US3640874A - Bleaching and detergent compositions - Google Patents

Bleaching and detergent compositions Download PDF

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US3640874A
US3640874A US828782A US3640874DA US3640874A US 3640874 A US3640874 A US 3640874A US 828782 A US828782 A US 828782A US 3640874D A US3640874D A US 3640874DA US 3640874 A US3640874 A US 3640874A
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bleaching
activator
sodium
peroxide
compounds
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Frederick William Gray
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Colgate Palmolive Co
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Colgate Palmolive Co
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
    • D06L4/12—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen combined with specific additives
    • 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
    • C11D3/3902—Organic or inorganic per-compounds combined with specific additives
    • C11D3/3905—Bleach activators or bleach catalysts
    • C11D3/3907—Organic compounds
    • C11D3/3917—Nitrogen-containing compounds
    • C11D3/392—Heterocyclic compounds, e.g. cyclic imides or lactames

Definitions

  • the present invention relates in general to compositions advantageously adapted for use in connection with fabric washing and bleaching operations and the like and in particular, to the provision of specific compounds and compositions for such purposes.
  • bleaching agents in conjunction with fabriewashing operations is of course well-established practice if not a recognized necessity.
  • many of the commercially available detergent formulations have incorporate d therein pre-determined quantities of bleaching agent as an essential ingredient; compounds provided for s uchfpu'rposes are well-known in the art being extensively described in the published literature both patent and otherwisei'As specific examples of, bleaching agents found to be particularly" suitable in practice there may be mentioned the chlorine bleaches e.g., the alkali metal hypochlorites; active oxygen releasing compounds e.g., inorganic persalts such as perborates, percarbonates, perphosphates, persilicates, persulfates, hydrogen peroxide, sodium peroxide and the like.
  • bleaching agents of the peroxide type are found to be particularly beneficial as regards capability of providing a fabric, having a softer hand, improved absorbency, permanency of whiteness and the like.
  • other types of bleaching materials currently enjoying relatively widespread commercial exploitation display a pronounced tendency to yield a fabric possessed of sub optimum. resistance to discolorations upon aging i .e., manifest a fyellowiugf tendency.
  • activator compounds of this type function Although the precise mechanism by which activator compounds of this type function is not self-evident, it has nevertheless been postulated by way of general hypothesis that acti'vator-peroxide interaction leads to the formation of intermediate species which in themselves comprise effective bleaching means. Viewed in this aspect, it will be apparent that the activator peroxide components provide in effect a precursor system by Which the in situ generation of species capable of providing effective bleaching action is made possible.
  • many of the activator compounds heretofore described in the art comprise acylated molecules of various types which, again, according to theoretical exposition purportedly form peracid species as a result of interaction with the peroxide bleaching agent.
  • a primary object of the present invention resides in the provision of activator compounds specifically and advantageously adapted for conjoint use with peroxide bleaching agents in bleaching and washing compositions wherein the foregoing disadvantages are eliminated or at least mitigated to a substantial extent.
  • Another object of the present invention resides in the provision of activator compounds substantially devoid of any tendency to deleteriously affect or otherwise impair the color quality, properties etc. of dyed goods.
  • Yet another object of the present invention resides in the provision of activator compounds capable of augmenting the bleaching capacity of peroxide compounds to the extent of permitting the efficacious use of such peroxides at relatively moderate temperatures.
  • a further object of the present invention resides in the provision of activator compounds capable of syngeristically enhancing the bleaching activity of peroxide compounds despite the employment of such activator compound in minor concentrations.
  • a still further object of the present invention resides in the provision of activator compounds capable of yielding fabric materials subsequent to washing and bleaching having satisfactory absorbency, softness of hand, etc. and possessed of superior resistance to discoloration during Wash cycle and upon aging.
  • activator compounds capable of yielding fabric materials subsequent to washing and bleaching having satisfactory absorbency, softness of hand, etc. and possessed of superior resistance to discoloration during Wash cycle and upon aging.
  • the attainment of the foregoing and related objects is made possible in accordance with the present invention which in its broader aspects includes the provision of bleaching compositions containing as essential ingredients (a) a water-soluble stable, peroxide bleaching agent and (b) an N-benzoylimidazole the mole ratio of (a) to (b) being at least 1:5.1.
