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WO1997008288A1 - Chelatants degradables derives de l'acide succinique, leurs utilisations et compositions - Google Patents

Chelatants degradables derives de l'acide succinique, leurs utilisations et compositions Download PDF

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Publication number
WO1997008288A1
WO1997008288A1 PCT/US1996/013940 US9613940W WO9708288A1 WO 1997008288 A1 WO1997008288 A1 WO 1997008288A1 US 9613940 W US9613940 W US 9613940W WO 9708288 A1 WO9708288 A1 WO 9708288A1
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WO
WIPO (PCT)
Prior art keywords
acid
polyamino
monosuccinic
composition
disuccinic acid
Prior art date
Application number
PCT/US1996/013940
Other languages
English (en)
Inventor
David A. Wilson
Druce K. Crump
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The Dow Chemical 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 Dow Chemical Company filed Critical The Dow Chemical Company
Priority to EP96929808A priority Critical patent/EP0850293B1/fr
Priority to CA002230282A priority patent/CA2230282C/fr
Priority to BR9610178A priority patent/BR9610178A/pt
Priority to PCT/US1996/013940 priority patent/WO1997008288A1/fr
Priority to DE69616078T priority patent/DE69616078T2/de
Priority to JP9510584A priority patent/JPH11513058A/ja
Publication of WO1997008288A1 publication Critical patent/WO1997008288A1/fr

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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
    • C11D3/26—Organic compounds containing nitrogen
    • C11D3/33—Amino carboxylic acids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/52—Hydrogen sulfide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen oxides
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/31—Coating with metals
    • C23C18/38—Coating with copper
    • C23C18/40—Coating with copper using reducing agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/90—Chelants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/90—Chelants
    • B01D2251/902—EDTA

Definitions

  • This invention relates to chelants, particularly uses of certain synergistic combinations of degradable chelants.
  • Chelants or chelating agents are compounds which form coordinate covalent bonds with a metal ion to form chelates.
  • Chelates are coordination compounds in which a central metal atom is bonded to two or more other atoms in at least one other molecule (called ligand) such that at least one heterocyclic ring is formed with the metal atom as part of each ring.
  • Chelants are used in a variety of applications including food processing, soaps, detergents, cleaning products, personal care products, pharmaceuticals, pulp and paper processing, gas conditioning, water treatment, metalworking and metal plating solutions, textile processing solutions, fertilizers, animal feeds, herbicides, rubber and polymer chemistry, photofinishing, and oil field chemistry. Some of these activities result in chelants entering the environment. For instance, agricultural uses or detergent uses may result in measurable quantities of the chelants being in water. It is, therefore, desirable that chelants degrade after use.
  • Biodegradability that is susceptibility to degradation by microbes, is particularly useful because the microbes are generally naturally present in environments into which the chelants may be introduced.
  • Commonly used chelants like EDTA ethylenediamine tetraacetic acid
  • EDTA ethylenediamine tetraacetic acid
  • Tiedje "Microbial Degradation of Ethylenediaminetetraacetate in Soils and Sediments," Applied Microbiology, Aug. 1 975, pp. 327-329.
  • Biodegradation of chelants is of particular interest in many metal ion control applications. Examples include use of chelants in the following areas: electroless copper plating, prevention or removal of undesirable iron deposits, removal of organic stains from fabrics, scrubbing of H2S and/or NO x from gas streams via metal chelates, stabilizing peroxide in cellulosic bleaching systems, and others.
  • electroless copper plating prevention or removal of undesirable iron deposits
  • removal of organic stains from fabrics removal of organic stains from fabrics
  • scrubbing of H2S and/or NO x from gas streams via metal chelates
  • stabilizing peroxide in cellulosic bleaching systems and others.
  • the chelating agents that are most useful generally do not biodegrade in a desirable time (e.g.
  • ethylenediaminetetraacetic acid, N- hydroxyethylethlyenediaminetriacetic acid, diethylenetriaminepentaacetic acid, cyclohexanediaminetetraacetic acid, and propylenediaminetetraacetic acid) all biodegrade less than 60% in 28 days using the OECD 301 B Modified Sturm Test.
  • a chelant, or a mixture of chelants, useful in metal ion control processes where such chelant or mixture of chelants is greater than about 60 percent biodegradable within less than 28 days according to the OECD 301 B Modified Sturm Test.
  • a combination of chelants, or metal chelates thereof, comprising at least one polyamino disuccinic acid and one or more polyamino monosuccinic acids, or salts thereof have been found to be excellent for use in metal ion control applications where enhanced biodegradability is desired. It has been found that certain mixtures of chelants display unexpected metal ion control performance and ease of biodegradability
  • the invention includes methods of electroless plating using various metals (especially copper) complexed with a mixture of chelants comprising at least one polyamino disuccinic acid and one or more polyamino monosuccinic acids, or salts thereof. It includes a method of electroless deposition of copper upon a non-metallic surface receptive to the deposited copper including a step of contacting the non-metallic surface with an aqueous solution comprising a soluble copper salt and at least one polyamino disuccinic acid and one or more polyamino monosuccinic acids, or salts thereof.
