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
  • 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
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
  • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
  • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
  • D06M13/46—Compounds containing quaternary nitrogen atoms
• • 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
  • C11D17/0026—Structured liquid compositions, e.g. liquid crystalline phases or network containing non-Newtonian phase
• • 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
  • C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
  • C11D3/225—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin etherified, e.g. CMC
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/20—Organic compounds containing oxygen
  • C11D3/22—Carbohydrates or derivatives thereof
  • C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
  • C11D3/227—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin with nitrogen-containing groups
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/20—Organic compounds containing oxygen
  • C11D3/22—Carbohydrates or derivatives thereof
  • C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
  • C11D3/228—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin with phosphorus- or sulfur-containing groups
• • 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
  • C11D3/3765—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in 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
  • 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
  • C11D3/3769—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines
  • C11D3/3773—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines in liquid compositions

Definitions

• the present invention relates to fabric treatment compositions in aqueous medium and containing a relatively high proportion of fabric conditioner.
• the present invention relates to fabric treatment compositions which comprise as conditioners one or more fabric-softening materials and one or more emulsion forming components to result in a structure of a dispersion of an emulsion and a dispersion of lamellar droplets in a continuous aqueous phase.
• Lamellar droplets are a particular class of surfactant structures which, inter alia , are already known from a variety of references, e.g. H.A.Barnes, 'Detergents', Ch.2. in K.Walters (Ed), 'Rheometry: Industrial Applications', J.Wiley & Sons, Letchworth 1980.
• Lamellar fabric-softening compositions are for example known from EP 303 473 (Albright and Wilson). This patent application describes fabric-softening compositions comprising an aqueous base, a cationic fabric softener having two long alkyl or alkenyl groups and dissolved electrolyte to form an optically anisotropic spherulitic composition.
• lamellar droplets in a fabric-softening product may be detected my means known to those skilled in the art, for example optical techniques, various rheometrical measurements, X-ray or neutron diffraction, and electron microscopy.
• the droplets consist of an onion-like configuration of concentric bi-layers of molecules of fabric-softening material, between which is trapped water or electrolyte solution (aqueous phase).
• Systems in which such droplets are nearly or fully close-packed provide a very desirable combination of physical stability and useful flow properties.
• the viscosity and stability of the fabric softening composition There are two main factors determining the viscosity and stability of the fabric softening composition, the combined volume fraction of the dispersed lamellar phase and the emulsion and their state of aggregation. Generally speaking, the higher the volume fraction of the dispersed lamellar phase (droplets) and emulsion phase (particles), the higher the viscosity which in the limit can result in an unpourable or gelled product. When the volume fraction is around 0.6, or higher, the droplets are just touching (space-filling). This allows reasonable stability with an acceptable viscosity (say no more than 2.5 Pas, preferably no more than 1 Pas most preferably no more than 0.5Pas at a shear rate of 21s ⁇ 1).
• flocculation of the particles can also occur.
• the lamellar dispersion can cause depletion flocculation of the emulsion component.
• Flocculation of either the lamellar dispersion or the emulsion can lead to instability because reduction of the inter-particle inter-droplet spacings will make their packing more efficient. Consequently, more lamellar droplets or emulsion will be required for stabilisation which will again lead to a further increase of the viscosity.
• the volume fraction of the droplets is increased by increasing the softener concentration, and may be reduced by increasing the electrolyte level.
• the stability of the emulsion component is very sensitive to electrolyte levels. When electrolyte is added to an emulsion it reduces the effects of depletion but the levels required to prevent depletion are sufficient to cause flocculation of the emulsion by an electrostatic mechanism and thus the problem is not solved.
• the present invention relates to a fabric treatment composition
