Classifications

• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/38—Cationic compounds
  • C11D1/62—Quaternary ammonium compounds
• • 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
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/835—Mixtures of non-ionic with cationic compounds
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/0005—Other compounding ingredients characterised by their effect
  • C11D3/001—Softening compositions
  • C11D3/0015—Softening compositions liquid
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/20—Organic compounds containing oxygen
  • C11D3/22—Carbohydrates or derivatives thereof
  • C11D3/221—Mono, di- or trisaccharides or derivatives thereof
• • 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
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/662—Carbohydrates or derivatives

Definitions

• the present invention concerns the use of sugar polyesters to reduce and eliminate fatty base off-odours in fabric conditioner compositions which contain actives having unsaturated fatty chains.
• So-called ⁇ soft' fabric softening actives derived from unsaturated fatty acyl or acid feedstock have the advantages of ease of formulation and manufacture and a greater physical stability under varying climatic storage conditions, when compared to the so-called ⁇ hardened' softeners (i.e. those derived from fully or nearly fully saturated fatty compounds) .
• ⁇ soft' actives are the generation of an objectionable fatty base odour.
• This odour is believed to arise, at least in part, from rancidification of the double bonds in the fatty acid or fatty acyl chains, due to auto-oxidation. Malodour is detectable in the raw material, in the formulated products and on the substrate itself, such as fabric, during and after treatment with these soft actives.
• WO 2008/026140 A2 uses malodour counteracting mixtures of perfume ingredients containing at least one nitrile material in combination with another fragrance material to neutralise tobacco, bathroom or kitchen malodours, animal malodours, etc in a variety of products including textile treatment products such as fabric softeners.
• WO 2006/058297 Al uses perfume compositions for masking fatty acid odours in a range of cleaning and treatment compositions including laundry and dishwashing detergents, particularly those odours arising from enzyme-generated short chain fatty acids such as butyric acid.
• WO 2006/066705 Al (Unilever), describes a malodour reducing toilet bar composition comprising a pyranone derivative.
• Use of pyran-4-one derivates as a specific odour masking agent in toilet bars enables the inclusion of reduced levels of perfume in the bar composition.
• SPEs have been used as fabric softeners and are known as principle softeners, as co-softeners and as stabilisers.
• composition comprising:
• sucrose polyester is defined by the formula (I) : M ( OH ) 8 - X ( 0C ( 0 ) R ' ) ⁇
• M(OH) 8 is sucrose in which M is the main backbone of the sucrose and (OH) represents the available hydroxyl groups on a sucrose molecule;
• x is an integer selected from 1 to 8, preferably 4;
• R' is a fatty chain and is linear or branched, cyclic or acyclic, saturated or unsaturated, substituted or unsubstituted and is independently selected from (C 8 -Ci 8 ) and (C20-C22) with the proviso that, when R' is C 8 -Ci 8 , the iodine value of the fatty chains is from 0 to 25, preferably 0 to 20, more preferably from 1 to 5; and when R' is C20-C22, the iodine value of the fatty chains is from 0 to 120, preferably, from 20 to 100, most preferably from 25 to 80.
• sucrose polyester to reduce base off-odour in a composition
• a sucrose polyester to reduce base off-odour in a composition
• the sucrose polyester is defined by the formula (I) :
• M(OH) 8 is sucrose in which M is the main backbone of the sucrose and (OH) represents the available hydroxyl groups on a sucrose molecule;
• x is an integer selected from 1 to 8, preferably 4;
• R' is a fatty chain and is linear or branched, cyclic or acyclic, saturated or unsaturated, substituted or unsubstituted and is independently selected from (C 8 -Ci 8 ) and (C20-C22) with the proviso that, when R' is Cs-Cis, the iodine value of the fatty chains is from 0 to 25, preferably 0 to 20, more preferably from 1 to 5; and when R' is C20-C22, the iodine value of the fatty chains is from 0 to 120, preferably, from 20 to 100, most preferably from 25 to 80.
• Further aspects of the invention provide for the use of a sugar polyester in a composition to improve freshness of laundered articles, to improve clean smell of laundered articles and to improve the longevity of fragrance of a laundry conditioning product.