  • a method of electroless copper plating which comprises immersing a receptive surface to be plated in an alkaline, autocatalytic copper bath comprising water, a water soluble copper salt, and at least one polyamino disuccinic acid and one or more polyamino monosuccinic acids, or salts thereof as the complexing agents for cupric ion.
  • the invention includes a bath for the electroless plating of copper which comprises water, a water soluble copper salt, at least one polyamino disuccinic acid and one or more polyamino monosuccinic acids, or salts thereof as complexing agents for cupric ions, sufficient alkali metal hydroxide to result in a pH of froml O to14, and a reducing agent.
  • Another aspect of the invention includes a method for removing iron oxide deposits or organic stains from a surface including a step of contacting the deposits or stains with a solution comprising at least one polyamino disuccinic acid and one or more polyamino monosuccinic acids, or salts thereof.
  • the invention includes a process of removing H2S from a fluid comprising contacting said fluid with an aqueous solution at a pH suitable for removing H2S wherein said solution contains at least one higher valence polyvalent metal chelate of at least one polyamino disuccinic acid and one or more polyamino monosuccinic acids, or salts thereof.
  • Another aspect of the gas conditioning invention includes a process of removing NO x from a fluid comprising contacting the fluid with an aqueous solution of at least one lower valence state polyvalent metal chelate of at least one polyamino disuccinic acid and one or more polyamino monosuccinic acids, or salts thereof.
  • the present invention is also to a laundry detergent composition
  • a laundry detergent composition comprising (a) froml % to80% by weight of a detergent surfactant selected from nonionic, anionic, cationic, zwitterionic, and ampholytic surfactants and mixtures thereof; (b) from5% to80% by weight of at least one detergent builder; and (c) from ⁇ .1 % to15% by weight of a combination of chelants comprising at least one polyamino disuccinic acid and one or more polyamino monosuccinic acids, or salts thereof.
  • a detergent surfactant selected from nonionic, anionic, cationic, zwitterionic, and ampholytic surfactants and mixtures thereof
  • b from5% to80% by weight of at least one detergent builder
  • c from ⁇ .1 % to15% by weight of a combination of chelants comprising at least one polyamino disuccinic acid and one or more polyamino monosuccinic acids, or salts thereof
  • the present invention is a liquid laundry detergent composition
  • a liquid laundry detergent composition comprising (a) from10% to50% by weight of a detergent surfactant selected from nonionic, anionic, cationic, zwitterionic, and ampholytic surfactants and mixtures thereof; (b) from 10% to40% by weight of at least one detergent builder; and (c) from ⁇ .1 % to 10% by weight of a combination of chelants comprising at least one polyamino disuccinic acid and one or more polyamino monosuccinic acids, or salts thereof.
  • a detergent surfactant selected from nonionic, anionic, cationic, zwitterionic, and ampholytic surfactants and mixtures thereof
  • b from 10% to40% by weight of at least one detergent builder
  • c from ⁇ .1 % to 10% by weight of a combination of chelants comprising at least one polyamino disuccinic acid and one or more polyamino monosuccinic acids, or salts thereof
  • the present invention is also to a granular laundry composition
  • a granular laundry composition comprising (a) from5% to50% by weight of a detergent surfactant selected from nonionic, anionic, cationic, zwitterionic, and ampholytic surfactants and mixtures thereof; (b) from 10% to40% by weight of at least one detergency builder; and (c) from ⁇ .1 % to 10% by weight of a combination of chelants comprising at least one polyamino disuccinic acid and one or more polyamino monosuccinic acids, or salts thereof.
  • a detergent surfactant selected from nonionic, anionic, cationic, zwitterionic, and ampholytic surfactants and mixtures thereof
  • b from 10% to40% by weight of at least one detergency builder
  • c from ⁇ .1 % to 10% by weight of a combination of chelants comprising at least one polyamino disuccinic acid and one or more polyamino monos
  • the above laundry compositions are used in a method of laundering fabrics comprising contacting a fabric with an aqueous solution of the above noted laundry detergent compositions.
  • the present invention is to the use of a mixture of at least one polyamino disuccinic acid and one or more polyamino monosuccinic acids, or salts thereof (also referred to herein as succinic acid mixtures). It has been unexpectedly found that when a mixture of such compounds is used to chelate a metal ion, such as iron, said mixtures show a greater ability to chelate the metal ion and such complexes have a greater stability than what would be expected from the sum of the individual compounds. Such mixtures also show an unexpected increase in biodegradability as measured by the OECD 301 B Modified Sturm Test.
  • Polyamino disuccinic acids are compounds having two or more nitrogen atoms wherein 2 of the nitrogens are bonded to a succinic acid (or salt) group, preferably only two nitrogen atoms each have one succinic acid (or salt) group attached thereto.
  • succinic acid includes salts thereof.
  • the compound has at least 2 nitrogen atoms, and due to the commercial availability of the amine, preferably has no more than about 10 nitrogen atoms, more preferably no more than about 6, most preferably 2 nitrogen atoms. Remaining nitrogen atoms most preferably are substituted with hydrogen atoms. More preferably, the succinic acid groups are on terminal nitrogen atoms, most preferably each of which nitrogens also has a hydrogen substituent.
  • each nitrogen having a succinic group has only one such group.
