EP0491723B2 - Liquid detergents - Google Patents
Liquid detergents Download PDFInfo
- Publication number
- EP0491723B2 EP0491723B2 EP90912561A EP90912561A EP0491723B2 EP 0491723 B2 EP0491723 B2 EP 0491723B2 EP 90912561 A EP90912561 A EP 90912561A EP 90912561 A EP90912561 A EP 90912561A EP 0491723 B2 EP0491723 B2 EP 0491723B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- sodium
- composition
- sulphonate
- materials
- hydrotroping
- 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.)
- Expired - Lifetime
Links
- 239000003599 detergent Substances 0.000 title claims abstract description 46
- 239000007788 liquid Substances 0.000 title claims abstract description 37
- 239000000203 mixture Substances 0.000 claims abstract description 118
- 239000000463 material Substances 0.000 claims abstract description 65
- 239000003792 electrolyte Substances 0.000 claims abstract description 37
- 238000005185 salting out Methods 0.000 claims abstract description 19
- 239000011149 active material Substances 0.000 claims abstract description 13
- 239000006185 dispersion Substances 0.000 claims abstract description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 27
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 19
- 239000011734 sodium Substances 0.000 claims description 18
- 229910052708 sodium Inorganic materials 0.000 claims description 18
- 150000001298 alcohols Chemical class 0.000 claims description 17
- 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 claims description 16
- 239000004094 surface-active agent Substances 0.000 claims description 16
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 11
- 125000004432 carbon atom Chemical group C* 0.000 claims description 10
- 125000001183 hydrocarbyl group Chemical group 0.000 claims description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 9
- QUCDWLYKDRVKMI-UHFFFAOYSA-M sodium;3,4-dimethylbenzenesulfonate Chemical compound [Na+].CC1=CC=C(S([O-])(=O)=O)C=C1C QUCDWLYKDRVKMI-UHFFFAOYSA-M 0.000 claims description 9
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 8
- 125000000217 alkyl group Chemical group 0.000 claims description 8
- 239000003752 hydrotrope Substances 0.000 claims description 7
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims description 6
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 6
- XMGQYMWWDOXHJM-UHFFFAOYSA-N limonene Chemical compound CC(=C)C1CCC(C)=CC1 XMGQYMWWDOXHJM-UHFFFAOYSA-N 0.000 claims description 6
- CDOSHBSSFJOMGT-UHFFFAOYSA-N linalool Chemical compound CC(C)=CCCC(C)(O)C=C CDOSHBSSFJOMGT-UHFFFAOYSA-N 0.000 claims description 6
- 229910052783 alkali metal Inorganic materials 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 150000002430 hydrocarbons Chemical class 0.000 claims description 4
- 229960004063 propylene glycol Drugs 0.000 claims description 4
- 239000001490 (3R)-3,7-dimethylocta-1,6-dien-3-ol Substances 0.000 claims description 3
- CDOSHBSSFJOMGT-JTQLQIEISA-N (R)-linalool Natural products CC(C)=CCC[C@@](C)(O)C=C CDOSHBSSFJOMGT-JTQLQIEISA-N 0.000 claims description 3
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 3
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 claims description 3
- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 claims description 3
- 229930195733 hydrocarbon Natural products 0.000 claims description 3
- 235000001510 limonene Nutrition 0.000 claims description 3
- 229940087305 limonene Drugs 0.000 claims description 3
- 229930007744 linalool Natural products 0.000 claims description 3
- 239000003960 organic solvent Substances 0.000 claims description 3
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 claims description 3
- 235000013772 propylene glycol Nutrition 0.000 claims description 3
- IYNDBHDAIOZDQC-UHFFFAOYSA-M sodium;1,2,3,4-tetrahydronaphthalene-1-sulfonate Chemical compound [Na+].C1=CC=C2C(S(=O)(=O)[O-])CCCC2=C1 IYNDBHDAIOZDQC-UHFFFAOYSA-M 0.000 claims description 3
- GIPRGFRQMWSHAK-UHFFFAOYSA-M sodium;2-propan-2-ylbenzenesulfonate Chemical compound [Na+].CC(C)C1=CC=CC=C1S([O-])(=O)=O GIPRGFRQMWSHAK-UHFFFAOYSA-M 0.000 claims description 3
- KVCGISUBCHHTDD-UHFFFAOYSA-M sodium;4-methylbenzenesulfonate Chemical compound [Na+].CC1=CC=C(S([O-])(=O)=O)C=C1 KVCGISUBCHHTDD-UHFFFAOYSA-M 0.000 claims description 3
- 150000003505 terpenes Chemical class 0.000 claims description 3
- 235000007586 terpenes Nutrition 0.000 claims description 3
- 239000003381 stabilizer Substances 0.000 claims description 2
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims 4
- QMGJMGFZLXYHCR-UHFFFAOYSA-N 1-(2-butoxypropoxy)butane Chemical compound CCCCOCC(C)OCCCC QMGJMGFZLXYHCR-UHFFFAOYSA-N 0.000 claims 2
- 230000003165 hydrotropic effect Effects 0.000 claims 1
- 239000004615 ingredient Substances 0.000 description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 20
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
- 229920000642 polymer Polymers 0.000 description 18
- 239000007844 bleaching agent Substances 0.000 description 14
- 239000000047 product Substances 0.000 description 13
- 229920001983 poloxamer Polymers 0.000 description 12
- -1 aliphatic alcohols Chemical class 0.000 description 10
- 239000007787 solid Substances 0.000 description 10
- 238000003860 storage Methods 0.000 description 10
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 9
- 239000002304 perfume Substances 0.000 description 9
- 239000012071 phase Substances 0.000 description 9
- 108090000790 Enzymes Proteins 0.000 description 8
- 102000004190 Enzymes Human genes 0.000 description 8
- 229940088598 enzyme Drugs 0.000 description 8
- 238000005191 phase separation Methods 0.000 description 8
- 239000010457 zeolite Substances 0.000 description 8
- 239000008346 aqueous phase Substances 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- 229910021536 Zeolite Inorganic materials 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 235000014113 dietary fatty acids Nutrition 0.000 description 6
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 6
- 239000000194 fatty acid Substances 0.000 description 6
- 229930195729 fatty acid Natural products 0.000 description 6
- 150000004665 fatty acids Chemical class 0.000 description 6
- 238000009472 formulation Methods 0.000 description 6
- 229910052700 potassium Inorganic materials 0.000 description 6
- 239000011591 potassium Substances 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 239000007795 chemical reaction product Substances 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 244000060011 Cocos nucifera Species 0.000 description 4
- 235000013162 Cocos nucifera Nutrition 0.000 description 4
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 229910021538 borax Inorganic materials 0.000 description 4
- 239000003240 coconut oil Substances 0.000 description 4
- 235000019864 coconut oil Nutrition 0.000 description 4
- 238000005189 flocculation Methods 0.000 description 4