• compositions of the present invention contain one or more sugar esters.
• Sucrose ester is composed of a sucrose moiety having one or more of its hydroxyl groups esterified.
• Sucrose is a disaccharide .
• the sucrose molecule can be represented by the formula:
• compositions of the invention comprise a sucrose ester, which can be represented by the following formula (D :
• M(OH) 8 is sucrose in which M is the main backbone of the sucrose and (OH) represents the available hydroxyl groups on a sucrose molecule;
• x is an integer selected from 1 to 8, preferably 4 and is the hydroxyl groups that are esterified and (8-x) is the hydroxyl groups that remain unchanged;
• R' is a fatty chain and is linear or branched, cyclic or acyclic, saturated or unsaturated, substituted or unsubstituted.
• Substituent groups can include, for example, hydroxyl, halide, alkoxy, and the like.
• R' is independently selected from (C 8 -Ci 8 , preferably (Ci2-Ci 8 ) and (C20-C22) with the proviso that, when R' is C 8 -Ci 8 , the iodine value of the fatty chains is from 0 to 25, preferably 0 to 20, more preferably from 1 to 5, most preferably from 1 to 2; and when R' is C20-C22, the iodine value of the fatty chains is from 0 to 120, preferably, from 20 to 100, more preferably from 25 to 90, most preferably from 25 to 80.
• a mixture of chains may be used in the SPE.
• the sucrose polyester is preferably solid, or substantially solid in nature, and has an iodine value of from 0 to 15, preferably from 0 to 10, more preferably from 0 to 5 and most preferably from 1 to 5.
• compositions are preferably substantially free and more preferably free from the presence of SPEs that do not conform to the formula (I) given above.
• the unsaturated R' moieties may comprise a mixture of "cis” and “trans” forms about the unsaturated sites.
• the "cis” / "trans” ratios may range from about 1:1 to about 50:1, or from about 2:1 to about 40:1, or from about 3:1 to about 30:1, or from about 4:1 to about 20: 1.
• the sucrose polyester is present in the compositions of the present invention at a level of from 0.1 to 5, preferably from 0.2 to 4.5, more preferably from 0.2 to 4 % by weight of the total composition.
• a particularly preferred range is from 0.1 to 4 %, preferably from 0.2 to 3 %, more preferably from 0.5 to 2 %, even more preferably from 0.6 to 1.5 %.
• the SPEs are preferably tallow or plant or vegetable based.
• Preferred plant and vegetable based SPEs include those derived from palm, canola, high erucate rape and soya bean.
• sucrose esters are the Ryoto range (ex Mitsubishi) of liquid, soft solid or solid from and fully or partially hardened sucrose esters based on vegetable oils.
• a further preferred sucrose ester is SCR-PK-H (ex Kao) , which is derived from hardened palm kernel oil with a chain length of Ci ⁇ and mainly Cis.
• the present invention relates to quaternary ammonium compounds having unsaturated chains.
• Such compounds are typically derived from fatty acyl or fatty acid feed stock having an Iodine Value of from 20 to 140, preferably from 20 to 60, more preferably from 20 to 50, most preferably from 25 to 45.
• the unsaturated chains come from the unsaturated fatty feed stock.
• the iodine value represents the mean iodine value of the parent fatty acyl compounds or fatty acids of all of the quaternary ammonium materials present.
• the iodine value represents the mean iodine value of the parent fatty acyl compounds or fatty acids of all of the quaternary ammonium materials present.
• Iodine value is defined as the number of grams of iodine absorbed per 100 g of test material.
• NMR spectroscopy is a suitable technique for determining the iodine value of the softening agents of the present invention, using the method described in Anal. Chem. , 34, 1136 (1962) by Johnson and Shoolery and in EP 593,542 (Unilever, 1993) .
• the quaternary ammonium compound is preferably present in the compositions of the invention at a level of from 2 % to 55 %, preferably from 3 % to 50 %, more preferably from 4 % to 40 % preferably from 5 % to 25 %, by weight of the total composition, for example from 6 to 20 % by weight.
• the quaternary ammonium compound may be present at a level of greater than 80 %, preferably 90 % by weight of the total composition.
