WO1998018893A1 - Compositions liquides aqueuses de blanchiment et procede de pretraitement - Google Patents

Compositions liquides aqueuses de blanchiment et procede de pretraitement Download PDF

Info

Publication number
WO1998018893A1
WO1998018893A1 PCT/US1997/020154 US9720154W WO9818893A1 WO 1998018893 A1 WO1998018893 A1 WO 1998018893A1 US 9720154 W US9720154 W US 9720154W WO 9818893 A1 WO9818893 A1 WO 9818893A1
Authority
WO
WIPO (PCT)
Prior art keywords
group
mixtures
alkyl
moiety
caprolactam
Prior art date
Application number
PCT/US1997/020154
Other languages
English (en)
Inventor
Valerio Del Duca
Carlo Ricci
Dennis Gerard O'sullivan
Original Assignee
The Procter & Gamble Company
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 The Procter & Gamble Company filed Critical The Procter & Gamble Company
Priority to SK585-99A priority Critical patent/SK58599A3/sk
Priority to PL97333230A priority patent/PL333230A1/xx
Priority to BR9713493-7A priority patent/BR9713493A/pt
Priority to NZ335441A priority patent/NZ335441A/en
Priority to CA002270717A priority patent/CA2270717A1/fr
Priority to JP52082098A priority patent/JP2001503460A/ja
Priority to AU51686/98A priority patent/AU5168698A/en
Publication of WO1998018893A1 publication Critical patent/WO1998018893A1/fr
Priority to NO992034A priority patent/NO992034L/no

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • 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
    • C11D3/3723—Polyamines or polyalkyleneimines
    • 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
    • C11D1/42—Amino alcohols or amino ethers
    • C11D1/44—Ethers of polyoxyalkylenes with amino alcohols; Condensation products of epoxyalkanes with amines
    • 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
    • C11D3/39—Organic or inorganic per-compounds
    • C11D3/3947—Liquid compositions

