EP0502675A2 - Detergent compositions - Google Patents
Detergent compositions Download PDFInfo
- Publication number
- EP0502675A2 EP0502675A2 EP19920301766 EP92301766A EP0502675A2 EP 0502675 A2 EP0502675 A2 EP 0502675A2 EP 19920301766 EP19920301766 EP 19920301766 EP 92301766 A EP92301766 A EP 92301766A EP 0502675 A2 EP0502675 A2 EP 0502675A2
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- EP
- European Patent Office
- Prior art keywords
- detergent composition
- zeolite
- detergent
- composition
- zeolite map
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/12—Water-insoluble compounds
- C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
- C11D3/1246—Silicates, e.g. diatomaceous earth
- C11D3/128—Aluminium silicates, e.g. zeolites
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
- C11D3/3761—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in solid compositions
Definitions
- the present invention relates to detergent compositions, especially particulate detergent compositions, suitable for the laundering of fabrics in domestic or commercial washing machines, containing a detergency builder system which is a combination of a specific aluminosilicate and a polycarboxylate polymer.
- Detergent compositions for heavy-duty fabric washing conventionally contain materials - detergency builders - to lower the concentration of calcium water hardness ions in the wash liquor and thus to give good detergency in hard water as well as in soft water.
- Alkali metal aluminosilicate ion-exchangers are now well-known replacements for the inorganic phosphates traditionally used as detergency builders in fabric washing detergents. It is also well known that zeolites show certain deficiencies in detergency building, as compared with phosphates, and that supplementary building power is generally desirable. In many zero-phosphate premium detergent powders now on the European market, homo- or copolymers of acrylic acid are included for this purpose.
- Detergent compositions built with crystalline aluminosilicate (zeolite) and also containing polyacrylate or acrylic/maleic copolymer are disclosed, for example, in EP 221 777A, EP 240 356A, EP 270 240A, EP 340 013A, EP 358 473A, EP 367 339A, EP 390 251A and EP 352 135A (Unilever); EP 215A, EP 63 399A, EP 66 915A, EP 130 640A and EP 137 669A (Procter & Gamble); EP 228 011A and EP 291 869A (Henkel); and EP 229 671A (Kao).
- EP 221 777A, EP 240 356A, EP 270 240A, EP 340 013A, EP 358 473A, EP 367 339A, EP 390 251A and EP 352 135A Unilever
- Water-softening or detergency building granules based on zeolites and polycarboxylate polymers are disclosed in EP 184 794A, EP 243 908A and EP 344 629A (Henkel), EP 289 767A and EP 289 768A (Degussa), GB 1 568 420 and GB 2 210 055A (Colgate), DE 3 316 513A (Benckiser), and DE 3 707 806A (Dispo- Kommerz AG).
- EP 384 070A (Unilever) describes and claims a novel zeolite P (maximum aluminium zeolite P, or zeolite MAP) having an especially low silicon to aluminium ratio, not greater than 1.33 and preferably not greater than 1.15. This material is demonstrated to be a more efficient detergency builder than conventional zeolite 4A.
- the present invention is based on the discovery that the novel combination of zeolite MAP and polycarboxylate polymer provides an especially effective detergency builder system.
- EP 419 036A (Unilever), published on 27 March 1991, describes and claims a detergency builder additive for use in a Baukasten (building block) product in conjunction with a separately packaged main wash detergent powder, the additive comprising:
- the present invention provides a detergent composition suitable for fabric washing, comprising:
- the present invention provides a detergency builder composition comprising:
- the invention provides a method of washing fabrics, which includes the step of bringing the fabrics into contact with an aqueous wash liquor containing a detergent composition as defined above and/or a detergency builder composition as defined above.
- the invention provides the use of a polycarboxylate polymer in acid and/or salt form as a detergency builder in a detergency builder composition or a detergent composition suitable for fabric washing containing zeolite MAP.
- the detergent composition is a mixture of the detergent composition
- the detergent composition of the invention contains, as essential components, a detergent-active compound, and a detergency builder system.
- the detergent compositions of the invention will contain, as essential ingredients, one or more detergent-active compounds (surfactants) which may be chosen from soap and non-soap anionic, cationic, nonionic, amphoteric and zwitterionic detergent-active compounds, and mixtures thereof.
