Automatic dishwashing composition with 1,2,4-trihydroxybenzene (SALT)

Abstract

An automatic dishwashing composition is provided, comprising: a builder; a nonionic surfactant; a dispersant polymer; 1,2,4-trihydroxybenzene (salt); and, optionally, a filler.

Description

AUTOMATIC DISHWASHING COMPOSITION WITH 1.2.4-TRIHYDROXYBENZENE (SALT)

[0001] The present invention relates to an automatic dishwashing composition. In particular, the present invention relates to automatic dishwashing compositions comprising: (a) a builder; (b) a nonionic surfactant; (c) a dispersant polymer; (d) 1,2,4-trihydroxybenzene (salt); and, optionally, (e) a filler.

[0002] Phosphate free automatic dishwashing compositions have historically often relied in part on the use of phosphonates, for example, 1 -hydroxy ethane- 1 , 1 -diphosphonic acid (HEDP) for continued performance in the absence of phosphates, such as sodium trypolyphosphate (STPP). Notwithstanding, there is a current asserted desire to remove all phosphorus and phosphorus derived ingredients (e.g., phosphates — such as tripolyphosphate; and phosphonates — such as HEDP) from automatic dishwashing compositions.

[0003] Accordingly, there is a need to identify a substitute for phosphonates (e.g., HEDP) commonly used in commercial automatic dishwashing formulations. In particular, there remains a need for new ingredients for use in automatic dish washing formulations, wherein the new ingredient performs comparably to phosphonates, such as HEDP, in automatic dishwashing formulations.

[0004] The present invention provides an automatic dishwashing composition, comprising: (a) a builder; (b) a nonionic surfactant; (c) a dispersant polymer; (d) 1,2,4-trihydroxybenzene (salt); and, optionally, (e) a filler.

[0005] The present invention provides an automatic dishwashing composition, comprising: (a) a builder; (b) a nonionic surfactant; (c) a dispersant polymer, wherein the dispersant polymer comprises < 1 wt%, based on weight of the dispersant polymer, of structural units of sulfonated monomer; (d) 1,2,4-trihydroxybenzene (salt); and, optionally, (e) a filler.

[0006] The present invention provides an automatic dishwashing composition, comprising: (a) a builder; (b) a nonionic surfactant; (c) a dispersant polymer, wherein the dispersant polymer comprises: (i) 60 to 98 wt%, based on solids weight of the dispersant polymer, of structural units of formula Iwherein each R1is independently selected from a hydrogen and a -CH3 group; and (ii) 2 to 40 wt%, based on solids weight of the dispersant polymer, of structural units of formula IIwherein each R2is independently selected from a -C1-4 alkyl group and wherein each R3is independently selected from a hydrogen and a methyl group; wherein the dispersant polymer has a weight average molecular weight of 4,000 to 50,000 Daltons; and wherein the dispersant polymer comprises < 1 wt%, based on weight of the dispersant polymer, of structural units of sulfonated monomer; (d) 1 ,2,4-trihydroxybenzene (salt); and, optionally, (e) a filler.

[0007] The present invention provides an automatic dishwashing composition, comprising: (a) a builder; (b) a nonionic surfactant; (c) a dispersant polymer, wherein the dispersant polymer comprises: (i) 60 to 80 wt%, based on solids weight of the dispersant polymer, of structural units of formula I; wherein each R1is independently selected from a hydrogen and a -CH3 group; and (ii) 20 to 40 wt%, based on solids weight of the dispersant polymer, of structural units of formula II; wherein each R2is independently selected from a -C1-4 alkyl group and wherein each R3is independently selected from a hydrogen and a methyl group; wherein the dispersant polymer has a weight average molecular weight of 4,000 to 50,000 Daltons; and wherein the dispersant polymer comprises < 1 wt%, based on weight of the dispersant polymer, of structural units of sulfonated monomer; (d) 1,2,4-trihydroxybenzene (salt); and, optionally, (e) a filler.

[0008] The present invention provides an automatic dishwashing composition, comprising: (a) a builder; (b) a nonionic surfactant; (c) a dispersant polymer, wherein the dispersant polymer comprises: (i) 60 to 80 wt%, based on solids weight of the dispersant polymer, of structural units of formula I; wherein each R1is independently selected from a hydrogen and a -CH3 group; and (ii) 20 to 40 wt%, based on solids weight of the dispersant polymer, of structural units of formula II; wherein each R2is independently selected from a -C1-4 alkyl group and wherein each R3is independently selected from a hydrogen and a methyl group; wherein the dispersant polymer has a weight average molecular weight of 4,000 to 50,000 Daltons; and wherein the dispersant polymer comprises < 1 wt%, based on weight of the dispersant polymer, of structural units of sulfonated monomer; (d) 1,2,4-trihydroxybenzene (salt); and, optionally, (e) a filler; wherein the automatic dishwashing composition contains <0.1 wt%, based on the dry weight of the automatic dishwashing composition, of phosphate and phosphonate, measured as elemental phosphorus.

[0009] The present invention provides an automatic dishwashing composition, comprising: (a) 50 to 60 wt%, based on dry weight of the automatic dishwashing composition, of a builder, wherein the builder includes a mixture of at least one carbonate and at least one citrate; (b) 4 to 8 wt%, based on dry weight of the automatic dishwashing composition, of a nonionic surfactant; (c) 3 to 6 wt%, based on dry weight of the automatic dishwashing composition, of a dispersant polymer, wherein the dispersant polymer comprises: (i) 60 to 80 wt%, based on solids weight of the dispersant polymer, of structural units of formula I; wherein each R1is independently selected from a hydrogen and a -CH3 group and wherein R1is a hydrogen in at least 98 mol% of the structural units of formula I; and (ii) 20 to 40 wt%, based on solids weight of the dispersant polymer, of structural units of formula II; wherein each R2is independently selected from a -C1-4 alkyl group and wherein R2is an ethyl group in at least 98 mol% of the structural units of formula II; and wherein each R3is independently selected from a hydrogen and a methyl group and wherein R3is a hydrogen in at least 98 mol% of the structural units of formula II; wherein the dispersant polymer has a weight average molecular weight of 4,000 to 50,000 Daltons; and wherein the dispersant polymer comprises < 1 wt%, based on weight of the dispersant polymer, of structural units of sulfonated monomer; (d) 5 to 10 wt%, based on dry weight of the automatic dishwashing composition, of 1 ,2,4-trihydroxybenzene (salt); (e) 2 to 10 wt%, based on the dry weight of the automatic dishwashing composition, of a filler; wherein the filler is sodium sulfate; (f) 5 to 20 wt%, based on dry weight of the automatic dishwashing composition, of a bleaching agent, wherein the bleaching agent is selected from the group consisting of sodium percarbonate and sodium perborate; and (g) 2.5 to 7.5 wt%, based on the dry weight of the automatic dishwashing composition, of a bleach activator; wherein the bleach activator is tetraacetylethylenediamine; wherein the automatic dishwashing composition contains < 0.1 wt%, based on the dry weight of the automatic dishwashing composition, of phosphate and phosphonate, measured as elemental phosphorus; wherein the automatic dishwashing composition contains 0 wt%, based on the dry weight of the automatic dishwashing composition, of builders selected from the group consisting of nitrilotriacetic acid; ethylenediaminetetraacetic acid; diethylenetriaminepentaacetic acid; glycine-N,N-diacetic acid; methyl glycine-N,N-diacetic acid; 2-hydroxyethyliminodiacetic acid; glutamic acid-N,N-diacetic acid; 3-hydroxy-2,2’-iminodissuccinate; S,S -ethylenediaminedisuccinate aspartic acid-diacetic acid; N,N’ -ethylene diamine disuccinic acid; iminodisuccinic acid;aspartic acid; aspartic acid-N,N-diacetic acid; beta-alaninediacetic acid; polyaspartic acid; salts thereof and mixtures thereof.

