 50 ml in volume, using centrifugal forces of up to 20,000 ⁇ g, for periods of 5 to 30 minutes. At least six rounds of centrifugation are typically needed to extract and clean sufficient particles for testing.
  • the initial round of centrifugation may be conducted in 50 ml tubes spun at 10,000 ⁇ g for 30 mins, followed by five more rounds of centrifugation where the material from the top and bottom layers is resuspended separately in fresh diluent in 1.8 ml tubes and spun at 20,000 ⁇ g for 5 mins per round.
  • the particles from these two layers are recombined after the final centrifugation step, to create a single sample containing all the delivery particles extracted from that product.
  • the extracted particles should be analyzed as soon as possible but may be stored as a suspension in DI water for up to 14 days before they are analyzed.
  • the three separate measurements required are namely: i) the volume-weighted particle size distribution (PSD); ii) the diameter of 10 individual particles within each of 3 specified size ranges, and; iii) the rupture-force of those same 30 individual particles.
  • the two graphs created are namely: a plot of the volume-weighted particle size distribution data collected at i) above; and a plot of the modeled distribution of the relationship between particle diameter and fracture-strength, derived from the data collected at ii) and iii) above.
  • the modeled relationship plot enables the particles within a claimed strength range to be identified as a specific region under the volume-weighted PSD curve, and then calculated as a percentage of the total area under the curve.
  • C log P The log P values of many perfume ingredients have been reported; for example, the Pomona92 database, available from Daylight Chemical Information Systems, Inc. (Daylight CIS, Irvine, Calif.), contains many, along with citations to the original literature. However, the log P values are most conveniently calculated by the “CLOGP” program, also available from Daylight CIS. This program also lists experimental log P values when they are available in the Pomona92 database.
  • the “calculated log P” (C log P) is determined by the fragment approach of Hansch and Leo (cf., A. Leo, in Comprehensive Medicinal Chemistry, Vol. 4, C. Hansch, P. G. Sammens, J. B. Taylor and C. A. Ramsden, Eds., p.
  • the fragment approach is based on the chemical structure of each perfume ingredient, and takes into account the numbers and types of atoms, the atom connectivity, and chemical bonding.
  • the C log P values which are the most reliable and widely used estimates for this physicochemical property, are preferably used instead of the experimental log P values in the selection of perfume ingredients which are useful in the present invention.
  • a drop of the particle suspension or finished product is placed onto a glass microscope slide and dried under ambient conditions for several minutes to remove the water and achieve a sparse, single layer of solitary particles on the dry slide. Adjust the concentration of particles in the suspension as needed to achieve a suitable particle density on the slide.
  • the slide is placed on a sample stage of an optical microscope equipped and examined at a total magnification of 100 ⁇ or 400 ⁇ . Images are captured and calibrated for the accurate measurement of particle diameters. Three replicate slides are prepared and analyzed.
  • At least 50 benefit agent delivery particles on each slide are selected for measurement, in a manner which is unbiased by their size and so creates a representative sample of the distribution of particle sizes present. This may be achieved by examining fields-of-view which are selected at random or according to a pre-defined grid pattern, and by measuring the diameter of all the delivery particles present in each field-of-view examined. Delivery particles which appear obviously non-spherical, deflated, leaking, or damaged are unsuitable for measurement, are excluded from the selection process and their diameters are not recorded. The diameter of each suitable delivery particle examined is measured using the microscope and the value is recorded. The recorded particle diameter measurements are used to calculate the percentage of the particles having a particle size within the claimed size range(s), and also to calculate the mean particle size.
  • the particle wall thickness is measured in nanometers on 50 benefit agent delivery particles using freeze-fracture cryo-scanning electron microscopy (FF cryoSEM), at magnifications of between 50,000 ⁇ and 150,000 ⁇ .
  • Samples are prepared by flash freezing small volumes of a suspension of particles or finished product. Flash freezing can be achieved by plunging into liquid ethane, or through the use of a device such as a High Pressure Freezer Model 706802 EM Pact, (Leica Microsystems, Wetzlar, Germany). Frozen samples are fractured while at ⁇ 120° C., then cooled to below ⁇ 160° C. and lightly sputter-coated with gold/palladium.