  • the imidazole compound may, for convenience, be represented according to the following structural formula:
  • N-benzoylimidazole molecule may further contain one or more substituent groups the salient requirement being that any such group be devoid of any tendency to deleteriously affect or otherwise impair, for example, the activator capabilities of such compounds.
  • substituent groups such as typied by alkyl, halo, loweralkoxy, amino e.g., monoand di-loweralkylamino such as dimethylamino, diethylamino etc., nitro and the like may be present as substituents upon either of the benzoyl or imidazole moieties.
  • specific examples of N-benzoylimidazole compounds falling within the foregoing formula definition and found to provide pronounced advantage in the relationships contemplated by the subject invention include, without necessary limitation:
  • N-benzoylimidazole is to be accorded a meaning and significance in the context of the present invention consistent with the foregoing definition.
  • the benzoylimidazole compounds contemplated for use herein may be readily and conveniently prepared according to etc.
  • the benzoylimidazole compound be employed in such quantities as to yield a peroxide-imidazole mol ratio of at least 1.5 :1.
  • experimental evidence indicates that even slight departures from the aforestipulated values i.e., less than the prescribed minimum substantially vitiates any possibility of obtaining a bleaching composition adapted for use in connection with the treatment of dyed goods absent any substantial risk of injury to the latter.
  • the utilization of equimolar concentrations of peroxide and activator under normal conditions of use leads to severe and intolerable injury to dyed fabrics.
  • peroxide-imidazole The upper limiting value of peroxide-imidazole is not particularly critical being a function primarily of economic considerations. In any event, it is found that the broad spectrum of bleaching and/or washing problems likely to be encountered in practice can be effectively negotiated by the use of peroxide-imidazole mole ratios within the range of 1.5 to 15 with a range of 1.5 to 10 being particularly preferred.
  • compositions contemplated by the present invention may comprise simply a mixture of the aforedescribed benzoylimidazole activator compound and peroxide bleaching agent.
  • peroxide compounds conventionally employed in the art as bleaching agents are suitable for use herein with typical examples including, without necessary limitation, inorganic persalts such as typified by perborates, percarbonates, perphosphates, persilicates, persulfates, hydrogen peroxide, sodium peroxide and the like.
  • specific circumstances may well serve to dictate the use of a specific type of peroxide compound, e.g., considerations associated with compatibility, bleaching activity active oxygen content etc.
  • particularly beneficial results are obtained with the use of the alkali metal perborates such as sodium perborate, compounds of this type having been found to permit the attainment of optimum performance as regards bleaching capacity, concentration efficiency and the like.
  • the present invention contemplates the employment of either or both of the imidazole and peroxide compounds in admixture comprising two or more the advisability of so proceeding depending primarily upon the requirements of the processor.
  • this particular expedient affords to the formulator effective means whereby to capitalize on the beneficial propertles characterizing each of a plurality of imidazole and/ or peroxide compounds.
  • the involved ingredients may comprise simply a mixture of the peroxide and imidazole compound within the relative molar quantities stated.
  • ingredients may be included in minor amounts i.e., from 0 to 5% and preferably from 0.1% to 3% by weight of composition such ingredients including without necessary limitation, phosphates to control pH, olfactory agents, optical brighteners and dyes etc.
  • materials such as typified by corn starch may be added to expedite breakup of the tablet.
  • Optional ingredients of the foregoing type will be discussed hereinafter in greater detail.
  • compositions of the present inventlon may be provided in the form of a built detergent composition.
  • Any of the organic detergent materials promulgated in the art for use in relationships of the type described may be employed in the compositions described herein; accordingly, the detergent component may be of the anionic, non-ionic, cationic or amphoteric types.
  • Suitable anionic surface active agents include those detergent compounds which contain an organic hydrophobic group as well as an anionic solubilizing group.
  • anionic solubilizing groups include sulfonate, sulfate, carboxylate, phosphonate, and phosphate.
