WO1991013139A1 - Composition detergente - Google Patents
Composition detergente Download PDFInfo
- Publication number
- WO1991013139A1 WO1991013139A1 PCT/GB1991/000294 GB9100294W WO9113139A1 WO 1991013139 A1 WO1991013139 A1 WO 1991013139A1 GB 9100294 W GB9100294 W GB 9100294W WO 9113139 A1 WO9113139 A1 WO 9113139A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- composition
- weight
- hydratable
- composition according
- salts
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims abstract description 119
- 239000003599 detergent Substances 0.000 title description 5
- 150000003839 salts Chemical class 0.000 claims abstract description 59
- 239000002245 particle Substances 0.000 claims abstract description 43
- 239000007787 solid Substances 0.000 claims abstract description 36
- 239000002736 nonionic surfactant Substances 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 239000011236 particulate material Substances 0.000 claims abstract description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 12
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical group [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 12
- 239000012876 carrier material Substances 0.000 claims description 10
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 10
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 9
- 239000007844 bleaching agent Substances 0.000 claims description 9
- 125000004432 carbon atom Chemical group C* 0.000 claims description 8
- 229960001922 sodium perborate Drugs 0.000 claims description 7
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 claims description 7
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 6
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 5
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims description 4
- 230000002209 hydrophobic effect Effects 0.000 claims description 3
- 229940045872 sodium percarbonate Drugs 0.000 claims description 3
- 239000007859 condensation product Substances 0.000 claims description 2
- 229940001593 sodium carbonate Drugs 0.000 claims 1
- MWNQXXOSWHCCOZ-UHFFFAOYSA-L sodium;oxido carbonate Chemical compound [Na+].[O-]OC([O-])=O MWNQXXOSWHCCOZ-UHFFFAOYSA-L 0.000 claims 1
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 18
- 238000009472 formulation Methods 0.000 description 16
- 239000003960 organic solvent Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 229910021532 Calcite Inorganic materials 0.000 description 8
- 238000001879 gelation Methods 0.000 description 8
- 239000013049 sediment Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 239000004926 polymethyl methacrylate Substances 0.000 description 7
- 238000000926 separation method Methods 0.000 description 7
- 239000002689 soil Substances 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- 150000001298 alcohols Chemical class 0.000 description 6
- 239000007791 liquid phase Substances 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 229920005439 Perspex® Polymers 0.000 description 5
- 229910021485 fumed silica Inorganic materials 0.000 description 5
- 238000004062 sedimentation Methods 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 5
- 229920002554 vinyl polymer Polymers 0.000 description 5
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 4
- -1 aliphatic alcohols Chemical class 0.000 description 4
- 125000000217 alkyl group Chemical group 0.000 description 4
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 4
- 239000008116 calcium stearate Substances 0.000 description 4
- 235000013539 calcium stearate Nutrition 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 4
- 239000004094 surface-active agent Substances 0.000 description 4
- 229910002019 Aerosil® 380 Inorganic materials 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000003085 diluting agent Substances 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 150000003254 radicals Chemical class 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 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 3
- 238000005406 washing Methods 0.000 description 3
- XSVSPKKXQGNHMD-UHFFFAOYSA-N 5-bromo-3-methyl-1,2-thiazole Chemical compound CC=1C=C(Br)SN=1 XSVSPKKXQGNHMD-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 239000012190 activator Substances 0.000 description 2
- 125000002947 alkylene group Chemical group 0.000 description 2
- 239000013011 aqueous formulation Substances 0.000 description 2
- 238000004061 bleaching Methods 0.000 description 2
- 239000013065 commercial product Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 210000003298 dental enamel Anatomy 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- VTIIJXUACCWYHX-UHFFFAOYSA-L disodium;carboxylatooxy carbonate Chemical compound [Na+].[Na+].[O-]C(=O)OOC([O-])=O VTIIJXUACCWYHX-UHFFFAOYSA-L 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 150000004677 hydrates Chemical class 0.000 description 2
- 238000010348 incorporation Methods 0.000 description 2
- 239000004200 microcrystalline wax Substances 0.000 description 2
- 235000019808 microcrystalline wax Nutrition 0.000 description 2