  • FF cryoSEM freeze-fracture cryo-scanning electron microscopy
  • cryo preparation devices such as those from Gatan Inc., (Pleasanton, Calif., USA).
  • the frozen, fractured and coated sample is then transferred at ⁇ 170° C. or lower, to a suitable cryoSEM microscope, such as the Hitachi S-5200 SEM/STEM (Hitachi High Technologies, Tokyo, Japan).
  • a suitable cryoSEM microscope such as the Hitachi S-5200 SEM/STEM (Hitachi High Technologies, Tokyo, Japan).
  • Hitachi S-5200 Imaging is performed with 3.0 KV accelerating voltage and 5 ⁇ A—20 ⁇ A tip emission current.
  • Images are acquired of the fractured wall in cross-sectional view from 50 benefit delivery particles selected in a random manner which is unbiased by their size, so as to create a representative sample of the distribution of particle sizes present.
  • the wall thickness of each of the 50 particles is measured using the calibrated microscope software, by drawing a measurement line perpendicular to the outer surface of the particle wall.
  • the 50 independent wall thickness measurements are recorded and used to calculate the mean thickness, and the percentage of the particles having a wall thickness within the claimed range.
  • the amount of benefit agent leakage from the delivery particles is determined according to the following method:
  • Viscosity of liquid finished product is measured using an AR 550 rheometer/viscometer from TA instruments (New Castle, Del., USA), using parallel steel plates of 40 mm diameter and a gap size of 500 ⁇ m.
  • the high shear viscosity at 20 s ⁇ 1 and low shear viscosity at 0.05 s ⁇ 1 is obtained from a logarithmic shear rate sweep from 0.1 s ⁇ 1 to 25 s ⁇ 1 in 3 minutes time at 21° C.
  • Free formaldehyde in finished product is measured in accordance with the standard method NIOSH 5700 Formaldehyde on Dust (NIOSH Manual of Analytical Methods, Fourth Edition, August 1994, The National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Atlanta, Ga., USA), with the following adaptations:
  • GC-MS/FID Gas Chromatography with Mass Spectroscopy/Flame Ionization Detector
  • Suitable equipment includes: Agilent Technologies G1530A GC/FID; Hewlett Packer Mass Selective Device 5973; and 5%-methylpolysiloxane Column J&W DB-5 (30 m length ⁇ 0.25 mm internal diameter ⁇ 0.25 ⁇ m film thickness).
  • the objective of the method described herein is to identify and determine the amount of Styrene Maleic Anhydride Monomethylmaleate (SMAM) in delivery particles comprising aminoplast, polyacrylate and/or polymethacrylate wall chemistries.
  • SMAM Styrene Maleic Anhydride Monomethylmaleate
  • This method assumes that the species of Styrene Maleic Anhydride used in the delivery particle is Styrene Maleic Anhydride Monomethylmaleate, and or/a salt thereof and not a mixture of SMAM with other styrene maleic anhydrides.
  • the benefit agent delivery particles are also referred to as “delivery particle” and/or “delivery particles” in this method.
  • the method consists of extracting delivery particle walls from finished products by filtration, extracting the delivery particle wall materials, and quantifying the amount of SMA using ATR-FTIR Spectroscopy.
  • Weight ⁇ ⁇ ratio ⁇ ⁇ of ⁇ ⁇ S ⁇ ⁇ M ⁇ ⁇ A ⁇ ⁇ M ⁇ ⁇ to ⁇ ⁇ delivery ⁇ ⁇ particle ⁇ ⁇ wall weight ⁇ ⁇ ( g ) ⁇ ⁇ S ⁇ ⁇ M ⁇ ⁇ A ⁇ ⁇ M ⁇ ⁇ added ⁇ ⁇ to ⁇ ⁇ sample weight ⁇ ⁇ ( g ) ⁇ ⁇ particle ⁇ ⁇ wall
  • 700 / 1732 ⁇ ⁇ peak ⁇ ⁇ area ⁇ ⁇ ratio 700 ⁇ ⁇ cm - 1 ⁇ ⁇ integrated ⁇ ⁇ peak ⁇ ⁇ area 1732 ⁇ ⁇ cm - 1 ⁇ ⁇ integrated ⁇ ⁇ peak ⁇ ⁇ area
  • Weight ⁇ ⁇ ratio ⁇ ⁇ of ⁇ ⁇ S ⁇ ⁇ M ⁇ ⁇ A ⁇ ⁇ M ⁇ ⁇ to ⁇ ⁇ delivery ⁇ ⁇ particle ⁇ ⁇ wall weight ⁇ ⁇ ( g ) ⁇ ⁇ S ⁇ ⁇ M ⁇ ⁇ A ⁇ ⁇ M ⁇ ⁇ added ⁇ ⁇ to ⁇ ⁇ sample weight ⁇ ⁇ ( g ) ⁇ ⁇ particle ⁇ ⁇ wall
  • Hydrolysis Degree is the determined. as follows:
  • the raw material SMA polymer is analyzed via Fourier-Transformed Infra-Red Spectroscopy (FTIR), after removing all liquid via freeze-drying. Approximately 50 mg of the freeze-dried material may then be re-dissolved in 2 mL methanol in order to cast a thin film using approximately 200 ⁇ L of the solution cast over a polyethylene sample IR card. The solution is allowed to air dry for 30 minutes prior to FTIR analysis.
