CA2266353A1 - Antimicrobial cleaning compositions - Google Patents
Antimicrobial cleaning compositions Download PDFInfo
- Publication number
- CA2266353A1 CA2266353A1 CA002266353A CA2266353A CA2266353A1 CA 2266353 A1 CA2266353 A1 CA 2266353A1 CA 002266353 A CA002266353 A CA 002266353A CA 2266353 A CA2266353 A CA 2266353A CA 2266353 A1 CA2266353 A1 CA 2266353A1
- Authority
- CA
- Canada
- Prior art keywords
- nonionic surfactant
- ethoxylated
- general formula
- product
- polymer
- 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.)
- Abandoned
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 76
- 238000004140 cleaning Methods 0.000 title claims abstract description 11
- 230000000845 anti-microbial effect Effects 0.000 title description 4
- 239000002736 nonionic surfactant Substances 0.000 claims abstract description 31
- 229920000642 polymer Polymers 0.000 claims abstract description 26
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 24
- 239000000194 fatty acid Substances 0.000 claims abstract description 24
- 229930195729 fatty acid Natural products 0.000 claims abstract description 24
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 24
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 23
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 21
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 21
- 239000004094 surface-active agent Substances 0.000 claims abstract description 15
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003945 anionic surfactant Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 8
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229920006318 anionic polymer Polymers 0.000 claims abstract description 6
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 6
- 125000005037 alkyl phenyl group Chemical group 0.000 claims abstract description 3
- 150000001298 alcohols Chemical class 0.000 claims description 16
- 239000003752 hydrotrope Substances 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 238000007046 ethoxylation reaction Methods 0.000 claims description 7
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 6
- 229920001577 copolymer Polymers 0.000 claims description 6
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 4
- 229910052783 alkali metal Inorganic materials 0.000 claims description 4
- 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 4
- 239000005977 Ethylene Substances 0.000 claims description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 3
- 150000001340 alkali metals Chemical class 0.000 claims description 3
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 3
- XJRBAMWJDBPFIM-UHFFFAOYSA-N methyl vinyl ether Chemical compound COC=C XJRBAMWJDBPFIM-UHFFFAOYSA-N 0.000 claims description 3
- 239000000178 monomer Substances 0.000 claims description 3
- 150000004671 saturated fatty acids Chemical class 0.000 claims description 3
- 229920002125 Sokalan® Polymers 0.000 claims description 2
- 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 2
- 229920000141 poly(maleic anhydride) Polymers 0.000 claims description 2
- 239000004584 polyacrylic acid Substances 0.000 claims description 2
- 239000000047 product Substances 0.000 description 30
- 239000006260 foam Substances 0.000 description 7
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical group C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 230000008901 benefit Effects 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical group OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 6
- 125000000129 anionic group Chemical group 0.000 description 5
- 239000004599 antimicrobial Substances 0.000 description 5
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 5
- KWIUHFFTVRNATP-UHFFFAOYSA-N Betaine Natural products C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 4
- KWIUHFFTVRNATP-UHFFFAOYSA-O N,N,N-trimethylglycinium Chemical compound C[N+](C)(C)CC(O)=O KWIUHFFTVRNATP-UHFFFAOYSA-O 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 229960003237 betaine Drugs 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- -1 polyoxyethylene Polymers 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002280 amphoteric surfactant Substances 0.000 description 3
- 230000003254 anti-foaming effect Effects 0.000 description 3
- 150000001558 benzoic acid derivatives Chemical class 0.000 description 3
- 159000000007 calcium salts Chemical class 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 239000003599 detergent Substances 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 235000019198 oils Nutrition 0.000 description 3
- 150000007524 organic acids Chemical class 0.000 description 3
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 3
- 239000002304 perfume Substances 0.000 description 3
- 239000003755 preservative agent Substances 0.000 description 3
- 229960004889 salicylic acid Drugs 0.000 description 3
- 239000000344 soap Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- JBVOQKNLGSOPNZ-UHFFFAOYSA-N 2-propan-2-ylbenzenesulfonic acid Chemical class CC(C)C1=CC=CC=C1S(O)(=O)=O JBVOQKNLGSOPNZ-UHFFFAOYSA-N 0.000 description 2
- WHSXTWFYRGOBGO-UHFFFAOYSA-N 3-methylsalicylic acid Chemical compound CC1=CC=CC(C(O)=O)=C1O WHSXTWFYRGOBGO-UHFFFAOYSA-N 0.000 description 2
- PTHBKNSHSCMKBV-UHFFFAOYSA-N 4,6,8-trihydroxy-3-(2-hydroxyethyl)-2,3-dihydronaphtho[2,3-f][1]benzofuran-5,10-dione Chemical compound O=C1C2=CC(O)=CC(O)=C2C(=O)C2=C1C=C1OCC(CCO)C1=C2O PTHBKNSHSCMKBV-UHFFFAOYSA-N 0.000 description 2
- RUPBZQFQVRMKDG-UHFFFAOYSA-M Didecyldimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCC[N+](C)(C)CCCCCCCCCC RUPBZQFQVRMKDG-UHFFFAOYSA-M 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid group Chemical group C(C1=CC=CC=C1)(=O)O WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000007859 condensation product Substances 0.000 description 2