- 150000004682 monohydrates Chemical class 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000002304 perfume Substances 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000011164 primary particle Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910002012 Aerosil® Inorganic materials 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229920005682 EO-PO block copolymer Polymers 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 244000269722 Thea sinensis Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- WLDHEUZGFKACJH-UHFFFAOYSA-K amaranth Chemical compound [Na+].[Na+].[Na+].C12=CC=C(S([O-])(=O)=O)C=C2C=C(S([O-])(=O)=O)C(O)=C1N=NC1=CC=C(S([O-])(=O)=O)C2=CC=CC=C12 WLDHEUZGFKACJH-UHFFFAOYSA-K 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001860 citric acid derivatives Chemical class 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229940096386 coconut alcohol Drugs 0.000 description 1
- 235000019864 coconut oil Nutrition 0.000 description 1
- 239000003240 coconut oil Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- SYELZBGXAIXKHU-UHFFFAOYSA-N dodecyldimethylamine N-oxide Chemical compound CCCCCCCCCCCC[N+](C)(C)[O-] SYELZBGXAIXKHU-UHFFFAOYSA-N 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 125000001924 fatty-acyl group Chemical group 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 229930182470 glycoside Natural products 0.000 description 1
- 150000002338 glycosides Chemical class 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- 239000002198 insoluble material Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052752 metalloid Inorganic materials 0.000 description 1
- 150000002738 metalloids Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 150000003138 primary alcohols Chemical class 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 150000003333 secondary alcohols Chemical class 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 239000001509 sodium citrate Substances 0.000 description 1
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 1
- DZCAZXAJPZCSCU-UHFFFAOYSA-K sodium nitrilotriacetate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CC([O-])=O DZCAZXAJPZCSCU-UHFFFAOYSA-K 0.000 description 1
- 229910000031 sodium sesquicarbonate Inorganic materials 0.000 description 1
- 235000018341 sodium sesquicarbonate Nutrition 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 235000019794 sodium silicate Nutrition 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000012749 thinning agent Substances 0.000 description 1
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 210000002268 wool Anatomy 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
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0004—Non aqueous liquid compositions comprising insoluble particles
-
- 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
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/825—Mixtures of compounds all of which are non-ionic
Definitions
- This invention relates to liquid compositions containing solid particles suspended in a liquid phase vmich is essentially non-aqueous and, at least predominantly, is nonionic surfactant.
- compositions of the present invention include at least one hydratable salt in the suspended solid material.
- Non-aqueous compositions containing suspended particulate solids are known, e.g. from GB 1292352 (Unilever). This discloses liquid detergent compositions- containing nonionic surfactant as the liquid phase, wit;. particulate water-soluble salts suspended in it. Most of these compositions also contain some organic solvent other than surfactant, usually mostly ethanol, as diluent and thinning agent.
- composition should provide stable suspension of the solid without however setting or gelling to an excessively viscous state.
- our GB 1292352 teaches that a small percentage of a highly voluminous inorganic carrier material of submicror. size - fumed silica is suitable - may be included in a no:.- aqueous liquid detergent composition. Such material considerably improves the suspending properties and may be used in compositions of this invention. However, the amount of such material must be restricted. Too much of it leads to excessive gelation of the composition.
- This invention provides a liquid, non-aqueous composition
- a liquid phase which is at least predominantiy nonionic surfactant in an amount of 25 to 75% of nonionic surfactant by weight, having suspended therein 20 to 75% by weight of solid particulate material with a surface weighted mean particle size in the range of 1 to lOO ⁇ , better not over 70 ⁇ , which material comprises i) from 5 to 72% by weight of one or more salts which form hydrate(s) stable at 20°C but which are present in an anhydrous or incompletely hydrated state, together with ii) from 3 to 70% by weight of one or more salts which has no stable hydrate at 20°C; all of the above percentages being by weight based on the whole composition.
- the composition may also contain a smaller quantity, up to 5% by weight of the composition, of a suspended solid carrier material having a surface weighted mean particle size below l ⁇ so that it is conveniently referred to as a "submicron carrier" .
- This material will generally be an oxide.
- compositions in accordance with the invention may serve as various types of cleaning composition.
- One possibility is a liquid detergent composition for use ir. washing fabrics.
- compositions of this invention may serve as abrasive cleaners, for instance as hard surface cleaners.
- Such a formulation provides a convenient method of delivering surfactant and desired solids to a surface which is to be cleaned.