[0010] The present invention provides a method of cleaning an article in an automatic dishwashing machine, comprising: providing at least one article, wherein the at least one article includes glassware; providing an automatic dishwashing composition according to the present invention; and applying the automatic dishwashing composition to the at least one article.DETAILED DESCRIPTION

[0011] Surprisingly, it has been found that, 1 ,2,4-trihydroxybenzene (salt) effectively performs as an ecologically advantageous substitute for phosphonates (e.g., l-hydroxyethane-l,l-diphosphonic acid (HEDP)) in automatic dishwashing compositions.

[0012] Unless otherwise indicated, ratios, percentages, parts, and the like are by weight. Weight percentages (or wt%) in the composition are percentages of dry weight, i.e., excluding any water that may be present in the composition. Percentages of monomer units in the polymer are percentages of solids weight, i.e., excluding any water present in a polymer emulsion.

[0013] As used herein, unless otherwise indicated, the phrase "molecular weight" refers to the number average or weight average molecular weight as measured in a conventional manner with gel permeation chromatography (GPC) and conventional standards, such as polystyrene molecular weight standards. GPC techniques are discussed in detail in Modern Size Exclusion Liquid Chromatography - Practice of Gel Permeation and Gel Filtration Chromatography, Second Edition, A.M. Striegel, W. W. Yau, J. J. Kirkland, D. D. Bly; John Wiley & Sons, Inc. 2009. Molecular weights are reported herein in units of Daltons, or equivalently, g / mol.

[0014] The term "structural units" as used herein and in the appended claims refers to the remnant of the indicated monomer; thus a structural unit of (meth)acrylic acid is illustrated:wherein the dotted lines represent the points of attachment to the polymer backbone and where R1is a hydrogen for structural units of acrylic acid and a -CH3 group for structural units of methacrylic acid.

[0015] The term " 1 ,2,4-trihydroxybenzene (salt)" as used herein and in the appended claims refers to 1 ,2,4-trihydroxybenzene, a salt of 1 ,2,4-trihydroxybenzene or a mixture of 1 ,2,4-trihydroxybenzene and a salt of 1,2,4-trihydroxybenzene.

[0016] Preferably, the automatic dishwashing composition of the present invention, comprises: (a) a builder (preferably, 1 to 95 wt% (more preferably, 20 to 90 wt%; still more preferably, 30 to 80 wt%; yet more preferably, 40 to 70 wt%; most preferably, 50 to 60 wt%), based on the dry weight of the automatic dishwashing composition, of the builder)(preferably, wherein the builder includes a mixture of at least one carbonate and at least one citrate); (b) a nonionic surfactant (preferably, 0.5 to 25 wt% (more preferably, 1 to 20 wt%; still more preferably; 1.5 to 15 wt%; yet more preferably, 2 to 10 wt%; most preferably, 4 to 8 wt%), based on the dry weight of the automatic dishwashing composition, of the nonionic surfactant)(preferably, wherein the nonionic surfactant is a nonionic alcohol alkoxylate); (c) a dispersant polymer (preferably, 0.1 to 12 wt% (more preferably, 0.5 to 10 wt% still more preferably, 1 to 8 \vt% yet more preferably, 2 to 7.5 \vt% most preferably, 3 to 6 wt%), based on the dry weight of the automatic dishwashing composition, of the dispersant polymer), wherein the dispersant polymer comprises < 1 wt% (preferably, < 0.1 wt%; more preferably, < 0.01 wt%; still more preferably, < 0.001 wt%; yet more preferably, < 0.0001 wt%; most preferably, < the detectable limit), based on weight of the dispersant polymer, of structural units of sulfonated monomer; (d) 1,2,4-trihydroxybenzene (salt) (preferably, 1 to 20 wt% (more preferably. 2 to 17.5 wt%; still more preferably. 3 to 15 wt%; yet more preferably, 4 to 12 wt%; most preferably, 5 to 10 wt%), based on the dry weight of the automatic dishwashing composition, of the 1,2,4-trihydroxybenzene (salt)); and, optionally, (e) a filler (preferably 0 to 75 wt% filler)(preferably, wherein the automatic dishwashing composition contains < 0.1 wt% (preferably, < 0.01 wt%; more preferably, < 0.001 wt%; still more preferably, < 0.0001 wt%; most preferably, < the detectable limit), based on the dry weight of the automatic dishwashing composition, of phosphate and phosphonate, measured as elemental phosphorus).