Definitions

  • the present invention relates to liquid acidic aqueous bleaching compositions particularly suitable to be used as a pretreater and to a process of pretreating fabrics.
  • liquid aqueous cleaning compositions have been described in the art, that are particularly suitable for pretreating fabrics.
  • the peroxygen bleaches can be prevented from migration onto bleachable stains/soils (such as peat stains) by deposition on the fabric of other active ingredients that may be present in such a liquid peroxygen bleach-containing composition such as clay-soil particulates on the fabric. Thereby, their bleaching performance can be diminished. This results in a lessening of the bleachable/ dingy soil cleaning performance of the peroxygen bleach.
  • bleachable stains/soils such as peat stains
  • suitable ingredients to be used in a liquid aqueous peroxygen bleach- containing composition must be selected such that they are suitable for imparting the desirable stain removal performance to such a composition.
  • the use of such ingredients must not lead to an unacceptable degree of chemical stability.
  • an aqueous composition being formulated in the acidic pH range at a pH below 6, and comprising a peroxygen bleach and a soil suspending agent selected from the group consisting of an ethoxylated cationic diamine, an ethoxylated cationic polyamine, an ethoxylated cationic amine polymer and mixture thereof, as described hereinafter, to pretreat soiled fabrics, while maintaining adequate chemical stability.
  • the soil suspending agents as defined herein, are easily processed in the acidic aqueous compositions according to the present invention comprising a peroxygen bleach with a reduced impact on the chemical stability properties of said compositions.
  • the specific soil suspending agents, as defined herein are fully compatible with peroxygen bleaches in acidic medium.
  • the acidic aqueous compositions of the present invention comprising a peroxygen bleach and a soil suspending agent, as defined herein, deliver improved stain removal performance on various types of stains including greasy stains, enzymatic stains, clay/mud stains, and the like, under laundry pretreatment conditions, as compared to the stain removal performance delivered by the same compositions without said soil suspending agent.
  • the acidic aqueous compositions comprising both the peroxygen bleach and said soil suspending agent, when used to pretreat fabrics, provide improved bleaching efficacy, as compared to the same compositions without said soil suspending agent.
  • An advantage of the present invention is that chemically and physically stable acidic aqueous compositions are provided that are suitable to be used in the most efficient manner by the consumer over prolonged period of time.
  • the acidic aqueous compositions herein may be formulated either as an emulsion or microemulsion, without the need for modifying the rheology of the compositions.
  • said soil suspending agent reduces the viscosity of an acidic aqueous composition herein comprising a peroxygen bleach, whatever the viscosity was before the addition of said soil suspending agent.
  • EP-A-271 312 discloses laundry compositions comprising a peroxyacid bleach and a soil release agent like particular alkyl and hydroxyalkyl ethers of cellulose, polymers comprising ethylene terephthalate and polyethylene oxide terephthalate. No ethoxylated cationic diamines, ethoxylated cationic polyamines, ethoxylated cationic polymers are disclosed.
  • US 4 659 802 discloses detergent compositions comprising ethoxylated cationic diamines, ethoxylated cationic polyamines and/or ethoxylated cationic polymers as a clay soil removal/antiredeposition agent. No peroxygen bleaches are disclosed.
  • the present invention encompasses a liquid aqueous composition suitable for pretreating fabrics, having a ph below 6 and comprising a peroxygen bleach, and a soil suspending agent selected from the group consisting of: 1 ) ethoxylated cationic diamines having the formula:
  • IS H is an N + or N group; each l ⁇ /
  • 2 is an N + or N group, and at least one M ⁇ is an N + group;
  • ethoxylated cationic polymers which comprises a polymer backbone, at least 2M groups and at least one L-X group, wherein M is a cationic group attached to or integral with the backbone; X is a nonionic group selected from the group consisting of H, C-] -C4 alkyl or hydroxyalkyl ester or ether groups, and mixtures thereof; and L is a hydrophilic chain connecting groups M and X or connecting X to the polymer backbone,
  • R is H or C1 -C4 alkyl or hydroxyalkyl
  • R 1 is C2-C12 alkylene, hydroxyalkylene, alkenylene, arylene or alkarylene, or a C2-C3 oxyalkylene moiety having from 2 to about 20 oxyalkylene units provided that no O-N bonds are formed
  • each R 2 is C1 -C4 alkyl or hydroxyalkyl, the moiety -L-X, or two R 2 together form the moiety - (CH2) r -A 2 -(CH2)s-, wherein A 2 is -O- or -CH2-, r is 1 or 2, s is 1 or 2 and r + s is 3 or 4
  • each R ⁇ is C-
  • R 4 is a substituted C3-C12 alkyl, hydroxyalkyl, alkenyl, aryl or alkaryl group having p substitution sites;
  • R ⁇ is C1 -C12 alkenyl, hydroxyalkylene, alkenylene, arylene or alkarylene, or a C2-C3 oxyalkylene moiety having from 2 to about 20 oxyalkylene units provided that no O-O or O-N bonds are formed;
  • X is a nonionic group selected from the group consisting of H, C1 -C4 alkyl or hydroxyalkyl ester or ether groups, and mixtures thereof;
  • L is a hydrophilic chain which contains the polyoxyalkylene moiety -[(R 6 O) (CH2CH2 ⁇ ) 7 ]-; wherein R ⁇ is C3-C4 alkylene or hydroxyalkylene and m and n are numbers such that the moiety -(CH2CH2
  • the present invention also encompasses a process of bleaching a soiled fabric with a liquid acidic aqueous composition as defined herein before, said process comprising the steps of applying said composition in its neat form onto at least a portion of said fabric, before said fabric is washed.
  • the present invention encompasses a liquid acidic aqueous composition suitable for pretreating fabrics, comprising a peroxygen bleach, and a soil suspending agent selected from the group consisting of an ethoxylated cationic diamine, an ethoxylated cationic polyamine, an ethoxylated cationic amine polymer and mixture thereof, as defined hereinbefore.
  • a soil suspending agent in a liquid acidic aqueous composition comprising a peroxygen bleach, provides improved stain removal performance especially under laundry pretreatment conditions, on various stains including greasy stains, enzymatic stains, clay/mud stains as well as improved bleaching performance while maintaining adequate chemical stability.
  • stain removal performance it is meant herein stain removal performance on a variety of stains/soils such as greasy/oily stains, and/or enzymatic stains and/or mud/clay stains (particulate stains).
  • greasy/oily stains it is meant herein any soil and stain of greasy nature that can be found on a fabric like dirty motor oil, mineral oil, make-up, lipstick vegetal oil, spaghetti sauce, mayonnaise and the like.
  • enzymatic stains include grass, chocolate and blood.
  • the peroxygen bleach is surface active, especially on organic material containing surfaces, and will thus migrate to the fabric surface. It will then be capable of removing organic bleachable material from the surface.
  • the soil suspending agent can interact with the negatively charged soils on the fabric surface, thereby neutralising the fabric surface. This will facilitate the migration of the peroxygen bleaches to the fabric surface.
  • the soil suspending agent is capable of removing and suspending soils like greasy soil, particulate soil (mud/clay) and/or enzymatic soil deposited on the fabric surface, thereby facilitating the partition of the peroxygen bleaches into bleachable stains/soils on the fabric.
  • the soil suspending agents herein are fully compatible with peroxygen bleaches.
  • the bleach-compatibility of the soil suspending agents herein can be explained as follows.
  • the quaternization of the nitrogen groups of these molecules is believed to have a dual purpose. It provides a cationic charge on the molecule, improving adsorption onto stains/particles like clay on the fabric surface, and it removes the oxidisable lone pair on the nitrogen groups from attack by bleaching species, thus making the molecule stable in an aqueous peroxygen bleach containing composition.
  • the soil suspending agents herein are fully compatible with acidic medium.
  • the aqueous bleaching compositions of the present invention are chemically stable.
  • chemically stable it is meant herein that said compositions of the present invention comprising a peroxygen bleach do not undergo more than 20% available oxygen loss at 50°C in 2 weeks.
  • the concentration of available oxygen can be measured by chemical titration methods known in the art, such as the iodimetric method, the permanganometric method and the cerimetric method. Said methods and the criteria for the choice of the appropriate method are described for example in "Hydrogen Peroxide", W. C. Schumb, C. N. Satterfield and R. L. Wentworth, Reinhold Publishing Corporation, New York, 1 955 and "Organic Peroxides", Daniel Swern, Editor Wiley Int. Science, 1 970.
  • the stability of said compositions may also be evaluated by a bulging test method.
  • compositions of the present invention are physically stable.
  • physically stable it is meant herein that the compositions of the present invention do not split in two or more phases when exposed in stressed conditions, e.g., at a temperature of 40 °C during 2 weeks.
  • compositions according to the present invention are aqueous, thus they comprise from 50% to 98% by weight of the total composition of water, preferably from 50% to 95% and more preferably from 55% to 90%.
  • compositions according to the present invention comprise a peroxygen bleach or mixtures thereof.
  • the peroxygen bleach to be used herein is any peroxygen bleach, known to those skilled in the art.
  • Such peroxygen bleach includes hydrogen peroxide, or a water-soluble source thereof, or mixtures thereof. Indeed, the presence of the peroxygen bleach contributes to the excellent cleaning and bleaching benefits of the compositions used according to the present invention.
  • a hydrogen peroxide source refers to any compound which produces perhydroxyl ions when said compound is in contact with water.
  • Suitable water-soluble sources of hydrogen peroxide for use herein include percarbonates, persilicate, persulphate such as monopersulfate, perborates, peroxyacids such as diperoxydodecandioic acid (DPDA), magnesium perphtalic acid, perlauric acid, perbenzoic and alkylperbenzoic acids, hydroperoxides, diacyl peroxides and mixtures thereof.
  • Preferred peroxygen bleaches used herein are hydrogen peroxide, hydroperoxide and/or aliphatic diacyl peroxide.
  • Suitable hydroperoxides for use herein are tert-butyl hydroperoxide, cumyl hydroperoxide, 2,4,4-trimethylpentyl-2-hydroperoxide, di-isopropylbenzene- monohydroperoxide, tert-amyl hydroperoxide and 2,5-dimethyl-hexane-2,5- dihydroperoxide.
  • Such hydroperoxides have the advantage to be particularly safe to fabrics and color while delivering excellent bleaching performance.
  • Suitable aliphatic diacyl peroxides for use herein are dilauroyl peroxide, didecanoyl peroxide, dimyristoyl peroxide or mixtures thereof. Such aliphatic diacyl peroxides have the advantage to be particularly safe to fabrics and color while delivering excellent bleaching performance.
  • compositions according to the present invention comprise from 0.01 % to 1 5% by weight of the total composition of such a peroxygen bleach or mixtures thereof, preferably from 0.1 % to 1 2%, more preferably from 0.5% to 10% and most preferably from 2% to 8%.
  • compositions according to the present invention comprise a soil suspending agent selected from the group consisting of ethoxylated cationic diamines, ethoxylated cationic polyamines, ethoxylated cationic amine polymers, as previously defined and mixtures thereof.
  • R ⁇ can be branched (e.g.
  • R ⁇ is preferably C 2 -C6 alkylene for the ethoxylated cationic diamines.
  • Each R 2 is preferably methyl or the moiety -L-X; each R ⁇ is preferably C1 -C4 alkyl or hydroxyalkyl, and most preferably methyl.
  • the positive charge of the N + groups is offset by the appropriate number of counter anions.
  • Suitable counter anions include C1 -, Br-, SO3- 2 , PO4- 2 , M ⁇ OSO3- and the like.
  • Particularly preferred counter anions are C1 - and Br-
  • X can be a nonionic group selected from hydrogen (H), C1-C4 alkyl or hydroxyalkyl ester or ether groups, or mixtures thereof.
  • Preferred esters or ethers are the acetate ester and methyl ether, respectively.
  • the particularly preferred nonionic groups are H and the methyl ether.
  • hydrophilic chain L usually consists entirely of the polyoxyalkylene moiety -[(R 6 O) (CH2CH2-O /7 )-].
  • the moieties -(R 6 O)m- and - (CH2CH20)n- of the polyoxyalkylene moiety can be mixed together or preferably form blocks of -(R ⁇ O) m - and -(CH2CH2 ⁇ ) n - moieties.
  • R*> is preferably C3H6 (propylene);
  • m is preferably from 0 to about 5 and is most preferably 0, i.e. the polyoxyalkylene moiety consists entirely of the moiety - (CH2CH2O) fl -.
  • the moiety -(CH2CH2 ⁇ ) admire- preferably comprises at least about 85% by weight of the polyoxyalkylene moiety and most preferably 100% by weight (m is O).
  • M ⁇ and each M 2 are preferably an N + group for the cationic diamines and polyamines.
  • Preferred ethoxylated cationic diamines have the formula:
  • n is at least about 12 with a typical range of from about 12 to about 42.
  • R4 linear, branched, or cyclic is preferably a substituted C3-C ⁇ alkyl, hydroxyalkyl or aryl group; A ⁇ is preferably
  • H n is preferably at least about 12, with a typical range of from about 12 to about 42; p is preferably from 3 to 6.
  • R 4 is a substituted aryl or alkaryl group, q is preferably 1 and R ⁇ is preferably C2-C3 alkylene.
  • R4 is a substituted alkyl, hydroxyalkyl, or alkenyl group, and when q is 0, R 5 is preferably a C2-C3 oxyalkylene moiety; when q is 1 , R 5 is preferably C2-C3 alkylene.
  • ethoxylated cationic polyamines can be derived from polyamino amides such as: p
  • ethoxylated cationic polyamines can also be derived from polyaminopropyleneoxide derivatives such as:
  • each c is a number from 2 to about 20.
  • the water soluble cationic polymers of the present invention comprises a polymer backbone, at least 2M groups and at least one L-X group, wherein M is a cationic group attached to or integral with the backbone; X is a nonionic group selected from the group consisting of H, C- ⁇ -C4 alkyl or hydroxyalkyl ester or ether groups, and mixtures thereof; and L is a hydrophilic chain connecting groups M and X or connecting X to the polymer backbone.
  • polymer backbone refers to the polymeric moiety to which groups M and L-X are attached or are integral with. Included within this term are oligomer backbones (2 to 4 units), and true polymer backbones (5 or more units).