- Certain forms of the invention are additionally advantageous in that the non-aqueous liquid phase permits use of water-soluble solid abrasive particles which can be readily rinsed from the surface after cleaning.
- the solids present can include a peroxygen bleach which will be in a stable condition by reason of the non-aqueous environment. Admixture of water at the time of use will then make the bleach active.
- suspended hydratable salt increases the suspending properties of the composition and this effect adds to the suspending properties brought about by submicron carrier material, if any.
- non-hydratable salts do not enhance suspending properties - at least not as mucr. as do hydratable salts - but also do not increase the tendency to gelation and setting. Non-hydratable salts are thus able to function as a solid diluent for hydratable salts.
- a preferred additional constituent of compositions of the present invention is 0.1 to 20% by weight of an organic solvent.
- the presence of such solvent is useful r: improving the ability of the compositions to remove a range of soil from a surface. It may be preferred to avoid hydroxylic solvents, or at any rate the lower (C 1 to C. alcohols) . These may be oxidised at varying speeds by a bleach system, if such a system is present.
- Organic solvent does tend to cause a reduction in suspending properties which must then be compensated by an enhancement of the amount of carrier or hydratable salt.
- the amount of nonionic surfactant must be in the range 25 to 75% by weight of the composition.
- the amount of nonionic surfactant is not more than 65% better not more than 50% by weight of the composition.
- a particularly preferred range is 35% to 49%.
- the amount of organic solvent, if any, is not more than 8% and that the total amount of liquid phase does not exceed 55% or possibly does not exceed even 49% of the composition (all percentages being by weight based on the whole composition).
- This invention may be utilised in conjunction with other expedients for ameliorating gelation while achieving good suspension of solids.
- other expedients for ameliorating gelation while achieving good suspension of solids.
- the incorporation cf polyvinylpyrrolidone or a derivative thereof as taught in our European application EP 359491.
- Another possible expedient is the incorporation of an organic acid, such as alkyl benzene sulphonic acid.
- the submicron carrier will have a mean particle size which is well below 1 micron regardless of the mean size definition which is used, and the other suspended solid will have a mean particle size of at least 1 micron with most definitions of mean size.
- the surfactant is a compound or mixture of compounds produced by the condensation of alkylene oxide groups, whicr. are hydrophilic in nature, with an organic hydrophobic compound which may be aliphatic, notably with a C ⁇ to C_ alkyl chain or alkyl aromatic, notably with a C ⁇ to C.. alkyl chain.
- the length of the hydrophilic or polyoxyalkylene radical which is condensed with any particular hydrophobic group can be adjusted to yield a water-soluble compound having the desired degree of balance between hydrophilic and hydrophobic elements.
- nonionic surfactants include the condensation product of aliphatic alcohols having from 8 to 22 carbon atoms in either straight or branched chain configuration with ethylene oxide, such as a coconut oil ethylene oxide condensate having from 2 to 15 moles of ethylene oxide per mole of coconut alcohol, and condensates of synthetic primary or secondary alcohols having 8 to 15 carbon atoms with 3 to 12 moles of ethylene oxide per mole of the synthetic alcohol, and condensates of alkylphenols whose alkyl group contains from 6 to 12 carbon atoms with 5 to 25 moles of ethylene oxide per mole of alkylphenol.
- ethylene oxide such as a coconut oil ethylene oxide condensate having from 2 to 15 moles of ethylene oxide per mole of coconut alcohol
- condensates of synthetic primary or secondary alcohols having 8 to 15 carbon atoms with 3 to 12 moles of ethylene oxide per mole of the synthetic alcohol
- Mixtures of nonionic surfactant actives can be employed.
- nonionic surfactants are ethoxylated alcohols. These may in particular be derived from alcohols containing from 5 to 15 carbon atoms and ethoxylated with an average of 5 to 10 ethylene oxide residues. Especially preferred is nonionic surfactant derived from a mixture of alcohols mostly containing 9 to 11 carbon atoms and having an average of 6 ethylene oxide residues.
- nonionic surfactant is "topped” or “peaked”, that is to say partially fractionated in order to free it from unethoxylated alcohol which tends to have an unpleasant odour.