- surfactants may be chosen from soap and non-soap anionic, cationic, nonionic, amphoteric and zwitterionic detergent-active compounds, and mixtures thereof.
- suitable detergent-active compounds are available and are fully described in the literature, for example, in "Surface-Active Agents and Detergents", Volumes I and II, by Schwartz, Perry and Berch.
- the preferred detergent-active compounds that can be used are soaps and synthetic non-soap anionic and nonionic compounds.
- Anionic surfactants are well-known to those skilled in the art. Examples include alkylbenzene sulphonates, particularly linear alkylbenzene sulphonates having an alkyl chain length of C8-C15; primary and secondary alkyl sulphates, particularly C12-C15 primary alkyl sulphates; alkyl ether sulphates; olefin sulphonates; alkyl xylene sulphonates; dialkyl sulphosuccinates; and fatty acid ester sulphonates.
- Sodium salts are generally preferred.
- Nonionic surfactants that may be used include the primary and secondary alcohol ethoxylates, especially the aliphatic C12-C15 primary and secondary alcohols ethoxylated with an average of from 3 to 20 moles of ethylene oxide per mole of alcohol; and alkylpolyglycosides.
- Preferred detergent-active systems suitable for compositions intended for use in automatic fabric washing machines, comprises anionic non-soap surfactant, or nonionic surfactant, or combinations of the two in any ratio, optionally together with soap.
- the total amount of detergent-active compounds present may suitably lie in the range of from 5 to 40 wt%.
- the detergency builder system of the invention contains two essential components: zeolite MAP and a polycarboxylate polymer.
- Zeolite MAP is defined as an alkali metal aluminosilicate of the zeolite P type having a silicon to aluminium ratio not greater than 1.33, preferably not greater than 1.20, more preferably not greater than 1.15 and most desirably not greater than 1.10.
- the silicone to aluminium ratio is preferably within the range of from 0.9 to 1.33, and more preferably within the range of from 0.9 to 1.2.
- zeolite MAP having a silicon to aluminium ratio not greater than 1.07.
- Zeolite MAP generally has a calcium binding capacity of at least 150 mg CaO per g of anhydrous aluminosilicate.
- zeolite MAP like other zeolites contains water of hydration, for the purposes of the present invention amounts and percentages of zeolite are expressed in terms of the anhydrous material.
- the second essential component of the detergency builder system of the invention is a polycarboxylate polymer.
- This term is used to mean a water-soluble polymeric polycarboxylic acid, a water-soluble salt of a polymeric polycarboxylic acid, or a mixture of these.
- Preferred polycarboxylate polymers are homo- and copolymers of acrylic acid and/or maleic acid, in acid and/or salt form. Especially preferred polymers are acrylic acid homopolymers, and acrylic/maleic copolymers. The acrylic/maleic copolymers disclosed in EP 25 551B (BASF) are of particular interest.
- Polymeric polycarboxylates which may suitably be used, alone or in combination, in the compositions of the present invention include the following:
- the weight ratio of aluminosilicate to polymer is preferably within the range of from 2:1 to 10:1, more preferably from 4.5:1 to 9.5:1.
- Detergent compositions of the invention preferably comprise from 10 to 45 wt%, more preferably from 12 to 30 wt%, of zeolite MAP; and from 2 to 10 wt%, more preferably from 2 to 6 wt%, of the polymer.
- Detergent compositions according to the invention may also suitably contain a bleach system.
- a bleach system preferably comprises one or more peroxy bleach compounds, for example, inorganic persalts or organic peroxyacids, which may be employed in conjunction with bleach precursors to improve bleaching action at low temperatures.
- the bleach system preferably comprises a peroxy bleach compound, preferably an inorganic persalt, optionally in conjunction with a precursor.
- Preferred inorganic persalts are sodium perborate monohydrate and tetrahydrate, and sodium percarbonate.
- Preferred bleach precursors are peracetic acid precursors, especially tetraacetylethylene diamine (TAED); peroxybenzoic acid precursors; and the novel quaternary ammonium and phosphonium bleach activators disclosed in US 4 751 015 and US 4 818 426 (Lever Brothers Company), more especially cholyl p-sulphophenyl carbonate (CSPC).
- TAED tetraacetylethylene diamine
- CSPC cholyl p-sulphophenyl carbonate
- the bleach system may also include a bleach stabiliser (heavy metal sequestrant).