  • attachment means that the group is pendent from the polymer backbone, examples of such attachment being represented by the following general structures A and B:
  • integral with means that the group forms part of the polymer backbone, examples of which are represented by the following general structures C and D:
  • Any polymer backbone can be used as long as the cationic polymer formed is water-soluble and has soil removal/anti-redeposition properties.
  • Suitable polymer backbones can be derived from the polyurethanes, the polyesters, the polyethers, the polyamides, the polyimides and the like, the polyacrylates, the polyacrylamides, the polyvinylethers, the polyethylenes, the polypropylenes and like polyalkylenes, the polystyrenes and like polyalkarylenes, the polyalkyleneamines, the polyalkylen ⁇ imines, the polyvinylamines, the polyalylamines, the polydiallylamines, the polyvinylpyridines, the polyaminotriazoles, polyvinyl alcohol, the aminopolyureylenes, and mixtures thereof.
  • M can be any compatible cationic group which comprises an N + (quarternary), positively charged center.
  • the quarternary positively charged center can be represented by the following general structures E and F:
  • M groups are those containing a quarternary center represented by general structure E.
  • the cationic group is preferably positioned close to or integral with the polymer backbone.
  • Suitable counter anions include C1 ", Br, SO3 2 “, SO4 2 “, PO4 2” , MeOSO3 “ and the like. Particularly preferred counter anions are C1 " and Br.
  • X can be a nonionic group selected from hydrogen (H), C1 -C4 alkyl or hydroxyalkyl ester or ether groups, and mixtures thereof.
  • the preferred ester or ether groups are the acetate ester and methyl ether, respectively;
  • the particularly preferred nonionic groups are H and the methyl ether.
  • the cationic polymers suitable for use in compositions in accord with the present inventions normally have a ratio of cationic groups M to nonionic groups X of from about 1 :1 to about 1 :2.
  • the ratio of cationic groups M to nonionic groups X can be varied.
  • the ratio of groups M to groups X can usually range from about 2:1 to about 1 :10.
  • the ratio is from about 1 :1 to about 1 :5.
  • the polymers formed from such copolymerization are typically random, i.e. the cationic, nonionic and mixed cationc/nonionic monomers copolymerize in a nonrepeating sequence.
  • the units which contain groups M and groups L-X can comprise 100% of the cationic polymers of the present invention.
  • other units preferably nonionic
  • examples of other units include acrylamides, vinyl ethers and those containing unquaternized tertiary amine groups (M ⁇ ) containing an N centre.
  • M ⁇ unquaternized tertiary amine groups
  • These other units can comprise from 0% to about 90% of the polymer (from about 1 0% to 100% of the polymer being units containing M and L-X groups, including M ⁇ -L-X groups).
  • these other units comprise from 0% to about 50% of the polymer (from about 50% to 100% of the polymer being units containing M and L-X groups).
  • the number of groups M and L-X each usually ranges from about 2 to about 200. Typically the number of groups M and L-X are each from about 3 to about 100. Preferably, the number of groups M and L-X are each from about 3 to about 40.
  • hydrophilic chain L usually consists entirely of the polyoxyalkylene moiety -[(R'O) (CH2CH2O) n ]-.
  • the moieties -(R'0) m - and -(CH2CH2 ⁇ ) /7 - of the polyoxyalkylene moiety can be mixed together, or preferably form blocks of -(R'0) m - and -(CH2CH 2 O) 7 - moieties.
  • R' is preferably C3H6 (propylene);
  • m is preferably from 0 to 5, and most preferably 0; i.e.
  • the polyoxyalkylene moiety consists entirely of the moiety- (CH2CH2 ⁇ ) ⁇ -.
  • the moiety -(CH2CH2 ⁇ ) ⁇ - preferably comprises at least about 85% by weight of the polyoxyalkylene moiety, and most preferably 100% by weight (m is 0).
  • n is usually from 3 to 100.
  • n is from 1 2 to 42.
  • a plurality (2 or more) of moieties -L-X can also be hooked together and attached to group M or to the polymer backbone, examples of which are represented by the following general structures G and H: M
  • Structures such as G and H can be formed, for example, by reacting glycidol with group M or with the polymer backbone, and ethoxylating the subsequently formed hydroxy groups.
  • cationic polymers of the present invention are as follows:
  • Suitable cationic polymers are derived from polyurethanes, polyesters, polyethers, polyamides and the like. These polymers comprise units selected from those having formulas I, II and III:
  • X is 0 or 1 ;
  • R is H or C1-C4 alkyl or hydroxyalkyl;
  • R 1 is C2-C12 alkylene, hydroxyalkylene, alkenylene, cycloalkylene, arylene or alkarylene, or a C2-
  • C3 oxyalkylene moiety having from 2 to abut 20 oxyalkylene units provided that no O-O or O-N bonds are formed with A ⁇ ; when x is 1 , R 2 is -R5- except when A ⁇ is O or is -(OR 8 )y- or -OR 5 - provided that no O-O or N-O bonds are formed with A ⁇ , and R3 is -R5- except when A ⁇ is
  • NCR 5 — NCOR 5 , — CNR 5 , or OCNR 5
  • R 3 is -R 5 -;
  • R 4 is C1 -C4 alkyl or hydroxyalkyl, or the moiety -(R 5 )*- [(C3H6 ⁇ ) (CH2CH2 ⁇ ) ⁇ ]-X;
  • R 5 is C1 -C12 alkylene, hydroxyalkylene, alkenylene, arylene, or alkarylene;
  • each R ⁇ is C1.C4 alkyl or hydroxyalkyl, or the moiety -(CH2), ⁇ -A 2 -(CH2)s-, wherein A 2 is -O- or -CH2-;
  • R 7 is H or R 4 ;
  • R ⁇ is C2-C3 alkylene or hydroxyalkylene;
  • X is H,
  • R ⁇ is C1 -C4 alkyl or hydoxyalkyl; k is 0 or 1 ; m and n are numbers such that the moiety -(CH 2 CH2O) n - comprises at least about 85% by weight of the moiety -[(C3H6O) ;77 (CH2CH2O) 7 ]-; m is from 0 to about 5; n is at least about 3; r is 1 or 2, s is 1 or 2, and r + s is 3 or 4; y is from 2 to about 20; the number of u, v and w are such that there are at least 2 N + centers and at least 2 X groups.
  • a ⁇ is preferably
  • a 2 is preferably -O-; x is preferably 1 ; and R is preferably H.
  • R1 can be linear (e.g. -CH2-CH2-CH2-,
  • R 2 is preferably -OR 5 - or -(OR 8 )y,-;
  • R3 is preferably -R 5 O- or -(OR 8 ) r;
  • R 4 and R 6 are preferably methyl.
  • R 5 can be linear or branched, and is preferably C2-C3 alkylene; R? is preferably H or C1-C3 alkyl; R 8 is preferably ethylene; R ⁇ is preferably methyl; X is preferably H or methyl; k is preferably 0; m is preferably 0, r and s are each preferably 2; y is preferably from 2 to about 12.
  • n is preferably at least about 6 when the number of N + centers and X groups is 2 or 3; n is most preferably at least about 12, with a typical range of about 12 to about 42 for all ranges of u + v + w.
  • u is preferably from about 3 to about 20.
  • v and w are each preferably from about 3 to about 40. 20
  • Suitable cationic polymers are derived from polyacrylates, polyacrylamides, polyvinylethers and the like. These polymers comprise units selected from those having formulas IV, V and VI.
  • a 1 is — O - CN— ,
  • R is H or C1 -C4 alkyl or hydroxyalkyl;
  • R 1 is substituted C2-C12 alkylene, hydroxyalkylene, alkenylene, arylene or alkarylene, or C2-C3 oxyalkylene;
  • each R 2 is C1 -C12 alkylene, hydroxyalkylene, alkenylene, arylene or alkarylene;
  • each R 3 is C1 -C4 alkyl or hydroxyalkyl, the moiety -(R 2 ) r- [(C3HeO) (CH2CH2O) n ]-X, or together form the moiety -(CH2>r A2 - (CH2>s- wherein A 2 is -O- or -CH2-;
  • each R 4 is C1 -C4 alkyl or hydroxyalkyl, or two R 4 together form the moiety -(CH2) A ⁇ -(C H 2)s-;
  • X is H,
  • R 5 is C1 -C4 alkyl or hydroxalkyl; j is 1 or 0; k is 1 or 0; m and n are numbers such that the moiety -(CH2CH2 ⁇ ) /7 - comprises at least about 85% by weight of the moiety - f(C3H6 ⁇ ) (CH2CH2 ⁇ ) /7 ]-; m is from 0 to about 5; n is at least about 3; r is 1 or 2, s is 1 or 2 and r + s is 3 or 4; the number of u, v and w are such that there are at least 2N + centres and at least 2 X groups.
  • a 1 is preferably
  • a 2 is preferably -O-; R is preferably H. R 1 can be linear
  • R1 is preferably substituted C2-C ⁇ alkylene or substituted C2-C3 oxyalkylene, and most preferably
  • Each R 2 is preferably C2-C3 alkylene, each R 3 and R ⁇ are preferably methyl; R 5 is preferably methyl; X is preferably H or methyl; j is preferably 1 ; k is preferably 0; m is preferably 0; r and s are each preferably 2.
  • n, u, v and w can be varied according to the n, u, v and w for the polyurethane and like polymers.
  • Suitable cationic polymers are derived from polyalkyleneamines, polyaikyleneimines and the like. These polymers comprise units selected from those having formulas VII and VIII and IX.
  • R ⁇ is C 2 -Ci 2 alkylene, hydroxyalkylene, alkenylene, cycloalkylene, arylene or alkarylene, or a C2-C3 oxyalkylene moiety having from 2 to about 20 oxyalkylene units provided that no O-N bonds are formed; each R 2 is C1 -C4 alkyl or hydroxyalkyl, or the moiety -(R 3 ,/ r [(C3H6 ⁇ ) (CH 2 CH2 ⁇ - X; R 3 is C1 -C12 alkylene, hydroxyalkylene, alkenylene, arylene or alkarylene; M' is an N + or N centre; X is H,
  • R4 is C1-C4 alkyl or hydroxyalkyl
  • d is 1 when M' is N + and is 0 when M' is N
  • e is 2 when M' is N + and is 1 when M' is N
  • k is 1 or 0
  • m and n are numbers such that the moiety -(CH2CH2O) /7 - comprises at least about 85% by weight of the moiety -[(C3H6 ⁇ ) /77 (CH 2 CH2 ⁇ ) A? ]-
  • m is from 0 to about 5
  • n is at least about 3
  • the number of x, y and z are such that there are at least 2M' groups, at least 2N + centres and at least 2 X groups.
  • R " ! can be varied like R ⁇ of the polyurethene and like polymers; each R 2 is preferably methyl or the moiety -(R 3 ) ⁇ - [(C3H 6 O) r7 (CH2CH 2 O) /7 ]-X; R 3 is preferably C 2 -C 3 alkylene; R 4 is preferably methyl; X is preferably H; k is preferably 0; m is preferably 0.
  • n is preferably at least about 6 when the number of M' and X groups is 2 or 3; n is most preferably at least about 12, with a typical range of from about 1 2 to about 42 for all ranges of x + y + z.
  • x + y + z is from 2 to about 40 and preferably from 2 to about 20.
  • x + y + z can range from 2 to 9 with from 2 to 9 N + centres and from 2 to 1 1 X groups.
  • x + y + z is at least 10, with a preferred range of from 10 to about 42.
  • the M' groups are typically a mixture of from about 50 to 100% N + centres and from 0 to about 50% N centres.
  • Preferred cationic polymers within this class are derived from the C2-C3 polyalkyleneamines (x + y + z is from 2 to 9) and polyaikyleneimines (x + y + z is at least 10, preferably from 10 to about 42).
  • Particularly preferred cationic polyalkyleneamines and polyaikyleneimines are the cationic polyethyleneamines (PEA's) and polyethyleneimines (PEI's). These preferred cationic polymers comprise units having the general formula:
  • R 2 (preferably methyl), M', X, d, x, y, z and n are defined as before; a is 1 or 0.
  • the PEAs used in preparing cationic polymers of the present invention have the following general formula:
  • x •+ y + z is from 2 to 9, and a is 0 or 1 (molecular weight of from about 100 to about 400).
  • a is 0 or 1 (molecular weight of from about 100 to about 400).
  • Each hydrogen atom attached to each nitrogen atom represents an active site for subsequent ethoxylation.
  • x + y + z is from about 3 to about 7 (molecular weight is from about 140 to about 310).
  • These PEA's can be obtained by reactions involving ammonia and ethylene dichloride, followed by fractional distillation. The common PEA's obtained are triethylenetetramine (TETA) and tetraethylenepentamine (TEPA).
  • TETA triethylenetetramine
  • TEPA tetraethylenepentamine
  • the cogenerically derived mixture does not appear to separate by distillation and can include other materials such as cyclic amines and particularly piperazines. There can also be present cyclic amines with side chains in which nitrogen atoms appear. See US Pat. No. 2,792,372 to Dickson, issues May 14, 1957, which describes the preparation of PEAs.
  • the minimum degree of ethoxylation required for preferred soil removal/antiredeposition performance can vary depending upon the number of units in the PEA. Where y + z is 2 or 3, n is preferably at least about 6. Where y + z is from 4 to 9, suitable benefits are achieved when n is at least about 3.
  • n is at least about 12, with a typical range of about 12 to about 42.
  • the PEIs used in preparing the polymers of the present invention have a molecular weight of at least about 440 prior to ethoxylation, which represents at least about 10 units.
  • Preferred PEIs used in preparing these polymers have a molecular weight of from about 600 to about 1800.
  • the polymer backbone of these PEIs can be represented by the general formula:
  • x, y, and z represents a number of sufficient magnitude to yield a polymer having the molecular weights previously specified.
  • linear polymer backbones are possible, branch chains can also occur.
  • the relative proportions of primary, secondary and tertiary amine groups present in the polymer can vary, depending on the manner of preparation. The distribution of amine groups is typically as follows:
  • Each hydrogen atom attached to each nitrogen atom of the PEI represents an active site for subsequent ethoxylation.
  • These PEIs can be prepared, for example, by polymerizing ethyleneimine in the presence of a catalyst such as carbon dioxide, sodium bisulfite, sulfuric acid, hydrogen peroxide, hydrochloric acid, acetic acid, etc.
  • a catalyst such as carbon dioxide, sodium bisulfite, sulfuric acid, hydrogen peroxide, hydrochloric acid, acetic acid, etc.
  • Specific methods for preparing PEIs are disclosed in US Pat. No. 2, 1 82,306 to Ulrich et al., issued Dec. 5, 1 939; US Pat No. 3,033,746 to Mayle et al., issued May 8, 1 962; US Pat. No. 2,208,095 to Esselmann et al., issued July 1 6, 1 940; US Pat. No. 2,806,839 to Crowther, issued Sept. 1 7, 1 957; and US Pat. No. 2,533,69
  • n is at least about 3 for the cationic PEIs.
  • the minimum degree of ethoxylation required for suitable soil removal/anti-redeposition performance can increase as the molecular weight of the PEI increases, especially much beyond about 1800.
  • the degree of ethoxyalation for preferred polymers increases as the molecular weight of the PEI increases.
  • n is preferably at least about 12, with a typical range of from about 1 2 to about 42.
  • n is preferably at least about 24, with a typical range of from about 24 to about 42.
  • Suitable cationic polymers are those derived from the diallylamines. These polymers comprise units selected from those having formulas X and XI:
  • R ⁇ is C1 -C4 alkyl or hydroxyalkyl, or the moiety -(R 2 ) - [(C3H6 ⁇ ) 77 (CH2CH2 ⁇ ) /7 ]-X;
  • R 2 is C ⁇ -Ci 2 alkylene, hydroxyalkylene, alkylene, arylene or alkarylene;
  • each R 3 is C1 -C4 alkyl or hydroxyalkyl, or together form the moiety - ⁇ CH2) A-(CH2)s-, wherein A is -O- or -CH2-;
  • X is H,
  • R 4 is C1-C4 alkyl or hydroxyalkyl; k is 1 or
