EP1354938A1 - Pastilles de lessive à comportement de dissolution amélioré - Google Patents
Pastilles de lessive à comportement de dissolution amélioré Download PDFInfo
- Publication number
- EP1354938A1 EP1354938A1 EP03075889A EP03075889A EP1354938A1 EP 1354938 A1 EP1354938 A1 EP 1354938A1 EP 03075889 A EP03075889 A EP 03075889A EP 03075889 A EP03075889 A EP 03075889A EP 1354938 A1 EP1354938 A1 EP 1354938A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- soap
- surfactants
- granules
- coagel
- laundry
- 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.)
- Withdrawn
Links
- 238000004090 dissolution Methods 0.000 title description 16
- 239000000344 soap Substances 0.000 claims abstract description 86
- 239000004094 surface-active agent Substances 0.000 claims abstract description 25
- 239000003945 anionic surfactant Substances 0.000 claims abstract description 24
- 239000008187 granular material Substances 0.000 claims abstract description 20
- 239000002736 nonionic surfactant Substances 0.000 claims abstract description 15
- 125000000129 anionic group Chemical group 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims description 52
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 22
- 239000002253 acid Substances 0.000 claims description 22
- 229910021536 Zeolite Inorganic materials 0.000 claims description 21
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 21
- 239000010457 zeolite Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 17
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 11
- 235000017550 sodium carbonate Nutrition 0.000 claims description 11
- 239000004615 ingredient Substances 0.000 claims description 10
- 150000007513 acids Chemical class 0.000 claims description 8
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 8
- 239000000194 fatty acid Substances 0.000 claims description 8
- 229930195729 fatty acid Natural products 0.000 claims description 8
- 150000004665 fatty acids Chemical class 0.000 claims description 7
- 238000006386 neutralization reaction Methods 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 239000012876 carrier material Substances 0.000 claims description 6
- 235000021588 free fatty acids Nutrition 0.000 claims description 6
- 238000011065 in-situ storage Methods 0.000 claims description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 5
- 239000004202 carbamide Substances 0.000 claims description 5
- 125000004432 carbon atom Chemical group C* 0.000 claims description 5
- 239000000470 constituent Substances 0.000 claims description 5
- 230000002378 acidificating effect Effects 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 239000003153 chemical reaction reagent Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000001694 spray drying Methods 0.000 claims description 2
- 125000005480 straight-chain fatty acid group Chemical group 0.000 claims description 2
- 239000000843 powder Substances 0.000 description 36
- 239000000047 product Substances 0.000 description 30
- 239000002585 base Substances 0.000 description 25
- 238000009472 formulation Methods 0.000 description 23
- TUNFSRHWOTWDNC-UHFFFAOYSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCCC(O)=O TUNFSRHWOTWDNC-UHFFFAOYSA-N 0.000 description 18
- 239000011734 sodium Substances 0.000 description 13
- 229940105132 myristate Drugs 0.000 description 10
- TWJNQYPJQDRXPH-UHFFFAOYSA-N 2-cyanobenzohydrazide Chemical compound NNC(=O)C1=CC=CC=C1C#N TWJNQYPJQDRXPH-UHFFFAOYSA-N 0.000 description 8
- 235000021360 Myristic acid Nutrition 0.000 description 8
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 7
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 7
- 239000001768 carboxy methyl cellulose Substances 0.000 description 7
- 229910052708 sodium Inorganic materials 0.000 description 7
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 7
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 6
- 239000003599 detergent Substances 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- FRPJTGXMTIIFIT-UHFFFAOYSA-N tetraacetylethylenediamine Chemical compound CC(=O)C(N)(C(C)=O)C(N)(C(C)=O)C(C)=O FRPJTGXMTIIFIT-UHFFFAOYSA-N 0.000 description 6
- 239000002518 antifoaming agent Substances 0.000 description 5
- 238000005469 granulation Methods 0.000 description 5
- 230000003179 granulation Effects 0.000 description 5
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 4
- 125000000217 alkyl group Chemical group 0.000 description 4
- -1 alkyl sulphates Chemical class 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- BCKXLBQYZLBQEK-KVVVOXFISA-M Sodium oleate Chemical compound [Na+].CCCCCCCC\C=C/CCCCCCCC([O-])=O BCKXLBQYZLBQEK-KVVVOXFISA-M 0.000 description 3
- 150000004996 alkyl benzenes Chemical class 0.000 description 3