  • Suitable anionic detergents falling within the scope of the invention include the soaps e.g., the water-soluble salts of higher fatty acids or resin acids the latter being derived from, for example, fats, oils and waxes of animal, vegetable or marine origin e.g., the sodium soaps of tallow, grease, coconut oil, tall oil, as well as mixtures comprising two or more of the foregoing; the sulfated and sulfonated synthetic detergents, particularly those having from 8 to 26 carbon atoms and preferably from 12 to 22 carbon atoms per molecule.
  • the soaps e.g., the water-soluble salts of higher fatty acids or resin acids the latter being derived from, for example, fats, oils and waxes of animal, vegetable or marine origin e.g., the sodium soaps of tallow, grease, coconut oil, tall oil, as well as mixtures comprising two or more of the foregoing
  • the sulfated and sulfonated synthetic detergents particularly those having from
  • the higher alkyl mononuclear aromatic sulfonates such as the higher alkyl benzene sulfonates containing from 10 to 16 carbon atoms in the alkyl group, the latter being either straight or branch chain e.g., the sodium salts of decyl, undecyl, dodecyl (lauryl) tridecyl, tetradecyl, pentadecyl, hexadecyl, benzene sulfonate as well as the higher alkyl toluene, xylene, and phenol sulfonates; aromatic tallow (ethenoxy) ether sulfonates, alkyl naphthalene sulfonate, ammonium diamyl naphthalene sulfonate, and sodium dinonyl naphthalene sulfonate.
  • the higher alkyl mononuclear aromatic sulfonates such
  • anionic detergents include the olefin sulfonates, including long-chain alkene sulfonates, long-chain hydroxyalkane sulfonates or mixtures of alkene sulfonates and hydroxyalkane sulfonates.
  • the olefin sulfonate detergents may be prepared in known manner as by the reaction of S With long-chain olefins the latter having from 8 to 25 and preferably 12 to 21 carbon atoms such olefins corresponding to the following formula RCHCHR wherein R is alkyl and R is alkyl or hydrogen, to produce a mixture of sultones and alkanesulfonic acids.
  • sulfate or sulfonate detergents include paraflin sulfonates e.g., the reaction products of alpha olefins and bisulfites, e.g., sodium bisulfite, such as primary paraffin sulfonates of about 10 to 20 and preferably to carbon atoms; sulfates of higher alcohols; salts of alpha-sulfofatty esters e.g., of about 10 to 20 carbon atoms such as methyl, alpha-sulfomyristate or alpha-sulfotallowate.
  • paraflin sulfonates e.g., the reaction products of alpha olefins and bisulfites, e.g., sodium bisulfite, such as primary paraffin sulfonates of about 10 to 20 and preferably to carbon atoms; sulfates of higher alcohols; salts of alpha-sulfofatty esters e.g., of about
  • sulfates of higher alcohols include without necessary limitation sodium lauryl sulfate, sodium tallow alcohol sulfate etc. Turkey Red Oil or other sulfated oils or sulfates of monoor diglycerides of fatty acids e.g., stearic monoglyceride monosulfate, allyl poly (ethenoxy) ether sulfates such as the sulfates of the condensation products of ethylene oxide and lauryl alcohol (usually having from one to 5 ethenoxy groups per molecule); lauryl or other higher alkyl glyceryl ether sulfonates of the condensation products of ethylene oxide and nonyl phenol (usually containing from 1 to 20 oxy ethylene groups per molecule and preferably from 2 to 12).
  • Suitable anionic detergents additionally include the acyl sarcosinates (e.g., sodium lauroylsarcosinate) the acyl esters (e.g., oleic acid esters) of isothionates and the acyl N-methyl taurides (e.g., potassium N-methyl lauryl or oleyl tauride).
  • acyl sarcosinates e.g., sodium lauroylsarcosinate
  • the acyl esters e.g., oleic acid esters
  • the acyl N-methyl taurides e.g., potassium N-methyl lauryl or oleyl tauride
  • the most highly preferred water soluble anionic detergent compounds comprise the ammonium and substituted ammonium (e.g., the monodiand triethanol amine), a1- kali metal (such as sodium and potassium) and alkaline earth metal (such as calcium and magnesium), salts of the higher alkyl benzene sulfonates, olefin sulfonates, the higher alkyl sulfates and the higher fatty acid monoglyceride sulfates.