  • Remaining bonds on nitrogens having a succinic acid group are preferably filled by hydrogens or alkyl or alkylene groups (linear, branched or cyclic including cyclic structures joining more than one nitrogen atom or more than one bond of a single nitrogen atom, preferably linear) or such groups having ether or thioether linkages, all of preferably from 1 to 10 carbon atoms, more preferably from 1 to6 , most preferably from 1 to3 carbon atoms, but most preferably hydrogen.
  • the nitrogen atoms are linked by alkylene groups, preferably each of from2 to 12 carbon atoms, more preferably from2 to10 carbon atoms, even more preferably from 2 to8, most preferably from2 to6 carbon atoms.
  • the polyamino disuccinic acid compound preferably has at least about 10 carbon atoms and preferably has at most about 50, more preferably at most about 40, most preferably at most about 30 carbon atoms.
  • succinic acid is used herein for the acid and salts thereof; the salts include metal cation (e.g. potassium, sodium) and ammonium or amine salts.
  • Polyamino disuccinic acids useful in the practice of the invention are unsubstituted (preferably) or inertly substituted, that is substituted with groups that do not undesirably interfere with the activity of the polyamino disuccinic acid in a selected application.
  • inert substituents include alkyl groups (preferably of from 1 to6 carbon atoms); aryl groups including arylalkyl and alkylaryl groups (preferably of from 6 to12 carbon atoms), with alkyl groups preferred among these and methyl and ethyl groups preferred among alkyl groups.
  • Inert substituents are suitably on any portion of the molecule, preferably on carbon atoms, more preferably on alkylene groups, for example alkylene groups between nitrogen atoms or between carboxylic acid groups, most preferably on alkylene groups between nitrogen groups.
  • Preferred polyamino disuccinic acids include ethylenediamine-N,N'-disuccinic acid, diethylenetriamine-N,N"-disuccinic acid, triethylenetetraamine-N,N'"-disuccinic acid, 1 ,6- hexamethylenediamine N,N'-disuccinic acid, tetraethylenepentamine-N,N""- disuccinic acid, 2-hydroxypropylene-1 ,3-diamine-N,N'-disuccinic acid, 1 ,2- propylenediamine-N, N'-disuccinic acid, 1 ,3-propylenediamine-N,N'- disuccinic acid, cis-cyclohexanediamine-N, N'-disuccinic acid, trans- cyclohexanediamine-N, N'-disuccinic acid, and ethylenebis(oxyethylenenitrilo)-N, N'-disucc
  • Such polyamino disuccinic acids can be prepared, for instance, by the process disclosed by Kezerian et al. in U.S. Patent 3, 158,635 which is incorporated herein by reference in its entirety.
  • Kezerian et al disclose reacting maleic anhydride (or ester or salt) with a polyamine corresponding to the desired polyamino disuccinic acid under alkaline conditions.
  • the reaction yields a number of optical isomers, for example, the reaction of ethylenediamine with maleic anhydride yields a mixture of three optical isomers [R,R], [S,S] and [S,R] ethylenediamine disuccinic acid (EDDS) because there are two asymmetric carbon atoms in ethylenediamine disuccinic acid.
  • EDDS ethylenediamine disuccinic acid
  • [S,S] isomers are prepared by reaction of such acids as L-aspartic acid with such compounds as 1 ,2-dibromoethane as described by Neal and Rose, "Stereospecific Ligands and Their Complexes of Ethylenediaminedisuccinic Acid", Inorganic Chemistry, v. 7. (1968), pp. 2405-2412.
  • Polyamino monosuccinic acids are compounds having at least two nitrogen atoms to which a succinic acid (or salt) moiety is attached to one of the nitrogen atoms.
  • the compound has at least 2 nitrogen atoms, and due to the commercial availability of the amine, preferably has no more than about 10 nitrogen atoms, more preferably no more than about 6, most preferably 2 nitrogen atoms.
  • Remaining nitrogens atoms, those which do not have a succinic acid moiety attached preferably are substituted with hydrogen atoms.
  • the succinic acid moiety may be attached to any of the amines, preferably the succinic acid group is attached to a terminal nitrogen atom.
  • terminal it is meant the first or last amine which is present in the compound, irrespective of other substituents.
  • the remaining bonds on the nitrogen having a succinic acid group are preferably filled by hydrogens or alkyl or alkylene groups (linear, branched or cyclic including cyclic structures joining more than one nitrogen atom or more than one bond of a single nitrogen atom, preferably linear) or such groups having ether or thioether linkages, all of preferably from 1 to 10 carbon atoms, more preferably from 1 to 6, most preferably from 1 to3 carbon atoms, but most preferably hydrogen.
  • the nitrogen atoms are linked by alkylene groups, each of from2 to 12 carbon atoms, preferably from 2 to10 carbon atoms, more preferably from 2 to8, and most preferably from 2 to6 carbon atoms.
  • the polyamino monosuccinic acid compound preferably has at least about 6 carbon atoms and preferably has at most about 50, more preferably at most about 40, and most preferably at most about 30 carbon atoms.
  • Polyamino monosuccinic acids useful in the practice of the invention are unsubstituted (preferably) or inertly substituted as described above for polyamino disuccinic acid compounds.