• a fabric treatment composition comprising an aqueous base, one or more fabric-softening materials, and an emulsion component, said composition having a structure of lamellar droplets of the fabric-softening material in combination with an emulsion, said composition also comprising a deflocculating polymer comprising a hydrophilic backbone and one or more hydrophobic side chains.
• the deflocculating polymer allows, if desired, the incorporation of greater amounts of softening materials and/or emulsion components than would otherwise be compatible with the need for a stable, easily dispersable product of acceptable viscosity. It also allows (if desired) incorporation of greater amounts of certain other ingredients to which lamellar dispersions and emulsions have been highly stability-sensitive.
• the present invention allows formulation of stable, pourable products wherein the volume fraction of the lamellar droplets and the emulsion is 0.5 or higher.
• the volume fraction of the lamellar droplet phase and emulsion component may be determined by the following method.
• the composition is centrifuged, say at 40,000 G for 12 hours, to separate the composition into a clear (continuous aqueous) layer, a turbid active-rich (lamellar/emulsion) layer and (if solids or liquids are suspended) a third layer.
• the conductivity of the continuous aqueous phase, the lamellar phase and of the total composition before centrifugation are measured. From these, the volume fraction of the lamellar phase and emulsion component is calculated or estimated, using the Bruggeman equation, as disclosed in American Physics, 24 , 636 (1935).
• the volume fraction of the emulsion component can be calculated if desired, provided the density is known and the volume fraction of the lamellar phase calculated.
• the viscosity of the aqueous continuous phase is less than 25mPas, most preferably less than 15mPas, especially less than 10mPas, these viscosities being measured using a capillary viscometer, for example an Ostwald viscometer.
• the term 'deflocculating' in respect of the polymer means that the equivalent composition, minus the polymer, has a significantly higher viscosity and/or becomes unstable. It is not intended to embrace the use of polymers which would increase the viscosity but not enhance the stability of the composition. It is also not intended to embrace polymers which would lower the viscosity simply by a dilution effect, i.e. only by adding to the volume of the continuous phase.
• relatively high levels of the deflocculating polymers can be used in those systems where a viscosity reduction is brought about; typically levels as low as from about 0.01% by weight to about 5.0% by weight can be capable of reducing the viscosity at 21 s ⁇ 1 by up to 2 orders of magnitude.
• Especially preferred embodiments of the present invention exhibit less phase separation on storage and have a lower viscosity than an equivalent composition without any of the deflocculating polymer.
• stability for these systems can be defined in terms of the maximum separation compatible with most manufacturing and retail requirements. That is, the 'stable' compositions will yield no more than 2% by volume phase separation as evidenced by appearance of 2 or more separate phases when stored at 25°C for 21 days from the time of preparation.
• such systems may be stable or unstable, according to whether or not the droplets or particles are flocculated.
• the degree of phase separation may be relatively small, e.g. as for the unstable non-flocculated systems with the lower volume fraction.
• the phase separation will often not manifest itself by the appearance of a distinct layer of continuous phase but will appear distributed as 'cracks' throughout the product. The onset of these cracks appearing and the volume of the material they contain are almost impossible to measure to a very high degree of accuracy.
• Especially preferred embodiments of the present invention yield less than 0.1% by volume visible phase separation after storage at 25°C for 21 days from the time of preparation.
• compositions according to the invention may contain only one, or a mixture of deflocculating polymer types.
• the term 'polymer types' is used because, in practice, nearly all polymer samples will have a spectrum of structures and molecular weights and often impurities.
• any structure of deflocculation polymers described in this specification refers to polymers which are believed to be effective for deflocculation purposes as defined hereabove. In practice these effective polymers may constitute only part of the polymer sample, provided that the amount of deflocculation polymer in total is sufficient to effect the desired deflocculation effects.
• any structure described herein for an individual polymer type refers to the structure of the predominating deflocculating polymer species and the molecular weight specified is the weight average molecular weight of the deflocculation polymers.
• Suitable deflocculating polymer types for use in compositions of the invention are for instance described in our copending European patent application 89201530.6 and in our copending British patent applications 8924479.2, 8924478.4 and 8924477.6.