- 230000016615 flocculation Effects 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000004328 sodium tetraborate Substances 0.000 description 4
- 235000010339 sodium tetraborate Nutrition 0.000 description 4
- 235000019832 sodium triphosphate Nutrition 0.000 description 4
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 3
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 3
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000005642 Oleic acid Substances 0.000 description 3
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 3
- 108091005804 Peptidases Proteins 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010348 incorporation Methods 0.000 description 3
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 3
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000000344 soap Substances 0.000 description 3
- 229960001922 sodium perborate Drugs 0.000 description 3
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 description 3
- YGUMVDWOQQJBGA-VAWYXSNFSA-N 5-[(4-anilino-6-morpholin-4-yl-1,3,5-triazin-2-yl)amino]-2-[(e)-2-[4-[(4-anilino-6-morpholin-4-yl-1,3,5-triazin-2-yl)amino]-2-sulfophenyl]ethenyl]benzenesulfonic acid Chemical compound C=1C=C(\C=C\C=2C(=CC(NC=3N=C(N=C(NC=4C=CC=CC=4)N=3)N3CCOCC3)=CC=2)S(O)(=O)=O)C(S(=O)(=O)O)=CC=1NC(N=C(N=1)N2CCOCC2)=NC=1NC1=CC=CC=C1 YGUMVDWOQQJBGA-VAWYXSNFSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- 108010065511 Amylases Proteins 0.000 description 2
- 102000013142 Amylases Human genes 0.000 description 2
- 229910021532 Calcite Inorganic materials 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical class OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 102000035195 Peptidases Human genes 0.000 description 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 2
- 239000004365 Protease Substances 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
- 229920002125 Sokalan® Polymers 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 2
- 235000019418 amylase Nutrition 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical class OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000001110 calcium chloride Substances 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 0.000 description 2
- 150000007942 carboxylates Chemical class 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000003301 hydrolyzing effect Effects 0.000 description 2
- SUMDYPCJJOFFON-UHFFFAOYSA-N isethionic acid Chemical compound OCCS(O)(=O)=O SUMDYPCJJOFFON-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 108010020132 microbial serine proteinases Proteins 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 125000003703 phosphorus containing inorganic group Chemical group 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 159000000001 potassium salts Chemical class 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 150000004760 silicates Chemical class 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 230000003019 stabilising effect Effects 0.000 description 2
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 2
- 239000003760 tallow Substances 0.000 description 2
- 239000004711 α-olefin Substances 0.000 description 2
- YRIZYWQGELRKNT-UHFFFAOYSA-N 1,3,5-trichloro-1,3,5-triazinane-2,4,6-trione Chemical compound ClN1C(=O)N(Cl)C(=O)N(Cl)C1=O YRIZYWQGELRKNT-UHFFFAOYSA-N 0.000 description 1
- CFPOJWPDQWJEMO-UHFFFAOYSA-N 2-(1,2-dicarboxyethoxy)butanedioic acid Chemical class OC(=O)CC(C(O)=O)OC(C(O)=O)CC(O)=O CFPOJWPDQWJEMO-UHFFFAOYSA-N 0.000 description 1
- 239000004382 Amylase Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical class OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 102100023444 Centromere protein K Human genes 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 101000907931 Homo sapiens Centromere protein K Proteins 0.000 description 1
- 108090001060 Lipase Proteins 0.000 description 1
- 239000004367 Lipase Substances 0.000 description 1
- 102000004882 Lipase Human genes 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- SUZRRICLUFMAQD-UHFFFAOYSA-N N-Methyltaurine Chemical compound CNCCS(O)(=O)=O SUZRRICLUFMAQD-UHFFFAOYSA-N 0.000 description 1
- 235000019483 Peanut oil Nutrition 0.000 description 1
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical class OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- 235000019484 Rapeseed oil Nutrition 0.000 description 1
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 description 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- 239000004280 Sodium formate Substances 0.000 description 1
- 108010056079 Subtilisins Proteins 0.000 description 1
- 102000005158 Subtilisins Human genes 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical class OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 150000008041 alkali metal carbonates Chemical class 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 229940025131 amylases Drugs 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 150000001642 boronic acid derivatives Chemical class 0.000 description 1
- CMFFZBGFNICZIS-UHFFFAOYSA-N butanedioic acid;2,3-dihydroxybutanedioic acid Chemical compound OC(=O)CCC(O)=O.OC(=O)CCC(O)=O.OC(=O)C(O)C(O)C(O)=O CMFFZBGFNICZIS-UHFFFAOYSA-N 0.000 description 1
- HXDRSFFFXJISME-UHFFFAOYSA-N butanedioic acid;2,3-dihydroxybutanedioic acid Chemical compound OC(=O)CCC(O)=O.OC(=O)C(O)C(O)C(O)=O HXDRSFFFXJISME-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- LLSDKQJKOVVTOJ-UHFFFAOYSA-L calcium chloride dihydrate Chemical compound O.O.[Cl-].[Cl-].[Ca+2] LLSDKQJKOVVTOJ-UHFFFAOYSA-L 0.000 description 1
- 239000004359 castor oil Substances 0.000 description 1
- 235000019438 castor oil Nutrition 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 150000001860 citric acid derivatives Chemical class 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- PMPJQLCPEQFEJW-HPKCLRQXSA-L disodium;2-[(e)-2-[4-[4-[(e)-2-(2-sulfonatophenyl)ethenyl]phenyl]phenyl]ethenyl]benzenesulfonate Chemical compound [Na+].[Na+].[O-]S(=O)(=O)C1=CC=CC=C1\C=C\C1=CC=C(C=2C=CC(\C=C\C=3C(=CC=CC=3)S([O-])(=O)=O)=CC=2)C=C1 PMPJQLCPEQFEJW-HPKCLRQXSA-L 0.000 description 1
- VTIIJXUACCWYHX-UHFFFAOYSA-L disodium;carboxylatooxy carbonate Chemical compound [Na+].[Na+].[O-]C(=O)OOC([O-])=O VTIIJXUACCWYHX-UHFFFAOYSA-L 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000001493 electron microscopy Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000002979 fabric softener Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000007850 fluorescent dye Substances 0.000 description 1
- 150000004675 formic acid derivatives Chemical class 0.000 description 1
- 230000002070 germicidal effect Effects 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 229910052816 inorganic phosphate Inorganic materials 0.000 description 1
- 229940045996 isethionic acid Drugs 0.000 description 1