  • the deter-gent salt compound selected in a particular instance will depend, inter alia upon the nature of the formulation being prepared as well as the relative proportions of ingredients.
  • Non-anionic surface-active agents suitable for use herein include those compounds containing both an organic hydrophobic moiety and a hydrophilic group which is a reaction product of a solubilizing group such as carboxylate, hydroxyl, amido or amino with ethylene oxide or with the polyhydration product thereof, polyethylene glycol etc.
  • non-anionic detergent compounds suitable for use include the condensation products of alkyl phenol with ethylene oxide e.g., the reaction product of isooctyl phenol with about 6 to 30 ethylene oxide units; condensation rpoducts of alkyl thiophenols with 10 to 15 ethylene oxide units; condensation products of higher fatty alcohols such as tridecyl alcohol with ethylene oxide; ethylene oxide addenda of mono-esters of hexahydric alcohols and inner ethers thereof such as sorbitan monolaurate sorbitol mono-oleate mannitan monopalmitate and the condensation products of polypropylene glycol with ethylene oxide.
  • Cationic surface active agents may also be employed; these compounds characteristically comprise surface active detergent compounds which contain an organic hydrophobic group and a cationic solubilizing group.
  • Typical cationic solubilizing group include amine and quaternary groups.
  • diamines such as those corresponding to the following structural formula:
  • R represents an alkyl group of about 12 to 22 carbon atoms e.g., N-2-aminoethyl stearyl amine N-2-aminoethylmyristyl amine; amido-linked amines such as those corresponding to the following structural formula:
  • R represents alkyl of about 9-20 carbon atoms e.g., N-Z-aminoethyl-stearyl amide and N-aminoethylmyristyl amide; quaternary ammonium compounds wherein typically one of the groups bonded to the nitrogen atoms is an alkyl group of about 12 to 18 carbon atoms and the other alkyl substituents contain from 1 to 3 carbon atoms which may contain further substituent group of an inert nature such as phenyl and there is present an anion such as halogen, acetate, methosulfate etc.
  • Specific representives of the aforedescribed class of compound include without necessary limitation ethyl-dimethyl-stearyl ammonium chloride, tetradecyl ammonium chloride trimethyl-stearyl-ammonium chloride, trimethyl-cetyl ammonium bromide, dimethyl-ethyl dilauryl ammonium chloride, dimethyl-propyl-myristyl ammonium chloride, benzyl-dimethyl-stearyl ammonium chloride as well as the corresponding methosulfates and acetates.
  • Amphoteric detergents may likewise be employed to advantage in the composition described herein i.e., detergent materials containing both an anionic and a cationic group as well as a hydrophobic organic group which is advantageously a higher aliphatic radical e.g., containing from 10 to 20 carbon atoms.
  • Specific representatives include the N-long-chain alkyl aminocarboxylic acids which, for convenience, may be represented according to the following structural formula:
  • R represents a long-chain alkyl group of about 10 to 20 carbon atoms
  • R represents a divalent radical joining the amino and carboxyl portions of an amino acid e.g., an alkylene radical of 1 to 4 carbon atoms
  • M represents hydrogen or a salt-forming metal
  • R represents hydrogen or another monovalent substituent, e.g., methyl or other lower alkyl containing from 1 to 4 caI- bon atoms and R and R represent monovalent substituents joined to the nitrogen by carbon-to-nitrogen bonds e.g., methyl or other lower alkyl substituent.
  • amphoteric detergents include the N- alkyl-beta-amino propionic acid, N-alkyl-beta imino dipropionic acid and N-alkyl N,N-dimethyl glycine; the alkyl group may be for example that derived from coco fatty alcohol, lauryl alcohol; myristyl alcohol or alternatively a lauryl-myristyl mixture, hydrogenated tallow alcohol, cetyl, stearyl, or blends of such alcohols.
  • the substituted aminopropionic and iminodipropionic acids are often provided in the form of the sodium or other salt forms which may likewise be employed in the practice of the present invention.