[0017] Preferably, the automatic dishwashing composition of the present invention, comprises 1 to 95 wt% (preferably, 20 to 90 wt%; more preferably, 30 to 80 wt%; still more preferably, 40 to 70 wt%; most preferably, 50 to 60 wt%), based on the dry weight of the automatic dishwashing composition, of a builder. More preferably, the automatic dishwashing composition of the present invention, comprises 1 to 95 wt% (preferably, 20 to 90 wt%; more preferably, 30 to 80 wt%; still more preferably, 40 to 70 wt%; most preferably, 50 to 60 wt%), based on the dry weight of the automatic dishwashing composition, of abuilder, wherein the builder comprises a mixture of at least one carbonate and at least one citrate. Still more preferably, the automatic dishwashing composition of the present invention, comprises 1 to 95 wt% (preferably, 20 to 90 wt%; more preferably, 30 to 80 wt%; still more preferably, 40 to 70 wt%; most preferably, 50 to 60 wt%), based on the dry weight of the automatic dishwashing composition, of a builder; wherein the builder comprises a mixture of sodium carbonate and sodium citrate. Most preferably, the automatic dishwashing composition of the present invention, comprises 1 to 95 wt% (preferably, 20 to 90 wt%; more preferably, 30 to 80 wt%; still more preferably, 40 to 70 wt%; most preferably, 50 to 60 wt%), based on the dry weight of the automatic dishwashing composition, of a builder; wherein the builder comprises a mixture of sodium carbonate, sodium silicate and sodium citrate. Weight percentages of carbonate, citrate and silicate builders are based on the actual weights of the salts, including metal ions.

[0018] The term "carbonate(s)" as used herein and in the appended claims refers to alkali metal or ammonium salts of carbonate, bicarbonate and / or sesquicarbonate. Preferably, the carbonate used in the automatic dishwashing composition (if any) is selected from the group consisting of carbonate salts of sodium, potassium and lithium (more preferably, salts of sodium or potassium; most preferably, salts of sodium). Most preferably, the carbonate used in the automatic dishwashing composition (if any) includes at least one of sodium carbonate and sodium bicarbonate. Preferably, when the builder used in the automatic dishwashing composition of the present invention includes carbonate, the automatic dishwashing composition preferably, comprises 0 to 95 wt% (preferably, 10 to 75 wt%; more preferably, 20 to 60 wt%; most preferably 25 to 50 wt%), based on the dry weight of the automatic dishwashing composition, of carbonate.

[0019] The term "citrate(s)" as used herein and in the appended claims refers to alkali metal citrates. Preferably, the citrate used in the automatic dishwashing composition (if any) is selected from the group consisting of citrate salts of sodium, potassium and lithium (more preferably, salts of sodium or potassium; most preferably, salts of sodium). More preferably, the citrate used in the automatic dishwashing composition (if any) is sodium citrate. Preferably, when the builder used in the automatic dishwashing composition of the present invention includes citrate, the automatic dishwashing composition preferably, comprises 0 to 95 wt% (preferably, 5 to 75 wt%; more preferably, 10 to 50 wt%; most preferably 15 to 30 wt%), based on the dry weight of the automatic dishwashing composition, of the citrate.

[0020] The term "silicate(s)" as used herein and in the appended claims refers to alkali metal silicates. Preferably, the silicate used in the automatic dishwashing composition (if any) isselected from the group consisting of silicate salts of sodium, potassium and lithium (more preferably, salts of sodium or potassium; most preferably, salts of sodium). More preferably, the silicate used in the automatic dishwashing composition (if any) is sodium disilicate. Preferably, the builder used in the automatic dishwashing composition of the present invention includes a silicate. Preferably, when the builder used in the automatic dishwashing composition of the present invention includes a silicate, the automatic dishwashing composition preferably, comprises 0 to 95 wt% (preferably, 0.1 to 10 wt%; more preferably, 0.5 to 7.5 wt%; most preferably 0.75 to 4 wt%), based on the dry weight of the automatic dishwashing composition, of the silicate.

[0021] Preferably, the automatic dishwashing composition of the present invention, comprises: 0.5 to 25 wt% (preferably, 1 to 20 wt%; more preferably, 1.5 to 15 wt%; still more preferably, 2 to 20 wt%; most preferably, 4 to 8 wt%), based on the dry weight of the automatic dishwashing composition, of a nonionic surfactant. More preferably, the automatic dishwashing composition of the present invention, comprises: 0.5 to 25 wt% (preferably, 1 to 20 wt%; more preferably, 1.5 to 15 wt%; still more preferably, 2 to 20 wt%; most preferably, 4 to 8 wt%), based on the dry weight of the automatic dishwashing composition, of a nonionic surfactant; wherein the surfactant comprises at least one of an alcohol alkoxylate. Most preferably, the automatic dishwashing composition of the present invention, comprises: 0.5 to 25 wt% (preferably, 1 to 20 wt%; more preferably, 1.5 to 15 wt%; still more preferably, 2 to 20 wt%; most preferably, 4 to 8 wt%), based on the dry weight of the automatic dishwashing composition, of a nonionic surfactant; wherein the nonionic surfactant is a blend of alcohol alkoxylate surfactants (preferably, a blend of at least two different nonionic alcohol alkoxylate surfactants; more preferably, a blend of two to three different nonionic alcohol alkoxylate surfactants).

[0022] Preferably, the automatic dishwashing composition of the present invention, comprises: 0.5 to 25 wt% (preferably, 1 to 20 wt%; more preferably, 1.5 to 15 wt%; still more preferably, 2 to 20 wt%; most preferably, 4 to 8 wt%), based on the dry weight of the automatic dishwashing composition, of a nonionic surfactant; wherein the nonioinic surfactant is of formula IIIwherein n?is an average of 5 to 40 (preferably, 7 to 27; more preferably, 8 to 20; most preferably, 7 to 12); wherein R4is selected from the group consisting of a hydrogen and a linear or branched C1-20 alkyl group (preferably, a hydrogen, and a linear or branched CM 5 alkyl group; more preferably, a hydrogen and a linear C 1-15 alkyl group); wherein R5is a linear or branched C1-20 alkyl group (preferably, a linear or branched C1-15 alkyl group; more preferably, a linear Ci-15 alkyl group); wherein each R6is independently selected from the group consisting of a hydrogen, a methyl group, an ethyl group, a n-propyl group, an isopropyl group, a n-butyl group, a 2-butyl group and a 2-methyl-2-butyl group (preferably, a hydrogen, a methyl group and an ethyl group); and with the proviso that sum of the total number of carbon atoms in R4and R5is 5 to 21 (preferably, 6 to 20 carbon atoms; more preferably, 7 to 18 carbon atoms; most preferably, 11 to 15 carbon atoms)(preferably, wherein the nonionic surfactant is a blend of at least two different nonionic surfactants according to formula III; more preferably, wherein the nonionic surfactant is a blend of two to three nonionic surfactants according to formula III). More preferably, the automatic dishwashing composition of the present invention, comprises: 0.5 to 25 wt% (preferably, 1 to 20 wt%; more preferably, 1.5 to 15 wt%; still more preferably, 2 to 20 wt%; most preferably, 4 to 8 wt%), based on the dry weight of the automatic dishwashing composition, of a nonionic surfactant; wherein the nonionic surfactant includes a nonionic surfactant of formula III; wherein w is an average of 8 to 16; wherein R4is selected from the group consisting of a hydrogen and a linear C1-15 alkyl group; wherein Rsis a linear or branched C1-15 alkyl group; and with the proviso that the sum of the total number of carbon atoms in R4and R5is 6 to 20. Most preferably, the automatic dishwashing composition of the present invention, comprises: 0.5 to 25 wt% (preferably, 1 to 20 wt%; more preferably, 1.5 to 15 wt%; still more preferably, 2 to 20 wt%; most preferably, 4 to 8 wt%), based on the dry weight of the automatic dishwashing composition, of a nonionic surfactant; wherein the nonioinic surfactant includes a nonionic surfactant of formula III; wherein w is an average of 7 to 12; wherein R4is selected from the group consisting of a hydrogen and a linear C1-15 alkyl group; wherein R5is a linear C1-15 alkyl group; and with the proviso that the sum of the total number of carbon atoms in R4and Rsis 7 to 18.