  • Preferred polyamino monosuccinic acids include ethylenediamine monosuccinic acid, diethylenetriamine monosuccinic acid, triethylenetetraamine monosuccinic acid, 1 ,6-hexamethylenediamine monosuccinic acid, tetraethylenepentamine monosuccinic acid, 2- hydroxypropylene-1 ,3-diamine monosuccinic acid, 1 ,2-propylenediamine monosuccinic acid, 1 ,3-propylenediamine monosuccinic acid, cis- cyclohexanediamine monosuccinic acid, trans-cyclohexanediamine monosuccinic acid and ethylenebis(oxyethylenenitrilo) monosuccinic acid.
  • the preferred polyamino monosuccinic acid is ethylenediamine monosuccinic acid.
  • Such polyamino monosuccinic acids can be prepared for instance, by the process of Bersworth et al. in U.S. Patent 2,761 ,874, the disclosure of which is incorporated herein by reference, and as disclosed in Jpn. Kokai Tokkyo Koho JP 57,1 16,031.
  • Bersworth et al. disclose reacting alkylene diamines and dialkylene triamines under mild conditions with maleic acid esters under mild conditions (in an alcohol) to yield amino derivatives of N-alkyl substituted aspartic acid. The reaction yields a mixture of the R and S isomers.
  • the chelant solution contains a mixture of a polyamino disuccinic acid and a polyamino monosuccinic acid
  • the polyamino substituent of the polyamino disuccinic acid and the polyamino monosuccinic acid are the same.
  • the polyamine monosuccinic acid is ethylenediamine monosuccinic acid.
  • the invention includes the use of iron complexes of a polyamino disuccinic acid and a polyamino monosuccinic acid in abatement of hydrogen sulfide and other acid gases and as a source of iron in plant nutrition.
  • other metal complexes such as the copper, zinc and manganese complexes supply those trace metals in plant nutrition.
  • the ferrous complexes are also useful in nitrogen oxide abatement.
  • Iron complexes used in the present invention are conveniently formed by mixing an iron compound with an aqueous solution of the succinic acid mixtures, or salts thereof.
  • the pH values of the resulting iron chelate solutions are preferably adjusted with an alkaline material such as ammonia solution, sodium carbonate, or dilute caustic (NaOH).
  • Water soluble iron compounds are conveniently used.
  • Exemplary iron compounds include iron nitrate, iron sulfate, and iron chloride.
  • the final pH values of the iron chelate solutions are preferably in the range of 4 to 9, more preferably in the range of 5 to 8.
  • an insoluble iron source such as iron oxide
  • the succinic acid compounds are preferably heated with the insoluble iron source in an aqueous medium at an acidic pH.
  • ammoniated amino succinic acid solutions are particularly effective.
  • Ammoniated amino succinic acid chelants are conveniently formed by combining aqueous ammonia solutions and aqueous solutions or slurries of amino succinic acids in the acid (rather than salt) form.
  • Succinic acid mixtures are effective as chelants especially for metals such as iron and copper. Effectiveness as a chelant is conveniently measured by complexing the chelant with a metal such as copper such as by mixing an aqueous solution of known concentration of the chelant with an aqueous solution containing copper (II) ions of known concentration and measuring chelation capacity by titrating the chelant with copper in the presence of an indicator dye.
  • the succinic acid compounds are preferably employed in the form of water-soluble salts, notably alkali metal salts, ammonium salts, or alkyl ammonium salts.
  • the alkali metal salts can involve one or a mixture of alkali metal salts although the potassium or sodium salts, especially the partial or complete sodium salts of the acids are preferred.
  • Succinic acid mixtures are also useful, for instance, in food products vulnerable to metal-catalyzed spoilage or discoloration; in cleaning products for removing metal ions, that may reduce the effectiveness, appearance, stability, rinsibility, bleaching effectiveness, germicidal effectiveness or other property of the cleaning agents; in personal care products like creams, lotions, deodorants and ointments to avoid metal-catalyzed oxidation and rancidity, turbidity, reduced shelf-life ; in pulp and paper processing to enhance or maintain bleaching effectiveness; in pipes, vessels, heat exchangers, evaporators, filters to avoid or remove scaling, in pharmaceuticals; in metal working; in textile preparation, desizing, scouring, bleaching, dyeing ; in agriculture as in chelated micronutrients or herbicides; in polymerization or stabilization of polymers; in the oil field such as for drilling, production, recovery, hydrogen sulfide abatement.
  • the chelants can be used in industrial processes whenever metal ions such as iron or copper are a nuisance and are to be prevented.
  • the succinic acid mixtures disclosed in the present application may be used in a variety of applications, as is disclosed for the use of disuccinic acid compounds in WO 94/05674 published May 20, 1994. These uses include the use of succinic acid mixtures for the electroless deposition of metals such as nickel and copper; in the polymerization of rubber; in the textile industry; in agriculture to supply micronutrients; and in gas conditioning to remove H 2 S, nitrous oxides (NO x ) and SO 2 .
  • Succinic acid mixtures are also useful in laundry detergents, particularly laundry detergents containing a detergent surfactant and builder.
  • the mixtures of the succinic acids facilitate the removal of organic stains such as tea stains, grape juice stains and various food stains from fabrics during laundering operations.
  • the stains are believed to contain metals such as copper and iron.
  • the succinic acid mixtures are very effective in chelating these metals and thus aids in the removal of the troublesome stain.