• the preferred quaternary ammonium fabric conditioner for use in compositions of the present invention are the so called "ester quats”.
• Particularly preferred materials are the ester-linked triethanolammonium (TEA) quaternary ammonium compounds comprising a mixture of mono-, di- and tri-ester linked components.
• TAA triethanolammonium
• such TEA-based fabric softening compounds comprise a mixture of mono, di- and tri-ester forms of the compound.
• the di-ester linked component comprises no more than 70 % by weight of the fabric softening compound, preferably no more than 60 %, e.g. no more than 55 %, or even no more than 45 % of the fabric softening compound and at least 10 % of the monoester linked component .
• a first group of quaternary ammonium compounds (QACs) suitable for use in the present invention is represented by formula (I) :
• each R is independently selected from a C5-35 alkyl or alkenyl group;
• R 1 represents a C1-4 alkyl, C2-4 alkenyl or a Ci-4 hydroxyalkyl group;
• T is generally O-CO. (i.e. an ester group bound to R via its carbon atom) , but may alternatively be CO.
• O i.e. an ester group bound to R via its oxygen atom
• n is a number selected from 1 to 4
• m is a number selected from 1, 2, or 3;
• X ⁇ is an anionic counter-ion, such as a halide or alkyl sulphate, e.g. chloride or methylsulphate .
• TEA ester quats preparations which are rich in the di-esters of triethanolammonium methylsulphate, otherwise referred to as "TEA ester quats".
• TetranylTM ex Kao TetranylTM ex Kao
• AT-I di- [tallow ester] of triethanolammonium methylsulphate
• L5/90 di- [palm ester] of triethanolammonium methylsulphate
• both ex Kao and RewoquatTM WE15 (a di-ester of triethanolammonium methylsulphate having fatty acyl residues deriving from C10-C20 and C16-C18 unsaturated fatty acids)
• Stepantex Ex Stepan
• a second group of quaternary ammonium compounds suitable for use in the invention is represented by formula (II) :
• each R 1 group is independently selected from C1-4 alkyl, hydroxyalkyl or C2-4 alkenyl groups; and wherein each R 2 group is independently selected from Cs-28 alkyl or alkeny groups; and wherein n, T, and X ⁇ are as defined above.
• Preferred materials of this second group include 1,2 bis [ tallowoyloxy] -3-trimethylammonium propane chloride, 1,2 and 1 , 2-bis [oleoyloxy] -3-trimethylammonium propane chloride Such materials are described in US 4,137,180 (Lever Brothers) . Preferably, these materials also comprise an amount of the corresponding mono-ester.
• a third group of quaternary ammonium compounds suitable for use in the invention is represented by formula (III) :
• each R 1 group is independently selected from C1-4 alkyl, or C 2 _ 4 alkenyl groups; and wherein each R 2 group is independently selected from Cs- 2 8 alkyl or alkenyl groups; and n, T, and X ⁇ are as defined above.
• Preferred materials of this third group include bis (2-tallowoyloxyethyl) dimethyl ammonium chloride.
• compositions of the invention are preferably free from perfume.
• the malodour reducing effect of the sugar esters are such that perfume is not required to mask the malodour.
• the compositions of the present invention may, however, comprise one or more perfumes if desired.
• the perfume is preferably present in an amount from 0.01 to 10 % by weight, more preferably from 0.05 to 5 % by weight, even more preferably from 0.1 to 4.0 %, most preferably from 0.2 to 4.0 % by weight, based on the total weight of the composition.
• Useful components of the perfume include materials of both natural and synthetic origin. They include single compounds and mixtures. Specific examples of such components may be found in the current literature, e.g., in Fenaroli's
• perfume in this context is not only meant a fully formulated product fragrance, but also selected components of that fragrance, particularly those which are prone to loss, such as the so-called ⁇ top notes' .
• Top notes are defined by Poucher (Journal of the Society of Cosmetic Chemists 6(2) : 80 [1955]) .
• Examples of well known top-notes include citrus oils, linalool, linalyl acetate, lavender, dihydromyrcenol, rose oxide and cis-3-hexanol .