- 230000000740 bleeding effect Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- IBIKHMZPHNKTHM-RDTXWAMCSA-N merck compound 25 Chemical compound C1C[C@@H](C(O)=O)[C@H](O)CN1C(C1=C(F)C=CC=C11)=NN1C(=O)C1=C(Cl)C=CC=C1C1CC1 IBIKHMZPHNKTHM-RDTXWAMCSA-N 0.000 description 3
- 150000003138 primary alcohols Chemical class 0.000 description 3
- 150000003333 secondary alcohols Chemical class 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000002280 amphoteric surfactant Substances 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-M hexadecanoate Chemical compound CCCCCCCCCCCCCCCC([O-])=O IPCSVZSSVZVIGE-UHFFFAOYSA-M 0.000 description 2
- 238000010348 incorporation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 2
- 229940045870 sodium palmitate Drugs 0.000 description 2
- GGXKEBACDBNFAF-UHFFFAOYSA-M sodium;hexadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCC([O-])=O GGXKEBACDBNFAF-UHFFFAOYSA-M 0.000 description 2
- 229940114926 stearate Drugs 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical class OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 125000005599 alkyl carboxylate group Chemical group 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- HIAAVKYLDRCDFQ-UHFFFAOYSA-L calcium;dodecanoate Chemical compound [Ca+2].CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O HIAAVKYLDRCDFQ-UHFFFAOYSA-L 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000007884 disintegrant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 229940012017 ethylenediamine Drugs 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000036619 pore blockages Effects 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 229940114930 potassium stearate Drugs 0.000 description 1
- MQOCIYICOGDBSG-UHFFFAOYSA-M potassium;hexadecanoate Chemical compound [K+].CCCCCCCCCCCCCCCC([O-])=O MQOCIYICOGDBSG-UHFFFAOYSA-M 0.000 description 1
- ANBFRLKBEIFNQU-UHFFFAOYSA-M potassium;octadecanoate Chemical compound [K+].CCCCCCCCCCCCCCCCCC([O-])=O ANBFRLKBEIFNQU-UHFFFAOYSA-M 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- BTURAGWYSMTVOW-UHFFFAOYSA-M sodium dodecanoate Chemical compound [Na+].CCCCCCCCCCCC([O-])=O BTURAGWYSMTVOW-UHFFFAOYSA-M 0.000 description 1
- 229940082004 sodium laurate Drugs 0.000 description 1
- 229940045845 sodium myristate Drugs 0.000 description 1
- 229940080350 sodium stearate Drugs 0.000 description 1
- WYPBVHPKMJYUEO-NBTZWHCOSA-M sodium;(9z,12z)-octadeca-9,12-dienoate Chemical compound [Na+].CCCCC\C=C/C\C=C/CCCCCCCC([O-])=O WYPBVHPKMJYUEO-NBTZWHCOSA-M 0.000 description 1
- CVYDEWKUJFCYJO-UHFFFAOYSA-M sodium;docosanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCCCCCC([O-])=O CVYDEWKUJFCYJO-UHFFFAOYSA-M 0.000 description 1
- JUQGWKYSEXPRGL-UHFFFAOYSA-M sodium;tetradecanoate Chemical compound [Na+].CCCCCCCCCCCCCC([O-])=O JUQGWKYSEXPRGL-UHFFFAOYSA-M 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- 125000004417 unsaturated alkyl group Chemical group 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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
- C11D10/00—Compositions of detergents, not provided for by one single preceding group
- C11D10/04—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap
-
- 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
- C11D10/00—Compositions of detergents, not provided for by one single preceding group
- C11D10/04—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap
- C11D10/042—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap based on anionic surface-active compounds and soap
-
- 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
- C11D11/00—Special methods for preparing compositions containing mixtures of detergents
- C11D11/0082—Special methods for preparing compositions containing mixtures of detergents one or more of the detergent ingredients being in a liquefied state, e.g. slurry, paste or melt, and the process resulting in solid detergent particles such as granules, powders or beads
-
- 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
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0047—Detergents in the form of bars or tablets
- C11D17/0065—Solid detergents containing builders
- C11D17/0073—Tablets
- C11D17/0086—Laundry tablets
-
- 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
- C11D3/26—Organic compounds containing nitrogen
- C11D3/32—Amides; Substituted amides
- C11D3/323—Amides; Substituted amides urea or derivatives thereof
Definitions
- This invention not only enhances the rate of tablet dispersion/dissolution, expressed as T90 and measured by the method disclosed e.g. in the examples of WO 00/22089 , but as a result of this improvement, also reduces the risk of residues and patch damage.