  • m and n are numbers such that the moiety -(CH2CH2O) /) - comprises at least about 85% by weight of the moiety -l(C3H6 ⁇ ) 77 (CH2CH2 ⁇ ) ⁇ ]-; m is from 0 to about 5; n is at least about 3; r is 1 or 2, s is 1 or 2, and r + s is 3 or 4; x is 1 or 0; y is 1 when x is 0 and 0 when x is 1 ; the number of u and v are such that there are at least 2N + centres and at least 2 X groups.
  • n is preferably at least about 6 when the number of N + centres and X groups are each 2 or 3, n is preferably at least 12, with a typical range of from about 1 2 to about 42 for all range of u + v.
  • v is 0, and u is from 2 to about 40, and preferably from 2 to about 20.
  • compositions according to the present invention comprise from 0.01 % to 10% by weight of the total composition of such a soil suspending agent or mixtures thereof, preferably from 0.05% to 5%, more preferably 0.1 % to 4% and most preferably from 0.2% to 2%.
  • compositions according to the present invention are formulated in the acidic pH range. Indeed acidity herein contributes to the stain removal/bleaching benefit of the compositions of the present invention. Indeed, the compositions herein have a pH below 6, more preferably below 5, even more preferably from 1 to 4.5 and most preferably from 2 to 4.5.
  • compositions according to the present invention may comprise optional ingredients like surfactants, bleach activators, stabilisers, chelating agents, radical scavengers, builders, soil suspenders, dye transfer agents, solvents, brighteners, perfumes, foam suppressors, dyes or mixtures thereof.
  • optional ingredients are further described in more details hereinafter.
  • the laundry pretreatment process in its broadest embodiment, relates to a process of pretreating a fabric with a liquid acidic aqueous composition as described herein before.
  • pretreating a fabric it is to be understood that the liquid aqueous composition herein is applied in its neat form onto at least a portion of a soiled fabric, optionally left to act onto said fabric typically for a period of time of 1 minute to several hours, before said fabric is washed, as described hereinafter, in the process of bleaching fabrics according to the present invention.
  • the present invention encompasses a process of bleaching a fabric with a liquid aqueous composition, as defined herein before, said process comprises the steps of applying said composition in its neat form onto at least a portion of said fabric, optionally allowing said composition to remain in contact with said fabric preferably without leaving said composition to dry onto said fabric, before said fabric is washed.
  • Said composition may remain in contact with said fabric, typically for a period of 1 minute to several hours, preferably 1 minute to 1 hour, more preferably 1 minute to 30 minutes, and most preferably 2 to 10 minutes.
  • said composition may be rubbed and/or brushed more or less intensively, for example, by means of a sponge or a brush or simply by rubbing two pieces of fabric each against the other.
  • washing it is to be understood herein to simply rinse the fabric with water, or the fabric may be washed with a conventional composition comprising at least one surface active agent, this by the means of a washing machine or simply by hand.
  • the liquid aqueous compositions are applied directly onto the fabrics to be pre-treated without undergoing any dilution, e.g., the liquid aqueous compositions according to the present invention are applied as described herein.
  • the liquid aqueous compositions used in said process should preferably not be left to dry onto the fabrics. Indeed, it has been found that water evaporation contributes to increase the concentration of free radicals onto the surface of the fabrics and, consequently, the rate of chain reaction. It is also speculated that an auto-oxidation reaction occurs upon evaporation of water when the liquid compositions are left to dry onto the fabrics.
  • compositions of the present invention may further comprise optional ingredients like surfactants, bleach activators, stabilisers, chelating agents, radical scavengers, builders, soil suspenders, dye transfer agents, solvents, brighteners, perfumes, foam suppressors, or dyes or mixtures thereof.
  • the liquid aqueous compositions of the present invention preferably comprise a surfactant or mixtures thereof.
  • Any surfactant known to those skilled in the art may be suitable herein including nonionic, anionic, cationic, zwitterionic, and/or amphoteric surfactants up to 50% by weight of the total composition. Surfactants allow to further improve the stain removal properties of the compositions according to the present invention.
  • Nonionic surfactants are highly preferred herein for performance reasons.
  • the liquid compositions herein may comprise up to 50% of a nonionic surfactant or mixtures thereof, preferably from 0.3% to 30% and more preferably from 0.4% to 25%.
  • Suitable nonionic surfactants to be used herein are fatty alcohol ethoxylates and/or propoxylates which are commercially available with a variety of fatty alcohol chain lengths and a variety of ethoxylation degrees. Indeed, the HLB values of such alkoxylated nonionic surfactants depend essentially on the chain length of the fatty alcohol, the nature of the alkoxylation and the degree of alkoxylation.
  • surfactant catalogues are available which list a number of surfactants, including nonionics, together with their respective HLB values.
  • Suitable chemical processes for preparing the nonionic surfactants for use herein include condensation of corresponding alcohols with alkylene oxide, in the desired proportions. Such processes are well-known to the man skilled in the art and have been extensively described in the art.
  • alkoxylated alcohols suitable for use herein is commercially available from various suppliers.
  • nonionic surfactants Particularly suitable to be used herein as nonionic surfactants are hydrophobic nonionic surfactants having an HLB (hydrophilic-lipophilic balance) below 1 6, preferably below 1 5, more preferably below 1 2, and most preferably below 10. Those hydrophobic nonionic surfactants have been found to provide good grease cutting properties.
  • HLB hydrophilic-lipophilic balance
  • Preferred hydrophobic nonionic surfactants to be used in the compositions according to the present invention are surfactants having an HLB below 1 6 and being according to the formula RO-(C2H4 ⁇ ) n (C3H6 ⁇ ) m H, wherein R is a C ⁇ to C22 a'kyl chain or a CQ to C28 alkyl benzene chain, and wherein n + m is from 0 to 20 and n is from 0 to 1 5 and m is from 0 to 20, preferably n + m is from 1 to 1 5 and, n and m are from 0.5 to 1 5, more preferably n + m is from 1 to 10 and, n and m are from 0 to 10.
  • the preferred R chains for use herein are the C ⁇ to C22 alkyl chains.
  • Dobanol R 91 -2.5 or Lutensol R T03, or Lutensol R A03, or Tergitol R 25L3, or Dobanol R 23-3, or Dobanol R 23-2, or mixtures thereof.
  • These Dobanol R surfactants are commercially available from SHELL.
  • These Lutensol R surfactants are commercially available from BASF and these Tergitol surfactants are commercially available from UNION CARBIDE.
  • nonionic surfactants for use herein include polyhydroxy fatty acid amide surfactants, or mixtures thereof, according to the formula
  • R 1 is H, or C1 -C4 alkyl, C1 -C4 hydrocarbyl, 2-hydroxy ethyl, 2- hydroxy propyl or a mixture thereof
  • R 2 is C5.C31 hydrocarbyl
  • Z is a polyhydroxyhydrocarbyl having a linear hydrocarbyl chain with at least 3 hydroxyls directly connected to the chain, or an alkoxylated derivative thereof.
  • R ⁇ is C1 -C4 alkyl, more preferably C1 or C2 alkyl and most preferably methyl
  • R 2 is a straight chain Cy.C-i g alkyl or alkenyl, preferably a straight chain Cg.C-j s alkyl or alkenyl, more preferably a straight chain C-
  • Z preferably will be derived from a reducing sugar in a reductive amination reaction; more preferably Z is a glycityl.
  • Suitable reducing sugars include glucose, fructose, maltose, lactose, galactose, mannose and xylose.
  • high dextrose corn syrup, high fructose corn syrup, and high maltose corn syrup can be utilised as well as the individual sugars listed above. These corn syrups may yield a mix of sugar components for Z. It should be understood that it is by no means intended to exclude other suitable raw materials.
  • Z preferably will be selected from the group consisting of -CH2-(CHOH) n - CH 2 OH, -CH(CH 2 OH)-(CHOH) n .-
  • R1 can be, for example, N-methyl, N- ethyl, N-propyl, N-isopropyl, N-butyl, N-2-hydroxy ethyl, or N-2-hydroxy propyl.
  • R 2 - C(O) - N ⁇ can be, for example, cocamide, stearamide, oleamide, lauramide, myristamide, capricamide, palmitamide, tallowamide and the like.
  • Z can be 1 -deoxyglucityl, 2-deoxyfructityl, 1 -deoxymaltityl, 1 - deoxylactityl, 1 -deoxygalactityl, 1 -deoxymannityl, 1 -deoxymaltotriotityl and the like.
  • Suitable polyhydroxy fatty acid amide surfactants to be used herein may be commercially available under the trade name HOE® from Hoechst.
  • polyhydroxy fatty acid amide surfactants are known in the art. In general, they can be made by reacting an alkyl amine with a reducing sugar in a reductive amination reaction to form a corresponding N- alkyl polyhydroxyamine, and then reacting the N-alkyl polyhydroxyamine with a fatty aliphatic ester or triglyceride in a condensation/amidation step to form the N-alkyl, N-polyhydroxy fatty acid amide product.
  • compositions containing polyhydroxy fatty acid amides are disclosed for example in GB patent specification 809,060, published February 1 8, 1 959, by Thomas Hedley & Co., Ltd., US patent 2,965,576, issued December 20, 1 960 to E.R. Wilson, US patent 2,703,798, Anthony M. Schwartz, issued March 8, 1 955, US patent 1 ,985,424, issued December 25, 1 934 to Piggott and WO92/06070, each of which is incorporated herein by reference.
  • the liquid aqueous compositions according to the present invention may further comprise other surfactants like an anionic surfactant, or mixtures thereof on top of nonionic surfactants.
  • Anionic surfactants are preferred herein as optional ingredient as they act as wetting agent, i.e., in a laundry application they wet the stains on the fabrics, especially on hydrophilic fabrics, and thus help the peroxygen bleach perform its bleaching action thereby contributing to improved laundry performance on bleachable stains.
  • anionic surfactants allow to obtain clear compositions even when said compositions comprise hydrophobic ingredients such as hydrophobic surfactants.
  • the compositions herein may comprise from 0.1 % to 20 % by weight of the total composition of said anionic surfactant, or mixtures thereof, preferably from 0.2 % to 1 5 % and more preferably from 0.5 % to 1 3 % .
  • anionic surfactants are well-known in the art and have found wide application in commercial detergents. These anionic surfactants include the C8-C22 alkyl benzene sulfonates (LAS), the C8-C22 alkyl sulfates (AS), unsaturated sulfates such as oleyl sulfate, the C10-C18 alkyl alkoxy sulfates (AES) and the C10-C1 8 alkyl alkoxy carboxylates.
  • LAS C8-C22 alkyl benzene sulfonates
  • AS C8-C22 alkyl sulfates
  • unsaturated sulfates such as oleyl sulfate
  • AES C10-C18 alkyl alkoxy sulfates
  • C10-C1 8 alkyl alkoxy carboxylates are particularly suitable for use herein.
  • the neutralising cation for the anionic synthetic sulfonates and/or sulfates is represented by conventional cations which are widely used in detergent technology such as sodium, potassium or alkanolammonium.
  • Preferred herein are the alkyl sulphate, especially coconut alkyl sulphate having from 6 to 18 carbon atoms in the alkyl chain, preferably from 8 to 1 5, or mixtures thereof.
  • anionic surfactants useful for detersive purposes can also be used herein. These can include salts (including, for example, sodium, potassium, ammonium, and substituted ammonium salts such as mono-, di- and triethanolamine salts) of soap, Cs-C 2 2 primary or secondary alkanesulfonates, C8-C24 olefinsulfonates, sulfonated polycarboxylic acids prepared by sulfonation of the pyrolyzed product of alkaline earth metal citrates, e.g., as described in British patent specification No.
  • alkylpolyglycolethersulfates (containing up to 10 moles of ethylene oxide); alkyl ester sulfonates such as C14.1 6 nnethyl ester sulfonates; acyl glycerol sulfonates, fatty oleyl glycerol sulfates, alkyl phenol ethylene oxide ether sulfates, paraffin sulfonates, alkyl phosphates, isethionates such as the acyl isethionates, N-acyl taurates, alkyl succinamates and sulfosuccinates, monoesters of sulfosuccinate (especially saturated and unsaturated C1 2- 18 monoesters) diesters of sulfosuccinate (especially saturated and unsaturated 6-C14 diesters), sulfates of alkylpolysaccharides such as the sulf
  • Resin acids and hydrogenated resin acids are also suitable, such as rosin, hydrogenated rosin, and resin acids and hydrogenated resin acids present in or derived from tall oil. Further examples are given in "Surface Active Agents and Detergents" (Vol. I and II by Schwartz, Perry and Berch). A variety of such surfactants are also generally disclosed in U.S. Patent 3,929,678, issued December 30, 1 975 to Laughlin, et al. at Column 23, line 58 through Column 29, line 23 (herein incorporated by reference).
  • acyl sarcosinate or mixtures thereof, in its acid and/or salt form preferably long chain acyl sarcosinates having the following formula:
  • M is hydrogen or a cationic moiety and wherein R is an alkyl group of from 1 1 to 1 5 carbon atoms, preferably of from 1 1 to 1 3 carbon atoms.
  • R is an alkyl group of from 1 1 to 1 5 carbon atoms, preferably of from 1 1 to 1 3 carbon atoms.
  • Preferred M are hydrogen and alkali metal salts, especially sodium and
  • Said acyl sarcosinate surfactants are derived from natural fatty acids and the amino-acid sarcosine (N-methyl glycine). They are suitable to be used as aqueous solution of their salt or in their acidic form as powder. Being derivatives of natural fatty acids, said acyl sarcosinates are rapidly and completely biodegradable and have good skin compatibility.
  • particularly preferred long chain acyl sarcosinates to be used herein include C1 2 acyl sarcosinate (i.e. an acyl sarcosinate according to the above formula wherein M is hydrogen and R is an alkyl group of 1 1 carbon atoms) and C14 acyl sarcosinate (i.e. an acyl sarcosinate according to the above formula wherein M is hydrogen and R is an alkyl group of 1 1 carbon atoms) and C14 acyl sarcosinate (i.e. an acyl sarcosinate according
  • C12 acyl sarcosinate is commercially available, for example, as Hamposyl L-30® supplied by Hampshire.
  • C14 acyl sarcosinate is commercially available, for example, as Hamposyl M-30® supplied by Hampshire.
  • the liquid aqueous compositions according to the present invention may further comprise other surfactants known to those skilled in the art like an amine oxide surfactant according to the formula R1 R2R3NO, wherein each of R1 , R2 and R3 is independently a C1 -C30, preferably a C-
  • Amine oxides may be present in amounts up to 10 % by weight of the total composition, more preferably from 1 % to 3%.