  • compositions comprise from 1 % to 80% by weight of a detergent surfactant, preferably from 10% to 50%, selected from nonionic surfactants, anionic surfactants, cationic surfactants, zwitterionic surfactants, ampholytic surfactants and mixturtes thereof; from 5% to 80% by weight of a detergent builder, preferably from10% to 50%; and from 0.1 % to 15% by weight of amino succinic acids, preferably from 1 % to 10%, or alkali metal, alkaline earth, ammonium or substituted ammonium salt thereof, or mixtures thereof.
  • a detergent surfactant preferably from 10% to 50%, selected from nonionic surfactants, anionic surfactants, cationic surfactants, zwitterionic surfactants, ampholytic surfactants and mixturtes thereof
  • a detergent builder preferably from10% to 50%
  • amino succinic acids preferably from 1 % to 10%, or alkali metal, alkaline earth, ammonium or substituted ammonium
  • the molar ration of the polyamino disuccinic acid to the polyamino disuccinic acid to the polyamino monosuccinic acid is from 99:1 to 5:95.
  • Nonionic surfactants that are suitable for use in the present invention include those that are disclosed in U.S. 3,929,678 (Laughlin et al.), incorporated herein by reference. Included are the condensation products of ethylene oxide with aliphatic alcohols, the condensation of ethylene oxide with the base formed by the condensation of propylene oxide and propylene glycol or the product formed by the condensation of propylene oxide and ethylendiamine. Also included are the various polyethylene oxide condensates of alkyl phenols and various amine oxide surfactants.
  • Anionic surfactants that are suitable for use are described in U.S. 3,929,678. These include sodium and potassium alkyl sulfates; various salts of higher fatty acids, and alkyl polyethoxylate sulfates.
  • Cationic surfactants that may be used are described in U.S. 4,228,044 (Cambre), incorporated herein by reference. Especially preferred cationic surfactants are the quaternary ammonium surfactants.
  • ampholytic and zwitterionic surfactants such as those taught in U.S. 3,929,678 can be used in the present invention.
  • Suitable builder substances are for example: wash alkalis, such as sodium carbonate and sodium silicate, or complexing agents, such as phosphates, or ion exchangers, such as zeolites, and mixtures thereof. These builder substances have as their function to eliminate the hardness ions, which come partially from the water, partially from dirt or textile material, and to support the surfactant action.
  • the builder component may further contain cobuilders. in modern detergents, it is the function of cobuilders to undertake some of the functions of phosphates, for example sequestration, soil antiredeposition and primary and secondary washing action.
  • the builder components may contain for example water-insoluble silicates, as described for example in German Laid-Open Application DE-OS No. 2,412,837, and/or phosphates.
  • phosphate it is possible to use pyrophosphates, triphosphates, higher polyphosphates and metaphosphates.
  • phosphorus-containing organic complexing agents such as alkanepolyphosphonic acids, amino- and hydroxy-alkanepolyphosphonic acids and phosphonocarboxylic acids, are suitable for use as further detergent ingredients generally referred to as stabilizers or phosphonates.
  • detergent additives are the following compounds: methanediphosphonic acid, propane-1 ,2,3-triphosphonic acid, butane-1 ,2,3,4-tetraphosphonic acid, polyvinylphosphonic acid, 1 -aminoethane,-1 ,1 -diphosphonic acid, aminotrismethylenetriphosphonic acid, methylamino- or ethylamino-bismethylenediphosphonic acid, ethylenediaminetetramethylenephosphonic acid, diethylenetriaminopentamethylenephosphonic acid, 1-hydroxyethane-1 ,1 -diphosphonic acid, phosphonoacetic and phosphonopropionic acid, copolymers of vinylphosphonic acid and acrylic and/or maleic acid and also partially or completely neutralized salts thereof.
  • organic compounds which act as chelants for calcium that may be present in detergent formulations are polycarboxylic acids, hydroxycarboxylic acids and aminocarboxylic acids which are usually used in the form of their water-soluble salts.
  • polycarboxylic acids examples include dicarboxylic acids of the general formula HOOC-(CH J -COOH where m is 0-8, and maleic acid,
  • hydroxymonocarboxylic and hydroxypolycarboxylic acids are glycollic acid, lactic acid, malic acid, tartronic acid, methyltartronic acid, gluconic acid, glyceric acid, citric acid, tartaric acid and salicylic acid.
  • aminocarboxylic acids are glycine, glycylglycine, alanine, asparagine, glutamic acid, aminobenzoic acid, iminodiacetic acid, iminotriacetic acid, hydroxyethyliminodiacetic acid, ethylenediaminetetraacetic acid, hydroxyethylethylenediaminetriacetic acid, diethylenetriaminepentaacetic acid and higher homologues which are prepared by polymerization of an N-aziridylcarboxylic acid derivative, for example of acetic acid, succinic acid or tricarballylic acid, and subsequent hydrolysis, or by condensation of polyamines having a molecular weight of from 500 to 10,000 with salts of chloroacetic or bromoacetic acid.
  • Preferred cobuilder substances are polymeric carboxylates. These polymeric carboxylic acids include the carboxymethyl ethers of sugars, of starch and of cellulose. Zeolites and phosphates are also useful.