• a preferred class of polymers are biodegradeable polymers having a hydrophilic backbone and at least one hydrophobic side chain.
• the basic structure of polymers having a hydrophilic backbone and one or more hydrophobic side chains is described in EP 89201530.6.
• the hydrophilic backbone of the polymer generally is a linear, branched or cross-linked molecular composition containing one or more types of relatively hydrophilic monomer units, possibly in combination with minor amounts of relatively hydrophobic units.
• the only limitations to the structure of the hydrophilic backbone are that the polymer must be suitable for incorporation in an active-structured aqueous liquid softener composition and the hydrophilic backbone is relatively soluble in water in that the solubility in water of 20°C at a pH of 7.0 is preferably more than 1 g/l, more preferably more than 5 g/l, most preferably more than 10 g/l.
• the hydrophilic backbone is predominantly linear in that the main chain of the backbone constitutes at least 50% by weight, preferably more than 75%, most preferably more than 90% by weight of the backbone.
• the hydrophilic backbone is constituted by monomer units, which can be selected from a variety of units available for the preparation of polymers.
• the polymers can be linked by any possible chemical link, although the following types of linkages are preferred:
• Water-soluble monomers suitably employed to form the hydrophilic backbone are for example those which are sufficiently water-soluble to form at least a one weight percent solution when dissolved in water and readily undergo polymerisation to form polymers which are water-soluble at ambient temperature and at a pH of 3.0 to 12.5, preferably more than 1 gram per litre, more preferably more than 5 grams per litre, most preferably more than 10 grams per litre.
• Exemplary water-soluble monomers include ethylenically unsaturated amides such as acrylamide, methacrylamide and fumaramide and their N-substituted derivatives such as 2-acrylamido-2-methylpropane sulphonic acid, N-(dimethylaminomethyl) acrylamide as well as N-(trimethylammoniummethyl) acrylamide chloride and N-(trimethylammoniumpropyl) methacrylamide chloride; ethylenically unsaturated carboxylic acids or dicarboxylic acids such as acrylic acid, maleic acid, methacrylic acid, itaconic acid, fumaric acid, crotonic acid, aconitic acid and citroconic acid; and other ethylenically unsaturated quaternary ammonium compounds such as vinylbenzyl trimethyl ammonium chloride; sulphoalkyl esters of unsaturated carboxylic acids such as 2 sulphoethyl methacrylate; aminoalkyl est
• the hydrophilic backbone may contain small amounts of relatively hydrophobic units, e.g. those derived from polymers having a solubility of less than 1 g/l in water, provided that the overall solubility of the hydrophilic polymer backbone still satisfies the solubility requirements as specified here above.
• relatively water-insoluble polymers are polyvinyl acetate, polymethyl methacrylate, polyethyl acrylate, polyethylene, polypropylene, polystyrene, polybutylene oxide, polypropylene oxide, polyhydroxypropyl acrylate.
• Suitable hydrophobic monomers for forming the side chains generally include those which are (1) water-insoluble, i.e. less than 0.2 weight part of the hydrophobic monomer will dissolve in 100 weight parts water and (2) ethylenically unsaturated compounds having hydrophobic moieties.
• the hydrophobic moieties (when isolated from their polymerisable linkage) are relatively water-insoluble, preferably less than 1 g/l, more preferably less than 0.5 g/l, most preferably less than 0.1 g/l at ambient temperature and a pH of 3.0 to 12.5.
• the hydrophobic moieties preferably have at least 3 carbon atoms and are most preferably pendant organic groups having hydrophobicities comparable to one of the following: aliphatic hydrogen groups having at least three carbons such as C3 to C50 alkyls and cycloalkyls; polynuclear aromatic hydrocarbon groups such as napthyls; alkylaryls wherein the alkyl groups has one or more carbons; haloalkyls of 3 or more carbons, preferably perfluoroalkyls; polyalkyleneoxy groups wherein alkylene is propylene or high alkylene and there is at least one alkyleneoxy unit per hydrophobic moiety; and siloxane moieties.
• Exemplaryhydrophobic monomers include butyl acrylate, isobutyl acrylate, 2-ethylhexyl acrylate and the corresponding methacrylates, the higher alkyl esters of alpha, beta-ethylenically unsaturated carboxylic acids such as dodecyl acrylate, dodecyl methacrylate, tridecyl acrylate, tridecyl, methacrylate, tetradeculacrylate, octadecyl acrylate, octadecyl methacrylate, octyl half ester of maleic anhydride, doictyl diethyl maleate, and other alkyl esters and half esters derived from the reactions of alkanols having from 3 to 50 carbon atoms with ethylenically unsaturated carboxylic acids such as acrylic acid, methacrylic acid, maleic anhydride, fumaric acid, itaconic acid and aconi
• the hydrophobic monomer may be used singly or mixtures thereof may be employed.
• the ratio of hydrophilic to hydrophobic monomers may vary from about 500:1 to 5:1.