[0023] Preferably, the automatic dishwashing composition of the present invention, comprises: 0.5 to 25 wt% (preferably, 1 to 20 wt%; more preferably, 1.5 to 15 wt%; still more preferably, 2 to 20 wt%; most preferably, 4 to 8 wt%), based on the dry weight of the automatic dishwashing composition, of a nonionic surfactant of formula III, wherein the nonionic surfactant of formula III includes a nonionic surfactant of formula Illawherein x is an average of 5 to 15 (preferably, 7 to 12; more preferably, 8 to 10); wherein y is an average of 0 to 15 (preferably, 0 to 10; more preferably, 0 to 8; most preferably, 0 to 6); wherein R4is selected from the group consisting of a hydrogen and a linear or branched C1-20 alkyl group (preferably, a hydrogen and a linear or branched C1-15 alkyl group; more preferably, a hydrogen and a linear C 1-15 alkyl group); wherein R5is a linear or branched C1-20 alkyl group (preferably, a linear or branched C1-15 alkyl group; more preferably, a linear Cj-is alkyl group); and with the proviso that the sum of the total number of carbon atoms in R4and R5is 5 to 21 (preferably, 6 to 20 carbon atoms; more preferably, 7 to 18 carbon atoms; most preferably, 11 to 15 carbon atoms). More preferably, the automatic dishwashing composition of the present invention, comprises: 0.5 to 25 wt% (preferably, 1 to 20 wt%; more preferably, 1.5 to 15 wt%; still more preferably, 2 to 20 wt%; most preferably, 4 to 8 wt%), based on the dry weight of the automatic dishwashing composition, of a nonionic surfactant; wherein the nonionic surfactant includes a nonionic surfactant of formula Illa; wherein x is an average of 8 to 10; wherein y is an average of 0 to 6; wherein R4is selected from the group consisting of a hydrogen and a linear C1-15 alkyl group; wherein Rsis a linear or branched Ci-15 alkyl group; and with the proviso that the sum of the total number of carbon atoms in R4and R5is 6 to 20. Most preferably, the automatic dishwashing composition of the present invention, comprises: 0.5 to 25 wt% (preferably, 1 to 20 wt%; more preferably, 1.5 to 15 wt%; still more preferably, 2 to 20 wt%; most preferably, 4 to 8 wt%), based on the dry weight of the automatic dishwashing composition, of a nonionic surfactant including a nonionic surfactant of formula Illa; wherein x is an average of 7 to 12; wherein y is 0; wherein R4is selected from the group consisting of a hydrogen or a linear C1-15 alkyl group; wherein R5is a linear C1-15 alkyl group; and with the proviso that the sum of the total number of carbon atoms in R4and Rsis 7 to 18.

[0024] Preferably, the automatic dishwashing composition of the present invention, comprises 0.1 to 12 wt% (preferably, 0.5 to 10 wt%; more preferably, 1 to 8 wt%; still more preferably, 2 to 7.5 wt%; most preferably, 3 to 6 wt%), based on the dry weight of the automatic dishwashing composition, of a dispersant polymer. More preferably, the automatic dishwashing composition of the present invention, comprises 0.1 to 12 wt% (preferably, 0.5to 10 wt%; more preferably, 1 to 8 wt%; still more preferably, 2 to 7.5 wt%; most preferably, 3 to 6 wt%), based on the dry weight of the automatic dishwashing composition, of a dispersant polymer; wherein the dispersant polymer comprises < 1 wt% (preferably, < 0.1 wt%; more preferably, < 0.01 wt%; still more preferably, < 0.001 wt%; yet more preferably, < 0.0001 wt%; most preferably, < the detectable limit), based on weight of the dispersant polymer, of structural units of sulfonated monomer. Still more preferably, the automatic dishwashing composition of the present invention, comprises 0.1 to 12 wt% (preferably, 0.5 to 10 wt%; more preferably, 1 to 8 wt%; still more preferably, 2 to 7.5 wt%; most preferably, 3 to 6 wt%), based on the dry weight of the automatic dishwashing composition, of a dispersant polymer; wherein the dispersant polymer comprises 60 to 98 wt% (preferably, 60 to 80 wt%; more preferably, 65 to 77.5 wt%; most preferably, 70 to 75 wt%), based on solids weight of the dispersant polymer, of structural units of formula Iwherein each R1is independently selected from a hydrogen and a -CH3 group (preferably, wherein R1is a hydrogen in 75 to 100 mol% (preferably, 90 to 100 mol%; more preferably, 98 to 100 mol%; still more preferably, > 99 mol%; most preferably, 100 mol%) of the structural units of formula I in the dispersant polymer); 2 to 40 wt% (preferably, 20 to 40 wt%; more preferably, 22.5 to 35 wt%; most preferably, 25 to 30 wt%), based on solids weight of the dispersant polymer, of structural units of formula IIwherein each R2is independently selected from a -C1-4 alkyl group (preferably, a methyl group, an ethyl group and a butyl group; more preferably, an ethyl group and a butyl group; most preferably, an ethyl group)(preferably, wherein R2is an ethyl group in 75 to 100 mol% (preferably, 90 to 100 mol%; more preferably, 98 to 100 mol%; most preferably, 100 mol%) of the structural units of formula II in the dispersant polymer); and wherein each R3is independently selected from a hydrogen and a methyl group (preferably, wherein R3is ahydrogen in 75 to 100 mol% (preferably, 90 to 100 mol%; more preferably, 98 to 100 mol%; most preferably, 100 mol%) of the structural units of formula II in the dispersant polymer); and wherein the dispersant polymer comprises < 1 wt% (preferably, < 0.1 wt%; more preferably, < 0.01 wt%; still more preferably, < 0.001 wt%; yet more preferably, < 0.0001 wt%; most preferably, < the detectable limit), based on weight of the dispersant polymer, of structural units of sulfonated monomer. Aqueous solution, free radical polymerization methods of making the dispersant copolymer of structural units of formula I and formula II are well known.