• Top notes typically comprise 15-25%wt of a perfume composition and in those embodiments of the invention which contain an increased level of top-notes it is envisaged at that least 20%wt would be present within the encapsulate.
• perfume or pro-fragrance may be encapsulated, typical perfume components which it is advantageous to encapsulate, include those with a relatively low boiling point, preferably those with a boiling point of less than 300, preferably 100-250 Celsius and pro-fragrances which can produce such components.
• perfume components which have a low Clog P (ie. those which will be partitioned into water), preferably with a Clog P of less than 3.0.
• Clog P ie. those which will be partitioned into water
• materials, of relatively low boiling point and relatively low Clog P have been called the "delayed blooming" perfume ingredients and include the following materials :
• Preferred non-encapsulated perfume ingredients are those hydrophobic perfume components with a ClogP above 3.
• ClogP means the logarithm to base 10 of the octanol/water partition coefficient (P) .
• the octanol/water partition coefficient of a PRM is the ratio between its equilibrium concentrations in octanol and water. Given that this measure is a ratio of the equilibrium concentration of a PRM in a non-polar solvent (octanol) with its concentration in a polar solvent (water) , ClogP is also a measure of the hydrophobicity of a material--the higher the ClogP value, the more hydrophobic the material.
• ClogP values can be readily calculated from a program called "CLOGP" which is available from Daylight Chemical Information Systems Inc., Irvine Calif., USA. Octanol/water partition coefficients are described in more detail in U.S. Pat. No. 5,578,563.
• Perfume components with a ClogP above 3 comprise: Iso E super, citronellol, Ethyl cinnamate, Bangalol, 2,4,6- Trimethylbenzaldehyde, Hexyl cinnamic aldehyde, 2,6-
• compositions of the present invention it is envisaged that there will be four or more, preferably five or more, more preferably six or more or even seven or more different perfume components from the list given of delayed blooming perfumes given above and/or the list of perfume components with a ClogP above 3 present in the perfume.
• perfumes with which the present invention can be applied are the so-called ⁇ aromatherapy' materials. These include many components also used in perfumery, including components of essential oils such as Clary Sage, Eucalyptus, Geranium, Lavender, Mace Extract, Neroli, Nutmeg, Spearmint, Sweet Violet Leaf and Valerian.
• the SPEs for use in the invention described above can be used in encapsulated form along with perfume .
• Co-softeners may be used. When employed, they are typically present at from 0.1 to 20% and particularly at from 0.5 to 10%, based on the total weight of the composition.
• Preferred co-softeners include fatty esters, and fatty N- oxides.
• Fatty esters that may be employed include fatty monoesters, such as glycerol monostearate, fatty sugar esters, such as those disclosed WO 01/46361 (Unilever) .
• compositions of the present invention will preferably comprise a fatty complexing agent.
• suitable fatty complexing agents include fatty alcohols and fatty acids. Of these, fatty alcohols are most preferred. - I i
• the fatty complexing material improves the viscosity profile of the composition by complexing with mono-ester component of the fabric conditioner material thereby providing a composition which has relatively higher levels of di-ester and tri-ester linked components.
• the di-ester and tri-ester linked components are more stable and do not affect initial viscosity as detrimentally as the mono-ester component.
• compositions comprising quaternary ammonium materials based on TEA may destabilise the composition through depletion flocculation .
• depletion flocculation is significantly reduced.
• the fatty complexing agent at the increased levels as required by the present invention, "neutralises" the mono-ester linked component of the quaternary ammonium material. This in situ di-ester generation from mono-ester and fatty alcohol also improves the softening of the composition .
• Preferred fatty acids include hardened tallow fatty acid (available under the trade name PristereneTM, ex Uniqema) .
• Preferred fatty alcohols include hardened tallow alcohol (available under the trade names StenolTM and HydrenolTM, ex Cognis and LaurexTM CS, ex Albright and Wilson) .
• the fatty complexing agent is preferably present in an amount greater than 0.3 to 5% by weight based on the total weight of the composition. More preferably, the fatty component is present in an amount of from 0.4 to 4%.
• the weight ratio of the mono-ester component of the quaternary ammonium fabric softening material to the fatty complexing agent is preferably from 5:1 to 1:5, more preferably 4:1 to 1:4, most preferably 3:1 to 1:3, e.g. 2:1 to 1:2.