  • Particularly important polymeric carboxylic acids are for example the polymers of acrylic acid, maleic acid, itaconic acid, mesaconic acid, aconitic acid, methylenemalonic acid, citraconic acid, the copolymers between the aforementioned carboxylic acids, for example a copolymer of acrylic acid and maleic acid in a ration of 70:30 and having a molecular weight of 70,000, or copolymers thereof with ethylenically unsaturated compounds, such as ethylene, propylene, isobutylene, vinyl methyl ether, furan, acrolein, vinyl acetate, acrylamide, acrylonitrile methacrylic acid, crotonic acid, for example the 1 : 1 copolymers of maleic anhydride and methyl vinyl ether having a molecular weight of 70,000 or the copolymers of maleic anhydride and ethylene and/or propylene and/or furan.
  • the cobuilders may further contain soil antiredeposition agents which keep the dirt detached from the fiber in suspension in the liquid and thus inhibit graying.
  • soil antiredeposition agents which keep the dirt detached from the fiber in suspension in the liquid and thus inhibit graying.
  • water-soluble colloids usually of an organic nature, for example the water-soluble salts of polymeric carboxylic acids, glue, gelatin, salts of ethercarboxylic acids or ethersulfonic acids of starch and of cellulose or salts of acid sulfates of cellulose and of starch.
  • Even water-soluble polyamides containing acid groups are suitable for this purpose.
  • Polyvinylpyrrolidone is also usable.
  • Bleaching agents that can be used are in particular hydrogen peroxide and derivatives thereof or available chlorine compounds.
  • bleaching agent compounds which provide H O in water, sodium perborate hydrates, such as NaBO .H O .3H O and NaBO .H O and
  • peroxyhydrates such as peroxyphosphonates, citrate perhydrates, urea, H O -providing peracid salts, for example caroates, perbenzoates or peroxyphthalates or other peroxy compounds.
  • customary water-soluble and/or water-insoluble stabilizers for peroxy compounds can be incorporated together with the former in amounts from 0.25 to 10 percent by weight, based on the peroxy compound.
  • Suitable water-insoluble stabilizers are the magnesium silicates MgO:SiO from 4:1 to 1 :4, preferably from 2:1 to 1 :2, in particular 1 :1 , in composition, usually obtained by precipitation from aqueous solutions.
  • Other alkaline earth metals of corresponding composition are also suitably used.
  • bleach activators in the detergent, advantageously in an amount from 5 to 30 percent by weight, based on the H O -providing compound.
  • Activators for peroxy compounds which provide H O in water are certain N-acyl and O-acyl compounds, in particular acetyl, propionyl or benzyl compounds, which form organic peracids with H O and also carbonic and pyrocarbonic esters.
  • N-diacylated and N,N'-tetraacylated amines for example N,N,N',N'-tetraacetyl-methylenediamine or -ethylenediamine, N,N-diacetylaniline and N,N-diacetyl-p-toluidine, and 1 ,3-diacylated hydantoins, alkyl-N-sulfonyl-carboxamides, N-acylated hydrazides, acylated triazoles or urazoles, for example monoacetylmaleohydrazide, O,N,N-trisubstituted hydroxylamines, for example O-benzoyl-N,N-succinylhydroxylamine, O-acetyl-N,N-succinyl-hydroxylamine, O-p-methoxybenzoyl-N,N-succinyl-hydroxylamine
  • carboxylic anhydrides for example benzoic anhydride, m-chlorobenzoic anhydride, phthalic anhydride and 4-chlorophthalic anhydride
  • sugar esters for example glucose pentaacetate
  • imidazolidine derivatives such as 1 ,3 -diformyl -4,5-diacetoxyimidazolidine, 1 ,3-diacetyl-4,5-diacetoxyimidazoline and
  • acylated glycolurils for example tetrapropionylglycoluril or diacetyldibenzoylglycoluril
  • dialkylated 2,5-diketopiperazines for example 1 ,4-dipropionyl-2,5-diketopiperazine and 1 ,4-dipropionyl-3,6-dimethyl-2,5-diketopiperazine and 1 ,4-dipropionyl-3,6-2,5-diketopiperazine
  • the bleaching agents used can also be active chlorine compounds of the inorganic or organic type.
  • Inorganic active chlorine compounds include alkali metal hypochlorites which can be used in particular in the form of their mixed salts and adducts on orthophosphates or condensed phosphates, for example on pyrophosphates and polyphosphates or on alkali metal silicates. If the detergent contains monopersulfates and chlorides, active chlorine will form in aqueous solution.
  • Organic active chlorine compounds are in particular the N-chlorine compounds where one or two chlorine atoms are bonded to a nitrogen atom and where preferably the third valence of the nitrogen atom leads to a negative group, in particular to a CO or SO group.
  • These compounds include dichlorocyanuric and trichlorocyanuric acid and their salts, chlorinated alkylguanides or alkylbiguanides, chlorinated hydantoins and chlorinated melamines.
  • foam regulants in particular if surfactants of the sulfonate or sulfate type are used, are surface-active carboxybetaines or sulfobetaines and also the above mentioned nonionics of the alkylolamide type. Also suitable for this purpose are fatty alcohols or higher terminal diols.