[0025] Preferably, the dispersant polymer has a weight average molecular weight of 1 ,000 to 50,000 Daltons. More preferably, the dispersant polymer has a weight average molecular weight of 2,500 to 25,000 Daltons. Still more preferably, the dispersant polymer has a weight average molecular weight of 4,000 to 25,000 Daltons. Yet more preferably, the dispersant polymer has a weight average molecular weight of 4,500 to 15,000 Daltons. Most preferably, the dispersant polymer has a weight average molecular weight of 4,750 to 10,000 Daltons.

[0026] Preferably, the dispersant polymer comprises < 0.3 wt% (more preferably, < 0.1 wt%; still more preferably, < 0.05 wt%; yet still more preferably, < 0.03 wt%; most preferably, < 0.01 wt%) of structural units of multi-ethylenically unsaturated crosslinking monomer.

[0027] Preferably, the dispersant polymer comprises < 1 wt% (preferably, < 0.5 wt%; more preferably, < 0.001 wt%; still more preferably, < 0.0001 wt%; most preferably, < the detectable limit) of structural units of sulfonated monomer. More preferably, the dispersant polymer comprises < 1 wt% (preferably, < 0.5 wt%; more preferably, < 0.001 wt%; still more preferably, < 0.0001 wt%; most preferably, < the detectable limit) of structural units of sulfonated monomer selected from the group consisting of 2-acrylamido-2-methylpropane sulfonic acid (AMPS), 2-methacrylamido-2-methylpropane sulfonic acid, 4-styrenesulfonic acid, vinylsulfonic acid, 3-allyloxy sulfonic acid, 2 -hydroxy-1 -propane sulfonic acid (HAPS), 2- sulfoethyl(meth) acrylic acid, 2-sulfopropyl(meth)acrylic acid, 3-sulfopropyl(meth)acrylic acid, 4-sulfobutyl(meth)acrylic acid and salts thereof. Most preferably, the dispersant polymer comprises < 1 wt% (preferably, < 0.5 wt%; more preferably, < 0.001 wt%; still more preferably, < 0.0001 wt%; most preferably, < the detectable limit) of structural units of 2-acrylamido-2-methylpropane sulfonic acid (AMPS) monomer.

[0028] Preferably, the automatic dishwashing composition of the present invention, comprises 1 to 20 wt% (preferably, 2 to 17.5 wt%; more preferably. 3 to 15 wt%; still more preferably, 4 to 12 wt%; most preferably, 5 to 10 wt%), based on the dry weight of theautomatic dishwashing composition, of 1,2,4-trihydroxybenzene (salt). More preferably, the automatic dishwashing composition of the present invention, comprises 1 to 20 wt% (preferably, 2 to 17.5 wt%; more preferably, 3 to 15 wt%; still more preferably, 4 to 12 wt%; most preferably, 5 to 10 wt%), based on the dry weight of the automatic dishwashing composition, of 1,2,4-trihydroxybenzene (salt); wherein the 1,2,4-trihydroxybenzene (salt) is a mixture of 1,2,4-trihydroxybenzene and a salt of 1,2,4-trihydroxybenzene.

[0029] The automatic dishwashing composition of the present invention, optionally further comprises an additive. Preferably, the automatic dishwashing composition of the present invention, further comprises an additive selected from the group consisting of an alkaline source; a bleaching agent (e.g., sodium percarbonate, sodium perborate); a bleach activator (e.g., tetraacetylethylenediamine (TAED)); a bleach catalyst (e.g., manganese(II) acetate, cobalt(II) chloride, bis(TACN)magnesium trioxide diacetate); an enzyme (e.g., protease, amylase, lipase, or cellulase); a foam suppressant; a coloring agent; a fragrance; an antibacterial agent; a filler (e.g., sodium sulfate); and mixtures thereof. More preferably, the automatic dishwashing composition of the present invention, further comprises an additive, wherein the additive is selected from the group consisting of a bleaching agent, a bleach activator, an enzyme, a filler and mixtures thereof. Still more preferably, the automatic dishwashing composition of the present invention, further comprises an additive, wherein the additive includes a bleaching agent (e.g., sodium percarbonate, sodium perborate); a bleach activator (e.g., tetraacetylethylenediamine (TAED)) and a filler (sodium sulfate). Most preferably, the automatic dishwashing composition of the present invention, further comprises an additive, wherein the additive includes a bleaching agent, wherein the bleaching agent includes sodium percarbonate; a bleach activator, wherein the bleach activator includes tetraacetylethylenediamine (TAED); and a filler, wherein the filler includes sodium sulfate.

[0030] Fillers included in automatic dishwashing compositions of the present invention (in powder of tablet formats) are inert, water-soluble substances, typically sodium or potassium salts (e.g., sodium sulfate, potassium sulfate, sodium chloride, potassium cloride). In tablet and powder formats, fillers are typically present in amounts ranging from 0 wt% to 75 wt% (preferably, 2 to 10 wt%) , based on dry weight of the automatic dishwashing composition. Fillers included in gel formulations typically include those mentioned for use in tablets and powders and also water. Fragrances, dyes, foam suppressants, enzymes and antibacterial agents usually total no more than 10 wt%, alternatively no more than 5 wt%, of the automatic dishwashing composition.

[0031] The automatic dishwashing composition of the present invention, optionally further comprises: an alkaline source. Suitable alkaline sources include, without limitation, alkali metal carbonates and alkali metal hydroxides, such as sodium or potassium carbonate, bicarbonate, sesquicarbonate, sodium, lithium, or potassium hydroxide, or mixtures of the foregoing. Sodium hydroxide is preferred. The amount of alkaline source in the automatic dishwashing composition of the present invention (if any) is at least 1 wt% (preferably, at least 20 wt%) and up to 80 wt% (preferably, up to 60 wt%), based on the dry weight of the automatic dishwashing composition.