  • FTIR Fourier-Transformed Infra-Red Spectroscopy
  • the anhydride and the acid (hydrolyzed) unit are each quantified from the peak absorbance present at their respective characteristic absorption bands in the FTIR spectra, namely: 1770-1790 cm ⁇ 1 for anhydride, and 1700-1720 cm ⁇ 1 for COOH acid (hydrolyzed polymer).
  • the IR spectrum (from 4000 cm ⁇ 1 to 500 cm ⁇ 1 at a resolution of 4 cm ⁇ 1 ) is recorded using a plain uncoated polyethylene sample IR card as the background.
  • the percent hydrolysis of the polymer is determined by calculating the ratio of the peak absorbances of the acid units, to the sum of the acid units and anhydride units, and via the following equation:
  • maleic acid and “maleic anhydride” represent the peak absorbance of each polymer unit respectively, as determined by quantitative Fourier-Transformed Infra-Red. Spectroscopy (FTIR) using the characteristic absorption bands of: 1770-1790 cm ⁇ 1 for anhydride and 1700-1720 cm ⁇ 1 for COOH acid (hydrolyzed).
  • FTIR Fourier-Transformed Infra-Red. Spectroscopy
  • a first mixture is prepared by combining 200 grams of water with 60 grams of styrene maleic anhydride copolymer (Ashland Water technologies, NC, USA). This first mixture is adjusted to pH 5.8 using citric acid solution. 6 grams of partially methylated methylol melamine resin (Cymel 385, 80% solids, Cytec, N.J., USA) is added to the emulsifier solution. 200 grams of the capsule core material which comprise a fragrance oil is added to the first mixture at a temperature of 50 C to form an emulsion. A low speed blending is used to achieve a volume-mean particle size of 30 micrometers. A second solution and 3 grams of sodium sulfate salt are added to the emulsion.
  • This second solution contains 3 grams of acrylic acid (Sigma Aldrich, USA), 120 grams of distilled water, sodium hydroxide solution to adjust the pH to 4.8, 10 grams of partially methylated methylol melamine resin (Cymel 385, 80% solids, Cytec, N.J., USA). The temperature of the mixture is gradually raised to 85 degrees Centigrade, and is maintained at this temperature overnight with continuous stirring to complete the encapsulation.
  • a first mixture is prepared by combining 200 grams of water with 60 grams of styrene maleic anhydride copolymer (Ashland Water technologies, NC, USA). This first mixture is adjusted to pH 5.8 using citric acid solution. 6 grams of partially methylated methylol melamine resin (Cymel 385, 80% solids, Cytec, N.J., USA) is added to the emulsifier solution. 200 grams of the capsule core material which comprise a fragrance oil is added to the first mixture at a temperature of 50 C to form an emulsion. A low speed blending is used to achieve a volume-mean particle size of 30 micrometers. A second solution and 3 grams of sodium sulfate salt are added to the emulsion.
  • This second solution contains 3 grams of acrylic acid (Sigma Aldrich, USA), 120 grams of distilled water, sodium hydroxide solution to adjust the pH to 4.8, 10 grams of partially methylated methylol melamine resin (Cymel 385, 80% solids, Cytec, N.J., USA). The temperature of the mixture is gradually raised to 85 degrees Centigrade, and is maintained at this temperature overnight with continuous stirring to complete the encapsulation.