• the weight average molecular weights (Mw.) of the resultant polymers vary from 500 to 500,000 or above when measured by gel permeation chromatography using a polyacrylate standard, or by specific viscosity (SV) measurements using a polyacrylate standard.
• Products of the invention preferably comprise polymers of the general formula: wherein z is 1; (x+y):z is from 4:1 to 1,000:1; preferably from 6:1 to 250:1 in which the monomer units may be in random order; y being from 0 up to a maximum equal to the value of x; and n is at least 1; R1 represents -CO-O, -O-, -O-CO-, -CH2-, -CO-NH- OR is absent; R2 represents from 1 to 50 independently selected alkyleneoxy groups, preferably ethylene oxide or propylene oxide groups, or is absent, provided that when R3 is absent and R4 represents hydrogen, then R2 must contain an alkyleneoxy group with at least 3 carbon atoms; R3 represents a phenylene linkage, or is absent; R4 represents hydrogen or a C1 ⁇ 24 alkyl or C2 ⁇ 24 alkenyl group, with the provisos that:
• R2 when R2 is absent, R4 is not hydrogen and when R3 is also absent then R4 must contain at least 5 carbon atoms;
• R5 represents hydrogen or a group of formula -COOA4;
• R6 represents hydrogen or C14 alkyl;
• A1, A2, A3 and A4 are independently selected from hydrogen, alkali metals, alkaline earth metals, ammonium and amine bases and C1 ⁇ 4, or (C2H4O) t H wherein t is from 1-50, and wherein the monomer units may be in random order.
• Each B1 is independently selected from -CH2OH, -OH or -H.
• Another class of polymers in accordance with the present invention comprises those of formula II: wherein: Q2 is a molecular entity of formula IIa: wherein z and R1 ⁇ 6 are as defined for formula (I); A1 ⁇ 4 are as defined for formula (I); Q1 is a multifunctional monomer, allowing the branching of the polymer, wherein the monomers of the polymer may be connected to Q1 in any direction, in any order, therewith possibly resulting in a branched polymer.
• Q1 is trimethyl propane triacrylate (TMPTA), methylene bisacrylamide or divinyl glycol; n and z are as defined above; v is 1; and (x + y + p + q + r):z is from 5:1 to 500:1; in which the monomer units may be in random order; and preferably either p and q are zero, or r is zero; R7 and R8 represent -CH3 or -H; R9 and R10 represent substituent groups such as amino, amine, amide, sulphonate, sulphate, phosphonate, phosphate, hydroxyl, carboxyl and oxide groups, or (C2H4O) t H, wherein t is from 1-50, and wherein the monomer units may be in random order.
• TMPTA trimethyl propane triacrylate
• n and z are as defined above; v is 1; and (x + y + p + q + r):z is from 5:1 to 500:1
• polymers of formulae I and II are in the form of a salt
• they are selected from -SO3Na, -CO-O-C2H4, -OSO3Na, -CO-NH-C(CH3)2-CH2-SO3Na, -CO-NH2, -O-CO-CH3, -OH.
• polymers of formulae I and II are in the form of a salt
• usually some polymers will be full salts (A1-Ay4 all other than hydrogen), some will be full acids (A1-A4 all hydrogen) and some will be part-salts (one or more A1-A4 hydrogen and one or more other than hydrogen).
• the salts of the polymers of formulae I and II may be formed with any organic or inorganic cation defined for A1-A4 and which is capable of forming a water-soluble salt with a low molecular weight carboxylic acid.
• Preferred are the alkali metal salts, especially of sodium or potassium.
• Another class of polymers in accordance with the present invention comprises those of formula III: wherein Q3 is derived from a monomeric unit IIIa comprising: Q4 is derived from the molecular entity IIIb: and Q5 is derived from a monomeric unit IIIc: R1-R6 are defined as in formula I; (a + b + c): Q4 is from 5:1 to 500:1, in which the monomer units may be in random order, a, b, c, d, e, f, g, h may be an integer or zero, n is at least 1; B1, B2, B3, B4 are organic or inorganic anions; w is zero to 4; R11 is independently selected from hydrogen or C1-C4 alkyl; and R12 is independently selected from C5 to C24 alkyl or alkenyl, aryl cycloalkyl, hydroxyalkyl or alkoxyalkyl.
• the anions represented by B1, B2, B3, B4 are exemplified by the halide ions, sulphate, sulphonate, phosphate, hydroxide, borate, cyanide, carbonate, bicarbonate, thiocyanate, sulphide, cyanate, acetate and the other common inorganic and organic ions.
• Preferred anions are chloride and methosulphate.
• Another class of polymers in accordance with the present invention comprise those of formula IV where R1-R6 are defined as in formula I, z is 1 and j:z is from 5:1 to 500:1, in which the monomer units may be in random order, and n is at least 1; R13 represents -CH2-, -C2H4-, -C3H6- or is absent. R14 represents from 1 to 50 independently selected alkyleneoxy groups, preferably ethylene oxide groups, or is absent. R15 represents -OH or hydrogen.
• polysaccharides are hydrophobically modified polysaccharides.
• Possible sugar units for use in those polymers include glucosides and fructosides for example maltoses, fructoses, lactoses, glucoses and galactoses.
• mixtures of sugar groups may be used.
• the sugar groups may be connected to each other via any suitable linkage, although 1-4 linkages and/or 1-6 linkages are preferred.