- 235000019421 lipase Nutrition 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000002535 lyotropic effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 238000001683 neutron diffraction Methods 0.000 description 1
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical class OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- MPQXHAGKBWFSNV-UHFFFAOYSA-N oxidophosphanium Chemical group [PH3]=O MPQXHAGKBWFSNV-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000003346 palm kernel oil Substances 0.000 description 1
- 235000019865 palm kernel oil Nutrition 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 239000000312 peanut oil Substances 0.000 description 1
- 150000004965 peroxy acids Chemical class 0.000 description 1
- 235000020030 perry Nutrition 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 125000005498 phthalate group Chemical group 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920005646 polycarboxylate Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 235000015497 potassium bicarbonate Nutrition 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 235000011181 potassium carbonates Nutrition 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical class [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- 235000013966 potassium salts of fatty acid Nutrition 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- WBHHMMIMDMUBKC-XLNAKTSKSA-N ricinelaidic acid Chemical compound CCCCCC[C@@H](O)C\C=C\CCCCCCCC(O)=O WBHHMMIMDMUBKC-XLNAKTSKSA-N 0.000 description 1
- 229960003656 ricinoleic acid Drugs 0.000 description 1
- FEUQNCSVHBHROZ-UHFFFAOYSA-N ricinoleic acid Natural products CCCCCCC(O[Si](C)(C)C)CC=CCCCCCCCC(=O)OC FEUQNCSVHBHROZ-UHFFFAOYSA-N 0.000 description 1
- 239000003352 sequestering agent Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 description 1
- 235000019254 sodium formate Nutrition 0.000 description 1
- 239000004289 sodium hydrogen sulphite Substances 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 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
- 229940045872 sodium percarbonate Drugs 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 235000013875 sodium salts of fatty acid Nutrition 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- MWNQXXOSWHCCOZ-UHFFFAOYSA-L sodium;oxido carbonate Chemical compound [Na+].[O-]OC([O-])=O MWNQXXOSWHCCOZ-UHFFFAOYSA-L 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 229950009390 symclosene Drugs 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 150000004685 tetrahydrates Chemical class 0.000 description 1
- 238000005406 washing 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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/39—Organic or inorganic per-compounds
- C11D3/3947—Liquid compositions
-
- 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
- C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
- C11D17/0026—Structured liquid compositions, e.g. liquid crystalline phases or network containing non-Newtonian phase
-
- 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
- C11D3/18—Hydrocarbons
-
- 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
- C11D3/20—Organic compounds containing oxygen
- C11D3/2003—Alcohols; Phenols
-
- 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
- C11D3/34—Organic compounds containing sulfur
- C11D3/3418—Toluene -, xylene -, cumene -, benzene - or naphthalene sulfonates or sulfates
Definitions
- the present invention is concerned with aqueous liquid detergent compositions which contain sufficient detergent-active material and, optionally, sufficiently dissolved electrolyte to result in a structure of lamellar droplets dispersed in a continuous aqueous phase.
- Lamellar droplets are a particular class of surfactant structures which, inter alia, are already known from a variety of references, e.g. H.A.Barnes, 'Detergents', Ch.2. in K.Walters (Ed), 'Rheometry: Industrial Applications', J. Wiley & Sons, Letchworth 1980, FR-A-2426731, GB-A-2023637, GB-A-2031941 and EP-A-301884.
- Such lamellar dispersions are used to endow properties such as consumer-preferred flow behaviour and/or turbid appearance. Many are also capable of suspending particulate solids such as detergency builders or abrasive particles. Examples of such structured liquids without suspended solids are given in US patent 4 244 840, whilst examples where solid particles are suspended are disclosed in specifications EP-A-160 342; EP-A-38 101; EP-A-104 452 and also in the aforementioned US patent 4 244 840. Others are disclosed in European Patent Specification EP-A-151 884, where the lamellar droplet are called 'spherulites'.
- lamellar droplets in a liquid detergent product may be detected by means known to those skilled in the art, for example optical techniques, various rheometrical measurements, X-ray or neutron diffraction, and electron microscopy.
- Non pre-published EP-A-346 995 describes structured liquids comprising a deflocculating polymer.
- Formulation 12 comprises also triethanolamine.
- Non pre-published EP-A-415 698 describes structured fabric softening liquids comprising a deflocculating polymer. These compositions have a pH of less than 6.0 and an electrolyte/isopropanol ratio lower than 1:1.
- the droplets consist of an onion-like configuration of concentric bi-layers of surfactant molecules, between which is trapped water or electrolyte solution (aqueous phase). Systems in which such droplets are close-packed provide a very desirable combination of physical stability and solid-suspending properties with useful flow properties.
- the viscosity and stability of the product depend on the volume fraction of the liquid which is occupied by the droplets. Generally speaking, when the volume fraction is around 0.6, the droplets are just touching (space-filling). This allows reasonable stability with an acceptable viscosity (say no more than 2.5 Pas, preferably no more than 2.0 Pas, more preferably no more than 1 Pas at a shear rate of 21s -1 ). This volume fraction also endows useful solid-suspending properties.
- a problem in the formulation of liquid detergent compositions is to have a relatively high volume fraction of lamellar droplets without the occurence of flocculation of the droplets.
- flocculation occurs between the lamellar droplets at a given volume fraction, the viscosity of the corresponding product will increase due to the formation of a network throughout the liquid.
- Flocculation may also lead to instability reflected in phase separation of the product.
- a second aspect of the present invention is the discovery that low levels of hydrotroping agents can be used for the stabilisation of active structured liquid detergent compositions.
- hydrotroping materials may for example be included for providing secondary benefits, for example anti-wrinkling properties or perfume benefits or for providing other benefits such as a decrease in solubility of certain ingredients which may be prone to decomposition in solubilised form.
