Patent US613239A successfully refreshed from Google Patents.
Patent EP0076166A2 successfully refreshed from Google Patents.
EP0076166A2
Expired / Lapsed
EP
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Bleach composition
Assignee: Solvay Interox Ltd
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Filing: 1982-09-29
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Granted: —
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Expires: 2002-09-29
Abstract
Abstract In one aspect the invention relates to aqueous detergent compositions and in a second aspect to bleach compositions both containing hydrogen peroxide and both particularised or modified by the presence of isopropyl alcohol as part of the stabiliser system therefor. In a third aspect the invention relates to premixes containing 20 to 35 % hydrogen peroxide, water, aliphatic alcohol, phosphonate and preferably a polyhydroxycarboxylate, which can be augmented by the other components of the detergent/bleach compositions and if necessary diluted without any risk of passing through hazardous intermediate compositions inadvertantly.
Inventors
- 👤 Eileen Smith
- 👤 Doreen Ann Timperley
- 👤 Dorothy Margaret Titchener
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 22:00
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/3902; C11D3/3937; C11D3/394; C11D3/3947
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
96 words
A stabilised aqueous built liquid detergent composition comprising at least 4 % of an anionic sulphate or sulphonate surfactant and/or of a non-ionic ethoxylate surfactant, at least 5 % of a builder selected from alkali metal polyphosphates and carboxylic complexing builders at least 2 % hydrogen peroxide, sufficient alkali metal aryl sulphonate hydrotrope to maintain the composition in a single phase, either by itself or in conjunction with other components, and a stabilising amount of a combination comprising isopropanol and an aminomethylene phosphonate or hydroxyalkyl diphosphonate and optionally a polyhydroxy aliphatic carboxylate, %'s being by weight.
Claim 2
Dependent Claim
96 words
A stabilised aqueous built liquid detergent composition comprising at least 4 % of an anionic sulphate or sulphonate surfactant and/or of a non-ionic ethoxylate surfactant, at least 5 % of a builder selected from alkali metal polyphosphates and carboxylic complexing builders at least 2 % hydrogen peroxide, sufficient alkali metal aryl sulphonate hydrotrope to maintain the composition in a single phase, either by itself or in conjunction with other components, and a stabilising amount of a combination comprising isopropanol and an aminomethylene phosphonate or hydroxyalkyl diphosphonate and optionally a polyhydroxy aliphatic carboxylate, %'s being by weight.
Claim 3
Dependent Claim
28 words
A composition according to claim 1 in which the weight ratio of alcohol to the total weight of polyhydroxycarboxylate, if any, and phosphonate is from 10:1 to 50:1.
Claim 4
Dependent Claim
39 words
A composition according to claim 1 or 2 and further characterised by any feature or combination of features present in any of claims 2 to 12, or 14 to 23, or 26 to 29 of European Patent Specification 0037184A1.
Claim 5
Dependent Claim
40 words
A composition according to claim 1 or 2 and further characterised by any feature or combination of features present any of claims 30 to 35 of said European Patent Specification 0037184A1, any reference to ethanol therein being substituted by isopropanol.
Claim 6
Dependent Claim
18 words
A liquid detergent composition substantially as described herein with respect to any one of Examples 5 to 12.
Claim 7
Dependent Claim
18 words
A liquid detergent composition substantially as described herein with respect to any one of Examples 5 to 12.
Claim 8
Dependent Claim
51 words
A process for the production of detergent compositions according to any preceding claim wherein the components are mixed until an homogeneous mixture is obtained, the order of introduction of the components being such that the hydrogen peroxide contacts the builder or surfactants only in the presence of the - stabiliser system.
Claim 9
Dependent Claim
49 words
A process for washing or laundering comprising the steps of diluting a composition as described in any of claims 1 to 5 to a desired extent and contacting the article to be washed with the dilute solution at a temperature from ambient to the boiling point of the solution.
Claim 10
Dependent Claim
42 words
A liquid bleach composition comprising at least 3 % hydrogen peroxide, at least 5 % isopropanol and in conjunction with the isopropanol a stabilising amount of a compound selected from amino compounds substituted by methylene phosphonate groups and hydroxyalkyl diphosphonates, and water.
Claim 11
Dependent Claim
42 words
A liquid bleach composition comprising at least 3 % hydrogen peroxide, at least 5 % isopropanol and in conjunction with the isopropanol a stabilising amount of a compound selected from amino compounds substituted by methylene phosphonate groups and hydroxyalkyl diphosphonates, and water.