• the polysaccharides are preferably predominantly linear, but also branched polymers may be used.
• R 7′ is R7 or -R1-R2-R3-R4;
• R7 is independently selected from -OH, -NH-CO-CH3, -SO3A1, -OSO3A1, -NHSO3A1, -COOA1;
• R7 is preferably -OH n is the total number of -R1-R2-R3-R4 groups per molecule; n is at least 1;
• m is the total number of R7 and R 7′ groups that are not -R1-R2-R3-R4; the ratio m:n is from 12:1 to 3,000:1, preferably from 18:1 to 750:1; wherein the monomer units may be in random order.
• v and w are determined by the molecular weight of the polymer.
• R1 is as defined above for formula I, or can be -NHCO; -OCH2CONH; or -O-CH2-CO-O-; R2 ⁇ 4 are as defined for formula I; A1 is as defined for formula I.
• Other preferred polymers are of the formula: Wherein: z and n are as defined for formula I; (x+y): z is from 4:1 to 1,000:1, preferably from 6:1 to 250:1; y preferably being from zero up to a maximum equal to the value of x; wherein the monomer units may be in random order.
• a weigth average molecular weight in the region of from 500 to 500,000, preferably from 1000 to 200,000 more preferably from 1500 to 50,000, even more preferably from 3,000 to 6,000 when measured by GPC using polyacrylate standards.
• the molecular weights of the standards are measured by the absolute intrinsic viscosity method described by Noda, Tsoge and Nagasawa in Journal of Physical Chemistry, Volume 74, (1970), pages 710-719.
• a measure of molecular weight can be made by measuring a standard viscosity (S.V.), determined at 15.0% solids, 23°C in a 1.0 molar sodium chloride solution using a Brookfield Synchro-lectric (R) viscometer, Model LVT with an LCP adaptor, at a speed of 60 RPM. It is preferred to have a polymer with an S.V. from 1 to 100 mPas, more preferably from 2-50 mPas, most preferably 3-25 mPas.
• Polymers according to formulas V-VII preferably have a molecular weight of 500-250,000, more preferably from 2,000 to 50,000, even more preferably from 3,000 to 6,000.
• the polymers for use in compositions of the present invention are prepared by the method as described in UK Patent application No. 8813966.2.
• the deflocculating polymer will be used at from 0.01% to 5.0% by weight in the composition, preferably from 0.02 to 2.0%, most preferably from 0.03 to 1%.
• Compositions of the present invention preferably comprise from 1 to 80%, by weight of fabric-softening materials, more preferably from 2 to 70% by weight, most preferably from 5 to 50% by weight of the composition.
• the fabric softening materials may be selected from cationic, nonionic, amphoteric or anionic fabric softening material.
• Suitable amphoteric fabric-conditioning materials for use in a composition according to the invention are fabric-substantive amphoteric materials forming a particulate dispersion at a concentration of less than 1 g/l at at least one temperture between 0 and 100°C, preferably at least one temperature between 10 and 90°C, more preferably between 20 and 80°C.
• a fabric-substantive amphoteric material is preferably an amphoteric or zwitterionic tertiary or quaternary ammonium compound having either one single long hydrocarbyl side chain or two long hydrocarbyl chains. From these compounds the use of amphoteric or zwitterionic ammonium compounds having two long hydrocarbyl chains is particularly preferred for many reasons including costs, ease of processing and better stability and performance.
• Suitable amphoteric materials are for example disclosed in EP 236 213.
• hydrocarbyl chain refers to linear or branched alkyl or alkenyl chains optionally substituted or interrupted by functional groups such as -OH, -O-, -CONH-, -COO-, etc.
• amphoteric fabric-substantive materials are water insoluble and have a solubility in water at pH 2.5 at 20°C of less than 10 g/l.
• the HLB of the amphoteric fabric-substantive material is preferably less than 10.0.
• Suitable cationic fabric-softener materials for use in a composition according to the present invention are cationic materials which are water-insoluble in that the material has a solubility in water at pH 2.5 and 20°C of less than 10 g/l.
• Highly preferred materials are cationic quaternary ammonium salts having two C12-C24 hydrocarbyl chains.
• R1 and R2 represent hydrocarbyl groups from about 12 to about 24 carbon atoms
• R3 and R4 represent hydrocarbyl groups containing from 1 to about 4 carbon atoms
• X is an anion, preferably selected from halide, methosulphate and ethyl sulphate radicals.
• quaternary softeners include ditallow dimethyl ammonium chloride; ditallow dimethyl ammonium methyl sulphate; dihexadecyl dimethyl ammonium chloride; di(hydrogenated tallow) dimethyl ammonium methyl sulphate; dihexadecyl diethyl ammonium chloride; di(coconut) dimethyl ammonium chloride.
• ditallow dimethyl ammonium chloride, di(hydrogenated tallow) dimethyl ammonium chloride, di(coconut) dimethyl ammonium chloride and di(coconut) dimethyl ammonium methosulphate are preferred.
• Suitable materials also include dialkyl ethoxyl methyl ammonium methosulphate based on soft fatty acid, dialkyl ethoxyl methyl ammonium methosulphate based on hard fatty acid, and a material in which R3 and R4 represent methyl, R1 is C13 ⁇ 15, R2 is CH2CH2OCOR, where R is stearyl, and X is methosulphate.