- Tablets that comprise low solubility soap and anionics in ratios of about 0.1 are disclosed in e.g. US 5 900 399 (examples 1 and 2); in EP 716 144 (examples) tablets are disclosed wherein the ratio between a non specified soap and anionics ranges from about 2.3 to about 0.4, while the ratio between the soap and the total of anionics and non-ionics herein is about 0.1 to 0.2. Still these tablets do not display satisfying dissolution properties. This is due, as we found, to the fact that the soap and anionics are not added in the correct physical form. We found that if first a coagel is made from at least the anionics (but the non-ionics can be present as well) and the low solubilty soap and this coagel is added to the tablets the dissolution properties improved considerably.
- a coagel is defined here as a thermoreversible gel, which is formed by spontaneous separation of an anisotropic interconnected solid network from an isotropic continuum.
- One way to make a coagel of these ingredients is to contact a mix of solid carrier material, in particular a mix of zeolite and soda ash with at least part of the free fatty acid constituents of the low solubility soap and the acidic form of anionic surfactants (optionally in the presence of non-ionic surfactants) and then neutralise the acids by an in-situ neutralisation reacting the soda ash which is part of the carrier material with the acids.
- a mix of solid carrier material in particular a mix of zeolite and soda ash with at least part of the free fatty acid constituents of the low solubility soap and the acidic form of anionic surfactants (optionally in the presence of non-ionic surfactants) and then neutralise the acids by an in-situ neutralisation reacting the soda ash which is part of the carrier material with the acids.
- an in-situ neutralisation of a mix of at least the anionics and the free fatty acid constituents of the soap using an alkali
- our invention concerns in the first instance novel laundry tablets comprising granules wherein soap and surfactants are present and wherein the surfactants comprise either one or more anionic surfactants or a mix of one or more anionic and one or more non-ionic surfactants and wherein the soap has a Tk of at least 35°C while the weight ratio of soap to anionic surfactants is at least 0.1, preferably 0.1 to 0.5 and the weight ratio of soap to total surfactants is less than 0.5.
- the soap can be present as a coagel with the anionics only but also coagels of soap and all surfactants present lead to good results.
- the laundry tablet so-formed has enhanced dispersion/dissolution properties while maintaining tablet integrity. This integrity can be expressed as Fmax, which is measured by the method disclosed in the examples of WO 00/22089
- Very convenient soaps are soap derived from one or more fatty acids selected from the group consisting of straight chain fatty acids with 12 to 24 carbon atoms.
- the "low solubility soap” is defined by its solubility in water expressed as a Kraft temperature, (Tk value, i.e. the minimum solubility temperature for the soap corresponding to the crystal solubility boundary).
- Tk value i.e. the minimum solubility temperature for the soap corresponding to the crystal solubility boundary
- the target minimum value for this Tk is 35°C.
- suitable soaps include those selected from one or more of saturated and unsaturated alkyl carboxylates where the counterion is one of sodium, potassium, calcium or magnesium.
- the soap or blend must have a Tk value in excess of 35 Celsius.
- Examples of single soaps include sodium laurate, sodium myristate, sodium palmitate, sodium stearate, sodium behenate, potassium palmitate, potassium stearate and calcium laurate.
- Examples of blends include blends from 99/1 to 1/99 of sodium soaps of palmitate and myristate, palmitate and stearate, and myristate and stearate.
- Examples of blends containing unsaturated alkyl soaps include less than 1:1 blends of sodium oleate and sodium stearate and sodium oleate and sodium palmitate.
- compositions can also be post dosed to the compositions.
- Preferred additional components are urea and sodium carbonate.
- Other components include one or more detergency builders, bleaches, bleach precursors and optionally other detergent ingredients.
- the soluble surfactants are usually comprised of one or more anionic and nonionic surfactants but can also include amphoteric and cationic surfactants.
- anionic surfactant is selected from LAS and PAS.
- nonionic surfactants are selected from alcohol ethoxylates.
- amphoteric surfactants are typically betaine-type derivatives.
- Synthetic (i.e. non-soap) anionic surfactants are well known to those skilled in the art.
- PAS Primary alkyl sulphate having the formula: ROSO 3 - M + in which R is an alkyl or alkenyl chain of 8 to 18 carbon atoms especially 10 to 14 carbon atoms and M + is a solubilising cation, is commercially significant as an anionic surfactant.