  • the compositions of the present invention comprise a bleach activator or mixtures thereof.
  • the compositions herein that further comprise a bleach activator or mixtures thereof deliver more effective bleaching performance, especially at ambient temperature at which the pretreatment operation is performed.
  • bleach activator it is meant herein a compound which reacts with hydrogen peroxide to form a peracid. The peracid thus formed constitutes the activated bleach.
  • Paticularly suitable bleach activators to be used herein are hydrophobic bleach activators, i.e., a bleach activator which is not substantially and stably miscible with water.
  • such hydrophobic bleach activators have a secondary HLB (hydrophilic lipophilic balance) below 1 1 , preferably below 1 0.
  • Suitable bleach activators to be used herein include those belonging to the class of esters, amides, imides, or anhydrides. Examples of suitable compounds of this type are disclosed in British Patent GB 1 586 769 and GB 2 143 231 and a method for their formation into a prilled form is described in European Published Patent Application EP-A-62 523.
  • Suitable examples of such compounds to be used herein are tetracetyl ethylene diamine (TAED), sodium 3,5,5 trimethyl hexanoyloxybenzene sulphonate, diperoxy dodecanoic acid as described for instance in US 4 81 8 425 and nonylamide of peroxyadipic acid as described for instance in US 4 259 201 and n-nonanoyloxybenzenesulphonate (NOBS).
  • TAED tetracetyl ethylene diamine
  • NOBS n-nonanoyloxybenzenesulphonate
  • N-acyl caprolactams selected from the group consisting of substituted or unsubstituted benzoyl caprolactam, octanoyl caprolactam, nonanoyl caprolactam, hexanoyl caprolactam, decanoyl caprolactam, undecenoyl caprolactam, formyl caprolactam, acetyl caprolactam, propanoyl caprolactam, butanoyl caprolactam pentanoyl caprolactam or mixtures thereof.
  • a particular family of bleach activators of interest was disclosed in EP 624 1 54, and particularly preferred in that family is acetyl triethyl citrate (ATC).
  • Acetyl triethyl citrate has the advantage that it is environmental- friendly as it eventually degrades into citric acid and alcohol. Furthermore, acetyl triethyl citrate has a good hydrolytical stability in the product upon storage and it is an efficient bleach activator. Finally, it provides good building capacity to the composition.
  • compositions according to the present invention may comprise from 0.01 % to 20% by weight of the total composition of said bleach activator, or mixtures thereof, preferably from 1 % to 10%, and more preferably from 2% to 7%.
  • compositions herein may be formulated as solutions, emulsions or microemulsions depending on the respective ingredients present and respective levels thereof.
  • compositions according to the present invention that typically comprise a bleach activator, as described hereinbefore are preferably formulated either as aqueous emulsions of said bleach activator in a matrix comprising water, the peroxygen bleach, the soil suspending agent and an emulsifying surfactant system, or as microemulsions of said bleach activator in a matrix comprising water, the peroxygen bleach, the soil suspending agent and a hydrophilic surfactant system.
  • Preferred peroxygen bleach-containing emulsions herein comprise an emulsifying surfactant system of at least two different surfactants.
  • said two different surfactants should have different HLB values (hydrophilic / lipophilic balance) in order to form stable emulsions, and preferably the difference in value of the HLBs of said two surfactants is at least 1 , preferably at least 2. Indeed, by appropriately combining at least two of said surfactants with different HLBs in water, emulsions will be formed which do not substantially separate into distinct layers, upon standing for at least two weeks at 40°C.
  • the emulsions according to the present invention may further comprise other surfactants on top of said emulsifying surfactant system, which should however not significantly alter the weighted average HLB value of the overall emulsion.
  • the emulsifying system meets the equation:
  • HLB (X) refers to the HLB of the ingredient to emulsify, if several ingredients are present to emulsify X refers to all of them (weighted average based on % of each ingredient in the formula)
  • HLB (A) refers to the HLB of the hydrophilic surfactant, or mixtures thereof
  • HLB (B) refers to the HLB of the hydrophobic surfactant, or mixtures thereof.
  • an adequate surfactant system would comprise a hydrophobic nonionic surfactant with for instance an HLB of 6, such as a Dobanol R 23-2 and a hydrophilic nonionic surfactant with for instance an HLB of 1 5, such as a Dobanol R 91 -10.
  • compositions are formulated as emulsions
  • said compositions are opaque.
  • centrifugation examination it was observed that said emulsions herein showed no phase separation after 1 5 minutes at 6000 rpm. Under microscopic examination, said emulsions appeared as a dispersion of droplets in a matrix.
  • said bleaching microemulsions according to the present invention comprise a hydrophilic surfactant system comprising at least two different surfactants like a nonionic surfactant and an anionic surfactant.
  • Suitable hydrophilic surfactants to be used herein are those hydrophilic surfactants mentioned herein.
  • the microemulsions herein comprise a peroxygen bleach and a bleach activator
  • a key factor in order to stably incorporate the bleach activator in said microemulsions is that at least one of said surfactants of the hydrophilic surfactant system must have a different HLB value to that of the bleach activator.
  • At least one of said surfactants has an HLB value which differs by at least 1 .0 HLB unit, preferably 2.0 to that of said bleach activator.
  • compositions are formulated as microemulsions
  • said compositions are macroscopically transparent in the absence of opacifiers and dyes.
  • centrifugation examination it was observed that said microemulsions herein showed no phase separation after 1 5 minutes at 6000 rpm.
  • said microemulsions appeared as a dispersion of droplets in a matrix.
  • the particles had a size which is typically around or below 3 micron diameter.
  • Suitable chelating agents to be used herein include chelating agents selected from the group of phosphonate chelating agents, amino carboxylate chelating agents, polyfunctionally-substituted aromatic chelating agents, and further chelating agents like glycine, salicylic acid, aspartic acid, glutamic acid, malonic acid, or mixtures thereof. Chelating agents when used, are typically present herein in amounts ranging from 0.001 % to 5% by weight of the total composition and preferably from 0.05% to 2% by weight.
  • Suitable phosphonate chelating agents to be used herein may include ethydronic acid as well as amino phosphonate compounds, including amino alkylene poly (alkylene phosphonate), alkali metal ethane 1 -hydroxy diphosphonates, nitrilo trimethylene phosphonates, ethylene diamine tetra methylene phosphonates, and diethylene triamine penta methylene phosphonates.
  • the phosphonate compounds may be present either in their acid form or as salts of different cations on some or all of their acid functionalities.
  • Preferred amino phosphonate chelating agents to be used herein are diethylene triamine penta methylene phosphonate (DTPMP), 1 - hydroxy ethane diphosphonate (HEDP) and amino-tri-(methylene phosphonic acid) (ATMP).
  • DTPMP diethylene triamine penta methylene phosphonate
  • HEDP 1 - hydroxy ethane diphosphonate
  • ATMP amino-tri-(methylene phosphonic acid)
  • Such phosphonate chelating agents are commercially available from Monsanto under the trade name DEQUEST®-
  • Polyfunctionally-substituted aromatic chelating agents may also be useful in the compositions herein. See U.S. patent 3,81 2,044, issued May 21 , 1 974, to Connor et al.
  • Preferred compounds of this type in acid form are dihydroxydisulfobenzenes such as 1 ,2-dihydroxy -3,5-disulfobenzene.
  • a preferred biodegradable chelating agent for use herein is ethylene diamine N,N'- disuccinic acid, or alkali metal, or alkaline earth, ammonium or substitutes ammonium salts thereof or mixtures thereof.
  • Ethylenediamine N,N'- disuccinic acids, especially the (S,S) isomer have been extensively described in US patent 4, 704, 233, November 3, 1 987, to Hartman and Perkins.
  • Ethylenediamine N,N'- disuccinic acids is, for instance, commercially available under the tradename ssEDDS® from Palmer Research Laboratories.
  • Suitable amino carboxylates to be used herein include ethylene diamine tetra acetates, diethylene triamine pentaacetates, diethylene triamine pentaacetate (DTPA),N- hydroxyethylethylenediamine triacetates, nitrilotri- acetates, ethylenediamine tetrapropionates, triethylenetetraaminehexa- acetates, ethanol-diglycines, propylene diamine tetracetic acid (PDTA) and methyl glycine di-acetic acid (MGDA), both in their acid form, or in their alkali metal, ammonium, and substituted ammonium salt forms.
  • PDTA propylene diamine tetracetic acid
  • MGDA methyl glycine di-acetic acid
  • Particularly suitable amino carboxylates to be used herein are diethylene triamine penta acetic acid, propylene diamine tetracetic acid (PDTA) which is, for instance, commercially available from BASF under the trade name Trilon FS® and methyl glycine di-acetic acid (MGDA).
  • PDTA propylene diamine tetracetic acid
  • MGDA methyl glycine di-acetic acid
  • , R 2 , R3, and R4 are independently selected from the group consisting of -H, alkyl, alkoxy, aryl, aryloxy, -Cl, -Br, -NO2, -C(O)R', and - SO 2 R"; wherein R' is selected from the group consisting of -H, -OH, alkyl, alkoxy, aryl, and aryloxy; R" is selected from the group consisting of alkyl, alkoxy, aryl, and aryloxy; and R5, R ⁇ , R7, and Rs are independently selected from the group consisting of -H and alkyl.
  • Particularly preferred chelating agents to be used herein are 1 -hydroxy ethane diphosphonate (HEDP) and amino-tri-(methylene phosphonic acid) (ATMP), diethylene triamine methylene phosphonate (DTPMP), ethylene N,N'-disuccinic acid, diethylene triamine pantaacetate, glycine, salicylic acid, aspartic acid, glutamic acid, malonic acid or mixtures thereof.
  • HEDP 1 -hydroxy ethane diphosphonate
  • ATMP amino-tri-(methylene phosphonic acid)
  • DTPMP diethylene triamine methylene phosphonate
  • ethylene N,N'-disuccinic acid diethylene triamine pantaacetate
  • glycine salicylic acid
  • aspartic acid glutamic acid
  • malonic acid or mixtures thereof.
  • Suitable radical scavengers for use herein include the well-known substituted mono and dihydroxy benzenes and their analogs, alkyl and aryl carboxylates and mixtures thereof.
  • Preferred such radical scavengers for use herein include di-tert-butyl hydroxy toluene (BHT), hydroquinone, di-tert- butyl hydroquinone, mono-tert-butyl hydroquinone, tert-butyl-hydroxy anysole, benzoic acid, toluic acid, catechol, t-butyl catechol, benzylamine, 1 , 1 ,3-tris(2-methyl-4-hydroxy-5-t-butylphenyl) butane, n-propyl-gallate or mixtures thereof and highly preferred is di-tert-butyl hydroxy toluene.
  • Radical scavengers when used, are typically present herein in amounts ranging from 0.001 % to 2% by weight
  • compositions according to the present invention may also comprises a soil suspending polyamine polymer or mixtures thereof. Any soil suspending polyamine polymer known to those skilled in the art may also be used herein. Particularly suitable polyamine polymers for use herein are polyalkoxylated polyamines. Such materials can conveniently be represented as molecules of the empirical structures with repeating units :
  • R is a hydrocarbyl group, usually of 2-6 carbon atoms;
  • R1 may be a C-
  • the alkoxy groups are ethoxy, propoxy, and the like, and y is 2-30, most preferably from 10-20;
  • n is an integer of at least 2, preferably from 2-20, most preferably 3-5;
  • X " is an anion such as halide or methylsulfate, resulting from the quaternization reaction.
  • polyethylene amines i.e., the polymerized reaction product of ethylene oxide with ethyleneimine, having the general formula :
  • compositions of the present invention comprise from 0.01 % to 1 5% by weight of the total composition of such a soil suspending polyamine polymer or mixtures thereof preferably from 0.1 % to 5% and more preferably from 0.2% to 3% .
  • compositions of the present invention may further comprise a solvent or mixtures thereof. More particularly, it has been found that the addition of a solvent system comprising at least one hydrophobic solvent and at least one hydrophilic solvent, in a liquid composition according to the present invention, further contributes to the benefits of said composition, i.e., further improves the overall stain removal performance on various type of stains including greasy stains, enzymatic stains as well as bleachable stains.
  • the liquid aqueous compositions herein may comprise up to 10% from by weight of the total composition of a hydrophobic solvent or mixtures thereof, preferably from 0.1 % to 5% and more preferably from 0.2% to 2%, and up to 20% by weight of the total composition of a hydrophilic solvent or mixtures thereof, preferably from 0.5% to 1 5% and more preferably from 1 % to 1 0%.
  • Suitable hydrophobic solvents to be used herein include terpenes like mono- and bicyclic monoterpenes, especially those of the hydrocarbon class, which include the terpinenes, terpinolenes, limonenes and pinenes and mixtures thereof. Highly preferred materials of this type are d-limonene, dipentene, alpha-pinene and/or beta-pinene.
  • Other hydrophobic solvents include all type of paraffins, both linear and not, containing from 2 to 20 carbons, preferably from 4 to 10, more preferably from 6 to 8. Preferred herein is octane.
  • Another hydrophobic solvent suitable to be used herein is benzyl alcohol. Particularly preferred hydrophobic solvents to be used herein include d-limonene, dipentene, alpha-pinene, beta-pinene, octane, benzyl alcohol, or mixtures thereof.
  • Suitable hydrophilic solvents to be used herein include alkoxylated aliphatic alcohols like methoxy propanol, ethoxy propanol, propoxy propanol, buthoxy propanol as well as alkoxylated glycols like ethoxy-ethoxy-ethanol, aliphatic alcohols like ethanol, propanol, as well as glycols like propanediol or mixtures thereof. Any polymeric soil release agent known to those skilled in the art can optionally be employed in the compositions and processes of this invention.
  • Polymeric soil release agents are characterized by having both hydrophilic segments, to hydrophilize the surface of hydrophobic fibres, such as polyester and nylon, and hydrophobic segments, to deposit upon hydrophobic fibres and remain adhered thereto through completion of washing and rinsing cycles and, thus, serve as an anchor for the hydrophilic segments. This can enable stains occurring subsequent to treatment with the soil release agent to be more easily cleaned in later washing procedures.