• compositions may further comprise a nonionic surfactant, especially where the level of quaternary ammonium compound is above about 8 % by weight of the total composition. Typically these can be included for the purpose of stabilising the compositions.
• Suitable nonionic surfactants include addition products of ethylene oxide and/or propylene oxide with fatty alcohols, fatty acids and fatty amines. Any of the alkoxylated materials of the particular type described hereinafter can be used as the nonionic surfactant.
• Suitable surfactants are substantially water soluble surfactants of the general formula:
• R is selected from the group consisting of primary, secondary and branched chain alkyl and/or acyl hydrocarbyl groups; primary, secondary and branched chain alkenyl hydrocarbyl groups; and primary, secondary and branched chain alkenyl-substituted phenolic hydrocarbyl groups; the hydrocarbyl groups having a chain length of from 8 to about 25, preferably 10 to 20, e.g. 14 to 18 carbon atoms.
• Y is typically:
• R has the meaning given above or can be hydrogen; and Z is at least about 8, preferably at least about 10 or 11.
• the nonionic surfactant has an HLB of from about 7 to about 20, more preferably from 10 to 18, e.g. 12 to 16.
• GenapolTM C200 (Clariant) based on coco chain and 20 EO groups is an example of a suitable nonionic surfactant.
• the nonionic surfactant is present in an amount from 0.01 to 10%, more preferably 0.1 to 5 by weight, based on the total weight of the composition.
• Alternative stabilising agents may be used.
• Alternative stabilisers include single long chain ethoxylated cationic surfactant with a counter ion which is preferably an alkyl sulphate, such as methyl sulphate and ethyl sulphate, and most preferably is a methylsulphate counter-ion.
• the single long chain cationic surfactants alternatives are alkoxylated cationic quaternary ammonium surfactants.
• Those suitable for use in this invention are generally derived from fatty alcohols, fatty acids, fatty methyl esters, alkyl substituted phenols, alkyl substituted benzoic acids, and/or alkyl substituted benzoate esters, and/or fatty acids that are converted to amines which can optionally be further reacted with another long chain alkyl or alkyl-aryl group; this amine compound is then alkoxylated with one or two alkylene oxide chains each having less than or equal to about 50 moles alkylene oxide moieties (e.g. ethylene oxide and/or propylene oxide) per mole of amine.
• alkylene oxide moieties e.g. ethylene oxide and/or propylene oxide
• Typical of this class are products obtained from the quaternization of aliphatic saturated or unsaturated, primary, secondary, or branched amines having one hydrocarbon chain from about 12 to about 22 carbon atoms alkoxylated with one or two alkylene oxide chains on the amine atom each having less than or equal to about 50 alkylene oxide moieties.
• the amine hydrocarbons for use herein have from about 12 to about 22 carbon atoms, and are preferably in a straight chain configuration.
• Suitable quaternary ammonium surfactants are made with one or two alkylene oxide chains attached to the amine moiety, in average amounts of less than or equal to about 50 moles of alkylene oxide per alkyl chain, more preferably from about 3 to about 20 moles of alkylene oxide, and most preferably from about 5 to about 12 moles of alkylene oxide per hydrophobic, e.g., alkyl group.
• Suitable stabilizers of this type include Ethoquad® 18/25, C/25, and 0/25 from Akzo and Variquat®-66 (soft tallow alkyl bis (polyoxyethyl) ammonium ethyl sulfate with a total of about 16 ethoxy units) from Goldschmidt.
• the compounds of the ammonium alkoxylated cationic surfactants have the following general formula: ⁇ Rl m -Y- [ ( R2 -O ) z -H ] p ⁇ + X "
• Preferred commercial surfactants include Tomah QC-15, cocopoly (15) oxyethylene methyl ammonium chloride (ex Tomah Products) ; and Rewoquat CPEM, coco pentaethoxymethyl ammonium methosulphate (ex Witco) .