- Suitable nonionic surfactant compounds which may be used include in particular the reaction products of compounds having a hydrophobic group and a reactive hydrogen atom, for example, aliphatic alcohols, acids, amides or alkyl phenols with alkylene oxides, especially ethylene oxide.
- Nonionic surfactant compounds are alkyl (C 8-22 ) phenolethylene oxide condensates, the condensation products of linear or branched aliphatic C 8-20 primary or secondary alcohols with ethylene oxide, and products made by condensation of ethylene oxide with the reaction products of propylene oxide and ethylene-diamine.
- the primary and secondary alcohol ethoxylates especially the C 9-11 and C 12-15 primary and secondary alcohols ethoxylated with an average of from 5 to 20 moles of ethylene oxide per mole of alcohol.
- the coagel of soluble and insoluble surfactants necessary for the invention can also be made by a process wherein the in-situ neutralisation of the acids is performed by using an alkali reagent of a co-injected mix of anionic surfactants and the free fatty acid constituent of the soap during an NTR processing.
- the granules that can be applied can be the result of a spray drying process.
- the neutralisation reaction between acids and soda ash is performed in a high shear solid mixer.
- tablet components typically include builders, bleaches, bleach precursors, optical brighteners, polymers, electrolytes, fillers, organic disintegrants and clays
- the insoluble sodium soap (1:1 blend of C16 and C18 fatty acids which are subsequently neutralised during processing) is mixed with the nonionic surfactant to prevent bleeding on storage.
- No soaps are blended with the anionic surfactant.
- the ratio of insoluble soap/ nonionic surfactants is ca 1.6/10, and the ratio of insoluble soap/total soluble surfactants is 0.7/10.
- Process details All powders (except Zeolite A24 layer) added to FS100 batch high shear granulator. Powders premixed. The LAS acid is heated to approx 70°c and added to the powder.
- Control product - (wgt%) Formulation Control LAS Acid 18.67 NI 7eo 5.93 NI 3eo 3.11 Pristerine 4916 (A fully hardened tallow fatty acid soap) 1.46 Na Acetate 5.93 Light Soda Ash (LSA) 12.64 Sodium carboxymethyl Cellulose (SCMC) 0.88 Zeolite A24 48.76 Zeolite Layer 2.63 Full formulation details (wgt %) Formulation Control Base Powder 46.40 Anti foam granule 1.80 NaPercarbonate 15.00 Tetraacetyl ethylene diamine (TAED) 5.10 Anti redeposition polymer 5.50 NaCarbonate dense 1.40 NaAcetate 24.90
- the base detergent formulation is given in Table 4. (wgt %) Formulation LAS Acid 18.4 NI 7eo 5.8 NI 3eo 3.0 Na Acetate 5.8 LSA 12.4 SCMC 0.9 Myristic acid 2914 2.8 Zeolite A24 48.2 Zeolite A24 layer 2.6
- Example 3 this product contains C14 soap, (myristate) blended in with both LAS and nonionics.
- the ratio of soap/total soluble surfactants 1/10.
- the base detergent formulation is given in (wgt %) Formulation LAS Acid 16.64 NI 7eo 5.27 NI 3eo 2.73 Myristate 2914 2.55 Na Acetate 5.27 LSA 11.27 SCMC 0.73 Zeolite A24 53.18 Zeolite Layer 2.36
- Example 4 - this product contains C14 soap, (myristate) blended in with both LAS and nonionics.
- the soap/total soluble surfactant ratio 2.7/10.
- the base detergent formulation is given in Table 8. (wgt %) Formulation LAS Acid 14.56 NI 7eo 4.63 NI 3eo 2.37 Myristate 2914 5.60 Na Acetate 4.20 LSA 8.87 SCMC 0.57 Zeolite A24 55.21 Zeolite Layer 3.99
- the base detergent formulation is given in Table 11.
- This soap blend falls outside the scope of the requirement that the Tk of the soap being >35°C.
- the actual Tk of the sodium soap of Priolene 6930 will be ca 15°C.
- Example 6B The base detergent formulation for Example 6B is given Formulation LAS Acid 14.56 NI 7eo 4.63 NI 3eo 2.37 Priolene 6930 5.60 Na Acetate 4.20 LSA 8.87 SCMC 0.57 Zeolite A24 55.21 Zeolite Layer 3.99
- Examples 7 and 8 In these examples the control base powder of example 1 is made and the postdose ingredients, are as shown in Table 13 with the Fmax values as given.
