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US 4,049,467 AGranted
Method and compositions for removal of hard surface manganese ion-derived discolorations
AssigneeLever Brothers Company
InventorFred Kurt Rubin
Life of this patent
Estimating the term…
Abstract
Manganese ion-derived discolorations are removed from hard surfaces by the use of either dihydroxy maleic acid, dihydroxy tartaric acid, their alkali metal salts, or mixtures thereof. The non-toxicity and non-corrosivity of the disclosed compounds make them particularly suitable for household applications.
Claims26
A method for removing manganese ion-derived discolorations from hard surfaces comprising:
- treating said discolored hard surfaces, in the presence of water, with a sufficient amount to remove said discoloration of a hydroxy compound selected from the group consisting of dihydroxy maleic acid, dihydroxy tartaric acid, the alkali metal salts of said acids, and mixtures thereof.
A method for removing manganese ion-derived discolorations from hard surfaces comprising:
- treating said discolored hard surfaces, in the presence of water, with a sufficient amount to remove said discoloration of a hard surface stain removing agent including a hydroxy compound selected from the group consisting of dihydroxy maleic acid, dihydroxy tartaric acid, the alkali metal salts of said acids, and mixtures thereof.
A powdered hard surface stain removing composition for the removal of manganese ion-derived discolorations from hard surfaces consisting of:
- a. a hydroxy compound selected from the group consisting of dihydroxy maleic acid, dihydroxy tartaric acid, the alkali metal salts of said acids and mixtures thereof;
- and
- b. a filler selected from the group consisting of sodium sulfate, soda ash, sodium acetate and mixtures thereof;
- wherein said hydroxy compound is present in said composition in an amount sufficient to remove said manganese ion-derived discolorations from said hard surfaces when said hard surface is treated with said composition in the presence of water.
1 more element
A stain removing scouring powder composition for the removal of manganese ion-derived discolorations from hard surfaces consisting essentially of:
- a. a hydroxy compound selected from the group consisting of dihydroxy maleic acid, dihydroxy tartaric acid, the alkali metal salts of said acids and mixtures thereof;
- b. an abrasive selected from the group consisting of silica, ground quartz, ground marble, calcite, dolomite, pumice stone and mixtures thereof;
- c. a surfactant selected from the group consisting of alkylbenzenesulfonates, olefin sulfonates, hydroxyalkane sulfonates, alkane sulfonates and mixtures thereof wherein said surfactant is present at a level of about 0.5% to about 15%, and
- d. a builder selected from the group consisting of alkali metal orthophosphates, polyphosphates, sodium carbonate, citric acid, sodium citrate, carboxymethyloxysuccinate, carboxymethyloxytartronate and mixtures thereof;
- wherein said hydroxy compound is present in said composition in an amount sufficient to remove said manganese ion-derived discolorations from said hard surfaces when said hard surface is treated with said compositions in the presence of water.
2 more elements
A stain removing liquid scouring composition for the removal of manganese ion-derived discolorations from hard surfaces consisting essentially of:
- a. a hydroxy compound selected from the group consisting of a dihydroxytartaric acid, the alkali metal salts of said acid, dihydroxymaleic acid, and mixtures thereof.
- b. an abrasive selected from the group consisting of silica, ground quartz, calcite, dolomite, ground marble, pumice stone and mixtures thereof;
- c. a surfactant selected from the group consisting of alkyl sulfates, alkylbenzenesulfonates, ethoxylated alkylsulfonates, sulfonated ethoxylated alkylphenols, sulfated fatty esters of acids or alcohols, .alpha.-olefin sulfonates, alkyl sulfosuccinates, N-methyltaurides, alkyl monoethanolamides, glycerolamides, tris-(hydroxymethyl)-methylamides, amine oxides, sodium soaps, potassium soaps, lithium soaps, ammonium soaps and mixtures thereof wherein said surfactant is present at a level of about 0.5% to about 20%;
- d. a builder selected from the group consisting of alkali metal orthophosphates, polyphosphates, sodium carbonate, citric acid, sodium citrate, carboxymethyloxysuccinate, carboxymethyloxytartronate and mixtures thereof;
- wherein said hydroxy compound is present in said composition in an amount sufficient to remove said manganese ion-derived discolorations from said hard surfaces when said hard surface is treated with said composition.
2 more elements
A powdered hard surface stain removing composition consisting of:
- a. a hydroxy compound selected from the group consisting of dihydroxy maleic acid, dihydroxy tartaric acid, the alkali metal salts of said acids and mixtures thereof;
- b. a filler selected from the group consisting of sodium sulfate, soda ash, sodium acetate and mixtures thereof;
- and
- c. at least one ingredient selected from the group consisting of perfume and an optical brightener
- wherein said hydroxy compound is present in said composition in an amount sufficient to remove said manganese ion-derived discolorations from said hard surfaces when said hard surface is treated with said composition in the presence of water.
2 more elements
A stain removing liquid scouring composition for the removal of manganese ion-derived discolorations from hard surfaces consisting essentially of:
- a. a hydroxy compound selected from the group consisting of dihydroxymaleic acid, the alkali metal salts of said acid and mixtures thereof;
- b. an abrasive selected from the group consisting of silica, ground quartz, calcite, dolomite, ground marble, pumice stone and mixtures thereof;
- c. a surfactant selected from the group consisting of alkyl sulfonates, alkylbenzenesulfonates, ethoxylated alkylsulfonates, sulfonated ethoxylated alkylphenols, sulfated fatty esters of acids or alcohols .alpha.-olefin sulfonates, alkyl sulfosuccinates N-methyltaurides, alkyl monoethanolamides, glycerolamides tris-(hydroxymethyl)-methylamides, amine oxides, sodium soaps, potassium soaps, lithium soaps and mixtures thereof, wherein said surfactant is present at a level of about 0.5% to less than about 15%;
- wherein said hydroxy compound is present in said composition in an amount sufficient to remove said manganese ion-derived discolorations from said hard surfaces when said hard surface is treated with said composition.
1 more element
Dependencies are inferred from the claim text.