• Ditallow dimethyl ammonium chloride, di(hydrogenated tallow alkyl) dimethyl ammonium chloride, di(coconut alkyl) dimethyl ammonium chloride and di(coconut alkyl) dimethyl ammonium methosulfate are preferred.
• R5 being tallow, which is available from Stepan under the tradename Stepantex VRH 90, and where R8, R9 and R10 are each alkyl or hydroxyalkyl groups containing from 1 to 4 carbon atoms, or a benzyl group.
• R6 and R7 are each an alkyl or alkenyl chain containing from 11 to 23 carbon atoms, and X ⁇ is a water-soluble anion.
• hydrocarbylimidazolinium salts believed to have the formula: wherein R13 is a hydrocarbyl group containing from 1 to 4, preferably 1 or 2 carbon atoms, R11 is a hydrocarbyl group containing from 8 to 25 carbon atoms, R14 is an hydrocarbyl group containing from 8 to 25 carbon atoms and R12 is hydrogen or an hydrocarbyl containing from 1 to 4 carbon atoms and A ⁇ is an anion, preferably a halide, methosulphate or ethosulphate.
• Preferred imidazolinium salts include 1-methyl-1-(tallowylamido-) ethyl -2-tallowyl- 4,5-dihydro imidazolinium methosulphate and 1-methyl-1-(palmitoylamido) ethyl -2-octadecyl-4,5- dihydroimidazolinium chloride.
• Other useful imidazolinium materials are 2-heptadecul-1-methyl-1- (2-stearylamido)ethyl-imidazolinium chloride and 2-lauryl-1-hydroxyethyl-1-oleyl-imidazolinium chloride.
• Also suitable herein are the imidazolinium fabric-softening components of US patent No. 4 127 489, incorporated by reference.
• Representative commercially available materials of the above classes are the quaternary ammonium compounds Arquad 2HT (Ex AKZO); Noramium M2SH (ex CECA); Aliquat-2HT (Trade Mark of General Mills Inc), Stepantex Q185 (ex Stepan); Stepantex VP85 (ex Stepan); Stepantex VRH90 (ex Stepan); Synprolam FS (ex ICI) and the imidazolinium compounds Varisoft 475 (Trade Mark of Sherex Company, Columbus Ohio) and Rewoquat W7500 (Trade Mark of REWO).
• compositions according to the invention may also contain, possibly in addition to the above mentioned softening agents, one or more amine softening materials.
• R15 is a C6 to C24, hydrocarbyl group
• R16 is a C1 to C24 hydrocarbyl group
• R17 is a C1 to C10 hydrocarbyl group.
• Suitable amines include those materials from which the quaternary ammonium compounds disclosed above are derived, in which R15 is R1, R16 is R2 and R17 is R3.
• the amine is such that both R15 and R16 are C6-C20 alkyl with C16-C18 being most preferred and with R17 as C1 ⁇ 3 alkyl, or R15 is an alkyl or alkenyl group with at least 22 carbon atoms and R16 and R12 are C1 ⁇ 3 alkyl.
• these amines are protonated with hydrochloric acid, orthophosphoric acid (OPA), C1 ⁇ 5 carboxylic acids or any other similar acids, for use in the fabric-conditioning compositions of the invention.
• R18 is a C6 to C24 hydrocarbyl group
• R19 is an alkoxylated group of formula -(CH2CH2O) y H, where y is within the range from 0 to 6
• R20 is an alkoxylated group of formula -(CH2CH2O) z H where z is within the range from 0 to 6 and m is an integer within the range from 0 to 6, and is preferably 3.
• m it is preferred that R18 is a C16 to C22 alkyl and that the sum total of z and y is within the range from 1 to 6, more preferably 1 to 3.
• m is 1, it is preferred that R18 is a C16 to C22 alkyl and that the sum total of x and y and z is within the range from 3 to 10.
• Representative commercially available materials of this class include Ethomeen (ex Armour) and Ethoduomeen (ex Armour).
• the amines of type (ii) or (iii) are also protonated for use in the fabric-conditioning compositions of the invention.
• amine is of type (iv) given above
• a particularly preferred material is: where R22 and R23 are divalent alkenyl chains having from 1 to 3 carbon atoms, and R24 is an acyclic aliphatic hydrocarbon chain having from 15 to 21 carbon atoms.
• a commercially available material of this class is Ceranine HC39 (ex Sandoz).
• compositions also contain an emulsion component such as hydrocarbons, perfumes, natural fats and oils, fatty acids and/or esters thereof, fatty alcohols and silicones.
• an emulsion component such as hydrocarbons, perfumes, natural fats and oils, fatty acids and/or esters thereof, fatty alcohols and silicones.
• paraffins and olefines but alkynes and halogenated paraffins such as myristyl chloride are not excluded.
• Materials known generally as paraffin oil, soft paraffin wax, petroleum and petroleum jelly are especially suitable. Examples of specific materials are tetradecane, hexadecane, octadecane and octodecene.
• Preferred perfumes are Portia 40 ex IFF Ltd, LFU 384 ex Quest and Coccoon SN3000 ex Givaudan.
• Examples of natural oils are coconut, corn, olive and sunflower as well as naturally occuring waxy solids such as lanolin.
• animal fats are butter, tallow and sardine.
• Preferred fatty acids and esters are lauric, myristic, palmitic and stearic acids, methyl laurate, ethyl myristate, ethyl stearate, methyl palmitate and ethylene glycol monostearate.
• fatty alcohols include decanol, dodecanol, tetradecanol, pentadecanol, hexadecanol and lauryl and palmityl alcohols.