  • amphoteric detergents examples include the fatty imidazolines such as those prepared by reacting a long-chain fatty acid containing from about to carbon atoms with diethylene triamine and mono-halo-carboxylic acid having 2 to 6 carbon atoms e.g., 1 coco-S-hydroxyethyl-5-carboxymethylimidazoline, betaines containing a sulfonic group instead of the carboxylic group; betaines in which the long-chain substitutent is joined to the carboxyl group without an intervening nitrogen atom, e.g., inner salts of 2-trimethylamino fatty acids such as 2-trimethylaminolauric acid as well as compounds of the aforementioned type in which the nitrogen atom is replaced by phosphorous.
  • fatty imidazolines such as those prepared by reacting a long-chain fatty acid containing from about to carbon atoms with diethylene triamine and mono-halo-carboxylic acid having 2 to 6 carbon atoms e.g.
  • Detergents of the type enumerated hereinbefore may be employed in the compositions described herein in amounts varying over a relatively wide range; in any event, the particular quantity selected is not especially critical depending primarily upon the requirements of the formulator i.e., the nature of the detergent problem likely to be encountered in practice having reference to the use contemplated. Thus, where low-foaming characteristics are desired, the non-ionics prove particularly effective; alternatively, the cationics prove beneficial in applications requiring effective germ-killing capabilities since detergents of this type, in many instances, possess a high order of bacteriostatic activity.
  • the detergent compositions may in addition to the detergent component, contain one or more watersoluble builder salts; included in this group are the inorganic and organic; basic and neutral water soluble salts.
  • the builder salt is employed in amounts ranging up to about 95% i.e., 095% by weight with a range of from about 3 to about 70% by Weight of the composition being preferred.
  • Suitable builders include without necessary limitation,
  • Trisodium phosphate Tetrasodium pyrophosphate Sodium acid pyrophosphate Sodium tripolyphosphate Sodium monobasic phosphate Sodium dibasic phosphate Sodium hexameta phosphate Sodiub silicates, SiO' /Na O of l/l to 3.2/1 Sodium carbonate Sodium sulfate- Borax etc.
  • organic builders include salts of organic acids and, in particular, the water soluble salts of aminopolycarboxylic acids.
  • the alkali metal salts such as sodium, potassium and lithium; ammonium and substituted ammonium salts such as methylarnmonium, diethanolammonium and triethanolammonium and amine salts such as mono-,diand triethanolamine methylamine, octylamine diethylenetriamine, triethylenetetramine and ethylenediamine are efficacious.
  • the acid portion of the salt can be derived from acids such as nit'rilodiacetic; N-(2-hydroxyethyl) nitrilodiacetic acid, nitrilotriacetic acid (NTA), ethylenediamine tetracetic acid, (EDTA); N-(Z-hydroxyethyl) ethylene diamine triacetic acid; 2-hydroxyethyl iminodiacetic acid; 1,Z-diaminocyclohexanediacetic acid; diethylenetriamine penta-acetic acid and the like.
  • the builder salt is preferably employed in amounts sufficient to yield a pH in water of from 6 to 13 and preferably from 6 to 10.
  • watersoluble, alkali metal pyrophosphate builder salts are particularly preferred for use herein. These salts form water-soluble complexes with calcium and magnesium ions found in hard water and thereby prevent the formation of water-soluble salts which would otherwise tend to deposit upon textiles during the wash cycle. Moreover, such phosphates enhance the detersive efliciency of non-anionic detergents and aid in controlling sudsing, while keeping soil suspended in the washing both after its removal from the soiled textiles. It will likewise be understood that mixtures comprising two or more of the aforementioned builder salts may be employed depending, as stated, on the particular requirements of the formulator.
  • compositions advantageously contain a hydrophobic colloidal cellulosic soil-suspending agent of a type which is soluble or dispersible in water.
  • a hydrophobic colloidal cellulosic soil-suspending agent of a type which is soluble or dispersible in water.
  • the conjoint use of the cellulosic compound and polyvinyl alcohol is found to be particularly effective as regards soilsuspension properties during the washing of a wide variety of fabrics including both cotton and synthetic fibers such as cotton, dacron, and resin-treated cottons.