  • a first mixture is prepared by combining 200 grams of water with 60 grams of styrene maleic anhydride copolymer (Ashland Water technologies, NC, USA). This first mixture is adjusted to pH5.8 using citric acid solution. 6 grams of partially methylated methylol melamine resin (Cymel 385, 80% solids, Cytec, N.J., USA) is added to the emulsifier solution. 200 grams of the capsule core material which comprise a suds suppressor, a silicone and a fragrance oil is added to the first mixture at a temperature of 50 C to form an emulsion. Low speed blending is used to achieve a volume-mean particle size of 15 micrometers.
  • a second solution and 3 grams of sodium sulfate salt are added to the emulsion.
  • This second solution contains 3 grams of acrylic acid (Sigma Aldrich, USA), 120 grams of distilled water, 10 grams of partially methylated methylol melamine resin (Cymel 385, 80% solids, Cytec, N.J., USA). The temperature of the mixture is gradually raised to 85 degrees Centigrade, and is maintained at this temperature overnight with continuous stirring to complete the encapsulation.
  • a first mixture is prepared by combining 200 grams of water with 60 grams of styrene maleic anhydride copolymer (Ashland Water technologies, NC, USA). This first mixture is adjusted to pH5.8 using citric acid solution. 6 grams of partially methylated methylol melamine resin (Cymel 385, 80% solids, Cytec, N.J., USA) is added to the emulsifier solution. 200 grams of the capsule core material which comprise a sud suppressor, a silicone and a fragrance oil is added to the first mixture at a temperature of 50 C to form an emulsion. Low speed blending is used to achieve a volume-mean particle size of 15 micrometers.
  • a second solution and 3 grams of sodium sulfate salt are added to the emulsion.
  • This second solution contains 3 grams of acrylic acid (Sigma Aldrich, USA), 120 grams of distilled water, 10 grams of partially methylated methylol melamine resin (Cymel 385, 80% solids, Cytec, N.J., USA). The temperature of the mixture is gradually raised to 85 degrees Centigrade, and is maintained at this temperature overnight with continuous stirring to complete the encapsulation.
  • the internal phase is mixed with stirring for one hour under a nitrogen blanket and brought to a temperature of 70 C and maintained at this temperature.
  • the water phase components are also mixed with stirring.
  • the oil phase components are cooled to 50 C and then are blended at high speed.
  • the water phase is added to the internal phase and milled for one hour at 50 C to achieve a particle size of about 15 micrometers.
  • the temperature was increased to 75 C and maintained along with continuous stirring for four hours and then heating was increased to 95 C for six hours.
  • the resultant oil in water capsules had a size of about 16 micrometers.
  • 1200 g of perfume microcapsule slurry containing one or more of the variants of microcapsules disclosed in the present specification, is mixed together with 700 g of water for 10 minutes using an IKA Eurostar mixer with R1382 attachment at a speed of 180 rpm.
  • the mixture is then transferred over to a feeding vessel to be spray dried in a 1.2 m diameter Niro Production Minor.
  • the slurry is fed into the tower using a Watson-Marlow 504U peristaltic pump and atomised using a 100 mm diameter rotary atomiser run at 18000 rpm, with co-current air flow for drying.
  • the slurry is dried using an inlet temperature of 200° C. and outlet temperature of 95° C. to form a fine powder.
  • the equipment used the spray drying process may be obtained from the following suppliers: IKA Werke GmbH & Co. KG, Janke and Kunkel—Str. 10, D79219 Staufen, Germany; Niro A/S Gladsaxevej 305, P.O. Box 45, 2860 Soeborg, Denmark and Watson-Marlow Bredel Pumps Limited, Falmouth, Cornwall, TR11 4RU, England.
  • Non-limiting examples of product formulations containing Perfume Microcapsules disclosed in the present specification are summarized in the following tables.
  • Granular Laundry Detergent Compositions for Hand Washing or Washing Machines Typically Top-Loading Washing Machines
  • the typical pH is about 10.