• estols include isopropylmyristate.
• silicones and aminosilicones suitable for use in the invention are disclosed in DE 2 631 419 (Procter and Gamble/Dumbrell) and those supplied commercially as VP 1487E ex Wacker and the Magnasoft range ex Union Carbide.
• emulsion component is improved when the particles are positively charged.
• a cationic fabric softener it is convenient to make the fabric treatment composition in a one-stage process where the fabric softener acts as emulsifier. When this is not possible it may be necessary to make the emulsion separately in which case a separate emulsifier may be required.
• Suitable emulsifiers are single or di-alkyl ammonium salts, the esters of sorbitan, glycerol or polyethylene glycol and ethoxylated alcohols.
• the levels of emulsion component in the composition is typically from 1 to 80%, by weight preferably from 2 to 70% and most preferably from 5 to 50%.
• the compositions according to the invention may optionally contain electrolyte.
• the level of dissolved electrolyte is typically from 0% to 0.2%, preferably 0.05 to 0.2%.
• compositions according to the present invention preferably have a pH of less than 6.0, more preferred less than 5.0, especially from 1.5 to 4.5, most preferred from 2.0 to 4.0.
• compositions can also contain one or more optional ingredients selected from non-aqueous solvents such as C1-C4 alkanols and polyhydric alcohols, pH-buffering agents such as weak acids, e.g. phosphoric, benzoic or citric acids, re-wetting agents, viscosity modifiers, aluminium chlorohydrate, antigelling agents, fluorescers, colourants, hydrotropes, antifoaming agents, antiredeposition agents, enzymes, optical brightening agents, opacifiers, stabilisers such as guar gum and polyethylene glycol, anti-shrinking agents, antioxidants, anti-corrosion agnets, preservatives such as Bronopol (Trade Mark), a commercially available form of 2-bromo-2-nitropropane-1,3-diol, to preserve the fabric treatment composition, dyes, bleaches and bleach precursors, drape-imparting agents, antistatic agents and ironing aids.
• pH-buffering agents such as weak acids,
• Example I-II the following polymers were used. Each polymer was obtained from National Starch as an aqueous solution of from 30-60% by weight solids level. All percentages for the polymer refer to 100% active polymers.
• Fabric softening compositions were made by adding the deflocculating polymer under sturring, to a preheated (70°C) mixture of the emulsion component and fabric softening material in aqueous dispersion.
• the fabric softening material was Arquad 2HT (a dimethyl ditallow ammonium chloride) ex Atlas.
• the emulsion component was a combination of Sirius M85 a mineral oil ex Dalton & Co., Silkolene 910 ex Dalton & Co., a petroleum jelly and optionally lanolin.
• the following compositions were obtained: In all compositions B, D and F a significant reduction in viscosity was observed when compared to that of the corresponding composition without polymer. In compositions E and F a reduction in viscosity from 0.7 Pas to 0.3 Pas was measured at a shear rate of 21s ⁇ 1.
• Fabric softening compositions were made according to the method of Example I.
• the fabric softening material was either Arquad 2HT as used in Example I or Arquad 2T ex Atlas. In Arquad 2T the tallow is not hardened.
• Fabric softening compositions were made according to the method of Example I excepting that the electrolyte (when present) was added along with the polymer.
• Example IIIB From comparison with Example IIA it can be seen that a reduction in viscosity from 14.7 Pas to 0.6 Pas occurs on addition of the deflocculating polymer. The addition of electrolyte (Example IIIB) then reduces this viscosity further. Continued addition of electrolyte however leads eventually to a viscosity increase.
• a typical formulation for use as a rinse conditioner comprises:
• This composition has a viscosity at 21s ⁇ 1 of 0.44 Pas.
• Fabric softening compositions were made according to the method of Example I.
• the fabric softening material was Rewoquat W75 (a 1-methyl-1 (tallowylamido-) ethyl-2-tallowyl-4,5-dihydroimidazolinium methosulphate).
• Rewoquat W75 a 1-methyl-1 (tallowylamido-) ethyl-2-tallowyl-4,5-dihydroimidazolinium methosulphate.
• compositions C, D, E and F a significant reduction in viscosity was observed when compared to that of the corresponding composition without polymer.
• composition A compared to composition D or composition B compared to compositions C, E or F.
• compositions were made according to the method of Example I.
• compositions B, C and D a significant reduction in viscosity was observed when compared to that of the corresponding composition without polymer (A).
• compositions were made according to the method of Example I.
• compositions B and C a significant reduction in viscosity was observed when compared to that of the corresponding compositions without polymer (A).
• compositions were made according to the method of Example I.
• compositions B, C and D a significant reduction in viscosity was observed when compared to that of the corresponding composition without polymer (A).

