US4728455A
Expired / Lapsed
US
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Detergent bleach compositions, bleaching agents and bleach activators
Assignee: Lever Brothers Co
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Filing: 1986-03-07
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Granted: 1988-03-01
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Expires: 2006-03-07
Abstract
Abstract Bleaching agent compositions and detergent bleach formulations containing them comprise effective amounts of (a) a peroxide compound having a bleaching action; and (b) a catalyst for the bleaching action of the peroxide compound, said catalyst comprising a water-soluble complex of manganese (III) with a multidentate ligand. The amount of complexing agent in the catalyst that supplies the multidentate ligand to form the complex is such that the molar ratio of complexing agent to manganese is at least about 1:1, preferably 10:1 or greater.
Inventors
- 👤 Mark E. Rerek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:33
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/3902; C11D3/3905; C11D3/3932
Claims Analysis
Total Claims: 46
Claim 1
Independent Claim
173 words
A detergent bleach composition comprising: (a) from about 2% to about 50% by weight of the composition of a surface active agent selected from the group consisting of nonionic, anionic, cationic, and zwitterionic detergents and mixtures thereof; (b) from about 1% to about 85% by weight of the composition of a detergent builder; and (c) a bleaching agent containing (i) from about 5% to about 30% by weight of the composition of a peroxide compound having a bleaching action; and (ii) a catalyst for the bleaching action of the peroxide compound, comprising a complex of manganese (III) and a multidentate ligand supplied by a complexing agent, said agent selected from the group consisting of hydroxy carboxylic acids containing at least 5 carbon atoms and the salts, lactones, acid esters, ethers an boric esters thereof, and wherein the molar ratio of complexing agent to manganese is at least about 1:1, the catalyst being present in an amount such that the manganese content is about 0.005% to about 0.2% of the weight of the composition.
Claim 2
Dependent Claim
173 words
A detergent bleach composition comprising: (a) from about 2% to about 50% by weight of the composition of a surface active agent selected from the group consisting of nonionic, anionic, cationic, and zwitterionic detergents and mixtures thereof; (b) from about 1% to about 85% by weight of the composition of a detergent builder; and (c) a bleaching agent containing (i) from about 5% to about 30% by weight of the composition of a peroxide compound having a bleaching action; and (ii) a catalyst for the bleaching action of the peroxide compound, comprising a complex of manganese (III) and a multidentate ligand supplied by a complexing agent, said agent selected from the group consisting of hydroxy carboxylic acids containing at least 5 carbon atoms and the salts, lactones, acid esters, ethers an boric esters thereof, and wherein the molar ratio of complexing agent to manganese is at least about 1:1, the catalyst being present in an amount such that the manganese content is about 0.005% to about 0.2% of the weight of the composition.
Claim 3
Dependent Claim
44 words
A composition according to claim 1 wherein the peroxide compound is present in about 15% to about 25% by weight and the catalyst is present in an amount such that the manganese content is about 0.025% to about 0.125% by weight of the composition.
Claim 4
Dependent Claim
28 words
A composition according to claim 1 wherein the peroxide compound is selected from the group consisting of water-soluble inorganic persalts which yield hydrogen peroxide when dissolved in water.
Claim 5
Dependent Claim
21 words
A composition according to claim 3 wherein the inorganic persalt is an alkali metal perborate, percarbonate, perphosphate, persilicate or mixture thereof.
Claim 6
Dependent Claim
25 words
A composition according to claim 1 wherein the hydroxycarboxylic acid possesses a hydroxyl group on each of the carbon atoms other than the carboxyl carbon.
Claim 7
Dependent Claim
45 words
A composition according to claim 1 wherein the hydroxycarboxylic acid is a straight-chain acid having an aldehyde or carboxylate group on the carbon atom farthest from the carboxyl carbon and each of the remaining carbon atoms other than the carboxyl carbon has a hydroxyl group.
Claim 8
Dependent Claim
29 words
A composition according to claim 1 wherein the hydroxycarboxylic acid is a hexonic hydroxyacid selected from the group consisting of gluconic acid, gulonic acid, idonic acid and mannoic acid.
Claim 9
Dependent Claim
27 words
A composition according to claim 1 wherein the hydroxycarboxylic acid is a uronic acid selected from the group consisting of glucouronic acid, galactouronic acid, and mannuronic acid.
Claim 10
Dependent Claim
25 words
A composition according to claim 1 wherein the hydroxycarboxylic acid is a heptonic hydroxyacid selected from the group consisting of glucoheptonic acid and its stereoisomers.
Claim 11
Dependent Claim
24 words
A composition according to claim 1 wherein the hydroxycarboxylic acid is a sugar selected from the group consisting of saccharic acid and isosaccharic acid.
Claim 12
Dependent Claim
13 words
A composition according to claim 1 wherein the hydroxycarboxylic acid is quinic acid.