Claim 12
Dependent Claim
31 words
A composition according to claim 8 and further characterised by any feature or combination of features present in any of claims 2 to 11 of British Patent application 8109743, as filed.
Claim 13
Dependent Claim
16 words
A bleach composition substantially as described herein with-respect to any one of Examples 15 to 24.
Claim 14
Dependent Claim
16 words
A bleach composition substantially as described herein with-respect to any one of Examples 15 to 24.
Claim 15
Dependent Claim
34 words
A process of bleaching in which the article or stain to be bleached is brought into contact with a bleaching composition according to claims 8, 9 or 10, optionally after dilution of the latter.
Claim 16
Dependent Claim
134 words
Aqueous hydrogen peroxide compositions, many of which are suitable for dilution and augmentation to form liquid detergent compositions according to European patent specification no 0037184 or aqueous bleach compositions according to British patent application 8109743, which consist essentially of a) from 20 to 35 % by weight, based on the composition, of hydrogen peroxide, b) water in an amount of at least 3 parts per-7 parts by weight of hydrogen peroxide and c) an organics component comprising a mixture of stabiliser in a weight ratio to the hydrogen peroxide of from 1:4 to 3:1 and comprising a low molecular weight monohydric aliphatic alcohol and an aminomethylenephosphonate and/or an hydroxyalkyldiphosphonate optionally together with up to thrice its weight of a polyhydroxycarboxylate to a total weight ratio to the monohydric alcohol of from 1:4.5 to 1:60.
Claim 17
Dependent Claim
134 words
Aqueous hydrogen peroxide compositions, many of which are suitable for dilution and augmentation to form liquid detergent compositions according to European patent specification no 0037184 or aqueous bleach compositions according to British patent application 8109743, which consist essentially of a) from 20 to 35 % by weight, based on the composition, of hydrogen peroxide, b) water in an amount of at least 3 parts per-7 parts by weight of hydrogen peroxide and c) an organics component comprising a mixture of stabiliser in a weight ratio to the hydrogen peroxide of from 1:4 to 3:1 and comprising a low molecular weight monohydric aliphatic alcohol and an aminomethylenephosphonate and/or an hydroxyalkyldiphosphonate optionally together with up to thrice its weight of a polyhydroxycarboxylate to a total weight ratio to the monohydric alcohol of from 1:4.5 to 1:60.
Claim 18
Dependent Claim
24 words
A premix according to claim 12 in which the weight ratio of alcohol to hydrogen peroxide is selected within the range 5:7 to 10:7.
Claim 19
Dependent Claim
29 words
A premix according to claim 12 or 13 in which the weight ratio of alcohol to the total weight of polyhydroxy carboxylate and phosphonate is from 14:1 to 30:1.
Claim 20
Dependent Claim
20 words
A premix aqueous hydrogen peroxide composition, substantially as described herein with respect to any one of Examples 25 to 28.
Claim 21
Dependent Claim
20 words
A premix aqueous hydrogen peroxide composition, substantially as described herein with respect to any one of Examples 25 to 28.
Claim 22
Dependent Claim
57 words
A process for preparing a premix composition according to any one of claims 12 to 15 in which 30 to 70% w/w aqueous hydrogen peroxide is introduced into the alcohol and the phosphonate and any polyhydroxy carboxylate are either introduced subsequently into the alcohol/aqueous hydrogen peroxide mixture or into the alcohol before its mixture with hydrogen peroxide.
Claim 23
Dependent Claim
46 words
A process according to claim 16.in a modification of which the aqueous hydrogen peroxide and organics component are introduced into a body of the premix composition in such relative amounts and rates that the concentration of hydrogen peroxide in the mixture does not exceed 35% w/w.
Claim 24
Dependent Claim
70 words
A process for introducing a detergent composition according to any of claims 1 to 5 or bleaching composition according to any of claims 8 to 10 in which a premix composition according to any of claims 12 to 15 is augmented with the components of, respectively, the detergent or bleaching composition other than the hydrogen peroxide and stabilisers required and diluted as necessary to produce said detergent or bleach compositions.
Claim 25
Dependent Claim
28 words
A hydrogen peroxide-containing composition or process for its preparation or process for washing or laundering employing any novel feature described herein alone with any other feature described herein.
Claim 26
Dependent Claim
28 words
A hydrogen peroxide-containing composition or process for its preparation or process for washing or laundering employing any novel feature described herein alone with any other feature described herein.
References Cited (Backward Citations)
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