  • Example of Unit Dose detergents A B C 14-15 alkyl poly ethoxylate (8) 12 — C 12-14 alkyl poly ethoxylate (7) 1 14 C 12-14 alkyl poly ethoxylate (3) 8.4 9 sulfate Mono EthanolAmine salt Linear Alkylbenzene sulfonic acid 15 16 Citric Acid 0.6 0.5 C 12-18 Fatty Acid 15 17 Enzymes 1.5 1.2 PEI 600 EO20 4 — Diethylene triamine penta methylene 1.3 — phosphonic acid or HEDP Fluorescent brightener 0.2 0.3 Hydrogenated Castor Oil 0.2 0.2 1,2 propanediol 16 12 Glycerol 6.2 8.5 Sodium hydroxide — 1 Mono Ethanol Amine 7.9 6.1 Dye Present Present Present PDMS — 2.7 Potassium sulphite 0.2 0.2 Perfume Microcapsules (2) 1.5 0.9 Water Up to Up to 100% 100% (2) Microcapsules of the present invention comprising a core that
  • LAS is linear alkylbenzenesulfonate having an average aliphatic carbon chain length C 9 -C 15 supplied by Stepan, Northfield, Ill., USA or Huntsman Corp. (HLAS is acid form).
  • AE3S is C 12-15 alkyl ethoxy (3) sulfate supplied by Stepan, Northfield, Ill., USA
  • AE7 is C 12-15 alcohol ethoxylate, with an average degree of ethoxylation of 7, supplied by Huntsman, Salt Lake City, Utah, USA
  • AES is C 10-18 alkyl ethoxy sulfate supplied by Shell Chemicals.
  • AE9 is C 12-13 alcohol ethoxylate, with an average degree of ethoxylation of 9, supplied by Huntsman, Salt Lake City, Utah, USA
  • HSAS or HC1617HSAS is a mid-branched primary alkyl sulfate with average carbon chain length of about 16-17
  • Zeolite A is supplied by Industrial Zeolite (UK) Ltd, Grays, Essex, UK
  • Polyacrylate MW 4500 is supplied by BASF, Ludwigshafen, Germany
  • Carboxymethyl cellulose is Finnfix® V supplied by CP Kelco, Arnhem, Netherlands
  • Suitable chelants are, for example, diethylenetetraamine pentaacetic acid (DTPA) supplied by Dow Chemical, Midland, Mich., USA or Hydroxyethane di phosphonate (HEDP) supplied by Solutia, St Louis, Mo., USA Bagsvaerd, Denmark
  • DTPA diethylenetetraamine pentaacetic acid
  • HEDP Hydroxyethane di phosphonate
  • Savinase®, Natalase®, Stainzyme®, Lipex®, CellucleanTM, Mannaway® and Whitezyme® are all products of Novozymes, Bagsvaerd, Denmark.
  • Proteases may be supplied by Genencor International, Palo Alto, Calif., USA (e.g. Purafect Prime®) or by Novozymes, Bagsvaerd, Denmark (e.g. Liquanase®, Coronase®).
  • Fluorescent Brightener 1 is Tinopal® AMS
  • Fluorescent Brightener 2 is Tinopal® CBS-X
  • Sulphonated zinc phthalocyanine and Direct Violet 9 is Pergasol® Violet BN-Z all supplied by Ciba Specialty Chemicals, Basel, Switzerland
  • Sodium perborate is supplied by Degussa, Hanau, Germany
  • NOBS is sodium nonanoyloxybenzenesulfonate, supplied by Future Fuels, Batesville, USA
  • TAED is tetraacetylethylenediamine, supplied under the Peractive® brand name by Clariant GmbH, Sulzbach, Germany
  • S-ACMC is carboxymethylcellulose conjugated with C.I. Reactive Blue 19, sold by Megazyme, Wicklow, Ireland under the product name AZO-CM-CELLULOSE, product code S-ACMC.
  • Soil release agent is Repel-O-Tex® PF, supplied by Rhodia, Paris, France
  • Acrylic Acid/Maleic Acid Copolymer is molecular weight 70,000 and acrylate:maleate ratio 70:30, supplied by BASF, Ludwigshafen, Germany
  • HEDP Hydroxyethane di phosphonate
  • HSAS is mid-branched alkyl sulfate as disclosed in U.S. Pat. No. 6,020,303 and U.S. Pat. No. 6,060,443
  • Perfume ballast load is 3 kg and contains:
  • Terry tracers are evaluated by perfumers and graded on the Primavera scale.