- hydrotroping materials tend to "dissolve" the detergent active materials from the lamellar droplets into the aqueous phase, therewith possibly reducing the physical stability and/or solid suspending properties.
- the present invention relates to a physically stable liquid detergent composition
- a physically stable liquid detergent composition comprising a dispersion of lamellar droplets of detergent active materials in an aqueous continuous phase, with solid-suspending properties, said composition comprising a salting-out electrolyte and from 0.05 to 20 % by weight of a hydrotroping material, other than glycerol and triethanolamine, the weight ratio of salting out electrolyte to hydrotrope being from 20:1 to 1:1, said composition providing a pH within the range of 7.5 to 12.5.
- compositions of the invention are physically stable. Furthermore compositions according to the invention which contain low levels of hydrotroping materials are preferably physically unstable in the absence of hydrotropes.
- physical stability for these systems can be defined in terms of the maximum separation compatible with most manufacturing and retail requirements. That is, the 'stable' compositions will yield no more than 2% by volume phase separation as evidenced by appearance of 2 or more separate phases when stored at 25°C for 21 days from the time of preparation.
- Liquid detergent compositions according to the invention are preferably volume stable in that they show less than 25 %, preferably less than 10 %, more preferably less than 5 % volume increase during storage at a temperature between 20 and 37°C for a period for three months after preparation.
- a hydrotroping material is a component, which, when added to a standard lamellar droplet type liquid detergent compositions, in a large amount (say 5% by weight) without the addition of an effective amount of salting-out electrolyte, destabilises the dispersed lamellar phase, therewith causing the -at least partly- breaking down of this phase into an L 2 , active rich L 1 or isotropic micellar structure.
- L 2 and L 1 phases are for example described by G.J.T. Tiddy, in Physical Reports 57, No 1 (1980) 1-46.
- micellar structure may in some instances be evidenced by the forming of a separate isotropic phase; also possible is that the micellar structure is present in the continuous aqueous base of the product, then the presence may be evidenced by the fact that the aqueous phase -when isolated-contains more than 1% by weight of surfactant materials.
- the preferred standard composition for distinguishing between hydrotroping materials and non-hydrotroping materials has the following formulation: Ingredient wt parts Na Las 28 Synperonic A7 12 Na-Citrate 5-10 Water 60
- the level of Na-Citrate in the standard composition is at least 5 parts by weight, more preferably however the level of Na-Citrate is 10 parts by weight.
- Suitable hydrotroping materials for use in compositions of the present invention may for example be selected from the class of hydrotroping materials which have hitherto been suggested for use in isotropic detergent compositions. Examples of suitable materials are:
- hydrotroping agents may be used.
- glycerol is not a hydrotroping agent.
- Preferred hydrotroping materials are the lower alcohols such as ethanol.
- the level of hydrotroping material in compositions of the present invention can be varied as described hereinbefore within a range of from 0.5 - 200% by weight.
- the preferred levels of hydrotroping materials are in the range from 0.05 to 4.0 % by weight of the composition, more preferably up to 1.0 %.
- the preferred level of hydrotroping materials is at least 1.0 % by weight, more preferably at least 4.0%.
- compositions of the invention also comprise detergent active materials, preferably at a level of from 1 to 70% by weight of the composition, more preferably from 5 to 50 % by weight, most preferably from 10 to 40 % by weight.
- the detergent-active material in general may comprise one or more surfactants, and may be selected from anionic, cationic, nonionic, zwitterionic and amphoteric species, and (provided mutually compatible) mixtures thereof.
- surfactants may be chosen from any of the classes, subclasses and specific materials described in 'Surface Active Agents' Vol.1, by Schwartz & Perry, Interscience 1949 and 'Surface Active Agents' Vol.II by Schwartz, Perry & Berch (Interscience 1958), in the current edition of "McCutcheon's Emulsifiers & Detergents" published by the McCutcheon division of Manufacturing Confectioners Company or in 'Tensid-Taschenbuch', H.Stache, 2nd Edn., Carl Hanser Verlag, München & Wien, 1981.
- Suitable nonionic surfactants 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, either alone or with propylene oxide.
- Specific nonionic detergent compounds are alkyl (C 6 -C 18 ) primary or secondary linear or branched alcohols with ethylene oxide, and products made by condensation of ethylene oxide with the reaction products of propylene oxide and ethylenediamine.
- Other so-called nonionic detergent compounds include long chain tertiary amine oxides, long-chain tertiary phosphine oxides and dialkyl sulphoxides.
- salting-out resistant active materials such as for example described in EP-A-328 177, especially the use of alkyl polyglycoside surfactants, such as for example disclosed in EP-A-70 074.
- the level of nonionic surfactants is more than 1 % of the composition, more preferably from 2.0 to 20.0% by weight of the composition, most preferably from 3.0 to 6.0 %.
- Especially preferred nonionic materials for use in compositions of the present invention are ethoxylated alcohols comprising from 2 to 10 EO groups.
- Advantageous materials are for instance Synperonic A7, Synperonic AS and Synperonic A3 (ex ICI) or mixtures thereof.
- compositions of the present invention preferably contain anionic surfactant ingredients, which are preferably present in combination with the above mentioned nonionic materials.
- Suitable anionic surfactants are usually water-soluble alkali metal salts of organic sulphates and sulphonates having alkyl radicals containing from 8 to 22 carbon atoms, the term alkyl being used to include the alkyl portion of higher acyl radicals.
- suitable synthetic anionic detergent compounds are sodium and potassium alkyl sulphates, especially those obtained by sulphating higher (C 8 -C 18 ) alcohols produced, for example, from tallow or coconut oil, sodium and potassium alkyl (C 9 -C 20 ) benzene sulphonates, particularly sodium linear secondary alkyl (C 10 -C 15 ) benzene sulphonates; sodium alkyl glyceryl ether sulphates, especially those ethers of the higher alcohols derived from tallow or coconut oil and synthetic alcohols derived from petroleum; sodium coconut oil fatty monoglyceride sulphates and sulphonates; sodium and potassium salts of sulphuric acid esters of higher (C 8 -C 18 ) fatty alcohol-alkylene oxide, particularly ethylene oxide, reaction products; the reaction products of fatty acids such as coconut fatty acids esterified with isethionic acid and neutralized with sodium hydroxide; sodium and potassium salts of fatty acid amides of
- an alkali metal soap of a mono- or di-carboxylic acid especially a soap of an acid having from 12 to 18 carbon atoms, for example oleic acid, ricinoleic acid, and fatty acids derived from castor oil, rapeseed oil, groundnut oil, coconut oil, palmkernel oil or mixtures thereof.
