EP0118304A2
Expired / Lapsed
EP
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Bleaching detergent compositions
Assignee: Procter and Gamble Co
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Filing: 1984-03-05
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Granted: —
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Expires: 2004-03-05
Abstract
Abstract This invention relates to bleaching detergent compositions that provide effective and efficient surface bleaching of textiles over a wide range of bleach detergent solution temperatures. Surface bleaching of textiles is bleaching wherein the bleaching mechanism takes place on the textile surface and, thereby, removes stains and/or soils. The bleaching compositions within the invention contain either a mixture of peroxygen bleaches capable of yielding hydrogen peroxide in aqueous solutions and specific bleach activators or the corresponding percarboxylic acids and either a sulfosuccinate, a nitrilotriacetate or mixtures thereof as a bleach promoter.
Inventors
- 👤 Mark Edward Cushman
- 👤 Lawrence Allen Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 20:12
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/3945; C11D3/3902; C11D3/3905; C11D3/3907
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
161 words
A bleaching detergent composition comprising: I. a bleaching system to give from 0.03% to 1.3% available oxygen in the composition, based upon the theoretical amount of percarboxylic acid, and being selected from: (a) a mixture of a peroxygen bleaching compound capable of yielding hydrogen peroxide in an aqueous solution; and a bleach activator having the general.formula: wherein R is an alkyl group containing from 5 to 18 carbon atoms wherein the longest linear alkyl chain extending from and including the carbonyl carbon contains from 6 to 10 carbon atoms and L is a leaving group, the conjugate acid of which has a pK a in the range of from 6 to 13; or (b) a percarboxylic acid having the general formula wherein R has the meaning given hereinbefore or mixtures thereof; II. from 1% to 60% of a detergent surfactant; and III. at least 1/4% of a bleach promoter selected from the group consisting of water-soluble sulfosuccinates, nitrilotriacetates and mixtures thereof.
Claim 2
Dependent Claim
161 words
A bleaching detergent composition comprising: I. a bleaching system to give from 0.03% to 1.3% available oxygen in the composition, based upon the theoretical amount of percarboxylic acid, and being selected from: (a) a mixture of a peroxygen bleaching compound capable of yielding hydrogen peroxide in an aqueous solution; and a bleach activator having the general.formula: wherein R is an alkyl group containing from 5 to 18 carbon atoms wherein the longest linear alkyl chain extending from and including the carbonyl carbon contains from 6 to 10 carbon atoms and L is a leaving group, the conjugate acid of which has a pK a in the range of from 6 to 13; or (b) a percarboxylic acid having the general formula wherein R has the meaning given hereinbefore or mixtures thereof; II. from 1% to 60% of a detergent surfactant; and III. at least 1/4% of a bleach promoter selected from the group consisting of water-soluble sulfosuccinates, nitrilotriacetates and mixtures thereof.
Claim 3
Dependent Claim
35 words
A composition according to claim 1 wherein said detergent surfactant tends to form a middle phase upon the dilution of the composition in water and there is from 1/2% to 10% of said bleach promoter.
Claim 4
Dependent Claim
26 words
A composition according to claim 2 wherein the bleach promoter is intimately mixed in the detergent surfactant and the cation is sodium, potassium or mixtures thereof.
Claim 5
Dependent Claim
36 words
A composition according to any one of claims 1-3 wherein the peroxygen bleaching compound is selected from sodium perborate monohydrate, sodium perborate tetrahydrate, sodium carbonate peroxyhydrate, sodium pyrophosphate peroxyhydrate, urea peroxyhydrate, sodium peroxide and mixtures thereof.
Claim 6
Dependent Claim
37 words
A composition according to any one of claims 1-4 wherein L is a leaving group, the conjugate acid of which has a pK a in the range of from 7 to 11 preferably from 8 to 11.
Claim 7
Dependent Claim
51 words
A composition according to any one of claims 1-5 wherein L is selected from: wherein R is as defined in claim 1, R 2 is an alkyl chain containing from 1 to 8 carbon atoms, R 3 is H or R 2 , and Y is H or a solubilizing group.
Claim 8
Dependent Claim
51 words
A composition according to claim 6 wherein R is an alkyl group containing from 5 to 12 carbon atoms wherein the longest linear alkyl chain extending from and including the carbonyl carbon contains from 6 to 10 carbon atoms and L has the general formula wherein M is sodium or potassium.
References Cited (Backward Citations)
No citation records indexed.
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