- T90 values are clearly superior when the sodium acetate is replaced by urea, even though the tablet hardness is greater in the urea containing tablet.
- Example 8 In this example the base powder of Example 2 has been used with the post dose ingredients as shown in Table 14.
- T90 values are substantially shorter than those of Example 7 where an identical post-dose was used. This confirms that the combination of modified base and urea.soda ash post dose work together to deliver a further improvement in dissolution.
- Example 9 In this example the base powder of Example 3 has been used with the postdose ingredients as shown in Table 15.
- Example 10 In this example the base powder of Example 4 has been used with the postdose ingredients as shown in Table 16. The T90 value is less than that of Example 7 where the conventional base is used.
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03075889A EP1354938A1 (fr) | 2002-04-18 | 2003-03-27 | Pastilles de lessive à comportement de dissolution amélioré |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02252764 | 2002-04-18 | ||
EP02252764 | 2002-04-18 | ||
EP03075889A EP1354938A1 (fr) | 2002-04-18 | 2003-03-27 | Pastilles de lessive à comportement de dissolution amélioré |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1354938A1 true EP1354938A1 (fr) | 2003-10-22 |
Family
ID=28676399
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03075889A Withdrawn EP1354938A1 (fr) | 2002-04-18 | 2003-03-27 | Pastilles de lessive à comportement de dissolution amélioré |
Country Status (1)
Country | Link |
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EP (1) | EP1354938A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1903100A1 (fr) * | 2006-09-19 | 2008-03-26 | Unilever N.V. | Tablettes détergentes |
CN101165151B (zh) * | 2007-09-29 | 2010-05-19 | 上海特地旺农业科技有限公司 | 一种天然、温和的清洁剂 |
WO2010105816A1 (fr) * | 2009-03-17 | 2010-09-23 | Bbt Bergedorfer Biotechnik Gmbh | Agent de nettoyage contenant de l'urée et/ou au moins un derivé de celle-ci |
WO2018141104A1 (fr) * | 2017-02-06 | 2018-08-09 | The Procter & Gamble Company | Feuille de détergent à lessive comprenant des lignes de frangibilité |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1004596A (en) * | 1962-03-07 | 1965-09-15 | Procter & Gamble | Detergent tablet |
EP0716144A2 (fr) * | 1994-11-14 | 1996-06-12 | Unilever Plc | Détergent sous forme de tablette ayant un revêtement soluble dans l'eau |
US5900399A (en) * | 1994-02-10 | 1999-05-04 | Henkel Kommanditgesellschaft Auf Aktien | Tablet containing builders |
US6083893A (en) * | 1994-05-16 | 2000-07-04 | The Proctor And Gamble Co. | Shaped semi-solid or solid dishwashing detergent |
-
2003
- 2003-03-27 EP EP03075889A patent/EP1354938A1/fr not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1004596A (en) * | 1962-03-07 | 1965-09-15 | Procter & Gamble | Detergent tablet |
US5900399A (en) * | 1994-02-10 | 1999-05-04 | Henkel Kommanditgesellschaft Auf Aktien | Tablet containing builders |
US6083893A (en) * | 1994-05-16 | 2000-07-04 | The Proctor And Gamble Co. | Shaped semi-solid or solid dishwashing detergent |
EP0716144A2 (fr) * | 1994-11-14 | 1996-06-12 | Unilever Plc | Détergent sous forme de tablette ayant un revêtement soluble dans l'eau |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1903100A1 (fr) * | 2006-09-19 | 2008-03-26 | Unilever N.V. | Tablettes détergentes |
CN101165151B (zh) * | 2007-09-29 | 2010-05-19 | 上海特地旺农业科技有限公司 | 一种天然、温和的清洁剂 |
WO2010105816A1 (fr) * | 2009-03-17 | 2010-09-23 | Bbt Bergedorfer Biotechnik Gmbh | Agent de nettoyage contenant de l'urée et/ou au moins un derivé de celle-ci |
US8252122B2 (en) | 2009-03-17 | 2012-08-28 | Bbt Bergedorfer Biotechnik Gmbh | Use of an agent that contains carbamide and/or at least a derivative thereof as a cleaning agent |
WO2018141104A1 (fr) * | 2017-02-06 | 2018-08-09 | The Procter & Gamble Company | Feuille de détergent à lessive comprenant des lignes de frangibilité |
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