- the sodium or potassium soaps of these acids can be used.
- compositions also contain a salting-out electrolyte.
- the salting-out electrolyte is present in an effective amount.
- This effective amount can be determined by adjusting the amount of electrolyte while keeping the relative amounts of the other ingredients constant.
- the level of electrolyte is chosen such that after centrifuging the composition for 17 h at 750 G the level of surfactant in the aqueous phase is less than 5% by weight, more preferably less than 2%, most preferably less than 1%.
- the level of salting-out electrolytes is preferably from 1 to 50 % by weight. More preferably the level of salting-out electrolytes is from 5 to 45%, most preferably from 10 to 35 % by weight.
- Salting-out electrolyte has the meaning ascribed to in specification EP-A-79 646, that is those materials having a lyotropic number of less than 9.5. Optionally, some salting-in electrolyte (as defined in the latter specification) may also be included.
- Preferred salting-out electrolytes are for example citrates, borates, formates and tripolyphosphates.
- Preferred salting-in electrolytes are NaCI and No-acetate.
- compositions according to the present invention include detergency builder material, some or all of which may be electrolyte.
- Examples of phosphorus-containing inorganic detergency builders include the water-soluble salts, especially alkali metalpyrophosphates, orthophosphates, polyphosphates and phosphonates.
- Specific examples of inorganic phosphate builders include sodium and potassium tripolyphosphates, phosphates and hexametaphosphates. Phosphonate sequestrant builders may also be used.
- non-phosphorus-containing inorganic detergency builders when present, include water-soluble alkali metal carbonates, bicarbonates, silicates and crystalline and amorphous aluminosilicates. Specific examples include sodium carbonate (with or without calcite seeds), potassium carbonate, sodium and potassium bicarbonates, silicates and zeolites.
- the stabilising effect of the hydrotroping agent is especially noticeable in compositions containing zeolite builders, especially in compositions containing high levels of zeolite builders, for example of from 10 to 30 % by weight of the compositions, more preferred from 15 to 20%.
- electrolytes which promote the solubility of other electrolytes, for example use of potassium salts to promote the solubility of sodium salts.
- electrolytes which promote the solubility of other electrolytes
- potassium salts to promote the solubility of sodium salts.
- organic detergency builders when present, include the alkaline metal, ammonium and substituted ammonium polyacetates, carboxylates, polycarboxylates, polyacetyl carboxylates and polyhydroxysulphonates. Specific examples include sodium, potassium, lithium, ammonium and substituted ammonium salts of ethylenediaminetetraacetic acid, nitrilotriacetic acid, oxydisuccinic acid, melitic acid, benzene polycarboxylic acids, tartrate mono succinate, tartrate disuccinate and citric acid.
- compositions of the present invention alternatively, or in addition to the partly dissolved polymer, yet another polymer which is substantially totally soluble in the aqueous phase and has an electrolyte resistance of more than 5 grams sodium nitrilotriacetate in 100ml of a 5% by weight aqueous solution of the polymer, said second polymer also having a vapour pressure in 20% aqueous solution, equal to or less than the vapour pressure of a reference 2% by weight or greater aqueous solution of polyethylene glycol having an average molecular weight of 6000; said second polymer having a molecular weight of at least 1000.
- Use of such polymers is generally described in our EP 301,883. Typical levels are from 0.5 to 4.5% by weight.
- compositions according to the present is preferably less than 2500 mPas, especially preferred less than 2000 mPas, more preferred less than 1500 mPas, most preferred between 30 and 1000 mPas at 21 s -1 .
- One way of regulating the viscosity and stability of compositions according to the present invention is to include viscosity regulating polymeric materials.
- Viscosity and/or stability regulating polymers which are preferred for incorporation in compositions according to the invention include deflocculating polymers having a hydrophilic backbone and at least one hydrophobic side chain. Such polymers are for instance described in our copending European application 89201530.6. (EP-A-346 995).
- compositions of the invention have solid suspending properties, preferably they do not yield any visible sedimentation after storage for 3 weeks at 21°C when 10% of a solid particulate material e.g. calcite or zeolite is incorporated.
- a solid particulate material e.g. calcite or zeolite
- compositions of the invention preferably contain from 10-80% by weight of water, more preferably 15-60%, most preferably 20-50%.
- lather boosters such as alkanolamides, particularly the monoethanolamides derived from palm kernel fatty acids and coconut fatty acids, fabric softeners such as clays, amines and amine oxides, lather depressants, oxygen-releasing bleaching agents such as sodium perborate and sodium percarbonate, peracid bleach precursors, chlorine-releasing bleaching agents such as trichloroisocyanuric acid, inorganic salts such as sodium sulphate, and, usually present in very minor amounts, fluorescent agents, perfumes, enzymes such as proteases, amylases and lipases (including Lipolase (Trade Mark) ex Novo), germicides and colourants.
- lather boosters such as alkanolamides, particularly the monoethanolamides derived from palm kernel fatty acids and coconut fatty acids
- fabric softeners such as clays, amines and amine oxides
- lather depressants oxygen-releasing bleaching agents such as sodium perborate and sodium percarbonate, peracid bleach precursor
- An especially preferred embodiment of the present invention relates to the combined use of bleach ingredients and hydrotroping materials in liquid detergent compositions of the lamellar droplet type.
- the use of relatively high levels of hydrotroping materials enhances the stability of the bleach ingredient, especially when partially insoluble bleaches such as sodium perborate are used.
- the level of bleach material, especially of peroxygen bleach material, more preferably of perborate or percarbonate bleach material is from 1- 25 % by weight of the composition, more preferred from 3- 20 %, most preferred from 5 - 15 %.
- compositions comprise salting-out electrolyte, water and hydrotrope, wherein the weight ratio of water to hydrotrope is between 20:1 and 1:1, more preferably between 10:1 and 3:1.
- the weight ratio of salting-out electrolyte to hydrotrope is from 20:1 to 1:1, preferably from 10:1 to 2:1, more preferably from 8:1 to 4:1.
- the weight ratio of water to electrolyte is preferably from 10:1 to 1:1, more preferably 8:1 to 2:1, most preferably 6:1 to 4:1.
- compositions of the invention may be prepared by any conventional method for the preparation of liquid detergent compositions.