- a bleach stabiliser heavy metal sequestrant
- compositions of the invention may if desired containg water-soluble silicates such as sodium silicate.
- the amount of soluble silicates in the compositions of the invention is preferably kept to a relatively low level: preferably below 5 wt%, and more preferably below 1 wt%.
- compositions of the invention may advantageously contain alkali metal carbonate, to provide alkalinity rather than for detergency building.
- alkali metal, preferably sodium, carbonate may suitably range from 2 to 20 wt%, preferably from 5 to 15 wt%.
- compositions of the invention include fluorescers, antiredeposition agents, inorganic salts such as sodium sulphate, enzymes, lather control agents, fabric softening agents, pigments, coloured speckles, and perfumes. This list is not intended to be exhaustive.
- Detergent compositions of the invention may be prepared by any suitable method.
- the particulate detergent compositions which are the preferred embodiment of the invention are suitably prepared by spray-drying a slurry of compatible heat-insensitive ingredients, and then spraying on or postdosing those ingredients unsuitable for processing via the slurry.
- the skilled detergent formulator will have no difficulty in deciding which ingredients should be included in the slurry and which should not.
- Both the zeolite MAP and the polymeric builder component are suitable for inclusion in the slurry, although it may be advantageous for processing reasons for part of the zeolite MAP to be incorporated post-tower.
- the particulate detergent compositions of the invention may be prepared to any suitable bulk density.
- Compositions having bulk densities of at least 400 g/l, more preferably at least 400 g/l, are of especial interest.
- the detergency builder system of the invention may be exist as a composition in its own right that may be used for water softening or added to the wash liquor to enhance the performance of an unbuilt or underbuilt detergent composition in hard water.
- Such a composition may, for example, form the building or water-softening component of a Baukasten (building block) detergent composition as described and claimed in EP 419 036A (Unilever), published on 27 March 1991, in which a main wash powder is supplied together with separately packaged additives (builder, bleach) that need only be used when the wash conditions demand them.
- Baukasten building block
- additives builder, bleach
- a typical composition of this type might contain from 50 to 80 wt% zeolite MAP (anhydrous basis), and from 2 to 10 wt% polycarboxylate polymer.
- a composition of this type may in principle contain no components other than the two essential components (zeolite MAP and polymer), although in practice it may be desirable to include other ingredients, for example, sodium carbonate, and binders such as nonionic surfactants or cellulose derivatives.
- zeolite MAP and polymer zeolitic MAP and polymer
- binders such as nonionic surfactants or cellulose derivatives.
- builder additives of the specific composition claimed in EP 419 036A are disclaimed and do not form part of the present invention.
- a builder composition of the the under discussion may also be used as a raw material or premix in the manufacture of more fully formulated detergent compositions.
- the invention also includes within its scope detergent compositions prepared by admixing the two builder materials (zeolite MAP and polymer) separately and independently with other detergent ingredients.
- the polymer was an acrylic/maleic copolymer in sodium salt form, Sokalan (Trade Mark) CP5 ex BASF, Ludwigshafen, Germany.
- the zeolite MAP was prepared on a pilot scale by a method similar to that described in Examples 1 to 3 of EP 384 070A (Unilever). Its silicon to aluminium ratio was 1.10.
- the zeolite 4A was Wessalith (Trade Mark) P powder ex Degussa.
- the builder systems of the four compositions were as follows:
- Detergency was measured in a Candy (Trade Mark) washing machine using the 40°C main wash only cycle. Test cloths as specified below were washed together with a 3 kg soiled load, using two different product dosages and two different water hardnesses.
- the zeolite MAP, zeolite 4A and copolymer were as used in Examples 1 to 3.
- the ratio of zeolite (anhydrous basis) to polymer in each case was 9.33, and the total amount of zeolite plus polymer in each case was 31.0.
- Detergency was measured in a Miele (Trade Mark) 756 washing machine using the 40°C main wash cycle. Test cloths as specified below were washed together with a 4 kg soiled load, using two different product dosages and two different water hardnesses.
- composition containing lower percentages of zeolite MAP and acrylic/maleic copolymer was prepared as follows:
- the zeolite MAP and copolymer were the same as those used in Examples 1 to 4.
- the ratio of zeolite MAP to copolymer was 6.00 and the total amount of zeolite MAP and copolymer was 14.00.