  • the soilsuspending agent can be employed in amounts ranging from 0 to 3% by weight of the composition solids with a range of 0.1 to 2% being particularly preferred.
  • Cellulosic compounds found to be particularly suitable in this regard comprise the alkali metal salts of a carboxy lower alkyl cellulose having up to 3 carbon atoms in the alkyl group such as the sodium and potassium salts of carboxymethylcellulose.
  • Suitable salts are sodium carboxyethylcellulose; the cellulose sulfates and lower alkyl and hydroxyalkylcellulose others such as methyl-ethyl, ethyl, and hydroxyethylcellulose. It should also be pointed out that little in the way of criticality attends the selection of builder salt concentration and thus, thoseranges conventionally prescribed for relationships of the aforedescribed type are eminently suitable.
  • the desired pH level may be readily achieved by the addition of suitable buffering agents to the composition, such agents being provided either as a solution, dry powder, granules, flakes, etc.
  • suitable buffering agents such agents being provided either as a solution, dry powder, granules, flakes, etc.
  • the bleaching compositions of the present invention may be employed to optimum advantage at relatively high pH values thereby permitting the conjoint use of common household laundry soaps as well as detergents specifically designed for preventive bleaching of fibrous materials.
  • a chelating agent as for example the sodium salts of the diethylenetriamine pentacetic acid, ethylenediamine tetracetic acid, etc. and/0r magnesium silicate.
  • washing operations a pH within the range of about 6 to about 10 is recommended. I
  • the critical interdependency characterizing the perborate and N-benzoylimidazole ingredients in terms of effects of relative concentration on bleaching activity and behavior towards dyed goods will be illustrated in the following examples.
  • the signal advantage afforded by the present invention can be made readily manifest by a consideration of the data represented as Ab.
  • the data summarized represents a direct evaluation of the yellowing tendency exhibited by the Cannon Blue Percale samples as a result of being subjected to the tergotometer treatment. As will be recognized, any yellowing tendency is tantamount to color-impairment.
  • Reflectance readings are taken both before and after completion of the immersion treatment, the numerical difference therebetween being recorded as A Rd.
  • a Rd Reflectance readings are taken both before and after completion of the immersion treatment, the numerical difference therebetween being recorded as A Rd.
  • Increasing values, positively, of A Rd correspond to greater bleaching.
  • N-(dmethyl)-benzoylimidazole 2 1 18.
  • N-(p-nitro)-benzoylimidazole 3 1 19- N- (p-methyl) -b enzoyllmidazole- 2; 1 20.
  • i N-(p-ch1oro) -b enzoylimidazole 4 1 21 N-(p-methoxy) -benzoylirnidazole 2:1 22
  • N-(m-methyl)-benzoylimidazole 3 1 23 N -(1n-chloro) -benzoylimldazole.
  • compositions of the present invention seem to be completely independent of the type of detergent compound employed, i.e., whether nonionic, cationic, anionic, zwitterionic, etc.
  • the choice of detergent is purely a matter of discretion lying within the province of the formulator.
  • nonionic types of detergents would ordinarily be preferred.
  • cationic detergents may cidal activity is either necessary or desirable.
  • the present invention contemplates that mixtures comorising 2 or more of the activator, peroxide and/or detergent components may be recommended in certain instances; in this manner, the beneficial properties characterizing a plurality of such materials may be combined in a single composition.
  • a bleach composition consisting essentially of (a) a water soluble, stable, inorganic peroxygen compound, and
  • activator is N benzoylimidazole.
  • a composition according to claim 1 wherein activator is N-(p-nitro) -benzoylimidazole.
  • activator is N-(o-methyl)-benzoylimidazole.
  • activator is N-(p-methyl)-benzoylimidazole.
  • activator is N-(p-chloro)-benzoylimidazole.
  • activator is N-(p-methoxy) benzoylimidazole.
  • activator is N-(m-methyl) benzoylimidazole.
  • activator is N-(m-chloro)-benzoylimidazole.
  • activator is N-(o-chloro)-benzoylimidazole.
  • a composition according to claim 1 wherein said activator is N-(m-fluoro)-benzoylimidazo1e.