- a preferred method involves the dispersing of the electrolyte ingredient together with the minor ingredients except for the temperature sensitive ingredients -if any- in water of elevated temperature, followed by the addition of the builder material, the hydrotroping material and the detergent active material under light stirring and finally cooling the mixture and adding any temperature sensitive minor ingredients such as enzymes, perfumes etc.
- the detergent compositions of the invention will be diluted with wash water to form a wash liquor for instance for use in a washing machine.
- concentration of liquid detergent composition in the wash liquor is preferably from 0.1 to 10 %, more preferred from 0.1 to 3% by weight.
- the liquid detergent compositions should be alkaline, and it is preferred that they should provide a pH within the range of 8.5 to 12, preferably 9 to 11, when used in aqueous solutions of the composition at the recommended concentration.
- the undiluted liquid composition should also be of a pH above 7, for example pH 7.5 to 12.5. It should be noted that an excessively high pH, e.g. over pH 13, is less desirable for domestic safety. If hydrogen peroxide is present in the liquid composition, then the pH is generally from 7.5 to 10.5, preferably 8 to 10, and especially 8.5 to 10, to ensure the combined effect of good detergency and good physical and chemical stability.
- any such highly alkaline detergent composition should, of course, be chosen for alkaline stability, especially for pH-sensitive materials such as enzymes, and a particularly suitable proteolytic enzyme.
- the pH may be adjusted by addition of a suitable alkaline material.
- Liquid detergent compositions of the following formulation were prepared by heating the water to 50°C and mixing the fluorescer, the calcium chloride, Dequest, silicone, glycerol, borax and the hydroxide into the liquid, followed by the addition of the zeolite material and the SXS material. A premix of the ABS material and the Synperonic material is added to the system under stirring. The pH of the product is adjusted to about 7.5. Finally the product is cooled to ambient temperature and the remaining ingredients are added and the product is stored for three weeks at 25°C.
- compositions A and B were both lamellar structured liquid detergent compositions having solid suspending properties.
- Composition A outside the scope of the present invention, had direct after preparation a viscosity of 1270 mPas at 21 s -1 . After three weeks storage at 25 C the compositions showed 10 % by volume phase separation.
- Composition B according to the invention had an initial viscosity of 890 mPas at 21 s -1 and showed no visible phase separation after storage for three weeks at 25°C.
- compositions were prepared as in Example 1.
- compositions were stable liquid detergents having a lamellar structure.
- the corresponding compositions minus the hydrotroping material were physically unstable (some phase separation upon storage).
- compositions were made by adding the ingredients in the listed order to water under stirring.
- Ingredient (% wt) 1 2 Na LAS 28 28 Synperonic A7 12 12 Na-citrate 10 10 borax 3.5 3.5 Glycerol 5 5 monoethanolamine 2 4 triethanolamine 2 4 savinase 0.3 0.3 Tinopal CBS-X 0.1 0.1 polymer 1 1 water ⁇ ----balance----> stable ? yes yes Isotropic active rich phase present ? no no no
- compositions were prepared by adding the electrolyte together with the minor ingredients except for the perfume and the enzymes to water of elevated temperature, followed by the addition of the detergent active material as a premix under stirring and thereafter cooling the mixture and adding the enzymes, perfumes and the bleach.
- the obtained products had the following characteristics: A B Volume stability (% volume increase, 3 months 25 °C) 0 0 clear layer separation (3 weeks 37 °C) no no solid sedimentation (3 weeks 37 °C) no no Viscosity 21 s -1 800 850 dissolved perborates 1.5 3 bleach activity (2 months ambient T) 98 98 enzyme activity (2 months ambient T) 83 70
- a composition as described in example IX of EP-A-293 040 was prepared by adding the following ingredients in the order listed under stirring: Ingredient % wt Water 32 Ethanol 5 butyldiglycolether 5 Linear DOBS 13 Nonionic 3.5 Sodium cocoylsulfate 3.0 coconut fatty acid 1 oleic acid 2 EDTA 1 STP 15 sodium perborate.H 2 O 13 sodium formate 1 protease 0.5 sodium hydroxide to pH 11 perfume/minors balance
- compositions as disclosed in EP-A-293 040 are difficult to reproduce and suffer from an unacceptable high viscosity and/or volume instability and/or physical instability.
- a composition according to example 70 of US-A-4,618,446 was prepared by adding the NaOH to the water at ambient temperature, followed by the addition of the surfactants, the remaining electrolytes and the remaining ingredients.
- 8EO 3.1 C 16-18 phosphate 1.7 oleic acid 9.1 sodium hydroxide 0.9 SXS 0.5 water balance
- composition was prepared wherein the SXS was omitted. Both compositions were stored for 21 and 42 days at 25°C.
- composition without the SXS ingredient was physically stable (no phase separation after storage), the composition with SXS was physically stable after 21 days of storage, but unstable after 6 weeks.
- the viscosity of the composition without SXS was 2,750 mPas at 21 s -1 , the viscosity of the composition with SXS was 3,800 mPas.
- compositions as disclosed in US-A-4,618,446 do not comprise SXS as a stabiliser; furthermore compositions according to this patent appear of high viscosity.