- the composition exhibited excellent cleaning and detergency performance.
Abstract
Description
- The present invention relates to detergent compositions, especially particulate detergent compositions, suitable for the laundering of fabrics in domestic or commercial washing machines, containing a detergency builder system which is a combination of a specific aluminosilicate and a polycarboxylate polymer.
- Detergent compositions for heavy-duty fabric washing conventionally contain materials - detergency builders - to lower the concentration of calcium water hardness ions in the wash liquor and thus to give good detergency in hard water as well as in soft water.
- Alkali metal aluminosilicate ion-exchangers, especially the crystalline sodium aluminosilicate zeolite 4A, are now well-known replacements for the inorganic phosphates traditionally used as detergency builders in fabric washing detergents. It is also well known that zeolites show certain deficiencies in detergency building, as compared with phosphates, and that supplementary building power is generally desirable. In many zero-phosphate premium detergent powders now on the European market, homo- or copolymers of acrylic acid are included for this purpose.
- Detergent compositions built with crystalline aluminosilicate (zeolite) and also containing polyacrylate or acrylic/maleic copolymer are disclosed, for example, in EP 221 777A, EP 240 356A, EP 270 240A, EP 340 013A, EP 358 473A, EP 367 339A, EP 390 251A and EP 352 135A (Unilever); EP 215A, EP 63 399A, EP 66 915A, EP 130 640A and EP 137 669A (Procter & Gamble); EP 228 011A and EP 291 869A (Henkel); and EP 229 671A (Kao).
- Water-softening or detergency building granules based on zeolites and polycarboxylate polymers are disclosed in EP 184 794A, EP 243 908A and EP 344 629A (Henkel), EP 289 767A and EP 289 768A (Degussa), GB 1 568 420 and GB 2 210 055A (Colgate), DE 3 316 513A (Benckiser), and DE 3 707 806A (Dispo-Kommerz AG).
- EP 384 070A (Unilever) describes and claims a novel zeolite P (maximum aluminium zeolite P, or zeolite MAP) having an especially low silicon to aluminium ratio, not greater than 1.33 and preferably not greater than 1.15. This material is demonstrated to be a more efficient detergency builder than conventional zeolite 4A.
- The present invention is based on the discovery that the novel combination of zeolite MAP and polycarboxylate polymer provides an especially effective detergency builder system.
- EP 419 036A (Unilever), published on 27 March 1991, describes and claims a detergency builder additive for use in a Baukasten (building block) product in conjunction with a separately packaged main wash detergent powder, the additive comprising:
- (i) at least 50 wt% (anhydrous basis) of a water-insoluble alkali metal aluminosilicate, which may be zeolite MAP;
- (ii) from 15 to 20 wt% of sodium carbonate; and
- (iii) from 2 to 12 wt% of organic sequestrant builder, which may be a polycarboxylate polymer.
- Such builder additives are specifically disclaimed from the present application.
- In one aspect, the present invention provides a detergent composition suitable for fabric washing, comprising:
- (i) one or more detergent-active compounds selected from anionic, nonionic, cationic, amphoteric and zwitterionic detergent-active compounds and combinations thereof,
- (ii) a detergency builder system comprising:
- (a) zeolite P having a silicon to aluminium ratio not exceeding 1.33 (hereinafter zeolite MAP), and
- (b) a polycarboxylate polymer in acid and/or salt form,
- In a second aspect, the present invention provides a detergency builder composition comprising:
- (a) zeolite MAP (as defined above), and
- (b) a polycarboxylate polymer in acid and/or salt form,
- In a third aspect, the invention provides a method of washing fabrics, which includes the step of bringing the fabrics into contact with an aqueous wash liquor containing a detergent composition as defined above and/or a detergency builder composition as defined above.
- In a fourth aspect, the invention provides the use of a polycarboxylate polymer in acid and/or salt form as a detergency builder in a detergency builder composition or a detergent composition suitable for fabric washing containing zeolite MAP.
- The detergent composition of the invention contains, as essential components, a detergent-active compound, and a detergency builder system.
- The detergent compositions of the invention will contain, as essential ingredients, one or more detergent-active compounds (surfactants) which may be chosen from soap and non-soap anionic, cationic, nonionic, amphoteric and zwitterionic detergent-active compounds, and mixtures thereof. Many suitable detergent-active compounds are available and are fully described in the literature, for example, in "Surface-Active Agents and Detergents", Volumes I and II, by Schwartz, Perry and Berch.