[0032] The automatic dishwashing composition of the present invention, optionally further comprises: a bleaching agent (e.g., sodium percarbonate). The amount of the bleaching agent in the automatic dishwashing composition of the present invention (if any) is preferably at a concentration of 1 to 25 wt% (preferably, 2.5 to 20 wt%; more preferably, 5 to 20 wt%), based on the dry weight of the automatic dishwashing composition.

[0033] The automatic dishwashing composition of the present invention, optionally further comprises: a bleach activator (e.g., tetraacetylethylenediamine (TAED)). The amount of the bleach activator in the automatic dishwashing composition of the present invention (if any) is preferably at a concentration of 1 to 10 wt% (preferably, 2.5 to 7.5 wt%), based on the dry weight of the automatic dishwashing composition.

[0034] Preferably, the automatic dishwashing composition of the present invention, optionally further comprises: an enzyme (e.g., protease and amylase). More preferably, the automatic dishwashing composition of the present invention, optionally further comprises: 0 to 20 wt% (preferably, 2 to 15 wt%; more preferably, 4 to 12 wt%), based on the dry weight of the automatic dishwashing composition, of an enzyme. Most preferably, the automatic dishwashing composition of the present invention, further comprises: 0 to 10 wt% (preferably, 2 to 7.5 wt%; more preferably, 3 to 6 wt%), based on the dry weight of the automatic dishwashing composition, of a protease; and 0 to 10 wt% (preferably, 2 to 7.5 wt%; more preferably, 2.5 to 4.5 wt%), based on the dry weight of the automatic dishwashing composition, of an amylase.

[0035] Preferably, the automatic dishwashing composition of the present invention, comprises: (a) 50 to 60 wt%, based on dry weight of the automatic dishwashing composition, of a builder; (b) 4 to 8 wt%, based on dry weight of the automatic dishwashing composition, of a nonionic surfactant; (c) 3 to 6 wt%, based on dry weight of the automatic dishwashing composition, of a dispersant polymer, wherein the dispersant polymer (preferably, wherein the dispersant polymer comprises < 1 wt% (preferably, < 0.1 wt%; more preferably, < 0.01wt%; still more preferably, < 0.001 wt%; yet more preferably, < 0.0001 wt%; most preferably, < the detectable limit), based on weight of the dispersant polymer, of structural units of sulfonated monomer); (d) 5 to 10 wt%, based on dry weight of the automatic dishwashing composition, of 1 ,2, 4- trihydroxybenzene (salt); (e) 2 to 10 wt%, based on the dry weight of the automatic dishwashing composition, of a filler; (f) 5 to 20 wt%, based on dry weight of the automatic dishwashing composition, of a bleaching agent; and (g) 2.5 to 7.5 wt%, based on the dry weight of the automatic dishwashing composition, of a bleach activator. More preferably, (a) 50 to 60 wt%, based on dry weight of the automatic dishwashing composition, of a builder, wherein the builder includes a mixture of at least one carbonate and at least one citrate; (b) 4 to 8 wt%, based on dry weight of the automatic dishwashing composition, of a nonionic surfactant; wherein the nonionic surfactant comprises an alcohol alkoxylate surfactant; (c) 3 to 6 wt%, based on dry weight of the automatic dishwashing composition, of a dispersant polymer, wherein the dispersant polymer comprises: (i) 60 to 98 wt%, based on solids weight of the dispersant polymer, of structural units of formula I; wherein each R1is independently selected from a hydrogen and a -CH3 group; and (ii) 2 to 40 wt%, based on solids weight of the dispersant polymer, of structural units of formula II; wherein each R2is independently selected from a -CM alkyl group and wherein each R3is independently selected from a hydrogen and a methyl group; wherein the dispersant polymer has a weight average molecular weight of 4,000 to 50,000 Daltons and wherein the dispersant polymer comprises < 1 wt% (preferably, < 0. 1 wt% ; more preferably, < 0.01 wt%; still more preferably, < 0.001 wt%; yet more preferably, < 0.0001 wt%; most preferably, < the detectable limit), based on weight of the dispersant polymer, of structural units of sulfonated monomer; (d) 5 to 10 wt%, based on dry weight of the automatic dishwashing composition, of 1 ,2, 4- trihydroxybenzene (salt); (e) 2 to 10 wt%, based on the dry weight of the automatic dishwashing composition, of a filler; wherein the filler is sodium sulfate; (f) 5 to 20 wt%, based on dry weight of the automatic dishwashing composition, of a bleaching agent, wherein the bleaching agent is selected from the group consisting of sodium percarbonate and sodium perborate; and (g) 2.5 to 7.5 wt%, based on the dry weight of the automatic dishwashing composition, of a bleach activator; wherein the bleach activator is tetraacetylethylenediamine. Most preferably, (a) 50 to 60 wt%, based on dry weight of the automatic dishwashing composition, of a builder, wherein the builder includes a mixture of at least one carbonate and at least one citrate; (b) 4 to 8 wt%, based on dry weight of the automatic dishwashing composition, of a nonionic surfactant; wherein the nonionic surfactant comprises a mixture of nonionic alcohol alkoxylate surfactants; (c) 3 to 6 wt%, based on dryweight of the automatic dishwashing composition, of a dispersant polymer, wherein the dispersant polymer comprises: (i) 60 to 98 wt%, based on solids weight of the dispersant polymer, of structural units of formula I; wherein each R1is independently selected from a hydrogen and a -CH3 group; wherein R1is a hydrogen in at least 98 mol% of the structural units of formula I; and (ii) 2 to 40 wt%, based on solids weight of the dispersant polymer, of structural units of formula II; wherein each R2is independently selected from a -C1-4 alkyl group; wherien R2is an ethyl group in at least 98 mol% of the structural units of formula II; wherein each R3is independently selected from a hydrogen and a methyl group; wherein R3is a hydrogen in at least 98 mo% of the structural units of formula II; wherein the dispersant polymer has a weight average molecular weight of 4,000 to 50,000 Daltons and wherein the dispersant polymer comprises < 1 wt% (preferably, < 0.1 wt%; more preferably, < 0.01 wt%; still more preferably, < 0.001 wt%; yet more preferably, < 0.0001 wt%; most preferably, < the detectable limit), based on weight of the dispersant polymer, of structural units of sulfonated monomer; (d) 5 to 10 wt%, based on dry weight of the automatic dishwashing composition, of 1 ,2,4-trihydroxybenzene (salt); (e) 2 to 10 wt%, based on the dry weight of the automatic dishwashing composition, of a filler; wherein the filler is sodium sulfate; (f) 5 to 20 wt%, based on dry weight of the automatic dishwashing composition, of a bleaching agent, wherein the bleaching agent is selected from the group consisting of sodium percarbonate and sodium perborate; and (g) 2.5 to 7.5 wt%, based on the dry weight of the automatic dishwashing composition, of a bleach activator; wherein the bleach activator is tetraacetylethylenediamine.