- This material is a finely divided solid having a mean primary particle size of less than one micron, for instance in the range 1 to 900 m ⁇ and preferably well below 900 m ⁇ . Typically such solids will have an average surface area of 50 to 500m 2 /g and a bulk density of 10 to 180 g/litre.
- Suitable inorganic carrier materials are light, highly voluminous metal and metalloid oxides including, fcr example, silica, alumina, magnesia and ferric oxide and mixtures thereof. These materials, particularly silicas, may readily be obtained commercially. Suitable silicas are sold by Degussa under the Registered Trade Mark Aerosil and by Cabot Corporation under the Registered Trade Mark Cab-0-Sil. Whilst any highly voluminous inorganic carrier material having the specified physical characteristics may be employed, it is preferred that the carrier material should have a bulk density within the range of from 20 to 150g/l, more particularly from 30 to lOOg/1, and an average surface area lying within the range of from 150 to 400m 2 /g.
- the average surface area is indicative of particle size and is defined as that measured by the Brenauer, Emmet and Teller method.
- the preferred particle size and size distribution of the inorganic carrier material is such that substantially all of the particles of the carrier material lie within a size range of 1 to 100 m ⁇ .
- the amount of the submicron carrier material which is used is preferably of the order of from 0.7 to 3% by weight of the composition.
- This comprises the mixture of hydratable and non- hydratable salts.
- These will preferably have an average particle size in the range of l ⁇ to lOO ⁇ . Desirably though they should have an average particle size smaller than 7C;; to avoid palpable grittiness. It is preferred that at least 99% by weight of the particles should pass a 53 ⁇ sieve, with the average particle size being less than 50 ⁇ .
- composition is intended to be abrasive, it is preferred that at least the water-soluble salts should have a relatively larger particle size than is preferred for a composition intended for some other application such as adding to water to make a fabric washing liquor.
- composition is not intended to be abrasive it will be desirable, as with known fabric washing liquids, to comminute the suspended particles to an average particle size not exceeding lO ⁇ better not exceeding 5 ⁇ .
- the water-soluble salts should have an average particle size exceeding 5 ⁇ .
- the hydratable and the non-hydratable salts may both satisfy this requirement.
- the surface weighted mean particle size of the water-soluble salt(s) present is between 10 and 25 ⁇ while the particle size distribution satisfies the relationship:
- D(v,0.5) is the median particle diameter
- the suspended solid can function as an abrasive. As explained below, it may serve other functions.
- the siz range mentioned above is smaller than is customary in liquid abrasive cleaners. It is advantageous in giving less tendency to scratch and easier rinsing.
- the suspended solid should preferably constitute between 20 or 25% and 60% by weight of the composition.
- composition More preferably it constitutes between 35 and 58% by weight of the composition. In particularly preferred compositions the total amount of suspended solid other than the submicron carrier is at least 51% by weight of the composition.
- inorganic salts which have hydrates are sodium carbonate, sodium tripolyphosphate, sodium sulphate, sodium silicate in various forms, and the double salt sodium sesquicarbonate.
- Sodium citrate and the organic builder sodium nitrilotriacetate are both hydratable. It will be appreciated that a number of these salts are knovm detergency builders and can function as such when the composition is eventually diluted with water during use.
- the hydratable salt can be a peroxygen bleach.
- Sodium perborate and sodium percarbonate are both hydratable salts.
- Sodium percarbonate is a perhydrate of sodium carbonate and is further hydratable, analogously to sodium carbonate itself.
- the amount of hydratable salt is desirably sufficient, in relation to the amount of voluminous submicron inorganic carrier, to reduce sedimentation to a very low level. Sedimentation can be observed as the volume of clear liquid which separates at the top of a column of the composition in a measuring cylinder. Preferred compositions have not more than 1% separation after standing for 10 days.
- the amount of hydratable salt should not cause gelling of the composition, or at any rate should allow a reasonable storage time before serious gelling.
- the effect of hydratable salts varies from one to another.
- sodium perborate and sodium carbonate both cause a greater enhancement of suspending properties than an equal amount of sodium tripolyphosphate, but the amount of them which car. ;_- tolerated without gelling is also less.
- the amount of hydratable salt is 5 to 45% by weight of the composition. In an abrasive composition the amount will generally be 5 to 25% by weight of the composition and preferably is 8 to 20% by weight of the composition.