- The preferred detergent-active compounds that can be used are soaps and synthetic non-soap anionic and nonionic compounds.
- Anionic surfactants are well-known to those skilled in the art. Examples include alkylbenzene sulphonates, particularly linear alkylbenzene sulphonates having an alkyl chain length of C₈-C₁₅; primary and secondary alkyl sulphates, particularly C₁₂-C₁₅ primary alkyl sulphates; alkyl ether sulphates; olefin sulphonates; alkyl xylene sulphonates; dialkyl sulphosuccinates; and fatty acid ester sulphonates. Sodium salts are generally preferred.
- Nonionic surfactants that may be used include the primary and secondary alcohol ethoxylates, especially the aliphatic C₁₂-C₁₅ primary and secondary alcohols ethoxylated with an average of from 3 to 20 moles of ethylene oxide per mole of alcohol; and alkylpolyglycosides.
- Preferred detergent-active systems, suitable for compositions intended for use in automatic fabric washing machines, comprises anionic non-soap surfactant, or nonionic surfactant, or combinations of the two in any ratio, optionally together with soap.
- The total amount of detergent-active compounds present may suitably lie in the range of from 5 to 40 wt%.
- The detergency builder system of the invention contains two essential components: zeolite MAP and a polycarboxylate polymer.
- Zeolite MAP is defined as an alkali metal aluminosilicate of the zeolite P type having a silicon to aluminium ratio not greater than 1.33, preferably not greater than 1.20, more preferably not greater than 1.15 and most desirably not greater than 1.10.
- Zeolite MAP and its use in detergent compositions are described and claimed in EP 384 070A (Unilever).
- The silicone to aluminium ratio is preferably within the range of from 0.9 to 1.33, and more preferably within the range of from 0.9 to 1.2.
- Especially preferred is zeolite MAP having a silicon to aluminium ratio not greater than 1.07.
- Zeolite MAP generally has a calcium binding capacity of at least 150 mg CaO per g of anhydrous aluminosilicate.
- Although zeolite MAP like other zeolites contains water of hydration, for the purposes of the present invention amounts and percentages of zeolite are expressed in terms of the anhydrous material.
- The second essential component of the detergency builder system of the invention is a polycarboxylate polymer. This term is used to mean a water-soluble polymeric polycarboxylic acid, a water-soluble salt of a polymeric polycarboxylic acid, or a mixture of these.
- Preferred polycarboxylate polymers are homo- and copolymers of acrylic acid and/or maleic acid, in acid and/or salt form. Especially preferred polymers are acrylic acid homopolymers, and acrylic/maleic copolymers. The acrylic/maleic copolymers disclosed in EP 25 551B (BASF) are of particular interest.
-
- The weight ratio of aluminosilicate to polymer is preferably within the range of from 2:1 to 10:1, more preferably from 4.5:1 to 9.5:1.
- Detergent compositions of the invention preferably comprise from 10 to 45 wt%, more preferably from 12 to 30 wt%, of zeolite MAP; and from 2 to 10 wt%, more preferably from 2 to 6 wt%, of the polymer.
- Detergent compositions according to the invention may also suitably contain a bleach system. This preferably comprises one or more peroxy bleach compounds, for example, inorganic persalts or organic peroxyacids, which may be employed in conjunction with bleach precursors to improve bleaching action at low temperatures.
- The bleach system preferably comprises a peroxy bleach compound, preferably an inorganic persalt, optionally in conjunction with a precursor.
- Preferred inorganic persalts are sodium perborate monohydrate and tetrahydrate, and sodium percarbonate.
- Preferred bleach precursors are peracetic acid precursors, especially tetraacetylethylene diamine (TAED); peroxybenzoic acid precursors; and the novel quaternary ammonium and phosphonium bleach activators disclosed in US 4 751 015 and US 4 818 426 (Lever Brothers Company), more especially cholyl p-sulphophenyl carbonate (CSPC).
- If desired, the bleach system may also include a bleach stabiliser (heavy metal sequestrant).
- The compositions of the invention may if desired containg water-soluble silicates such as sodium silicate. The amount of soluble silicates in the compositions of the invention is preferably kept to a relatively low level: preferably below 5 wt%, and more preferably below 1 wt%.