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Abstract
Description
Ingredient | wt parts |
Na Las | 28 |
Synperonic A7 | 12 |
Na-Citrate | 5-10 |
Water | 60 |
Ingredient % wt | formulation | |
A | B | |
ABS | 7.2 | 7.2 |
Synperonic 7EO | 4.8 | 4.8 |
Zeolite | 20.0 | 20.0 |
Sokolan CPT | 2.5 | 2.5 |
polyacrylate PA 50 | 0.2 | 0.2 |
Glycerol | 8.0 | 8.0 |
Borax | 5.7 | 5.7 |
CaCl2 | 0.15 | 0.15 |
enzymes | 0.48 | 0.48 |
Dequest 2060S | 0.6 | 0.6 |
fluorescer | 0.05 | 0.05 |
Silicone Q2 3300 | 0.35 | 0.35 |
NaOH | 2.0 | 2.0 |
Perfume | 0.3 | 0.3 |
SXS | --- | 0.4 |
Ingredient | % wt | |
Tap water | Balance | |
fluorescer | 0.05 | 0.05 |
Ca chloride | 0.3 | 0.3 |
Sodium hydroxide | 3.7 | 3.7 |
Citric acid 1aq | 2.5 | 2.5 |
Dequest 2060 S | 1.2 | 1.2 |
Glycerol | 5.0 | 6.5 |
Borax | 4.0 | 4.0 |
Silicone Q 23300 | 0.35 | 0.35 |
Zeolite (wessalith P) | 25.0 | 25.0 |
SXS | 0.45 | 0.9 |
ABS | 7.0 | 7.0 |
Synperonic 3EO | 1.2 | 1.2 |
Synperonic 7EO | 3.6 | 3.6 |
Savinase | 0.5 | 0.3 |
Amylase | 0.2 | 0.2 |
Perfume | 0.3 | 0.3 |
Sokalan PA50 | 0.3 | 0.5 |
Component | Composition (in parts by weight) | |||
1 | 2 | 3 | 4 | |
ABS | <-------------28--------------> | |||
Synperionic A7 | <-------------12--------------> | |||
Water | <-------------60--------------> | |||
Na-citrate | <-------------10--------------> | |||
Ethanol physical Stability | 0 unstable | 2.5 stable | 5.0 unstable | 10 unstable |
Ingredient (wt parts) | A | B | 1 | 2 |
Na LAS | 28 | 28 | 28 | 28 |
Synperonic A7 | 12 | 12 | 12 | 12 |
water | 60 | 60 | 60 | 60 |
Na-citrate | 10 | 10 | 20 | 20 |
polymer | - | - | 1 | 1 |
ethanol | - | 5 | 5 | 10 |
physically stable ? | just unstable | no | yes | just stable |
Isotropic active rich phase present? | no | yes | no | no |
Ingredient (% wt) | 1 | 2 |
Na LAS | 28 | 28 |
Synperonic A7 | 12 | 12 |
Na-citrate | 10 | 10 |
borax | 3.5 | 3.5 |
Glycerol | 5 | 5 |
monoethanolamine | 2 | 4 |
triethanolamine | 2 | 4 |
savinase | 0.3 | 0.3 |
Tinopal CBS-X | 0.1 | 0.1 |
polymer | 1 | 1 |
water | <----balance----> | |
stable ? | yes | yes |
Isotropic active rich phase present ? | no | no |
INGREDIENT (% WT) | A | B |
Na-Dobs | 21 | 21 |
Synperonic 7 | 9 | 9 |
Glycerol | -- | 3.5 |
Metaborate | 2.6 | 2.6 |
Nacitrate/ Citric acid | 9.8 | 9.8 |
Dequest 2060S (as 100%) | 0.4 | 0.4 |
Na-perborate tetrahydrate | 20 | 20 |
Enzyme, Alcalase | 0.8 | 0.8 |
CaCl2.2H2O | 0.2 | 0.2 |
Fluorescer, Tinopal CBSX | 0.1 | 0.1 |
Silicon, Dow Corning DB100 | 0.3 | 0.3 |
Perfume | 0.3 | 0.3 |
deflocculating polymer | 1 | 1 |
ethanol | 2.5 | 2.5 |
water | balance | |
pH | 9 | 9 |
A | B | |
Volume stability (% volume increase, 3 months 25 °C) | 0 | 0 |
clear layer separation (3 weeks 37 °C) | no | no |
solid sedimentation (3 weeks 37 °C) | no | no |
Viscosity 21 s-1 | 800 | 850 |
dissolved perborates | 1.5 | 3 |
bleach activity (2 months ambient T) | 98 | 98 |
enzyme activity (2 months ambient T) | 83 | 70 |
Ingredient | % wt |
Water | 32 |
Ethanol | 5 |
butyldiglycolether | 5 |
Linear DOBS | 13 |
Nonionic | 3.5 |
Sodium cocoylsulfate | 3.0 |
coconut fatty acid | 1 |
oleic acid | 2 |
EDTA | 1 |
STP | 15 |
sodium perborate.H2O | 13 |
sodium formate | 1 |
protease | 0.5 |
sodium hydroxide to pH | 11 |
perfume/minors | balance |
Ingredient | % wt |
coconut diethanolamide | 3.3 |
sodium carbonate | 2.4 |
STP | 14.8 |
Zeolite A | 9.9 |
Optical brighteners | 0.16 |
C12-18. 8EO | 3.1 |
C16-18 phosphate | 1.7 |
oleic acid | 9.1 |
sodium hydroxide | 0.9 |
SXS | 0.5 |
water | balance |
Claims (5)
- A physically stable liquid detergent composition comprising a dispersion of lamellar droplets of detergent active materials in an aqueous continuous phase, with solid-suspending properties said composition comprising a salting-out electrolyte and from 0.05 to 20 % by weight of a hydrotroping material, other than glycerol and triethanolamine, the weight ratio of salting-out electrolyte to hydrotrope being from 20:1 to 1:1, said composition providing a pH within the range of 7.5 to 12.5.
- A liquid detergent composition according to claim 1 comprising from 1 to 35 % of a salting-out electrolyte and at least 1.0 % by weight of a hydrotropic material.
- Composition according to claims 1-2. wherein the hydrotroping material is selected from the group of:(i) alkali metal aryl sulphonates. selected from sodium xylene sulphonate, sodium toluene sulphonate, sodium cumene sulphonate, sodium tetralin sulphonate, sodium naphtalene sulphonate. and the short chain alkyl derivatives thereof;(ii) mono- and dihydric alcohols and derivatives thereof, selected from lower alcohols such as ethanol. isopropanol, propyleneglycol and ethylene glycol, monoethanolamine and 1,2 propylene glycol dibutyl ether, and higher alcohols having 3-10 carbon atoms, wherein the carbon chain length is at least 4 carbon atoms shorter than the average chain length of the hydrocarbyl chain of the surfactant materials used in the composition;(iii) hydrocarbons materials, selected from C8-C12 paraffins, wherein the hydrocarbon chain of the hydrocarbon chain is at least 2 carbon atoms shorter than the average chain length of the hydrocarbyl chain of the surfactants used in the composition; and(iv) organic solvent materials, selected from limonene, linalool, benzyl alcohol, diglyme, dibutyl phthalate and terpene;
- The use of from 0.05 to 20 % by weight based on the total composition, of a hydrotroping material, other than glycerol, as a stabiliser for liquid detergent compositions comprising a dispersion of lamellar droplets of detergent active materials in an aqueous continuous phase and a salting-out electrolyte.