  • the polymeric soil release agents useful herein especially include those soil release agents having: (a) one or more nonionic hydrophile components consisting essentially of (i) polyoxyethylene segments with a degree of polymerization of at least 2, or (ii) oxypropylene or polyoxypropylene segments with a degree of polymerization of from 2 to 10, wherein said hydrophile segment does not encompass any oxypropylene unit unless it is bonded to adjacent moieties at each end by ether linkages, or (iii) a mixture of oxyalkylene units comprising oxyethylene and from 1 to about 30 oxypropylene units wherein said mixture contains a sufficient amount of oxyethylene units such that the hydrophile component has hydrophilicity great enough to increase the hydrophilicity of conventional polyester synthetic fiber surfaces upon deposit of the soil release agent on such surface, said hydrophile segments preferably comprising at least about 25% oxyethylene units and more preferably, especially for such components having about 20 to 30 oxypropylene units, at least about 50% oxyethylene units; or
  • the polyoxyethylene segments of (a)(i) will have a degree of polymerization of from about 1 to about 200, although higher levels can be used, preferably from 3 to about 1 50, more preferably from 6 to about 100.
  • Suitable oxy C4-C5 alkylene hydrophobe segments include, but are not limited to, end-caps of polymeric soil release agents such as MO3S(CH2)nOCH2CH2O-, where M is sodium and n is an integer from 4-6, as disclosed in U.S. Patent 4,721 ,580, issued January 26, 1 988 to Gosselink.
  • Polymeric soil release agents useful in the present invention also include cellulosic derivatives such as hydroxyether cellulosic polymers, copolymeric blocks of ethylene terephthalate or propylene terephthalate with polyethylene oxide or polypropylene oxide terephthalate, and the like. Such agents are commercially available and include hydroxyethers of cellulose such as METHOCEL (Dow). Cellulosic soil release agents for use herein also include those selected from the group consisting of C1 -C4 alkyl and C4 hydroxyalkyl cellulose; see U.S. Patent 4,000,093, issued December 28, 1 976 to Nicol, et al.
  • Soil release agents characterized by poly(vinyl ester) hydrophobe segments include graft copolymers of poly(vinyl ester), e.g., C * ⁇ -CQ vinyl esters, preferably poly(vinyl acetate) grafted onto polyalkylene oxide backbones, such as polyethylene oxide backbones.
  • poly(vinyl ester) e.g., C * ⁇ -CQ vinyl esters
  • poly(vinyl acetate) grafted onto polyalkylene oxide backbones such as polyethylene oxide backbones.
  • Commercially available soil release agents of this kind include the SOKALAN type of material, e.g., SOKALAN HP-22, available from BASF (West Germany).
  • One type of preferred soil release agent is a copolymer having random blocks of ethylene terephthalate and polyethylene oxide (PEO) terephthalate.
  • the molecular weight of this polymeric soil release agent is in the range of from about 25,000 to about 55,000. See U.S. Patent 3,959,230 to Hays, issued May 25, 1 976 and U.S. Patent 3,893,929 to Basadur issued July 8, 1 975.
  • Another preferred polymeric soil release agent is a polyester with repeat units of ethylene terephthalate units which contains 10-1 5% by weight of ethylene terephthalate units together with 90-80% by weight of polyoxyethylene terephthalate units, derived from a polyoxyethylene glycol of average molecular weight 300-5,000. Examples of this polymer include the commercially available material ZELCON 51 26 (from Dupont) and MILEASE T (from ICI). See also U.S. Patent 4,702,857, issued October 27, 1 987 to Gosselink.
  • Another preferred polymeric soil release agent is a sulfonated product of a substantially linear ester oligomer comprised of an oligomeric ester backbone of terephthaloyl and oxyalkyleneoxy repeat units and terminal moieties covalently attached to the backbone.
  • These soil release agents are described fully in U.S. Patent 4,968,451 , issued November 6, 1 990 to J.J. Scheibel and E.P. Gosselink.
  • Other suitable polymeric soil release agents include the terephthalate polyesters of U.S. Patent 4,71 1 ,730, issued December 8, 1987 to Gosselink et al, the anionic end-capped oligomeric esters of U.S. Patent 4,721 ,580, issued January 26, 1 988 to Gosselink, and the block polyester oligomeric compounds of U.S. Patent 4,702,857, issued October 27, 1 987 to Gosselink.
  • Preferred polymeric soil release agents also include the soil release agents of U.S. Patent 4,877,896, issued October 31 , 1 989 to Maldonado et al, which discloses anionic, especially sulfoaroyl, end-capped terephthalate esters.
  • Still another preferred soil release agent is an oligomer with repeat units of terephthaloyl units, sulfoisoterephthaloyl units, oxyethyleneoxy and oxy- 1 ,2-propylene units.
  • the repeat units form the backbone of the oligomer and are preferably terminated with modified isethionate end-caps.
  • a particularly preferred soil release agent of this type comprises about one sulfoisophthaloyl unit, 5 terephthaloyl units, oxyethyleneoxy and oxy-1 ,2- propyleneoxy units in a ratio of from about 1 .7 to about 1 .8, and two end- cap units of sodium 2-(2-hydroxyethoxy)-ethanesulfonate.
  • Said soil release agent also comprises from about 0.5% to about 20%, by weight of the oligomer, of a crystalline-reducing stabilizer, preferably selected from the group consisting of xylene sulfonate, cumene sulfonate, toluene sulfonate, and mixtures thereof.
  • a crystalline-reducing stabilizer preferably selected from the group consisting of xylene sulfonate, cumene sulfonate, toluene sulfonate, and mixtures thereof. See U.S. Pat. No. 5,41 5,807, issued May 1 6, 1 995, to Gosselink et al.
  • soil release agents will generally comprise from about 0.01 % to about 10.0%, by weight, of the detergent compositions herein, typically from about 0.1 % to about 5%, preferably from about 0.2% to about 3.0%.
  • compositions of the present invention may also include one or more materials effective for inhibiting the transfer of dyes from one dyed surface to another during the cleaning process.
  • dye transfer inhibiting agents include polyvinyl pyrrolidone polymers, polyamine N-oxide polymers, copolymers of N-vinylpyrrolidone and N-vinylimidazole, manganese phthalocyanine, peroxidases, and mixtures thereof. If used, these agents typically comprise from about 0.01 % to about 10% by weight of the composition, preferably from about 0.01 % to about 5%, and more preferably from about 0.05% to about 2%.
  • Preferred polyamine N-oxides are those wherein R is a heterocyclic group such as pyridine, pyrrole, imidazole, pyrrolidine, piperidine and derivatives thereof.
  • the N-O group can be represented by the following general structures:
  • , R 2 , R3 are aliphatic, aromatic, heterocyclic or alicyclic groups or combinations thereof; x, y and z are 0 or 1 ; and the nitrogen of the N-0 group can be attached or form part of any of the aforementioned groups.
  • the amine oxide unit of the polyamine N-oxides has a pKa ⁇ 10, preferably pKa ⁇ 7, more preferred pKa ⁇ 6.
  • Any polymer backbone can be used as long as the amine oxide polymer formed is water-soluble and has dye transfer inhibiting properties.
  • suitable polymeric backbones are polyvinyls, polyalkylenes, polyesters, polyethers, polyamide, polyimides, polyacrylates and mixtures thereof. These polymers include random or block copolymers where one monomer type is an amine N-oxide and the other monomer type is an N-oxide.
  • the amine N-oxide polymers typically have a ratio of amine to the amine N-oxide of 10: 1 to 1 : 1 ,000,000. However, the number of amine oxide groups present in the polyamine oxide polymer can be varied by appropriate copolymerization or by an appropriate degree of N-oxidation.
  • the polyamine oxides can be obtained in almost any degree of polymerization. Typically, the average molecular weight is within the range of 500 to 1 ,000,000; more preferred 1 ,000 to 500,000; most preferred 5,000 to 100,000. This preferred class of materials can be referred to as "PVNO".
  • the most preferred polyamine N-oxide useful in the detergent compositions herein is poly(4-vinylpyridine-N-oxide) which as an average molecular weight of about 50,000 and an amine to amine N-oxide ratio of about 1 :4.
  • Copolymers of N-vinylpyrrolidone and N-vinylimidazole polymers are also preferred for use herein.
  • the PVPVI has an average molecular weight range from 5,000 to 1 ,000,000, more preferably from 5,000 to 200,000, and most preferably from 10,000 to 20,000. (The average molecular weight range is determined by light scattering as described in Barth, et al., Chemical Analysis, Vol 1 1 3.
  • the PVPVI copolymers typically have a molar ratio of N-vinylimidazole to N-vinylpyrrolidone from 1 : 1 to 0.2:1 , more preferably from 0.8: 1 to 0.3: 1 , most preferably from 0.6: 1 to 0.4: 1 . These copolymers can be either linear or branched.
  • the present invention compositions may also employ a polyvinylpyrrolidone (“PVP") having an average molecular weight of from about 5,000 to about 400,000, preferably from about 5,000 to about 200,000, and more preferably from about 5,000 to about 50,000.
  • PVP polyvinylpyrrolidone
  • compositions containing PVP can also contain polyethylene glycol ("PEG") having an average molecular weight from about 500 to about 100,000, preferably from about 1 ,000 to about 10,000.
  • PEG polyethylene glycol
  • the ratio of PEG to PVP on a ppm basis delivered in wash solutions is from about 2: 1 to about 50:1 , and more preferably from about 3: 1 to about 10: 1 .
  • suds boosters such as C ⁇ Q-C I Q alkanolamides can be incorporated into the compositions, typically at 1 %-10% levels.
  • the Ci O"Ci 4 monoethanol and diethanol amides illustrate a typical class of such suds boosters.
  • Use of such suds boosters with high sudsing adjunct surfactants such as the amine oxides, betaines and sultaines noted above is also advantageous.
  • soluble magnesium salts such as MgCI 2 , MgSO4, and the like, can be added at levels of, for example, 0.1 %-2%, to provide additional suds and to enhance grease removal performance.
  • optical brighteners fluorescent whitening agents or other brightening or whitening agents known in the art can be incorporated in the instant compositions when they are designed for fabric treatment or laundering, at levels typically from about 0.05% to about 1 .2%, by weight, of the detergent compositions herein.
  • Commercial optical brighteners which may be useful in the present invention can be classified into subgroups, which include, but are not necessarily limited to, derivatives of stilbene, pyrazoline, coumarin, carboxylic acids, methinecyanines, dibenzothiophene-5,5-dioxide, azoles, 5- and 6-membered-ring heterocyclic brighteners, this list being illustrative and non-limiting. Examples of such brighteners are disclosed in "The Production and Application of Fluorescent Brightening Agents", M. Zahradnik, Published by John Wiley & Sons, New York (1 982).
  • optical brighteners which are useful in the present compositions are those identified in U.S. Patent 4,790,856, issued to Wixon on December 13, 1 988. These brighteners include the PHORWHITE series of brighteners from Verona. Other brighteners disclosed in this reference include: Tinopal UNPA, Tinopal CBS and Tinopal 5BM; available from Ciba-Geigy; Artie White CC and Artie White CWD, available from Hilton-Davis, located in Italy; the 2-(4-styryl-phenyl)-2H-naphthol[ 1 ,2- djtriazoles; 4,4'-bis- ( 1 ,2,3-triazol-2-yl)-stil- benes; 4,4'- bis(styryl)bisphenyls; and the aminocoumarins.
  • these brighteners include 4-methyl-7-diethyl- amino coumarin; 1 ,2-bis(- benzimidazol-2-yl)ethylene; 2,5-bis(benzoxazol-2-yl)thiophene; 2-styryl- napth-[1 ,2-d]oxazole; and 2-(stilbene-4-yl)-2H-naphtho- [1 ,2-d]triazole. See also U.S. Patent 3,646,01 5, issued February 29, 1 972 to Hamilton. Anionic brighteners are typically preferred herein.
  • compositions of the present invention suitable for pretreating fabrics can be packaged in a variety of containers including conventional bottles, bottles equipped with roll-on, sponge, brusher or sprayers. Also as the aqueous compositions herein are chemically stable, they may be packaged in a given deformable container/bottle without compromising the stability of said container/bottle comprising it upon standing, for long periods of time.
  • the stain removal and/or bleaching performance of a given composition on a soiled fabric under pretreatment conditions may be evaluated by the following test method.
  • An aqueous composition according to the present invention is first applied to the stained portion of said fabric, left to act from about 1 to about 10 minutes, typically 5 minutes, and said pretreated fabric is then washed according to common washing conditions with a conventional detergent composition, at a temperature of from 30°C to 70°C for a period of time sufficient to bleach said fabric.
  • typical soiled fabrics to be used in this test method may be commercially available from EMC (Empirical Manufacturing Company) Cincinnati, Ohio, USA such as clay, chocolate, spaghetti sauce, dirty motor oil, make-up, tea, coffee, blood on two different substrate/fabric, e.g., cotton (CW1 20) and polycotton (PCW28).
  • EMC Electronic Manufacturing Company
  • the stain removal/bleaching performance may then be evaluated by comparing side by side the soiled fabric pretreated with the composition according to the present invention with those pretreated with the reference, e.g., the same composition without such a soil suspending agent according to the present invention.
  • a visual grading scale may be used to assign differences in panel score units (psu), in a range from 0 to 4.
  • compositions were made by mixing the listed ingredients in the listed proportions (weight % unless otherwise specified).
  • ATC* is acetyl triethyl citrate.
  • Dobanol ® 23-3 is a C12-C13 nonionic ethoxylated surfactant with HLB of
  • Dobanol ® 23-6.5 is a C12-C13 nonionic ethoxylated surfactant with HLB of 11.9.
  • Dobanol ® 45-7 is a C14-C15 nonionic ethoxylated surfactant with HLB of 11.6.
  • Dobanol ® 91-10 is a C9-C11 nonionic ethoxylated surfactant with HLB of 14.7.
  • ATMP*** is aminotri(methylene phosphonic acid).
  • DTPMP***** is diethylene triamine penta methylene phosphonate.
  • HEDP**** is 1 -Hydroxy Ethane Diphosponate.
  • EHDQ* * * is 24-Ethoxylated Hexamethylene Diamine Quaternized methyl chloride
  • Excellept stain removal performance is obtained on a variety of stains including greasy/oily stains like clay, dirty motor oil, make-up, lipstick, carotenoid-type stains like spaghetti sauce, bleachable stains like tea and enzymatic stains like grass, blood, when pretreating soiled fabrics with any of the compositions I to VIII, as described above, e.g., when leaving such a composition to act onto the fabrics for a contact period of about 5 minutes, before rinsing said fabrics with water or washing according to standard US or European washing conditions.