- a water-soluble but non-hydratable salt can be used. This is advantageous in that the entire composition can be water-soluble, and hence can be rinsed away with water without leaving any insoluble residue. Such complete solution on rinsing helps to avoid leaving any undesired residue on cleaned surfaces. Salts which are water-soluble but non-hydratable appear to be uncommon.
- the salt envisaged for this use is sodium bicarbonate (whose water-solubility is rather low).
- the amount of non-hydratable salt is a balancing quantity as required to increase the total amount of suspended solid to the desired level but in accordance with this invention it is at least 10% of the composition. More preferably it is at least 10% of the composition. It may lie in the range 10 to 55% of the composition, with amounts at the higher end of this range being appropriate for abrasive compositions where the non-hydratable salt can serve as abrasive material. Thus the amount may be 30 tc 50% of the composition.
- organic solvent is desirably included, but this does tend to cause a reduction in suspending properties which must then be compensated by an enhancement of the amount of carrier or hydratable salt.
- a bleach activator may be included in the composition.
- the preferred material is tetraacetylethylenediamine (TAED). It is a fairly soft organic solid and may dissolve, at least partially, in organic solvent (if present) and nonionic surfactant. Its density is about lg/ml and so is similar to that of the surfactant and it appears to have little or no effect on the properties of the composition.
- the composition should not contain sufficient moisture to destroy its non-aqueous character. Depending or. the nature of the suspended solids some moisture content may be acceptable.
- the quantity of moisture in the composition should not exceed 51 of the composition by weight. If a bleach is present this free moisture content should preferably not exceed 1%, better 0.1% of the composition by weight.
- compositions were prepared using a standard preparative procedure.
- nonionic surfactant was C g -C j , alcohol ethoxylated with average 6E0 and topped tc remove residual unethoxylated alcohol.
- Organic solvent was a paraffinic/alcohol solvent mixture. The carbon chains in both solvents contain more than six carbon atoms.
- Inorganic carrier was Aerosil 380, a fumed silica available from Degussa AG and which has a primary particle size of less than 50m ⁇ (the manufacturers quote 7 to 40m ⁇ ) .
- the liquid base was prepared by stirring together in a beaker the requisite amounts of nonionic surfactant, organic solvent and perfume using a Heidolph RZR50 paddle stirrer and then adding the fumed silica (Aerosil 380).
- stirring was continued for 10 minutes using a Silverson laboratory mixer equipped with a special shaft with a hard coating on the journal area, a medium emulsor screen and axial flow head.
- the requisite quantities of the other solids were stirred into the liquid base, using the paddle stirrer once again.
- Trial compositions were prepared by the above procedure, omitting the step of adding silica.
- the ingredients of each composition are tabulated below. Also set out below is the separation after varying periods of time.
- Nonionic surfactant 46 46 46
- Sodium perborate 54 Calcite 54
- the densities and particle sizes of the suspended solids were not identical.
- the densities, mean particle diameters, and theoretical initial sedimentation rates were:
- Trial compositions were prepared by the procedure mentioned above. Some contained 46% liquid, others 60% liquid. The formulations and the extent of separation after varying periods of time are set out in the following Tables. If it was noted that a composition had obviously gelled to a set state, this was noted with the abbreviation "gld”.
- compositions were prepared with ingredients as set out in the following Table, in which separations after periods of time are also quoted.
- compositions A, B, D and E show that increasing silica enhances suspending properties.
- compositions C and D show that solvent slightly reduces suspending properties.
- Compositions E and F or D and H show that sodium tripolyphosphate enhances suspending properties.
- composition H Comparison of composition H with composition G shows that perborate enhances suspending properties (but this is partly offset by the presence of solvent in composition H).
- a composition was prepared using a fine calcite as the non-hydratable salt. This abrasive is the same as the calcite referred to in Example 1; it was Durcal 2 available from Omya. A similar composition was prepared using sodiur. carbonate and bicarbonate. The two formulations were as follows:
- Both formulations A and B were tested for physic; cleaning efficiency in comparison with a current commercia. product having an aqueous liquid phase. The efficiency was tested on the following soiled substrates.