- The compositions of the invention may advantageously contain alkali metal carbonate, to provide alkalinity rather than for detergency building. The amount of alkali metal, preferably sodium, carbonate may suitably range from 2 to 20 wt%, preferably from 5 to 15 wt%.
- Other materials that may be present in detergent compositions of the invention include fluorescers, antiredeposition agents, inorganic salts such as sodium sulphate, enzymes, lather control agents, fabric softening agents, pigments, coloured speckles, and perfumes. This list is not intended to be exhaustive.
- Detergent compositions of the invention may be prepared by any suitable method. The particulate detergent compositions which are the preferred embodiment of the invention are suitably prepared by spray-drying a slurry of compatible heat-insensitive ingredients, and then spraying on or postdosing those ingredients unsuitable for processing via the slurry.
- The skilled detergent formulator will have no difficulty in deciding which ingredients should be included in the slurry and which should not.
- Both the zeolite MAP and the polymeric builder component are suitable for inclusion in the slurry, although it may be advantageous for processing reasons for part of the zeolite MAP to be incorporated post-tower.
- The particulate detergent compositions of the invention may be prepared to any suitable bulk density. Compositions having bulk densities of at least 400 g/l, more preferably at least 400 g/l, are of especial interest.
- The detergency builder system of the invention may be exist as a composition in its own right that may be used for water softening or added to the wash liquor to enhance the performance of an unbuilt or underbuilt detergent composition in hard water.
- Such a composition may, for example, form the building or water-softening component of a Baukasten (building block) detergent composition as described and claimed in EP 419 036A (Unilever), published on 27 March 1991, in which a main wash powder is supplied together with separately packaged additives (builder, bleach) that need only be used when the wash conditions demand them.
- A typical composition of this type might contain from 50 to 80 wt% zeolite MAP (anhydrous basis), and from 2 to 10 wt% polycarboxylate polymer.
- A composition of this type may in principle contain no components other than the two essential components (zeolite MAP and polymer), although in practice it may be desirable to include other ingredients, for example, sodium carbonate, and binders such as nonionic surfactants or cellulose derivatives. However, as mentioned above, builder additives of the specific composition claimed in EP 419 036A are disclaimed and do not form part of the present invention.
- A builder composition of the the under discussion may also be used as a raw material or premix in the manufacture of more fully formulated detergent compositions. However, the invention also includes within its scope detergent compositions prepared by admixing the two builder materials (zeolite MAP and polymer) separately and independently with other detergent ingredients.
- The invention is further illustrated by the following non-limiting Examples, in which parts and percentages are by weight unless otherwise stated.
-
- The polymer was an acrylic/maleic copolymer in sodium salt form, Sokalan (Trade Mark) CP5 ex BASF, Ludwigshafen, Germany.
- The zeolite MAP was prepared on a pilot scale by a method similar to that described in Examples 1 to 3 of EP 384 070A (Unilever). Its silicon to aluminium ratio was 1.10.
- The zeolite 4A was Wessalith (Trade Mark) P powder ex Degussa.
-
- Detergency was measured in a Candy (Trade Mark) washing machine using the 40°C main wash only cycle. Test cloths as specified below were washed together with a 3 kg soiled load, using two different product dosages and two different water hardnesses.
- The results, expressed as reflectance differences at 460 nm (delta R₄₆₀), were as follows:
-
- (1) oil/silica/ink soil on cotton;
- (2) Indian ink/olive oil soil on polyester/cotton;
- (3) Indian ink/olive oil/silica/casein soil on cotton;
- (4) Indian ink/olive oil/silica/casein soil on polyester/cotton.
-
-
-
- The zeolite MAP, zeolite 4A and copolymer were as used in Examples 1 to 3.
- The ratio of zeolite (anhydrous basis) to polymer in each case was 9.33, and the total amount of zeolite plus polymer in each case was 31.0.
- Detergency was measured in a Miele (Trade Mark) 756 washing machine using the 40°C main wash cycle. Test cloths as specified below were washed together with a 4 kg soiled load, using two different product dosages and two different water hardnesses.
- The results, expressed as reflectance differences at 460 nm (delta R₄₆₀), were as follows:
- (1), (3) as in Examples 1 to 3
(5) Indian ink/olive oil/silica plus a small amount of casein, on cotton. -
-
-
- The zeolite MAP and copolymer were the same as those used in Examples 1 to 4.
