Cleaning formulations for machine dishwashing comprising hydrophilically modified polycarboxylates
AssigneeBASF Akiengesellschaft
InventorsTanja Seebeck, Jürgen Tropsch, Lars Kissau
Life of this patent
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Abstract
A phosphate-free detergent formulation for machine dishwashing is provided. The formulation contains as main components: copolymers of a monoethylenically unsaturated monocarboxylic acid and/or of a salt thereof, and an alkoxylated, monoethylenically unsaturated monomer, wherein the copolymer has a mean molecular weight Mw of from 30 000 to 500 000 g/mol and a K value of from 40 to 150, measured at pH 7 in 1% by weight aqueous solution at 25° C.; complexing agents; low-foaming nonionic surfactants; bleaches and, optionally, bleach activators; further builders; enzymes; and one or more further additives.
Claims92
1-4. (canceled)
A phosphate-free detergent formulation comprising:
- a) from 1 to 20% by weight of at least one copolymer,
- b) from 1 to 50% by weight of at least one complexing agent selected from the group consisting of nitrilotriacetic acid, ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, hydroxyethylethylenediaminetriacetic acid and glycine-N,N-diacetic acid and their derivatives, glutamic acid N,N-diacetic acid, iminodisuccinate, hydroxyiminodisuccinate, S,S-ethylenediaminedisuccinate, aspartic acid diacetic acid and salts of the aforementioned substances,
- c) from 1 to 15% by weight of at least one low-foaming nonionic surfactant,
- d) from 0.1 to 30% by weight of at least one bleach and, optionally, at least one bleach activator,
- e) from 0 to 60% by weight of at least one further builder,
- f) from 0 to 8% by weight of enzymes, and
- g) from 0 to 50% by weight of one or more further additives,
- wherein the sum of components a) to g) is 100% by weight.
A mixed powder or mixed granule comprising:
- a) from 30 to 95% by weight of at least one copolymer,
- b) from 5 to 70% by weight of complexing agents selected from the group consisting of nitrilotriacetic acid, ethylenediaminetetraacetic acid and glycine-N,N-diacetic acid derivatives, glutamic acid N,N-diacetic acid, iminodisuccinic acid, hydroxyiminodisuccinic acid, S,S-ethylenediaminedisuccinic acid and aspartic acid diacetic acid, and also the salts of the aforementioned acids, and
- c) from 0 to 20% by weight of a polyethylene glycol, of a nonionic surfactant or of a mixture thereof.
A dishwasher detergent composition comprising an amino acid-based biodegradable builder selected from the group consisting of methyl-glycine-diacetic acid and salts thereof, and glutamic-N—N-diacetic acid and salts thereof, at least one sulfonated polymer, and between 1 to 30 wt. % of a bleach composition, wherein said composition is adapted, in use, to produce a pH-neutral washing liquor.
A dishwasher detergent composition provided without phosphorous-containing compound(s), wherein the composition comprises an amino acid-based biodegradable builder selected from the group consisting of methyl-glycine-diacetic acid and salts thereof, and glutamic-N—N-diacetic acid and salts thereof, a sulfonated polymer, and between 1 to 30 wt. % of a bleach composition.
A dishwasher detergent composition comprising an amino acid-based biodegradable builder selected from the group consisting of methyl-glycine-diacetic acid and salts thereof, and glutamic-N—N-diacetic acid and salts thereof, a sulfonated polymer, and a bleach, wherein the bleach is selected from at least one of:
- an inorganic perhydrate;
- an organic peracid;
- and/or salts thereof.
A dishwasher detergent composition comprising a strong biodegradable builder and at least one sulfonated polymer, wherein said composition is adapted, in use, to produce a pH-neutral washing liquor.
A dishwasher detergent composition provided without phosphorous-containing compound(s), wherein the composition comprises a strong biodegradable builder and a sulfonated polymer.
A dishwasher detergent composition comprising a strong biodegradable builder and a bleach, wherein the bleach is selected from at least one of:
- an inorganic perhydrate;
- an organic peracid;
- and/or salts thereof.
A dishwasher detergent composition comprising a strong biodegradable builder.
A dishwasher detergent composition comprising an amino acid-based builder selected from the group consisting of methyl glycine diacetic acid and salts thereof, and glutamic acid N,N-diacetic acid and salts thereof, at least one sulfonated polymer, and between 0 to 30 wt. % of a bleach, wherein said composition is adapted, in use, to produce a washing liquor.
A dishwasher detergent composition provided without phosphorous-containing compound(s), wherein the composition comprises an amino acid-based builder selected from the group consisting of methyl glycine diacetic acid and salts thereof, and glutamic acid N,N-diacetic acid and salts thereof, a sulfonated polymer, and between 0 to 30 wt. % of a bleach.
A dishwasher detergent composition comprising an amino acid-based builder selected from the group consisting of methyl glycine diacetic acid and salts thereof, and glutamic acid N,N-diacetic acid and salts thereof, a sulfonated polymer, and a bleach, wherein the bleach is selected from at least one of:
- alkali metal perborates and hydrates thereof;
- alkali metal percarbonates;
- sodium perborates and hydrates thereof;
- sodium percarbonates and hydrates thereof;
- persulfate;
- and/or an organic peracid.
A dishwasher detergent composition comprising a builder and at least one sulfonated polymer, wherein said composition is adapted, in use, to produce a washing liquor.
A dishwasher detergent composition provided without phosphorous-containing compound(s), wherein the composition comprises a builder and a sulfonated polymer.
A dishwasher detergent composition comprising a builder and a bleach, wherein the bleach is selected from at least one of:
- alkali metal perborates and hydrates thereof;
- alkali metal percarbonates;
- sodium perborates and hydrates thereof;
- sodium percarbonates and hydrates thereof;
- persulfate;
- and/or an organic peracid.
A dishwasher detergent composition comprising a builder.
Dependencies are inferred from the claim text.