- the sheet was placed in an oven at 50°C to ensure complete removal of the solvent. From the weight of deposited on the sheet (ca 0.28g) and the surface area (ca 280cm -2 ), the thickness of the layer was estimated as about lO ⁇ (assuming a value of 0.8 for the density of the wax) .
- a solution of stearic acid in chloroform was sprayed onto Perspex sheet as above ( following the established code of practice for safe handling of chloroform).
- the plate was then repeatedly immersed in a solution of calcium chloride and left to dry in an oven at 50°C.
- a damp tissue was used to wipe non-adherent salts from the surface, leaving behind a thin hard layer of calcium stearate.
- Rubber was cut from the sole of a discarded shoe and applied in close straight lines on a white vinyl tile to give a band of rubber-marked tile.
- Soil removal was determined using a Sheen Instruments in-line scrubber equipped with a cellulose sponge and operating at a relatively low surface pressure (28g cm" 2 ) equivalent to light rubbing. Tests were carried out by pre-moistening a clean sponge and applying a fixec amount of formulation (1ml). The number of strokes required to completely remove the soil from a variety of soil/substrate combinations was determined. Results are presented in the Table below as:
- non-aqueous formulations clearly perform very well on oily and waxy soils and exceptionally well c:. rubber-marked vinyl. Performance was similar on both artificial bath scum soils consisting mainly of calcium stearate on Perspex and enamel.
- a Sheen in-line scrubber was used with pre- moistened terry toweling operating over a range of s rface pressures (28-149g cm" 2 ).
- the change in reflectance at 60" from normal incidence was measured after 100 strokes ( 10ml formulation) using a BYK Chemie 'Color Gloss' gloss meter equipped with a multi-angle gloss sensing head.
- the formulations were also compared on painted wooden tiles using a Wool Industries Research Association abrasion tester with pre-moistened terry toweling covered heads operating at a surface pressure of 422g cm" - ( 500 rubs, 20ml formulation).
- formulation B was superior to formulation A.
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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)
Abstract
L'invention concerne des compositions liquides, non aqueuses comprenant: un surfactant liquide non ionique dans une quantité de 25 à 75 % en poids; 20 à 75 % de matières particulaires solides suspendues dans ledit surfactant, la dimension particulaire moyenne pondérée en fonction de la surface étant comprise entre 1 et 100ν, comprenant une combinaison de: i) de 5 à 72 % en poids d'un ou de plusieurs sels formant un/des hydrate(s) stable(s) à 20 °C mais présents dans un état anhydre ou incomplètement hydraté, avec ii) de 3 à 70 % en poids d'un ou de plusieurs sels n'ayant pas d'hydrate stable à 20 °C. La combinaison de sels hydratables et non hydratables améliore les propriétés de suspension, tout en empêchant une gélification excessive.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR919106051A BR9106051A (pt) | 1990-02-26 | 1991-02-25 | Composicao liquida nao aquosa |
AU73441/91A AU660605B2 (en) | 1990-02-26 | 1991-02-25 | Detergent composition |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB909004289A GB9004289D0 (en) | 1990-02-26 | 1990-02-26 | Detergent compositions |
GB9004289.6 | 1990-02-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1991013139A1 true WO1991013139A1 (fr) | 1991-09-05 |
Family
ID=10671633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1991/000294 WO1991013139A1 (fr) | 1990-02-26 | 1991-02-25 | Composition detergente |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0444858B1 (fr) |
JP (1) | JPH05503548A (fr) |
AU (1) | AU660605B2 (fr) |
BR (1) | BR9106051A (fr) |
CA (1) | CA2036593C (fr) |
DE (1) | DE69112671T2 (fr) |
ES (1) | ES2078435T3 (fr) |
GB (1) | GB9004289D0 (fr) |
WO (1) | WO1991013139A1 (fr) |
ZA (1) | ZA911395B (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992020772A1 (fr) * | 1991-05-24 | 1992-11-26 | Imperial Chemical Industries Plc | Compositions detersives |