• non-ionic stabilisers are the long chain cationic surfactants based on quaternized amido-amine surfactants of the general structure;
• Rl C12-30-alkyl, -alkenyl, -arylalkyl, and - (cycloalkyl) alkyl;
• R2 and R3 H or Cl-4-alkyl;
• R4 and R5 Cl-4-alkyl, -alkoxyalkyl, and -hydroxyalkyl;
• Preferred commercial surfactants include Rewoquat V3351, a tallow alkyl amido-amine methyl sulphate quat (ex Goldschmidt) , Surfac ARF, a tallow amine ethoxy ammonium methyl sulphate (ex Surfachem) .
• amido-amine single long chain cationic surfactants for use in the present invention may be alkoxylated.
• These alkoxylated amido-amine single chain cationic surfactants comprise one or more alkylene oxide chains each having less than or equal to about 50 moles alkylene oxide moieties (e.g. ethylene oxide and/or propylene oxide) per mole of amine.
• the preferred alkoxylated surfactants for use in the present invention comprise at least one ethoxylate group.
• WO 95/27771 and include amphoteric surfactants including betaines and tegobetaines .
• amphoteric surfactants including betaines and tegobetaines .
• compositions of the invention may contain one or more other ingredients.
• ingredients include photobleaches, fluorescent agents, dyes, preservatives (e.g. bactericides), pH buffering agents, perfume carriers, hydrotropes, anti- redeposition agents, soil-release agents, polyelectrolytes, anti-shrinking agents, anti-wrinkle agents, anti-oxidants, sunscreens, anti-corrosion agents, drape imparting agents, anti-static agents and ironing aids.
• the products of the invention preferably contain pearlisers and/or opacifiers.
• cationic polymeric deposition aids include cationic guar polymers such as JaguarTM (ex Rhone Poulenc) , cationic cellulose derivatives such as CelquatsTM (ex National Starch) , FlocaidTM (ex National Starch) , cationic potato starch such as SoftGelTM (ex Aralose) , cationic polyacrylamides such as PCG (ex Allied Colloids) .
• a composition for use in the invention may be in dry solid or liquid form.
• the composition may be a concentrate to be diluted, rehydrated and/or dissolved in a solvent, including water, before use.
• the composition may also be a ready-to- use (in-use) composition.
• the composition is provided as a ready to use liquid comprising an aqueous phase.
• the aqueous phase may comprise water-soluble species, such as mineral salts or short chain (C1-4) alcohols .
• the mineral salts may aid the attainment of the required phase volume for the composition, as may water soluble organic salts and cationic deflocculating polymers, as described in EP 41,698 A2 (Unilever) .
• Such salts may be present at from 0.001 to 1% and preferably at from 0.005 to 0.1% by weight of the total composition.
• suitable mineral salts for this purpose include calcium chloride and magnesium chloride.
• the compositions of the invention may also contain pH modifiers such as hydrochloric acid.
• the short chain alcohols include primary alcohols, such as ethanol, propanol, and butanol, and secondary alcohols such as isopropanol. The short chain alcohol may be added with the cationic softening agent during the preparation of the composition.
• the composition is preferably a fabric softener or fabric conditioner composition, and is preferably for use in the rinse cycle of a home textile laundering operation, where, it may be added directly in an undiluted state to a washing machine, e.g. through a dispenser drawer or, for a top- loading washing machine, directly into the drum. Alternatively, it can be diluted prior to use.
• the compositions may also be used in a domestic hand-washing laundry operation.
• the compositions of the invention are not detergent compositions and are preferably substantially free (for example having less than 0.1 weight %, preferably less than 0.05 weight % by weight of the total composition), more preferably free from one or more detersive surfactants such as anionic, ampholytic, zwitterionic surfactants, and cleaning soaps.
• compositions of the present invention can be used in industrial laundry operations, e.g. as a finishing agent for softening new clothes prior to sale to consumers.
• the cationic softening agent and SPE, and any optional components such as co- softener or complexing agent are heated together until a co- melt is formed. Water and other components are heated and the co-melt is added to the water with stirring.
• SPE SPE
• Alternative methods of addition for the SPE will be to post dose it at the end of the process, as is, or as an emulsion. If the SPE is solid the batch temperature should be above its melting point for its emulsification by the softener active.