- The ratio of zeolite MAP to copolymer was 6.00 and the total amount of zeolite MAP and copolymer was 14.00.
- The composition exhibited excellent cleaning and detergency performance.
the ratio of zeolite MAP (a) (anhydrous basis) to polycarboxylate polymer preferably being within the range of from 2:1 to 10:1, more preferably from 4.5:1 to 9.5:1.
Claims (14)
characterised in that the detergency builder system (ii) comprises
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB919104547A GB9104547D0 (en) | 1991-03-05 | 1991-03-05 | Detergent compositions |
GB9104547 | 1991-03-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0502675A2 true EP0502675A2 (en) | 1992-09-09 |
EP0502675A3 EP0502675A3 (en) | 1993-01-07 |
Family
ID=10690966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19920301766 Ceased EP0502675A3 (en) | 1991-03-05 | 1992-03-02 | Detergent compositions |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0502675A3 (en) |
JP (1) | JPH07100799B2 (en) |
BR (1) | BR9200687A (en) |
CA (1) | CA2062032C (en) |
GB (1) | GB9104547D0 (en) |
ZA (1) | ZA921644B (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0522726A1 (en) * | 1991-06-25 | 1993-01-13 | Unilever Plc | Detergent compositions |
EP0552053A1 (en) * | 1992-01-17 | 1993-07-21 | Unilever Plc | Detergent compositions |
EP0552054A1 (en) * | 1992-01-17 | 1993-07-21 | Unilever Plc | Detergent compositions |
US5498342A (en) * | 1992-12-08 | 1996-03-12 | Lever Brothers Company | Detergent composition containing zeolite map and organic peroxyacid |
EP0733699A2 (en) * | 1995-03-24 | 1996-09-25 | The Procter & Gamble Company | Detergent composition |
EP0753043A1 (en) * | 1994-03-31 | 1997-01-15 | The Procter & Gamble Company | Detergent composition |
WO1997020024A1 (en) * | 1995-11-30 | 1997-06-05 | Unilever Plc | Detergent compositions containing soil release polymers |
WO2001004246A1 (en) * | 1999-07-09 | 2001-01-18 | Colgate-Palmolive Company | Fabric cleaning composition containing zeolite |
US6455490B1 (en) | 1999-06-10 | 2002-09-24 | Unilever Home & Personal Care Usa Division Of Conopco, In.C | Granular detergent component containing zeolite map and laundry detergent compositions |
US6475982B1 (en) * | 1999-11-24 | 2002-11-05 | Colgate Palmolive Company | Fabric cleaning composition containing zeolite |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9308047D0 (en) * | 1993-04-19 | 1993-06-02 | Unilever Plc | Particulate detergent,bleaching or cleaning compositions containing aluminosilicates |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0015024A1 (en) * | 1979-02-16 | 1980-09-03 | THE PROCTER & GAMBLE COMPANY | Detergent compositions containing binary builder system |
EP0021491A1 (en) * | 1979-06-18 | 1981-01-07 | THE PROCTER & GAMBLE COMPANY | Detergent containing nonionic/cationic surfactant and builder mixture |
EP0384070A2 (en) * | 1988-11-03 | 1990-08-29 | Unilever Plc | Zeolite P, process for its preparation and its use in detergent compositions |
EP0419036A2 (en) * | 1989-08-21 | 1991-03-27 | Unilever Plc | Detergency builder additive and detergent system containing it |
EP0448297A1 (en) * | 1990-03-19 | 1991-09-25 | Unilever Plc | Detergent compositions |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4605509A (en) * | 1973-05-11 | 1986-08-12 | The Procter & Gamble Company | Detergent compositions containing sodium aluminosilicate builders |
GB8626082D0 (en) * | 1986-10-31 | 1986-12-03 | Unilever Plc | Detergent powders |
GB8821034D0 (en) * | 1988-09-07 | 1988-10-05 | Unilever Plc | Detergent compositions |
-
1991
- 1991-03-05 GB GB919104547A patent/GB9104547D0/en active Pending
-
1992
