EP0163331A1
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EP
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Granular detergent-bleaching compositions
Assignee: Procter and Gamble Co
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Filing: 1985-04-22
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Granted: —
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Expires: 2005-04-22
Abstract
Abstract This invention relates to granular detergent-bleaching compositions that provide effective and efficient bleaching of textiles over a wide range of bleach solution temperatures. The bleaching compositions within the invention contain peroxygen bleaches capable of yielding hydrogen peroxide in aqueous solutions and specific bleach activators comprising at least about 10% capable of providing C 10 acylperox- yacids, at molar ratios of hydrogen peroxide to bleach activator of bove about 1.5. In another embodiment the invention relates to preferred mixtures of bleach activators.
Inventors
- 👤 Michael Eugene Burns
- 👤 Lawrence Allen Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 16:00
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/3902; C11D3/3905; C11D3/3907
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
134 words
A granular detergent-bleaching composition comprising: (a) a peroxygen bleaching compound capable of yielding hydrogen peroxide in an aqueous solution; (b) from about 0.1% to about 40% of a bleach activator having the general formula: wherein R is an alkyl group containing 9 carbon atoms in at least about 10% of the activator and the remainder of the R groups contain from about 7 to about 10 carbon atoms, and L is a leaving group, the conjugate acid of which has a pK a in the range of from about 6 to about 13; (c) from about 1% to about 50% of a detergent surfactant; and (d) from 0% to about 70% of a detergent builder, wherein the molar ratio of hydrogen peroxide yielded by (a) to bleach activator (b) is greater than about 1.
Claim 2
Dependent Claim
134 words
A granular detergent-bleaching composition comprising: (a) a peroxygen bleaching compound capable of yielding hydrogen peroxide in an aqueous solution; (b) from about 0.1% to about 40% of a bleach activator having the general formula: wherein R is an alkyl group containing 9 carbon atoms in at least about 10% of the activator and the remainder of the R groups contain from about 7 to about 10 carbon atoms, and L is a leaving group, the conjugate acid of which has a pK a in the range of from about 6 to about 13; (c) from about 1% to about 50% of a detergent surfactant; and (d) from 0% to about 70% of a detergent builder, wherein the molar ratio of hydrogen peroxide yielded by (a) to bleach activator (b) is greater than about 1.
Claim 3
Dependent Claim
24 words
The composition of Claim 1 wherein the molar ratio of hydrogen peroxide yielded by (a) to bleach activator (b) is at least about 1.5.
Claim 4
Dependent Claim
36 words
The composition of Claim 2 wherein the peroxygen bleaching compound is selected from the group consisting of sodium perborate monohydrate, sodium perborate tetrahydrate, sodium carbonate peroxyhydrate, sodium pyrophosphate peroxyhydrate, urea peroxyhydrate, sodium peroxide and mixtures thereof.
Claim 5
Dependent Claim
14 words
The composition of Claim 3 wherein the peroxygen bleaching compound is sodium perborate monohydrate.
Claim 6
Dependent Claim
30 words
The composition of Claim 2 wherein L is a leaving group, the conjugate acid of which has a pK a in the range of from about 7 to about 11.
Claim 7
Dependent Claim
30 words
The composition of Claim 5 wherein L is a leaving group, the conjugate acid of which has a pK a in the range of from about 8 to about 11.
Claim 8
Dependent Claim
56 words
The composition of Claim 2 wherein L is selected from the group consisting of: and mixtures thereof wherein R is as defined in Claim 1, R 2 is an alkyl chain containing from about 1 to about 8 carbon atoms, R 3 is H or R 2 , and Y is H or a solubilizing group.
Claim 9
Dependent Claim
73 words
The composition of Claim 7 wherein Y is selected from the group consisting of: -COO - M + , (-N + R 3 4 )X - and -NR 2 4 →O and mixtures thereof wherein R 4 is an alkyl chain containing from about 1 to about 4 carbon atoms, M is a cation which provides solubility to the bleach activator and X is an anion which provides solubility to the bleach activator.
Claim 10
Dependent Claim
41 words
The composition of Claim 8 wherein Y is selected from the group consisting of -SO 3 - M + , -COO - M + and mixtures thereof wherein M is selected from the group consisting of sodium, potassium and mixtures thereof.
Claim 11
Dependent Claim
50 words
The composition of Claim 7 wherein L is selected from the group consisting of: and mixtures thereof wherein R is an alkyl chain containing from about 1 to about 8 carbon atoms, Y is -SO 3 - M + or -COO - M + wherein M is sodium or potassium.
Claim 12
Dependent Claim
17 words
The composition of Claim 10 wherein L has the general formula: wherein M is sodium or potassium.
Claim 13
Dependent Claim
75 words
The composition of Claim 1 containing (a) from about 1% to about 60% peroxygen bleaching compound; (b) from about .5% to about 20% bleach activator and at least about 20% of the R groups contain 9 carbon atoms; (c) from about 5% to about 30% detergent surfactant; (d) from about 10% to about 60% detergent builder; and a molar ratio of hydrogen peroxide yielded by (a) to bleach activator (b) of greater than about 2.
Claim 14
Dependent Claim
76 words
The composition of Claim 12 containing (a) from about 1% to about 20% peroxygen bleaching compound; (b) from about 1% to about 5% bleach activator and at least about 20% of the R groups contain 9 carbon atoms; (c) from about 10% to about 25% detergent surfactant; (d) from about 20% to about 60% detergent builder; and a molar ratio of hydrogen peroxide yielded by (a) to bleach activator (b) of from-about 2 to about 10.
Claim 15
Dependent Claim
94 words
A bleach activator composition consisting essentially of a mixture of bleach activators having the general formula wherein R is an alkyl group containing from about 8 to about 10 carbon atoms, wherein there are at least two different R groups, none of which is in more than about 70% of said activator, and at least about 10% of said activator containing an R group containing 9 carbon atoms; and wherein L is a leaving group, the conjugate acid of which has a pK a in the range of from about 6 to about 13.
Claim 16
Dependent Claim
94 words
A bleach activator composition consisting essentially of a mixture of bleach activators having the general formula wherein R is an alkyl group containing from about 8 to about 10 carbon atoms, wherein there are at least two different R groups, none of which is in more than about 70% of said activator, and at least about 10% of said activator containing an R group containing 9 carbon atoms; and wherein L is a leaving group, the conjugate acid of which has a pK a in the range of from about 6 to about 13.
Claim 17
Dependent Claim
67 words
The composition of Claim 14 wherein L is selected from the group consistinq of: and mixtures thereof wherein R is a linear alkyl and in at least about 20% of said bleach activators contains 9 carbon atoms, R 2 is an alkyl chain containing from about 1 to about 8 carbon atoms, R is H or R 2 , and Y is H or a solubilizing group.
Claim 18
Dependent Claim
52 words
The composition of Claim 13 wherein L is selected from the group consisting of: , and mixtures thereof wherein R 2 is an alkyl chain containing from about 1 to about 8 carbon atoms, Y is -SO 3 - M + or -COO - M + wherein M is sodium or potassium.
Claim 19
Dependent Claim
22 words
The composition of Claim 15 wherein R is a mixture of about 60% C 7 and about 40% C 9 alkyl chains.
Claim 20
Dependent Claim
17 words
The composition of Claim 15 wherein L has the general formula: wherein M is sodium or potassium.
References Cited (Backward Citations)
EP0098021A2
Cited
EP0118304A2
Cited
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