Applications Claiming Priority (2)

Publications (4)

Family

ID=10676592

Family Applications (1)

Country Status (11)

Cited By (20)

Families Citing this family (7)

Citations (7)

Family Cites Families (9)

• 1990
  • 1990-05-25 GB GB909011785A patent/GB9011785D0/en active Pending
• 1991
  • 1991-05-21 CA CA002042979A patent/CA2042979C/en not_active Expired - Lifetime
  • 1991-05-21 EP EP91304603A patent/EP0458599B2/de not_active Expired - Lifetime
  • 1991-05-21 ES ES91304603T patent/ES2097793T5/es not_active Expired - Lifetime
  • 1991-05-21 DE DE69124420T patent/DE69124420T3/de not_active Expired - Lifetime
  • 1991-05-22 AU AU77258/91A patent/AU636753B2/en not_active Expired
  • 1991-05-23 MY MYPI91000875A patent/MY107162A/en unknown
  • 1991-05-24 JP JP3149738A patent/JP2818632B2/ja not_active Expired - Fee Related
  • 1991-05-24 BR BR919102126A patent/BR9102126A/pt not_active IP Right Cessation
  • 1991-05-24 ZA ZA913958A patent/ZA913958B/xx unknown
  • 1991-05-25 KR KR1019910008534A patent/KR940010047B1/ko not_active IP Right Cessation

Patent Citations (7)

Also Published As

Similar Documents

Legal Events