  • Reduced foaming which is desirable in particular for machine washing, is frequently obtained by combining various types of surfactants, for example sulfates and/or sulfonates, with nonionics and/or with soaps.
  • surfactants for example sulfates and/or sulfonates, with nonionics and/or with soaps.
  • soaps In the case of soaps, the foam inhibition increases with the degree of saturation and the number of carbon atoms of the fatty acid ester; soaps of saturated C -C -fatty acids, therefore, are particularly suitable for use as
  • the nonsurfactant-like foam inhibitors include optionally chlorine-containing N-alkylated aminotriazines which are obtained by reacting 1 mole of cyanuric chloride with from 2 to 3 moles of a mono- and/or dialkylamine having 6 to 20, preferably 8 to 18, carbon atoms in the alkyl.
  • a similar effect is possessed by propoxylated and/or butoxylated aminotriazines, for example, products obtained by addition of from 5 to 10 moles of propylene oxide onto 1 mole of melamine and further addition of from 10 to 50 moles of butylene oxide onto this propylene oxide derivative.
  • nonsurfactant-like foam inhibitors are water-soluble organic compounds, such as paraffins or haloparaffins having melting points below 100°C, aliphatic C - to C -ketones and also
  • the detergents may contain optical brighteners for cotton, for polyamide, for polyacrylonitrile or for polyester fabrics.
  • optical brighteners examples include derivatives of diaminostilbenedisulfonic acid for cotton, derivatives of 1 ,3-diarylpyrazolines for polyamide, quaternary salts of 7-methoxy-2-benzimidazol-2'-ylbenzofuran or of derivatives form the class of the 7-[1 ',2',5'-triazol-1 '-yl]-3-[1 ",2",4"-triazol-1 "-y] coumarins for polyacrylonitrile.
  • Examples of brighteners suitable for polyester are products of the class of the substituted styryls, ethylenes, thiophenes, naphthalenedicarboxylic acids or derivatives thereof, stilbenes, coumarins and naphthalimides.
  • laundry compositions herein also contain enzymes to enhance their through-the-wash cleaning performance on a variety of soils and stains.
  • Amylase and protease enzymes suitable for use in detergents are well known in the art and in commercially available liquid and granular detergents.
  • Commercial detersive enzymes preferably a mixture of amylase and protease are typically used at levels of from ⁇ .001 to2 weight percent, and higher, in the present cleaning compositions.
  • Detergent formulations of this invention may contain minor amounts of other commonly used materials in order to enhance the effectiveness or attractiveness of the product.
  • exemplary of such materials are soluble sodium carboxymethyl cellulose or other soil redeposition inhibitors; benzotriazole, ethylene thiourea, or other tarnish inhibitors; perfume; fluorescers; dyes or pigments; brightening agents; enzymes; water; alcohols; other builder additives, such as the water soluble salts of ethylenediaminetetraacetic acid,
  • N-(2-hydroxyethyl)-ethylenediaminetriacetic acid and pH adjusters, such as sodium hydroxide and potassium hydroxide.
  • Other optional ingredients include pH regulants, polyester soil release agents, hydrotropes and gel-control agents, freeze-thaw stabilizers, bactericides, preservatives, suds control agents, fabric softeners especially clays and mixtures of clays with various amines and quaternary ammonium compounds.
  • hydrotropic agents may be found efficacious.
  • Suitable hydrotropes include the water-soluble alkali metal salts of toluene sulfonic acid, benzene sulfonic acid, and xylene sulfonic acid. Potassium toluene sulfonate and sodium toluene sulfonate are preferred for this use and will normally be employed in concentrates ranging up to about 10 or 12 percent by weight based on the total composition.
  • compositions of this invention may be formulated according to any of the various commercially desirable forms.
  • the formulations of this invention may be provided in granular form, in liquid form, in tablet form of flakes or powders.
  • compositions are prepared using techniques within the skill in the art.
  • EDDS ethylenediamine N, N'-disuccinic acid
  • EDMS ethylenediamine N- monosuccinic acid
  • Samples of EDMS and various isomers of EDDS were tested for biodegradability according to the OECD 301 B Modified Sturm Test.
  • the test measures the CO2 produced by the test compound or standard, which was used as the sole carbon source for the microbes. The following samples were tested:
  • Each compound was tested at a 20 ppm dose level (based on EDMS or EDDS component active as the acid form). Each compound was evaluated as a series comprising a test vessel, a standard vessel, and a blank vessel.
  • the seed innoculum for each test compound series was obtained from organisms previously exposed to the respective compound in a semi-continuous activated sludge test. The total volume in the vessels was 2100 ml each.
  • acetic acid was used as the standard at a concentration of 20 ppm in each series.
  • a blank vessel was used to determine the inherent CO2 evolved from each respective innoculum. Carbon dioxide captured in respective barium hydroxide traps was measured at various times during the 28-day test period. The cumulative results of the test were summarized in Table 4.
  • Ratios (molar) of EDDS to EDMS of 90/10, 80/20, 60/40, 40/60, 20/80 and 10/90 were prepared and titrated with 0.01 M copper solution using Murexide as the indicator.
  • the chelant mixtures were all found to complex copper on an equivalent (equimolar) basis.