• Example 1 Preparation of Compositions 4-7, Comparative Examples 1-3 and Control A
• Compositions 4-7, Comparative Examples 1-3 and Control A were prepared in a bench top mixer equipped with a top 3- stage stirrer and a recirculation bath for temperature control.
• the quaternary softening agent, SPE, and complexing agent were heated together until a co-melt was formed. Water was heated and the co-melt added to the water with stirring. The batch was cooled to room temperature.
• THSBO Clariant
• Clariant is a pure sucrose polyester based on touch hardened soya bean oil.
• ER290 (ex Mitsubishi) is a food grade pure sucrose polyester based on C22:l erucic acid.
• SCR-PK-H (ex KAO) is a sucrose polyester derived from hardened palm kernel oil (C16 and mainly C18) and contains about 20% impurities mainly fatty acids and soaps as specified in WO2006/076952 Al (Unilever) .
• composition of Compositions 4-7, Comparative Examples 1- 3 and Control A are given in Table 1 below.
• Table 1 Composition of Compositions 4-7, Comparative Examples 1-3 and Control A
• Stepantex VT90 is a soft tallow TEA quaternary ammonium softening compound containing 90 % active and 10 % IPA.
• Stenol 16/18 L is a fatty alcohol (complexing agent) with a mixture of C16 and C18 saturated chains.
• Table 2 gives the ester distributions of the ER290 and SCR- PK sucrose polyesters used in these examples.
• Table 3 gives the level of unsaturation and the odour description of the quaternary ammonium compound VT90.
• Table 3 Chain distribution and odour description of VT90
• sucrose polyesters were as follows :- THSBO - neutral to very slightly oily ER290 - neutral to very slightly oily SCR-PK-H - slightly caramel (sucrose caramelised in synthesis process) .
• Example 2 Evaluation of the base odour from Comparative Examples 1-3
• Terry towelling monitors measuring about 20 x 20 cm were desized by twice washing in a washing machine at 90 0 C. Sets of two monitors were placed in Tergo pots with 1 litre of demineralised water per pot and agitated for 10 minutes.
• the Tergos were dosed with the formulations in the amounts shown in Table 3 below and allowed to agitate for a further 15 minutes. The monitors were then removed and spinned and line dried.
• Table 4 shows the amount of product used in each treatment to equalise the amount of VT90 deposited on the monitors.
• Table 4 Product dosage in Tergo-to-meters and the level of VT90 and sucrose polyester deposited per monitor for Comparative Example A and Compositions 1-3.
• the monitors were line dried for three days. Then one monitor of each set was presented to an expert panel for odour evaluation whilst the other was kept in a bottle under fluorescent light (for build-up of odour) .
• the odour descriptors used were based on those known in the art. The panel members described the odour and assigned a number to quantify the intensity of the odour they perceived. Table 5 summarises the outcome of this evaluation.
• Table 5 The average (of eight panellists) odour intensity and odour description of the treated monitors for monitors aged on line for three days.
• the panel results show that there is very little difference between Compositions 1-3 and Control A. There was a directional worsening of the smell in presence of soyabean sucrose polyester and the rancid smell of oil was noticed by the panel.
• Table 6 The product dosage in Tergo-to-meters and the level of VT90 and sucrose polyesters deposited per monitor.
• the monitors were line dried and on the first day one set presented to the panel and another set stored in bottles for later evaluation.
• Table 6 summarises the odour quality and scores .
• Table 7 Average (of 8 panellists) odour intensity and odour quality of day 1 of treated monitors.
• sucrose esters have efficiently suppressed the base odour of the soft tallow active on the monitors.
• the monitors kept in bottles were presented to the panel after five days.
• the scores are summarised in Table 7.
• the monitors with sucrose polyesters in accordance with the invention have reduced the base odour efficiently and have a clean smell.
• the monitors with SCR-PK-H were surprisingly preferred by the panel for softness.

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• 2009
  • 2009-04-24 CN CN2009801210979A patent/CN102057027B/zh not_active Expired - Fee Related
  • 2009-04-24 WO PCT/EP2009/054956 patent/WO2009146981A1/en active Application Filing
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  • 2009-05-28 AR ARP090101904A patent/AR071932A1/es unknown
• 2010
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