  • Example G Aluminum Zirconium 25.6 25.6 Trichlorohydrex Glycine Powder Cyclopentasiloxane QS QS. CO-1897 Stearyl Alcohol NF 13 13 Hydrogenated Castor Oil MP80 2.9 2.9 Deodorized Behenyl Alcohol 0.2 0.2 Ozokerite Wax SP-1026 1.0 1.0 C12-15 Alkyl Benzoate* 8.5 8.5 PPG-14 Butyl Ether* 6.5 6.5 Mineral Oil* 1.0 1.0 Fragrance 0.75 0.75 Talc Imperial 250 USP 2.5 2.5 Polyacrylate Microcapsule 1.5 2.5 Fragrance Complexed Beta- 3 3 cyclodextrin DL-ALPHA Tocopheryl Acetate 0.1 0.1 (Vitamin E) d-Panthenyl Triacetate 0.1 0.1 Acetyl Glucosamine 0.1 0.1 QS—indicates that this material is used to bring the total to 100%. *indicates the non-volatile oils.
  • Example I II III PHASE A DC-9040 1 8.60 3.00 5.00 Dimethicone 4.09 4.00 4.00 Polymethylsilsesquioxane 2 4.09 4.00 4.00 Cyclomethicone 11.43 0.50 11.33 KSG-210 3 5.37 5.25 5.40 Polyethylene wax 4 3.54 2.05 DC-2503 Cosmetic Wax 5 7.08 10.00 3.77 Hydrophobic TiO2 0.50 Iron oxide coated Mica 0.65 TiO2 Coated Mica 1.00 1.00 Fragrance Particles of Example 3 1.00 1.00 1.00 PHASE B Glycerin 10.00 10.00 10.00 Dexpanthenol 0.50 0.50 0.50 Pentylene Glycol 3.00 3.00 3.00 Hexamidine Diisethionate 6 0.10 0.10 0.10 0.10 Niacinamide 7 5.00 5.00 Methylparaben 0.20 0.20 0.20 Ethylparaben 0.05 0.05 0.05 Sodium Citrate 0.20 0.20 0.20 Citric Acid 0.03 0.03 0.03 Sodium Benzoate 0.05
  • composition may comprise one or more other skin care actives, their salts and derivatives, as disclosed herein, in amounts also disclosed herein as would be deemed suitable by one of skill in the art.
  • a suitable container in a suitable container, combine the ingredients of Phase A.
  • a suitable container combine the ingredients of Phase B. Heat each phase to 73° C.-78° C. while mixing each phase using a suitable mixer (e.g., Anchor blade, propeller blade, or IKA T25) until each reaches a substantially constant desired temperature and is homogenous. Slowly add Phase B to Phase A while continuing to mix Phase A. Continue mixing until batch is uniform. Pour product into suitable containers at 73-78° C. and store at room temperature. Alternatively, continuing to stir the mixture as temperature decreases results in lower observed hardness values at 21 and 33° C.
  • a suitable mixer e.g., Anchor blade, propeller blade, or IKA T25

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  • Engineering & Computer Science (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Dermatology (AREA)
  • Dispersion Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Cosmetics (AREA)
  • Fats And Perfumes (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
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WO2017201113A1 (en) * 2016-05-20 2017-11-23 The Procter & Gamble Company Detergent composition comprising encapsulates
US10004673B1 (en) 2017-02-08 2018-06-26 L'oreal Hair treatment composition comprising Michael addition product and methods for treating hair
WO2018148020A1 (en) 2017-02-10 2018-08-16 Henkel IP & Holding GmbH Particulate fragrance enhancers
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US10443019B2 (en) 2016-05-20 2019-10-15 The Procter & Gamble Company Detergent composition comprising ternary surfactant mixture, encapsulates, and cationic polymer deposition aid
US10494592B2 (en) 2016-05-20 2019-12-03 The Procter & Gamble Company Detergent composition comprising anionic/nonionic/cationic surfactant system and encapsulates
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WO2015051139A1 (en) 2015-04-09
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US20170000699A1 (en) 2017-01-05
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MX2016004260A (es) 2016-07-08
BR112016007120A2 (pt) 2017-08-01
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US10092485B2 (en) 2018-10-09

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