- Use according to claim 4, wherein the hydrotroping material is selected from the group of:(i) alkali metal aryl sulphonates, selected from sodium xylene sulphonate, sodium toluene sulphonate, sodium cumene sulphonate, sodium tetralin sulphonate, sodium naphtalene sulphonate, and the short chain alkyl derivatives thereof;(ii) mono- and dihydric alcohols and derivatives thereof. selected from lower alcohols such as ethanol, isopropanol, propyleneglycol and ethylene glycol, monoethanolamine, triethanolamine and 1,2 propylene glycol dibutyl ether, and higher alcohols having 3-10 carbon atoms, wherein the carbon chain length is at least 4 carbon atoms shorter than the average chain length of the hydrocarbyl chain of the surfactant materials used in the composition;(iii) hydrocarbons materials, selected from C8-C12 paraffins, wherein the hydrocarbon chain of the hydrocarbon chain is at least 2 carbon atoms shorter than the average chain length of the hydrocarbyl chain of the surfactants used in the composition; and(iv) organic solvent materials, selected from limonene, linalool, benzyl alcohol, diglyme, dibutyl phthalate and terpene;
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP90912561A EP0491723B2 (en) | 1989-09-13 | 1990-08-28 | Liquid detergents |
Applications Claiming Priority (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8920716A GB8920716D0 (en) | 1989-09-13 | 1989-09-13 | Liquid detergents |
GB8920716 | 1989-09-13 | ||
EP90200290A EP0385522B1 (en) | 1989-02-27 | 1990-02-08 | Liquid detergent composition |
EP90200290 | 1990-02-08 | ||
EP90201701 | 1990-06-27 | ||
EP90201701 | 1990-06-27 | ||
PCT/EP1990/001046 WO1991000902A1 (en) | 1989-07-13 | 1990-06-27 | Liquid bleach composition |
WOPCT/EP90/01046 | 1990-06-27 | ||
PCT/EP1990/001461 WO1991004314A1 (en) | 1989-09-13 | 1990-08-28 | Liquid detergents |
EP90912561A EP0491723B2 (en) | 1989-09-13 | 1990-08-28 | Liquid detergents |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0491723A1 EP0491723A1 (en) | 1992-07-01 |
EP0491723B1 EP0491723B1 (en) | 1994-11-17 |
EP0491723B2 true EP0491723B2 (en) | 1998-12-23 |
Family
ID=27233406
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90912561A Expired - Lifetime EP0491723B2 (en) | 1989-09-13 | 1990-08-28 | Liquid detergents |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0491723B2 (en) |
JP (1) | JPH0774360B2 (en) |
KR (1) | KR960004489B1 (en) |
AU (1) | AU647039B2 (en) |
BR (1) | BR9007641A (en) |
DE (1) | DE69014207T3 (en) |
ES (1) | ES2066216T5 (en) |
TR (1) | TR27315A (en) |
WO (1) | WO1991004314A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996033258A1 (en) * | 1995-04-20 | 1996-10-24 | Albright & Wilson Uk Limited | Stabilised aqueous suspensions of bleach containing perborate particles |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1569617A (en) * | 1976-03-08 | 1980-06-18 | Procter & Gamble | Liquid detergent composition |
ES475852A1 (en) * | 1977-12-09 | 1980-03-01 | Albright & Wilson | Preparation of concentrated aqueous suractant composition |
GB2021141B (en) * | 1977-12-09 | 1982-06-16 | Albright & Wilson | Concentrated aqueous surfactant compositions |
GB2031941B (en) * | 1978-02-07 | 1982-06-30 | Albright & Wilson | Concentrated aqueous surfactant compositions |
DE2921366A1 (en) * | 1978-05-26 | 1979-12-06 | Albright & Wilson | CONCENTRATED Aqueous SURFACE PREPARATION |
GB2023637B (en) * | 1978-05-26 | 1982-06-23 | Albright & Wilson | Concentrated aqueous surfactant compositions |
FR2521135B1 (en) * | 1982-02-05 | 1986-05-09 | Oreal | POLYANIONIC COMPOUNDS, PROCESS FOR THE PREPARATION THEREOF, AND COMPOSITIONS CONTAINING THEM |
GB8334250D0 (en) * | 1983-12-22 | 1984-02-01 | Albright & Wilson | Liquid detergent compositions |
GB8713574D0 (en) * | 1987-06-10 | 1987-07-15 | Albright & Wilson | Liquid detergent compositions |
GB8718215D0 (en) * | 1987-07-31 | 1987-09-09 | Unilever Plc | Liquid detergent compositions |
GB8718217D0 (en) * | 1987-07-31 | 1987-09-09 | Unilever Plc | Liquid detergent compositions |
-
1990
- 1990-08-28 DE DE69014207T patent/DE69014207T3/en not_active Expired - Fee Related
- 1990-08-28 AU AU61779/90A patent/AU647039B2/en not_active Ceased
- 1990-08-28 KR KR1019920700570A patent/KR960004489B1/en not_active IP Right Cessation
- 1990-08-28 JP JP2511763A patent/JPH0774360B2/en not_active Expired - Lifetime
- 1990-08-28 WO PCT/EP1990/001461 patent/WO1991004314A1/en active IP Right Grant
- 1990-08-28 BR BR909007641A patent/BR9007641A/en not_active IP Right Cessation
- 1990-08-28 EP EP90912561A patent/EP0491723B2/en not_active Expired - Lifetime
- 1990-08-28 ES ES90912561T patent/ES2066216T5/en not_active Expired - Lifetime
- 1990-09-10 TR TR00783/90A patent/TR27315A/en unknown
Also Published As
Publication number | Publication date |
---|---|
EP0491723B1 (en) | 1994-11-17 |
KR960004489B1 (en) | 1996-04-06 |
EP0491723A1 (en) | 1992-07-01 |
BR9007641A (en) | 1992-07-07 |
DE69014207D1 (en) | 1994-12-22 |
AU6177990A (en) | 1991-04-18 |
JPH0774360B2 (en) | 1995-08-09 |
WO1991004314A1 (en) | 1991-04-04 |
ES2066216T5 (en) | 1999-04-01 |
ES2066216T3 (en) | 1995-03-01 |
JPH05500075A (en) | 1993-01-14 |
AU647039B2 (en) | 1994-03-17 |
DE69014207T2 (en) | 1995-03-23 |
TR27315A (en) | 1995-01-12 |
DE69014207T3 (en) | 1999-03-18 |
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