Abstract

L'invention concerne une composition aqueuse acide pouvant s'utiliser pour des étoffes salies prétraitées, contenant un agent de blanchiment peroxygéné et un agent de suspension des impuretés sélectionné dans le groupe comprenant une diamine cationique éthoxylée, une polyamine cationique éthoxylée, un polymère d'amine cationique éthoxylée et leurs mélanges. L'invention concerne également un procédé pour prétraiter des étoffes salies, au moyen de ladite composition.
PCT/US1997/020154 1996-10-31 1997-10-30 Compositions liquides aqueuses de blanchiment et procede de pretraitement WO1998018893A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
SK585-99A SK58599A3 (en) 1996-10-31 1997-10-30 Liquid aqueous bleaching compositions and pretreatment process
PL97333230A PL333230A1 (en) 1996-10-31 1997-10-30 Aqueous liquid bleaching preparations and a method of preliminary processing
BR9713493-7A BR9713493A (pt) 1996-10-31 1997-10-30 Composições alvejantes aquosas lìquidas e processo de pré-tratamento
NZ335441A NZ335441A (en) 1996-10-31 1997-10-30 Liquid aqueous bleaching compositions and pretreatment process
CA002270717A CA2270717A1 (fr) 1996-10-31 1997-10-30 Compositions liquides aqueuses de blanchiment et procede de pretraitement
JP52082098A JP2001503460A (ja) 1996-10-31 1997-10-30 液状水性漂白組成物および前処理法
AU51686/98A AU5168698A (en) 1996-10-31 1997-10-30 Liquid aqueous bleaching compositions and pretreatment process
NO992034A NO992034L (no) 1996-10-31 1999-04-28 Flytende vandige blekesammensetninger og forhÕndbehandlings fremgangsmÕte

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP96870137A EP0839903B1 (fr) 1996-10-31 1996-10-31 Compositions de blanchiment liquide aqueuses et méthode de prétraitement
EP96870137.5 1996-10-31

Publications (1)

Publication Number Publication Date
WO1998018893A1 true WO1998018893A1 (fr) 1998-05-07

Family

ID=8226174

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/020154 WO1998018893A1 (fr) 1996-10-31 1997-10-30 Compositions liquides aqueuses de blanchiment et procede de pretraitement

Country Status (17)

Country Link
EP (1) EP0839903B1 (fr)
JP (1) JP2001503460A (fr)
KR (1) KR20000052942A (fr)
AT (1) ATE229565T1 (fr)
AU (1) AU5168698A (fr)
BR (1) BR9713493A (fr)
CA (1) CA2270717A1 (fr)
DE (1) DE69625362T2 (fr)
ES (1) ES2183929T3 (fr)
HU (1) HUP0202668A2 (fr)
IL (1) IL129643A0 (fr)
NO (1) NO992034L (fr)
NZ (1) NZ335441A (fr)
PL (1) PL333230A1 (fr)
SK (1) SK58599A3 (fr)
TR (1) TR199901616T2 (fr)
WO (1) WO1998018893A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8729296B2 (en) 2010-12-29 2014-05-20 Ecolab Usa Inc. Generation of peroxycarboxylic acids at alkaline pH, and their use as textile bleaching and antimicrobial agents
US8822719B1 (en) 2013-03-05 2014-09-02 Ecolab Usa Inc. Peroxycarboxylic acid compositions suitable for inline optical or conductivity monitoring
US9242879B2 (en) 2012-03-30 2016-01-26 Ecolab Usa Inc. Use of peracetic acid/hydrogen peroxide and peroxide-reducing agents for treatment of drilling fluids, frac fluids, flowback water and disposal water
US9253978B2 (en) 2008-03-28 2016-02-09 Ecolab USA, Inc. Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents
US9288992B2 (en) 2013-03-05 2016-03-22 Ecolab USA, Inc. Efficient stabilizer in controlling self accelerated decomposition temperature of peroxycarboxylic acid compositions with mineral acids
US9290448B2 (en) 2008-03-28 2016-03-22 Ecolab USA, Inc. Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents
US9321664B2 (en) 2011-12-20 2016-04-26 Ecolab Usa Inc. Stable percarboxylic acid compositions and uses thereof
US9540598B2 (en) 2008-03-28 2017-01-10 Ecolab Usa Inc. Detergents capable of cleaning, bleaching, sanitizing and/or disinfecting textiles including sulfoperoxycarboxylic acids
US9763442B2 (en) 2010-12-29 2017-09-19 Ecolab Usa Inc. In situ generation of peroxycarboxylic acids at alkaline pH, and methods of use thereof
US10165774B2 (en) 2013-03-05 2019-01-01 Ecolab Usa Inc. Defoamer useful in a peracid composition with anionic surfactants

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR9908117A (pt) * 1998-02-20 2000-10-24 Procter & Gamble Composições detergentes alvejantes contendo polìmeros de poliamina modificada
EP0995792A1 (fr) * 1998-10-19 2000-04-26 The Procter & Gamble Company Procédé de blanchiment des tissus
US6586382B1 (en) 1998-10-19 2003-07-01 The Procter & Gamble Company Process of bleaching fabrics
ES2265010T3 (es) * 2001-09-07 2007-02-01 THE PROCTER & GAMBLE COMPANY Composicion blanqueadora que comprende un agente de mantenimiento del tinte.
EP1865050B1 (fr) 2006-06-08 2017-03-08 The Procter & Gamble Company Compositions de blanchiment
JP5580027B2 (ja) * 2009-12-11 2014-08-27 花王株式会社 液体漂白剤組成物
US10060073B2 (en) 2013-05-23 2018-08-28 Washing Systems, Llc Method of laundering industrial garments
BR112015028853A2 (pt) 2013-05-24 2017-08-29 Procter & Gamble Composição detergente com ph baixo
WO2014190133A1 (fr) 2013-05-24 2014-11-27 The Procter & Gamble Company Composition détergente à ph faible comprenant des tensioactifs non ioniques
BR112015028824A2 (pt) 2013-05-24 2017-07-25 Procter & Gamble composição de tensoativo concentrada
US10093884B2 (en) 2016-10-14 2018-10-09 The Clorox Company Peroxide-free polymer and surfactant liquid laundry additive compositions

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0111965A2 (fr) * 1982-12-23 1984-06-27 THE PROCTER & GAMBLE COMPANY Compositions détergentes contenant de composés cationiques ayant des propriétés pour enlever des taches et la contre-redéposition
EP0111984A2 (fr) * 1982-12-23 1984-06-27 THE PROCTER & GAMBLE COMPANY Polymères d'amines éthoxylées ayant des propriétés pour enlever des taches et la contre-redéposition utilisables dans des compositions détergentes
US4659802A (en) * 1982-12-23 1987-04-21 The Procter & Gamble Company Cationic compounds having clay soil removal/anti-redeposition properties useful in detergent compositions
US4664848A (en) * 1982-12-23 1987-05-12 The Procter & Gamble Company Detergent compositions containing cationic compounds having clay soil removal/anti-redeposition properties
US5512699A (en) * 1994-01-25 1996-04-30 The Procter & Gamble Company Poly polyhydroxy fatty acid amides

Family Cites Families (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1985424A (en) 1933-03-23 1934-12-25 Ici Ltd Alkylene-oxide derivatives of polyhydroxyalkyl-alkylamides
US2182306A (en) 1935-05-10 1939-12-05 Ig Farbenindustrie Ag Polymerization of ethylene imines
US2208095A (en) 1937-01-05 1940-07-16 Ig Farbenindustrie Ag Process of producing insoluble condensation products containing sulphur and nitrogen
US2533696A (en) 1949-09-09 1950-12-12 George W Schaeffer Diborane purification process
US2703798A (en) 1950-05-25 1955-03-08 Commercial Solvents Corp Detergents from nu-monoalkyl-glucamines
US2806839A (en) 1953-02-24 1957-09-17 Arnold Hoffman & Co Inc Preparation of polyimines from 2-oxazolidone
US2792372A (en) 1954-09-15 1957-05-14 Petrolite Corp Process for breaking petroleum emulsions employing certain oxyalkylated higher polyethylene amines
DE1072347B (fr) 1956-05-14
BE615597A (fr) 1958-06-19
GB1082179A (en) 1965-07-19 1967-09-06 Citrique Belge Nv Unsaturated carboxylic salt materials and derivatives thereof
US3812044A (en) 1970-12-28 1974-05-21 Procter & Gamble Detergent composition containing a polyfunctionally-substituted aromatic acid sequestering agent
CA989557A (en) 1971-10-28 1976-05-25 The Procter And Gamble Company Compositions and process for imparting renewable soil release finish to polyester-containing fabrics
US3959230A (en) 1974-06-25 1976-05-25 The Procter & Gamble Company Polyethylene oxide terephthalate polymers
DE2437090A1 (de) 1974-08-01 1976-02-19 Hoechst Ag Reinigungsmittel
US4000093A (en) 1975-04-02 1976-12-28 The Procter & Gamble Company Alkyl sulfate detergent compositions
GB1586769A (en) 1976-10-06 1981-03-25 Procter & Gamble Ltd Laundry additive product
US4259201A (en) 1979-11-09 1981-03-31 The Procter & Gamble Company Detergent composition containing organic peracids buffered for optimum performance
US4399049A (en) 1981-04-08 1983-08-16 The Procter & Gamble Company Detergent additive compositions
GB8304990D0 (en) 1983-02-23 1983-03-30 Procter & Gamble Detergent ingredients
US4561991A (en) * 1984-08-06 1985-12-31 The Procter & Gamble Company Fabric cleaning compositions for clay-based stains
US4790856A (en) 1984-10-17 1988-12-13 Colgate-Palmolive Company Softening and anti-static nonionic detergent composition with sulfosuccinamate detergent
US4702857A (en) 1984-12-21 1987-10-27 The Procter & Gamble Company Block polyesters and like compounds useful as soil release agents in detergent compositions
DE3536530A1 (de) 1985-10-12 1987-04-23 Basf Ag Verwendung von pfropfcopolymerisaten aus polyalkylenoxiden und vinylacetat als vergrauungsinhibitoren beim waschen und nachbehandeln von synthesefasern enthaltendem textilgut
US4711730A (en) 1986-04-15 1987-12-08 The Procter & Gamble Company Capped 1,2-propylene terephthalate-polyoxyethylene terephthalate polyesters useful as soil release agents
DE3762630D1 (de) 1986-05-28 1990-06-13 Akzo Nv Verfahren zur herstellung von diperoxidodecandionsaeure enthaltenden agglomeraten und die verwendung derselben in bleichmitteln.
GB8618635D0 (en) 1986-07-30 1986-09-10 Unilever Plc Detergent composition
US4954292A (en) 1986-10-01 1990-09-04 Lever Brothers Co. Detergent composition containing PVP and process of using same
US4704233A (en) 1986-11-10 1987-11-03 The Procter & Gamble Company Detergent compositions containing ethylenediamine-N,N'-disuccinic acid
US4770666A (en) 1986-12-12 1988-09-13 The Procter & Gamble Company Laundry composition containing peroxyacid bleach and soil release agent
US4721580A (en) 1987-01-07 1988-01-26 The Procter & Gamble Company Anionic end-capped oligomeric esters as soil release agents in detergent compositions
US4877896A (en) 1987-10-05 1989-10-31 The Procter & Gamble Company Sulfoaroyl end-capped ester of oligomers suitable as soil-release agents in detergent compositions and fabric-conditioner articles
US4968451A (en) 1988-08-26 1990-11-06 The Procter & Gamble Company Soil release agents having allyl-derived sulfonated end caps
EP0550603B1 (fr) 1990-09-28 1994-11-30 The Procter & Gamble Company Procede a forte concentration de catalyseurs utilise pour des detergents a base de glucamide
WO1993012067A1 (fr) 1991-12-13 1993-06-24 The Procter & Gamble Company Esters de citrate acyle utilises comme precurseurs de peracide
US5415807A (en) 1993-07-08 1995-05-16 The Procter & Gamble Company Sulfonated poly-ethoxy/propoxy end-capped ester oligomers suitable as soil release agents in detergent compositions
JP3330226B2 (ja) * 1994-06-10 2002-09-30 花王株式会社 液体漂白剤組成物
SK115597A3 (en) * 1995-02-28 1998-06-03 Procter & Gamble Laundry pretreatment with peroxide bleaches containing chelators for iron, copper or manganese for reduced fabric damage