- 1992-02-27 BR BR929200687A patent/BR9200687A/en not_active IP Right Cessation
- 1992-02-28 CA CA002062032A patent/CA2062032C/en not_active Expired - Lifetime
- 1992-03-02 EP EP19920301766 patent/EP0502675A3/en not_active Ceased
- 1992-03-04 JP JP4047159A patent/JPH07100799B2/en not_active Expired - Fee Related
- 1992-03-05 ZA ZA921644A patent/ZA921644B/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0015024A1 (en) * | 1979-02-16 | 1980-09-03 | THE PROCTER & GAMBLE COMPANY | Detergent compositions containing binary builder system |
EP0021491A1 (en) * | 1979-06-18 | 1981-01-07 | THE PROCTER & GAMBLE COMPANY | Detergent containing nonionic/cationic surfactant and builder mixture |
EP0384070A2 (en) * | 1988-11-03 | 1990-08-29 | Unilever Plc | Zeolite P, process for its preparation and its use in detergent compositions |
EP0419036A2 (en) * | 1989-08-21 | 1991-03-27 | Unilever Plc | Detergency builder additive and detergent system containing it |
EP0448297A1 (en) * | 1990-03-19 | 1991-09-25 | Unilever Plc | Detergent compositions |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0522726A1 (en) * | 1991-06-25 | 1993-01-13 | Unilever Plc | Detergent compositions |
US5238594A (en) * | 1991-06-25 | 1993-08-24 | Lever Brothers Co., Division Of Conopco, Inc. | Detergent compositions |
EP0552053A1 (en) * | 1992-01-17 | 1993-07-21 | Unilever Plc | Detergent compositions |
EP0552054A1 (en) * | 1992-01-17 | 1993-07-21 | Unilever Plc | Detergent compositions |
US5259981A (en) * | 1992-01-17 | 1993-11-09 | Lever Brothers Company | Detergent compositions |
US5259982A (en) * | 1992-01-17 | 1993-11-09 | Lever Brothers Company, Division Of Conopco, Inc. | Detergent compositions |
US5498342A (en) * | 1992-12-08 | 1996-03-12 | Lever Brothers Company | Detergent composition containing zeolite map and organic peroxyacid |
EP0753043A1 (en) * | 1994-03-31 | 1997-01-15 | The Procter & Gamble Company | Detergent composition |
EP0753043A4 (en) * | 1994-03-31 | 1999-05-06 | Procter & Gamble | Detergent composition |
EP0733699A2 (en) * | 1995-03-24 | 1996-09-25 | The Procter & Gamble Company | Detergent composition |
EP0733699A3 (en) * | 1995-03-24 | 1997-08-13 | Procter & Gamble | Detergent composition |
WO1997020024A1 (en) * | 1995-11-30 | 1997-06-05 | Unilever Plc | Detergent compositions containing soil release polymers |
US5789367A (en) * | 1995-11-30 | 1998-08-04 | Lever Brothers Company, Division Of Conopco, Inc. | Detergent compositions containing soil release polymers |
US6455490B1 (en) | 1999-06-10 | 2002-09-24 | Unilever Home & Personal Care Usa Division Of Conopco, In.C | Granular detergent component containing zeolite map and laundry detergent compositions |
WO2001004246A1 (en) * | 1999-07-09 | 2001-01-18 | Colgate-Palmolive Company | Fabric cleaning composition containing zeolite |
US6465417B1 (en) * | 1999-07-09 | 2002-10-15 | Colgate-Palmolive Co. | Fabric cleaning composition containing zeolite |
US6465418B1 (en) * | 1999-07-09 | 2002-10-15 | Colgate-Palmolive Co. | Fabric cleaning composition containing zeolite |
AU776532B2 (en) * | 1999-07-09 | 2004-09-16 | Colgate-Palmolive Company, The | Fabric cleaning composition containing zeolite |
US6475982B1 (en) * | 1999-11-24 | 2002-11-05 | Colgate Palmolive Company | Fabric cleaning composition containing zeolite |
Also Published As
Publication number | Publication date |
---|---|
CA2062032C (en) | 1998-06-09 |
ZA921644B (en) | 1993-09-06 |
GB9104547D0 (en) | 1991-04-17 |
CA2062032A1 (en) | 1992-09-06 |
BR9200687A (en) | 1992-11-10 |
JPH07100799B2 (en) | 1995-11-01 |
EP0502675A3 (en) | 1993-01-07 |
JPH04342798A (en) | 1992-11-30 |
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