[0036] Preferably, the automatic dishwashing composition of the present invention comprises< 0.1 wt% (preferably, < 0.01 wt%; more preferably, < 0.001 wt%; still more preferably, < 0.0001 wt%; most preferably, < the detectable limit), based on weight of the automatic dishwashing composition, of phosphate and phosphonate, measured as elemental phosphorus.

[0037] Preferably, the automatic dishwashing composition of the present invention comprises< 1 wt% (preferably, < 0.5 wt%; more preferably, < 0.2 wt%; still more preferably, < 0.1 wt%; yet still more preferably, < 0.01 wt%; most preferably, < the detectable limit), based on the dry weight of the automatic dishwashing composition, of builders selected from the group consisting of nitrilotriacetic acid; ethylenediaminetetraacetic acid; diethylenetriaminepentaacetic acid; glycine-N,N-diacetic acid; methyl glycine-N,N-diacetic acid; 2-hydroxyethyliminodiacetic acid; glutamic acid-N,N-diacetic acid;3 -hydroxy-2,2 ’-iminodissuccinate; S,S -ethylenediaminedisuccinate aspartic acid-diacetic acid; N,N’ -ethylene diamine disuccinic acid; iminodisuccinic acid; aspartic acid; asparticacid-N,N-diacetic acid; beta- alaninediacetic acid; polyaspartic acid; salts thereof and mixtures thereof. Most preferably, the automatic dishwashing composition of the present invention contains 0 wt% of builders selected from the group consisting of nitrilotriacetic acid; ethylenediaminetetraacetic acid; diethylenetriaminepentaacetic acid; glycine-N,N-diacetic acid; methyl glycine-N,N-diacetic acid; 2-hydroxyethyliminodiacetic acid; glutamic acid-N,N-diacetic acid; 3-hydroxy-2,2’-iminodissuccinate;S,S-ethylenediaminedisuccinate aspartic acid-diacetic acid; N,N’ -ethylene diamine disuccinic acid; iminodisuccinic acid; aspartic acid; aspartic acid-N,N-diacetic acid; beta-alaninediacetic acid; polyaspartic acid; salts thereof and mixtures thereof.

[0038] Preferably, the automatic dishwashing composition of the present invention comprises< 1 wt% (preferably, < 0.1 wt%; more preferably, < 0.01 wt%; still more preferably, < 0.001 wt%; most preferably, less than detectable limit), based on dry weight of the automatic dishwashing composition, of polymer comprising structural units of sulfonated monomer. More preferably, the automatic dishwashing composition of the present invention comprises< 1 wt% (preferably, < 0.1 wt%; more preferably, < 0.01 wt%; still more preferably, < 0.001 wt%; most preferably, less than detectable limit), based on dry weight of the automatic dishwashing composition, of polymer comprising structural units of sulfonated monomer selected from the group consisting of 2-acrylamido-2-methylpropane sulfonic acid (AMPS),2-methacrylamido-2-methylpropane sulfonic acid, 4-styrenesulfonic acid, vinylsulfonic acid,3-allyloxy sulfonic acid, 2-hydroxy-l -propane sulfonic acid (HAPS), 2-sulfoethyl(meth)acrylic acid, 2-sulfopropyl(meth)acrylic acid, 3-sulfopropyl(meth)acrylic acid, 4-sulfobutyl(meth)acrylic acid and salts thereof. Most preferably, the automatic dishwashing composition of the present invention comprises < 1 wt% (preferably, < 0.1 wt%; more preferably, < 0.01 wt%; still more preferably, < 0.001 wt%; most preferably, less than detectable limit), based on dry weight of the automatic dishwashing composition, of polymer comprising structural units of 2-acrylamido-2-methylpropane sulfonic acid (AMPS) monomer.

[0039] Preferably, the automatic dishwashing composition of the present invention can be formulated in any typical form, e.g., as a tablet, powder, block, monodose, sachet, paste, liquid or gel. The automatic dishwashing compositions of the present invention are useful for cleaning ware, such as eating and cooking utensils, dishes, glassware (preferably, glassware) in an automatic dishwashing machine.

[0040] Preferably, the automatic dishwashing composition of the present invention are suitable for use under typical operating conditions. For example, when used in an automaticdishwashing machine, typical water temperatures during the washing process preferably are from 20 °C to 85 °C, preferably 30 °C to 70 °C. Typical concentrations for the automatic dishwashing composition as a percentage of total liquid in the dishwasher preferably are from 0.1 to 1 wt%, preferably from 0.2 to 0.7 wt%. With selection of an appropriate product form and addition time, the automatic dishwashing compositions of the present invention may be present in the pre wash, main wash, penultimate rinse, final rinse, or any combination of these cycles.

[0041] Preferably, the method of cleaning an article in an automatic dishwashing machine of the present invention, comprises: providing at least one article, wherein the at least one article includes glassware; providing an automatic dishwashing composition of the present invention; and applying the automatic dishwashing composition to the at least one article (preferably, in an automatic dishwasher). More preferably, the method of cleaning an article in an automatic dishwashing machine of the present invention, comprises: providing at least one article, wherein the at least one article includes glassware; providing an automatic dishwashing composition of the present invention; and applying the automatic dishwashing composition to the at least one article (preferably, in an automatic dishwasher) to provide a cleaned article.