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0111965A2 (fr) * 1982-12-23 1984-06-27 THE PROCTER & GAMBLE COMPANY Compositions détergentes contenant de composés cationiques ayant des propriétés pour enlever des taches et la contre-redéposition
EP0111984A2 (fr) * 1982-12-23 1984-06-27 THE PROCTER & GAMBLE COMPANY Polymères d'amines éthoxylées ayant des propriétés pour enlever des taches et la contre-redéposition utilisables dans des compositions détergentes
US4659802A (en) * 1982-12-23 1987-04-21 The Procter & Gamble Company Cationic compounds having clay soil removal/anti-redeposition properties useful in detergent compositions
US4664848A (en) * 1982-12-23 1987-05-12 The Procter & Gamble Company Detergent compositions containing cationic compounds having clay soil removal/anti-redeposition properties
US5512699A (en) * 1994-01-25 1996-04-30 The Procter & Gamble Company Poly polyhydroxy fatty acid amides

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10323218B2 (en) 2008-03-28 2019-06-18 Ecolab Usa Inc. Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents
US9676711B2 (en) 2008-03-28 2017-06-13 Ecolab Usa Inc. Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents
US11827867B2 (en) 2008-03-28 2023-11-28 Ecolab Usa Inc. Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents
US9253978B2 (en) 2008-03-28 2016-02-09 Ecolab USA, Inc. Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents
US11015151B2 (en) 2008-03-28 2021-05-25 Ecolab Usa Inc. Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents
US9290448B2 (en) 2008-03-28 2016-03-22 Ecolab USA, Inc. Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents
US10669512B2 (en) 2008-03-28 2020-06-02 Ecolab Usa Inc. Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents
US9359295B2 (en) 2008-03-28 2016-06-07 Ecolab USA, Inc. Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents
US9540598B2 (en) 2008-03-28 2017-01-10 Ecolab Usa Inc. Detergents capable of cleaning, bleaching, sanitizing and/or disinfecting textiles including sulfoperoxycarboxylic acids
US10017720B2 (en) 2008-03-28 2018-07-10 Ecolab Usa Inc. Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents
US10077415B2 (en) 2008-03-28 2018-09-18 Ecolab Usa Inc. Detergents capable of cleaning, bleaching, sanitizing and/or disinfecting textiles including sulfoperoxycarboxylic acids
US10477862B2 (en) 2010-12-29 2019-11-19 Ecolab Usa Inc. In situ generation of peroxycarboxylic acids at alkaline pH, and methods of use thereof
US9763442B2 (en) 2010-12-29 2017-09-19 Ecolab Usa Inc. In situ generation of peroxycarboxylic acids at alkaline pH, and methods of use thereof
US8729296B2 (en) 2010-12-29 2014-05-20 Ecolab Usa Inc. Generation of peroxycarboxylic acids at alkaline pH, and their use as textile bleaching and antimicrobial agents
US9321664B2 (en) 2011-12-20 2016-04-26 Ecolab Usa Inc. Stable percarboxylic acid compositions and uses thereof
US9902627B2 (en) 2011-12-20 2018-02-27 Ecolab Usa Inc. Stable percarboxylic acid compositions and uses thereof
US9242879B2 (en) 2012-03-30 2016-01-26 Ecolab Usa Inc. Use of peracetic acid/hydrogen peroxide and peroxide-reducing agents for treatment of drilling fluids, frac fluids, flowback water and disposal water
US10017403B2 (en) 2012-03-30 2018-07-10 Ecolab Usa Inc. Use of peracetic acid/hydrogen peroxide and peroxide-reducing enzymes for treatment of drilling fluids, frac fluids, flowback water and disposal water
US10023484B2 (en) 2012-03-30 2018-07-17 Ecolab Usa Inc. Use of peracetic acid/hydrogen peroxide and peroxide-reducing agents for treatment of drilling fluids, frac fluids, flowback water and disposal water
US9926214B2 (en) 2012-03-30 2018-03-27 Ecolab Usa Inc. Use of peracetic acid/hydrogen peroxide and peroxide-reducing agents for treatment of drilling fluids, frac fluids, flowback water and disposal water
US11939241B2 (en) 2012-10-05 2024-03-26 Ecolab Usa Inc. Stable percarboxylic acid compositions and uses thereof
US11180385B2 (en) 2012-10-05 2021-11-23 Ecolab USA, Inc. Stable percarboxylic acid compositions and uses thereof
US10165774B2 (en) 2013-03-05 2019-01-01 Ecolab Usa Inc. Defoamer useful in a peracid composition with anionic surfactants
US9585397B2 (en) 2013-03-05 2017-03-07 Ecolab Usa Inc. Peroxycarboxylic acid compositions suitable for inline optical or conductivity monitoring
US10893674B2 (en) 2013-03-05 2021-01-19 Ecolab Usa Inc. Efficient stabilizer in controlling self accelerated decomposition temperature of peroxycarboxylic acid compositions with mineral acids
US9288992B2 (en) 2013-03-05 2016-03-22 Ecolab USA, Inc. Efficient stabilizer in controlling self accelerated decomposition temperature of peroxycarboxylic acid compositions with mineral acids
US11026421B2 (en) 2013-03-05 2021-06-08 Ecolab Usa Inc. Efficient stabilizer in controlling self accelerated decomposition temperature of peroxycarboxylic acid compositions with mineral acids
US9675076B2 (en) 2013-03-05 2017-06-13 Ecolab Usa Inc. Peroxycarboxylic acid compositions suitable for inline optical or conductivity monitoring
US11206826B2 (en) 2013-03-05 2021-12-28 Ecolab Usa Inc. Defoamer useful in a peracid composition with anionic surfactants
US10031081B2 (en) 2013-03-05 2018-07-24 Ecolab Usa Inc. Peroxycarboxylic acid compositions suitable for inline optical or conductivity monitoring
US8822719B1 (en) 2013-03-05 2014-09-02 Ecolab Usa Inc. Peroxycarboxylic acid compositions suitable for inline optical or conductivity monitoring

Also Published As

Publication number Publication date
PL333230A1 (en) 1999-11-22
EP0839903A1 (fr) 1998-05-06
SK58599A3 (en) 2000-03-13
HUP0202668A2 (hu) 2002-11-28
KR20000052942A (ko) 2000-08-25
ATE229565T1 (de) 2002-12-15
TR199901616T2 (xx) 1999-09-21
IL129643A0 (en) 2000-02-29
BR9713493A (pt) 2000-02-29
AU5168698A (en) 1998-05-22
NO992034L (no) 1999-06-30
NO992034D0 (no) 1999-04-28
ES2183929T3 (es) 2003-04-01
DE69625362T2 (de) 2003-10-30
CA2270717A1 (fr) 1998-05-07
DE69625362D1 (de) 2003-01-23
NZ335441A (en) 2001-02-23
EP0839903B1 (fr) 2002-12-11
JP2001503460A (ja) 2001-03-13

Similar Documents

Publication Publication Date Title
EP0794245B1 (fr) Procédé de prétraitement pour le lavage du ligne et compositions de blanchiment
US6310025B1 (en) Laundry pretreatment process and bleaching compositions
EP0839903B1 (fr) Compositions de blanchiment liquide aqueuses et méthode de prétraitement
US6087312A (en) Laundry bleaching processes and compositions
US20030154556A1 (en) Bleaching composition comprising a dye maintenance agent
WO1998011189A1 (fr) Procede de pretraitement du linge a blanchir et compositions de blanchiment
US6613726B1 (en) Bleaching compositions
EP0829532B1 (fr) Procédés et compositions pour le blanchiment de linge
EP1001014B1 (fr) Compositions de blanchiment
EP0834550A1 (fr) Compositions détergentes pour le linge
MXPA99004126A (en) Liquid aqueous bleaching compositions and pretreatment process
EP1291410A1 (fr) Composition de blanchiment comprenant un agent de maintien de colorant
CA2340399A1 (fr) Utilisation de peroxyde de diacyle aromatique-aliphatique dans une composition de blanchiment
KR19990087531A (ko) 세탁 전처리 방법 및 표백 조성물
CZ156399A3 (cs) Tekutý vodný prostředek, vhodný pro předpírání tkanin a způsob bělení znečištěných tkanin
KR20000036091A (ko) 세탁 전처리 방법 및 표백 조성물
MXPA01002200A (en) The use of an aliphatic-aromatic diacyl peroxide in a bleaching composition
CZ114399A3 (cs) Prací detergentní prostředky obsahující hydrofobní rozpouštědlo a hydrofilní rozpouštědlo

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 97181136.9

Country of ref document: CN

AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE GH HU ID IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW AM AZ BY KG KZ MD RU TJ TM

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH KE LS MW SD SZ UG ZW BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 1199900323

Country of ref document: VN

ENP Entry into the national phase

Ref document number: 1998 520820

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 335441

Country of ref document: NZ

ENP Entry into the national phase

Ref document number: 2270717

Country of ref document: CA

Ref document number: 2270717

Country of ref document: CA

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 51686/98

Country of ref document: AU

Ref document number: 1019997003815

Country of ref document: KR

WWE Wipo information: entry into national phase

Ref document number: 09297431

Country of ref document: US

Ref document number: 58599

Country of ref document: SK

Ref document number: PA/a/1999/004126

Country of ref document: MX

Ref document number: PV1999-1563

Country of ref document: CZ

WWE Wipo information: entry into national phase

Ref document number: 1999/01616

Country of ref document: TR

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWP Wipo information: published in national office

Ref document number: PV1999-1563

Country of ref document: CZ

WWP Wipo information: published in national office

Ref document number: 1019997003815

Country of ref document: KR

WWR Wipo information: refused in national office

Ref document number: 1019997003815

Country of ref document: KR

WWR Wipo information: refused in national office

Ref document number: PV1999-1563

Country of ref document: CZ