Claim 13
Dependent Claim
158 words
An aqueous wash medium comprising: (a) from about 0.04% to about 2% by weight of the composition of a surface active agent selected from nonionic, anionic, cationic, and zwitterionic detergents; (b) from about 0.02% to about 3.4% by weight of the composition of a detergent builder; (c) from about 0.1% to about 1.2% by weight of the composition of a peroxide compound having a bleaching action; and (d) a catalyst for the bleaching action of the peroxide compound, comprising manganese (III) or a precursor thereof, and a multidentate ligand-supplying complexing agent, said agent selected from the group consisting of hydroxy carboxylic acids containing at least 5 carbon atoms and the salts, lactones, acid esters, ethers and boric esters thereof, and wherein the molar ratio of complexing agent to manganese is at least about 1:1, the catalyst being present in an amount such that the manganese content is about 0.00006% to about 0.004% of the weight of the composition.
Claim 14
Dependent Claim
158 words
An aqueous wash medium comprising: (a) from about 0.04% to about 2% by weight of the composition of a surface active agent selected from nonionic, anionic, cationic, and zwitterionic detergents; (b) from about 0.02% to about 3.4% by weight of the composition of a detergent builder; (c) from about 0.1% to about 1.2% by weight of the composition of a peroxide compound having a bleaching action; and (d) a catalyst for the bleaching action of the peroxide compound, comprising manganese (III) or a precursor thereof, and a multidentate ligand-supplying complexing agent, said agent selected from the group consisting of hydroxy carboxylic acids containing at least 5 carbon atoms and the salts, lactones, acid esters, ethers and boric esters thereof, and wherein the molar ratio of complexing agent to manganese is at least about 1:1, the catalyst being present in an amount such that the manganese content is about 0.00006% to about 0.004% of the weight of the composition.
Claim 15
Dependent Claim
42 words
An aqueous medium according to claim 12 wherein the peroxide compound is present in about 0.6% to about 1.0% by weight and the catalyst is present in an amount such that the manganese content is about 0.00032% to about 0.005% by weight.
Claim 16
Dependent Claim
30 words
An aqueous medium according to claim 12 wherein the peroxide compound is selected from the group consisting of hydrogen peroxide and inorganic persalts which when in water yield hydrogen peroxide.
Claim 17
Dependent Claim
20 words
An aqueous medium according to claim 14 wherein the inorganic persalt is an alkali metal perborate, percarbonate, perphosphate, or persilicate.
Claim 18
Dependent Claim
26 words
An aqueous medium according to claim 12 wherein the hydroxycarboxylic acid posses a hydroxyl group on each of the carbon atoms other than the carboxyl carbon.
Claim 19
Dependent Claim
46 words
An aqueous medium according to claim 12 wherein the hydroxycarboxylic acid is a straight-chain acid having an aldehyde or carboxylate group on the carbon atom farthest from the carboxyl carbon and each of the remaining carbon atoms other than the carboxyl carbon has a hydroxyl group.
Claim 20
Dependent Claim
30 words
An aqueous medium according to claim 12 wherein the hydroxycarboxylic acid is a hexonic hydroxyacid selected from the group consisting of gluconic acid, gulonic acid, idonic acid and mannoic acid.
Claim 21
Dependent Claim
28 words
An aqueous medium according to claim 12 wherein the hydroxycarboxylic acid is a uronic acid selected from the group consisting of glucouronic acid, galactouronic acid, and mannuronic acid.
Claim 22
Dependent Claim
26 words
An aqueous medium according to claim 12 wherein the hydroxycarboxylic acid is a heptonic hydroxyacid selected from the group consisting of glucoheptonic acid and its stereoisomers.
Claim 23
Dependent Claim
25 words
An aqueous medium according to claim 12 wherein the hydroxycarboxylic acid is a sugar selected from the group consisting of saccharic acid and isosaccharic acid.
Claim 24
Dependent Claim
95 words
A bleaching agent composition comprising: (a) a peroxide compound present in an amount effective to impart a bleaching action; and (b) a catalyst present in an effective amount to promote the bleaching action of the peroxide compound, comprising a complex of manganese (III) and a multidentate ligand supplied by a complexing agent, said agent selected from the group consisting of hydroxy carboxylic acids containing at least 5 carbon atoms and the salts, lactones, acid esters, ethers and boric esters thereof, and wherein the molar ratio of complexing agent to manganese is at least about 1:1.
Claim 25
Dependent Claim
95 words
A bleaching agent composition comprising: (a) a peroxide compound present in an amount effective to impart a bleaching action; and (b) a catalyst present in an effective amount to promote the bleaching action of the peroxide compound, comprising a complex of manganese (III) and a multidentate ligand supplied by a complexing agent, said agent selected from the group consisting of hydroxy carboxylic acids containing at least 5 carbon atoms and the salts, lactones, acid esters, ethers and boric esters thereof, and wherein the molar ratio of complexing agent to manganese is at least about 1:1.
Claim 26
Dependent Claim
26 words
A composition according to claim 22 wherein the peroxide compound is selected from the group consisting of inorganic persalts which when in water yield hydrogen peroxide.
Claim 27
Dependent Claim
21 words
A composition according to claim 23 wherein the inorganic persalt is alkali metal perborate, percarbonate, perphosphate or persilicate or mixture thereof.