[0042] Some embodiments of the present invention will now be described in detail in the following Examples.Dispersant Polymer DPI: Dispersant Polymer Composition

[0043] Dispersant polymer composition produced by known aqueous solution free radical polymerization techniques used herein had the composition and weight average molecular weight as noted in TABLE 1.T BLE 1Comparative Examples CF1-CF5 and Example Fl; Dishwashing detergents

[0044] Dishwashing compositions were prepared in each of Comparative ExamplesCF1-CF5 and Example Fl having the component formulations identified in TABLE 2.TABLE 2Procedure for preparing food soil

[0045] The STIWA food soil described in TABLE 3 was prepared by the following procedure. a) Bringing the water to a boil. b) Mixing in a paper cup the instant gravy, the benzoic acid and the starch; and then adding the mixture to the boiling water. c) Adding the milk and margarine to the product of (b). d) Letting the product of (c) cool down to approximately 40 °C, and then adding mixture to a kitchen mixer (Polytron). e) Combining in another paper cup, the egg yolk, the ketchup and the mustard and mixing with a spoon. f) Adding the product of (e) to the mixture of (d) in the blender with continuous stirring. g) Letting the product of (f) stir in the blender for 5 minutes. h) The freezing the product food soil mixture from (g). i) 50 g of the frozen slush is placed into the dishwasher at beginning of the main wash.T BLE 3Dishwashing Test Conditions

[0046] Machine: Miele SS-ADW, Model G1223SC Labor Prog 6. Wash at 65 °C - 20 min wash cycle, followed by two rinse cycles with a rinse water temperature of 65 °C and a final 30 minute drying step. After the drying cycle was complete, the dishwasher door was opened for 30 minutes to allow the steam to evaporate. Water: initial water supplied to the dishwasher had a target conductivity of 1,160 to 1,280 ps / cm. Food soil: 50 g of the composition noted in TABLE 3 was introduced to the wash liquor frozen in a cup at the beginning of the wash cycle. The test detergents were also charged to the dishwasher at the beginning of the wash cycle. The test detergents were each dosed at 15.3 g per wash (based on solids). The number of wash cycles used in this experiment to generate filming and spotting was 15.Filming Evaluation

[0047] After each of 15 wash cycles under the above dishwashing test conditions, the glass tumblers (Schott Zwiesel Tritan® longdrink glasses) were dried in open air. After drying, filming ratings were determined by trained evaluators by observations of glass tumblers in a light box with controlled illumination from below rated for filming according to ASTM method ranging from 1 (no fdm) to 5 (heavily filmed). The dishwashing composition prepared according to Example Fl was observed to perform comparably to the HEDP containing formulation of Comparative Example CF1. The dishwashing compositions prepared according to Comparative Examples CF2 and CF4-CF5 were all observed as fails, resulting in heavily filmed glassware. The dishwashing composition prepared according to Comparative Example CF3 resulted in distinct yellowish film on the glassware. A yellow tint to film is considered to be more discernible to end use customers of automatic dishwashing compositions. Hence, this composition was observed as a fail.

Claims

We claim:

1. An automatic dishwashing composition, comprising:(a) a builder;(b) a nonionic surfactant;(c) a dispersant polymer; and(d) 1,2,4-trihydroxybenzene (salt); and optionally, (e) a filler.

2. The automatic dishwashing composition of claim 1 , wherein the dispersant polymer comprises < 1 wt%, based on weight of the dispersant polymer, of structural units of sulfonated monomer.

3. The automatic dishwashing composition of claim 2, wherein the dispersant polymer comprises:(i) 60 to 98 wt%, based on solids weight of the dispersant polymer, of structural units of formula Iwherein each R1is independently selected from a hydrogen and a -CH3 group; and(ii) 2 to 40 wt%, based on solids weight of the dispersant polymer, of structural units of formula IIwherein each R2is independently selected from a -C1-4 alkyl group and wherein each R3is independently selected from a hydrogen and a methyl group; and wherein the dispersant polymer has a weight average molecular weight of 4,000 to 50,000 Daltons.

4. The automatic dishwashing composition of claim 3, wherein the dispersant polymer comprises:(i) 60 to 80 wt%, based on solids weight of the dispersant polymer, of structural units of formula I; wherein each R1is independently selected from a hydrogen and a -CH3 group; and(ii) 20 to 40 wt%, based on solids weight of the dispersant polymer, of structural units of formula II; wherein each R2is independently selected from a -C1-4 alkyl group and wherein each R3is independently selected from a hydrogen and a methyl group.

5. The automatic dishwashing composition of claim 4, wherein the automatic dishwashing composition contains < 0.1 wt%, based on the dry weight of the automatic dishwashing composition, of phosphate and phosphonate, measured as elemental phosphorus.

6. The automatic dishwashing composition of claim 5, wherein the builder includes a mixture of at least one carbonate and at least one citrate; and wherein the automatic dishwashing composition contains 0 wt%, based on the dry weight of the automatic dishwashing composition, of builders selected from the group consisting of nitrilotriacetic acid; ethylenediaminetetraacetic acid; diethylenetriaminepentaacetic acid; glycine-N,N-diacetic acid; methyl glycine-N,N-diacetic acid; 2-hydroxyethyliminodiacetic acid; glutamic acid-N,N -diacetic acid; 3-hydroxy-2,2’-iminodissuccinate;S,S-ethylenediaminedisuccinate aspartic acid-diacetic acid; N,N’ -ethylene diamine disuccinic acid; iminodisuccinic acid; aspartic acid; aspartic acid-N,N-diacetic acid; beta-alaninediacetic acid; polyaspartic acid; salts thereof and mixtures thereof.

7. The automatic dishwashing composition of claim 6, further comprising an additive, wherein the additive is a mixture of a bleaching agent, a bleach activator and a filler.

8. The automatic dishwashing composition of claim 7, comprising:(a) 50 to 60 wt%, based on dry weight of the automatic dishwashing composition, of the builder;(b) 4 to 8 wt%, based on dry weight of the automatic dishwashing composition, of the nonionic surfactant; wherein the nonionic surfactant comprises a mixture of nonionic alcohol alkoxylate surfactants;(c) 3 to 6 wt%, based on dry weight of the automatic dishwashing composition, of the dispersant polymer; wherein R1is a hydrogen in at least 98 mol% of the structural units of formula I; and wherein R2is an ethyl group in at least 98 mol% of the structural units of formula II and wherein R3is a hydrogen in at least 98 mol% of the structural units of formula II;(d) 5 to 10 wt%, based on dry weight of the automatic dishwashing composition, of the 1,2,4-trihydroxybenzene (salt);(e) 2 to 10 wt%, based on the dry weight of the automatic dishwashing composition, of the filler; wherein the filler is sodium sulfate;(f) 5 to 20 wt%, based on dry weight of the automatic dishwashing composition, of the bleaching agent, wherein the bleaching agent is selected from the group consisting of sodium percarbonate and sodium perborate;(g) 2.5 to 7.5 wt%, based on the dry weight of the automatic dishwashing composition, of the bleach activator; wherein the bleach activator is tetraacetylethylenedi ami ne.

9. A method of cleaning an article in an automatic dishwashing machine, comprising: providing at least one article, wherein the at least one article includes glassware; providing an automatic dishwashing composition according to claim 1 ; and, applying the automatic dishwashing composition to the at least one article.

10. The method of claim 9, wherein the automatic dishwashing comprisition is according to claim 8.

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