  • composition according to claim 1 wherein said mole ratio of (a) to (b) is within the range of from about 1.5 to about 10:1.
  • a composition according to claim 13 wherein said peroxygen compound is sodium per-borate tetrahydrate.
  • a composition according to claim 1 further containing a water soluble detergent in amounts ranging from about 2% to about 50% by weight of said composition.
  • a process of bleaching which comprises contacting a material to be bleached with an aqueous solution of the composition of claim 1.

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3846324A (en) * 1971-06-25 1974-11-05 Ciba Geigy Ag Detergents
US3956156A (en) * 1971-04-28 1976-05-11 Colgate-Palmolive Company Cleansing of fabrics
US4115060A (en) * 1977-10-03 1978-09-19 Fmc Corporation N-sulfonylimidazoles as peroxygen activators
US4167487A (en) * 1973-06-07 1979-09-11 Colgate-Palmolive Company Aromatic activator
US4283301A (en) * 1980-07-02 1981-08-11 The Procter & Gamble Company Bleaching process and compositions
US4367156A (en) * 1980-07-02 1983-01-04 The Procter & Gamble Company Bleaching process and compositions
US4430236A (en) 1981-06-22 1984-02-07 Texize, Division Of Mortonthiokol Liquid detergent composition containing bleach
US4525292A (en) * 1983-03-07 1985-06-25 Cushman Mark E Bleaching detergent compositions comprising sulfosuccinate bleach promoters
WO1992020228A1 (en) * 1991-05-15 1992-11-26 Sterilex Corporation Methods of using a cleaner, sanitizer, disinfectant, fungicide, sporicide, chemical sterilizer

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1355795A (en) * 1970-05-01 1974-06-05 Colgate Palmolive Co Process and composition for cleaning fabrics
ZA722320B (en) * 1971-04-28 1973-11-28 Colgate Palmolive Co Composition containing persalt and aromatic activator
US5584888A (en) * 1994-08-31 1996-12-17 Miracle; Gregory S. Perhydrolysis-selective bleach activators
US5460747A (en) * 1994-08-31 1995-10-24 The Procter & Gamble Co. Multiple-substituted bleach activators

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3956156A (en) * 1971-04-28 1976-05-11 Colgate-Palmolive Company Cleansing of fabrics
US3846324A (en) * 1971-06-25 1974-11-05 Ciba Geigy Ag Detergents
US4167487A (en) * 1973-06-07 1979-09-11 Colgate-Palmolive Company Aromatic activator
US4115060A (en) * 1977-10-03 1978-09-19 Fmc Corporation N-sulfonylimidazoles as peroxygen activators
US4283301A (en) * 1980-07-02 1981-08-11 The Procter & Gamble Company Bleaching process and compositions
US4367156A (en) * 1980-07-02 1983-01-04 The Procter & Gamble Company Bleaching process and compositions
US4430236A (en) 1981-06-22 1984-02-07 Texize, Division Of Mortonthiokol Liquid detergent composition containing bleach
US4525292A (en) * 1983-03-07 1985-06-25 Cushman Mark E Bleaching detergent compositions comprising sulfosuccinate bleach promoters
WO1992020228A1 (en) * 1991-05-15 1992-11-26 Sterilex Corporation Methods of using a cleaner, sanitizer, disinfectant, fungicide, sporicide, chemical sterilizer
US5320805A (en) * 1991-05-15 1994-06-14 Sterilex Corporation Methods of using a cleaner, sanitizer, disinfectant, fungicide, sporicide, chemical sterilizer

Also Published As

Publication number Publication date
SE363864B (enrdf_load_stackoverflow) 1974-02-04
AT303667B (de) 1972-12-11
ES380120A1 (es) 1972-08-16
NL7007764A (enrdf_load_stackoverflow) 1970-12-01
BE751077A (fr) 1970-11-03
FR2048843A5 (enrdf_load_stackoverflow) 1971-03-19
DE2023792A1 (de) 1971-01-07
ZA703002B (en) 1971-12-29
CH534204A (de) 1973-02-28
GB1311765A (en) 1973-03-28

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