Claim 28
Dependent Claim
25 words
A composition according to claim 22 wherein the hydroxycarboxylic acid possesses a hydroxyl group on each of the carbon atoms other than the carboxyl carbon.
Claim 29
Dependent Claim
45 words
A composition according to claim 22 wherein the hydroxycarboxylic acid is a straight-chain acid having an aldehyde or carboxylate group on the carbon atom farthest from the carboxyl carbon and each of the remaining carbon atoms other than the carboxyl carbon has a hydroxyl group.
Claim 30
Dependent Claim
29 words
A composition according to claim 22 wherein the hydroxycarboxylic acid is a hexonic hydroxyacid selected from the group consisting of gluconic acid, gulonic acid, idonic acid and mannoic acid.
Claim 31
Dependent Claim
27 words
A composition according to claim 22 wherein the hydroxycarboxylic acid is a uronic acid selected from the group consisting of glucouronic acid, galactouronic acid, and mannuronic acid.
Claim 32
Dependent Claim
24 words
A composition to claim 22 wherein the hydroxycarboxylic acid is a heptonic hydroxyacid selected from the group consisting of glucoheptonic acid and its stereoisomers.
Claim 33
Dependent Claim
24 words
A composition according to claim 22 wherein the hydroxycarboxylic acid is a sugar selected from the group consisting of saccharic acid and isosaccharic acid.
Claim 34
Dependent Claim
78 words
A catalyst present in an effective amount to promote the bleaching action of peroxide compounds in a detergent bleach composition, comprising a complex of manganese (III) and a multidentate ligand supplied by a complexing agent, said agent selected from the group consisting of hydroxy carboxylic acids containing at least 5 carbon atoms and the salts, lactones, acid esters, ethers and boric esters thereof, and wherein the molar ratio of complexing agent to manganese is at least about 1:1.
Claim 35
Dependent Claim
78 words
A catalyst present in an effective amount to promote the bleaching action of peroxide compounds in a detergent bleach composition, comprising a complex of manganese (III) and a multidentate ligand supplied by a complexing agent, said agent selected from the group consisting of hydroxy carboxylic acids containing at least 5 carbon atoms and the salts, lactones, acid esters, ethers and boric esters thereof, and wherein the molar ratio of complexing agent to manganese is at least about 1:1.
Claim 36
Dependent Claim
25 words
A catalyst according to claim 31 wherein the hydroxycarboxylic acid possesses a hydroxyl group on each of the carbon atoms other than the carboxyl carbon.
Claim 37
Dependent Claim
45 words
A catalyst according to claim 31 wherein the hydroxycarboxylic acid is a straight-chain acid having an aldehyde or carboxylate group on the carbon atom farthest from the carboxyl carbon and each of the remaining carbon atoms other than the carboxyl carbon has a hydroxyl group.
Claim 38
Dependent Claim
29 words
A catalyst according to claim 31 wherein the hydroxycarboxylic acid is a hexonic hydroxyacid selected from the group consisting of glucouronic acid, gulonic acid, idonic acid and mannonic acid.
Claim 39
Dependent Claim
27 words
A catalyst according to claim 31 wherein the hydroxycarboxylic acid is a uronic acid selected from the group consisting of glucoronic acid, galactouronic acid, and mannuronic acid.
Claim 40
Dependent Claim
25 words
A catalyst according to claim 31 wherein the hydroxycarboxylic acid is a heptonic hydroxyacid selected from the group consisting of glucoheptonic acid and its stereoisomers.
Claim 41
Dependent Claim
24 words
A catalyst according to claim 31 wherein the hydroxycarboxylic acid is a sugar selected from a group consisting of saccharic acid and isosaccharic acid.
Claim 42
Dependent Claim
85 words
A method for preparing the catalyst of claim 31, comprising: (a) preparing an aqueous solution of (i) a source of manganese (III) and (ii) a multidentate ligand-supplying complexing agent wherein the molar ratio of the complexing agent to manganese is at least about 1:1; (b) adjusting the solution prepared in step (a) to a pH of between about 9 and about 12; and (c) agitating the solution obtaining in step (b) in air to form a water-soluble complex of manganese (III) with the multidentate ligand.
Claim 43
Dependent Claim
17 words
A method according to claim 38 wherein the source of manganese (III) is a manganese (II) salt.
Claim 44
Dependent Claim
38 words
A method according to claim 39 wherein: the manganese (II) salt is manganese (II) sulfate; the complexing agent is sodium gluconate; and the pH is adjusted in step (b) to a pH of about 10 using sodium hydroxide.
Claim 45
Dependent Claim
22 words
A method according to claim 39 wherein the molar ratio of the complexing agent to manganese is between about 10:1 and 100:1.
Claim 46
Dependent Claim
18 words
A method according to claim 39 wherein, the water is removed from the complex formed in step (c).
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-03-01 | 1991-08-31 | 1992-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-01 | 1995-08-31 | 1996-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-01 | 1999-08-31 | 2000-03-01 | $7700.00 | Window Closed / Lapsed |