WO1998000518A1 (fr) * | 1996-06-28 | 1998-01-08 | The Procter & Gamble Company | Preparation de compositions detergents liquides non aqueuses contenant des particules, avec pretraitement des elements secs |
US5814592A (en) * | 1996-06-28 | 1998-09-29 | The Procter & Gamble Company | Non-aqueous, particulate-containing liquid detergent compositions with elasticized, surfactant-structured liquid phase |
US6576602B1 (en) * | 1996-06-28 | 2003-06-10 | The Procter & Gamble Company | Nonaqueous, particulate-containing liquid detergent compositions with surfactant-structured liquid phase |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9123219D0 (en) * | 1991-11-01 | 1991-12-18 | Unilever Plc | Liquid cleaning products |
US6491947B2 (en) | 2000-11-03 | 2002-12-10 | Chemlink Laboratories, Llc | Expanded perborate salt, use, and method of production |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4316812A (en) * | 1977-06-09 | 1982-02-23 | Imperial Chemical Industries Limited | Detergent composition |
US4615820A (en) * | 1983-03-28 | 1986-10-07 | Imperial Chemical Industries Plc | Detergent compositions |
EP0225654A1 (fr) * | 1985-11-11 | 1987-06-16 | Unilever N.V. | Composition détergente liquide non aqueuse à adjuvant actif |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4828723A (en) * | 1987-07-15 | 1989-05-09 | Colgate-Palmolive Company | Stable non-aqueous suspension containing organophilic clay and low density filler |
-
1990
- 1990-02-26 GB GB909004289A patent/GB9004289D0/en active Pending
-
1991
- 1991-02-19 CA CA002036593A patent/CA2036593C/fr not_active Expired - Fee Related
- 1991-02-25 AU AU73441/91A patent/AU660605B2/en not_active Ceased
- 1991-02-25 WO PCT/GB1991/000294 patent/WO1991013139A1/fr unknown
- 1991-02-25 JP JP3505201A patent/JPH05503548A/ja active Pending
- 1991-02-25 BR BR919106051A patent/BR9106051A/pt not_active IP Right Cessation
- 1991-02-26 DE DE69112671T patent/DE69112671T2/de not_active Expired - Fee Related
- 1991-02-26 ES ES91301509T patent/ES2078435T3/es not_active Expired - Lifetime
- 1991-02-26 ZA ZA911395A patent/ZA911395B/xx unknown
- 1991-02-26 EP EP91301509A patent/EP0444858B1/fr not_active Revoked
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4316812A (en) * | 1977-06-09 | 1982-02-23 | Imperial Chemical Industries Limited | Detergent composition |
US4615820A (en) * | 1983-03-28 | 1986-10-07 | Imperial Chemical Industries Plc | Detergent compositions |
EP0225654A1 (fr) * | 1985-11-11 | 1987-06-16 | Unilever N.V. | Composition détergente liquide non aqueuse à adjuvant actif |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992020772A1 (fr) * | 1991-05-24 | 1992-11-26 | Imperial Chemical Industries Plc | Compositions detersives |
GB2272224A (en) * | 1991-05-24 | 1994-05-11 | Ici Plc | Detergent compositions |
GB2272224B (en) * | 1991-05-24 | 1995-08-30 | Ici Plc | Detergent compositions |
WO1998000518A1 (fr) * | 1996-06-28 | 1998-01-08 | The Procter & Gamble Company | Preparation de compositions detergents liquides non aqueuses contenant des particules, avec pretraitement des elements secs |
US5814592A (en) * | 1996-06-28 | 1998-09-29 | The Procter & Gamble Company | Non-aqueous, particulate-containing liquid detergent compositions with elasticized, surfactant-structured liquid phase |
US6576602B1 (en) * | 1996-06-28 | 2003-06-10 | The Procter & Gamble Company | Nonaqueous, particulate-containing liquid detergent compositions with surfactant-structured liquid phase |
Also Published As
Publication number | Publication date |
---|---|
ZA911395B (en) | 1992-10-28 |
AU660605B2 (en) | 1995-07-06 |
EP0444858A1 (fr) | 1991-09-04 |
AU7344191A (en) | 1991-09-18 |
CA2036593C (fr) | 1998-12-08 |
EP0444858B1 (fr) | 1995-09-06 |
BR9106051A (pt) | 1992-11-17 |
CA2036593A1 (fr) | 1991-08-27 |
DE69112671D1 (de) | 1995-10-12 |
ES2078435T3 (es) | 1995-12-16 |
GB9004289D0 (en) | 1990-04-18 |
DE69112671T2 (de) | 1996-02-01 |
JPH05503548A (ja) | 1993-06-10 |
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