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Abstract

Solutions comportant au moins un acide polyamino-disuccinique et un ou plusieurs acides polyamino-monosucciniques utiles dans le traitement de gaz (de préférence par chélate de fer). Les chélates de cuivre sont également utiles au dépôt de cuivre chimique. L'invention concerne également l'utilisation de mélanges à base d'acide amino-succinique dans des compositions détergentes de blanchissage.
PCT/US1996/013940 1995-08-30 1996-08-29 Chelatants degradables derives de l'acide succinique, leurs utilisations et compositions WO1997008288A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP96929808A EP0850293B1 (fr) 1995-08-30 1996-08-29 Chelatants degradables derives de l'acide succinique, leurs utilisations et compositions
CA002230282A CA2230282C (fr) 1995-08-30 1996-08-29 Chelatants degradables derives de l'acide succinique, leurs utilisations et compositions
BR9610178A BR9610178A (pt) 1995-08-30 1996-08-29 Composição de detergente para lavanderia composição para lava-louças automático método para lavar tecidos processo para remover nox de um fluido método para deposição não elétrica de cobre e composição para quelar um mental
PCT/US1996/013940 WO1997008288A1 (fr) 1995-08-30 1996-08-29 Chelatants degradables derives de l'acide succinique, leurs utilisations et compositions
DE69616078T DE69616078T2 (de) 1995-08-30 1996-08-29 Abbaubare chelate aus bernsteinsäure derivate, verwendungen und zusammensetzung derselben
JP9510584A JPH11513058A (ja) 1995-08-30 1996-08-29 琥珀酸誘導体分解性キレート化剤、その使用及びその組成物

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PCT/US1996/013940 WO1997008288A1 (fr) 1995-08-30 1996-08-29 Chelatants degradables derives de l'acide succinique, leurs utilisations et compositions

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999039045A1 (fr) * 1998-01-31 1999-08-05 The Procter & Gamble Company Compositions aqueuses comprenant des agents de complexion, et leurs utilisations
GB2338476A (en) * 1998-06-19 1999-12-22 Procter & Gamble Heavy metal precipitation from aqueous solutions
US6325858B1 (en) * 1997-11-03 2001-12-04 Asm America, Inc. Long life high temperature process chamber

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB757704A (en) * 1952-04-22 1956-09-26 Dow Chemical Co Improvements in amino derivatives of n-alkyl substituted aspartic acids and their functional derivatives
EP0361088A1 (fr) * 1988-08-26 1990-04-04 TRIGON CHEMIE GmbH Dérivés de l'acide aspartique et procédé pour leur préparation
EP0567126A1 (fr) * 1992-04-24 1993-10-27 Fuji Photo Film Co., Ltd. Composition de traitement pour un produit photographique à l'halogénure d'argent et méthode de traitement l'utilisant
WO1994003572A1 (fr) * 1992-08-01 1994-02-17 Procter & Gamble Company Compositions detersives
WO1994011099A1 (fr) * 1992-11-16 1994-05-26 The Procter & Gamble Company Emulsions aqueuses stables de tensio-actifs non ioniques comprenant un agent regulant la viscosite
WO1994020599A1 (fr) * 1993-03-05 1994-09-15 The Procter & Gamble Company Produits detergents a base d'acides ethylenediamine-n,n'-diglutarique et 2-hydroxypropylenediamine-n,n'-disuccinique
WO1994028464A1 (fr) * 1993-05-20 1994-12-08 The Dow Chemical Company Chelateurs degradables derives de l'acide succinique, leurs utilisations et leurs compositions

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB757704A (en) * 1952-04-22 1956-09-26 Dow Chemical Co Improvements in amino derivatives of n-alkyl substituted aspartic acids and their functional derivatives
EP0361088A1 (fr) * 1988-08-26 1990-04-04 TRIGON CHEMIE GmbH Dérivés de l'acide aspartique et procédé pour leur préparation
EP0567126A1 (fr) * 1992-04-24 1993-10-27 Fuji Photo Film Co., Ltd. Composition de traitement pour un produit photographique à l'halogénure d'argent et méthode de traitement l'utilisant
WO1994003572A1 (fr) * 1992-08-01 1994-02-17 Procter & Gamble Company Compositions detersives
WO1994011099A1 (fr) * 1992-11-16 1994-05-26 The Procter & Gamble Company Emulsions aqueuses stables de tensio-actifs non ioniques comprenant un agent regulant la viscosite
WO1994020599A1 (fr) * 1993-03-05 1994-09-15 The Procter & Gamble Company Produits detergents a base d'acides ethylenediamine-n,n'-diglutarique et 2-hydroxypropylenediamine-n,n'-disuccinique
WO1994028464A1 (fr) * 1993-05-20 1994-12-08 The Dow Chemical Company Chelateurs degradables derives de l'acide succinique, leurs utilisations et leurs compositions

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0850293A1 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6325858B1 (en) * 1997-11-03 2001-12-04 Asm America, Inc. Long life high temperature process chamber
WO1999039045A1 (fr) * 1998-01-31 1999-08-05 The Procter & Gamble Company Compositions aqueuses comprenant des agents de complexion, et leurs utilisations
GB2338476A (en) * 1998-06-19 1999-12-22 Procter & Gamble Heavy metal precipitation from aqueous solutions

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