- RWGFKTVRMDUZSP-UHFFFAOYSA-N cumene Chemical compound CC(C)C1=CC=CC=C1 RWGFKTVRMDUZSP-UHFFFAOYSA-N 0.000 description 2
- 150000001991 dicarboxylic acids Chemical class 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 235000005985 organic acids Nutrition 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 230000002335 preservative effect Effects 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 2
- PTHBKNSHSCMKBV-ZETCQYMHSA-N versicol Natural products OCC[C@H]1COc2cc3C(=O)c4cc(O)cc(O)c4C(=O)c3c(O)c12 PTHBKNSHSCMKBV-ZETCQYMHSA-N 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- DLGBEGBHXSAQOC-UHFFFAOYSA-N 2-hydroxy-5-methylbenzoic acid Chemical compound CC1=CC=C(O)C(C(O)=O)=C1 DLGBEGBHXSAQOC-UHFFFAOYSA-N 0.000 description 1
- NJESAXZANHETJV-UHFFFAOYSA-N 4-methylsalicylic acid Chemical compound CC1=CC=C(C(O)=O)C(O)=C1 NJESAXZANHETJV-UHFFFAOYSA-N 0.000 description 1
- ZOLACKDSSUBCNN-UHFFFAOYSA-N 5,6-dimethylcyclohexa-2,4-diene-1-carboxylic acid Chemical class CC1C(C(O)=O)C=CC=C1C ZOLACKDSSUBCNN-UHFFFAOYSA-N 0.000 description 1
- FVVDKUPCWXUVNP-UHFFFAOYSA-M Aminosalicylate sodium anhydrous Chemical compound [Na+].NC1=CC=C(C([O-])=O)C(O)=C1 FVVDKUPCWXUVNP-UHFFFAOYSA-M 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 101000654316 Centruroides limpidus Beta-toxin Cll2 Proteins 0.000 description 1
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 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 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 241000192125 Firmicutes Species 0.000 description 1
- 241000257303 Hymenoptera Species 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- DMSMPAJRVJJAGA-UHFFFAOYSA-N benzo[d]isothiazol-3-one Chemical group C1=CC=C2C(=O)NSC2=C1 DMSMPAJRVJJAGA-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 239000006172 buffering agent Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 125000002843 carboxylic acid group Chemical group 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 238000006243 chemical reaction 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
- 239000000084 colloidal system Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- BEFDCLMNVWHSGT-UHFFFAOYSA-N ethenylcyclopentane Chemical compound C=CC1CCCC1 BEFDCLMNVWHSGT-UHFFFAOYSA-N 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002085 irritant Substances 0.000 description 1
- 231100000021 irritant Toxicity 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 1
- XKLJHFLUAHKGGU-UHFFFAOYSA-N nitrous amide Chemical compound ON=N XKLJHFLUAHKGGU-UHFFFAOYSA-N 0.000 description 1
- 239000003605 opacifier Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- NIXKBAZVOQAHGC-UHFFFAOYSA-N phenylmethanesulfonic acid Chemical class OS(=O)(=O)CC1=CC=CC=C1 NIXKBAZVOQAHGC-UHFFFAOYSA-N 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 229940058287 salicylic acid derivative anticestodals Drugs 0.000 description 1
- 150000003872 salicylic acid derivatives Chemical class 0.000 description 1
- 235000003441 saturated fatty acids Nutrition 0.000 description 1
- 239000003352 sequestering agent Substances 0.000 description 1
- 235000010199 sorbic acid Nutrition 0.000 description 1
- 239000004334 sorbic acid Substances 0.000 description 1
- 229940075582 sorbic acid Drugs 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000009044 synergistic interaction Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 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
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2003—Alcohols; Phenols
- C11D3/2006—Monohydric alcohols
- C11D3/2017—Monohydric alcohols branched
- C11D3/202—Monohydric alcohols branched fatty or with at least 8 carbon atoms in the alkyl chain
-
- 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
- C11D3/2006—Monohydric alcohols
- C11D3/2017—Monohydric alcohols branched
-
- 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
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2079—Monocarboxylic acids-salts thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
- C11D3/3765—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in liquid compositions
Landscapes
- 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)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Detergent Compositions (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Cleaning compositions of pH 2-6 which comprise 1-30 %wt on product of an alkoxylated nonionic surfactant, less than 50 %wt of total surfactant of anionic surfactant and 0.005-5 %wt on product of a water soluble, anionic polymer having an average molecular weight of less than 1,000,000, wherein, the ratio of polymer:nonionic is 0.1:1 or less, said products being characterised in that: a) the ethoxylated nonionic surfactant is a material of the general formula: R- (EO)w-OH wherein EO is a residue of ethylene glycol, w is 1-10 and R is a C8-C18 alkyl or alkyl phenyl group; b) the composition further comprises a monocarboxylic fatty acid of general formula: R1-COOH wherein R1 is a C8-C18 alkyl group; c) the composition further comprises a mixed propoxylated/ethoxylated nonionic surfactant of general formula: R2¢(EO)x(PO)y!-OH wherein EO and PO are residues of ethylene and propylene glycol, x is 1-10, y is 1-10, and R2 is a C8-C18 alkyl group, and, d) the composition further comprises a monobranched alcohol of the general formula: R3-OH wherein R3 is a branched C8-C18 alkyl group.
Description
IMPRO ~ ~ NTS REL~TING TO CLE~iNING COMPOSITIONS
s Technical Field The prese~. nve~r_on re-ates to a clean g cor~csi~ a~
'J -O a merhcd OL. trea~i-g surfaces wi~h the SG-~- mPCS _ C .
sackground to the Invention ~ard-suvface clean r.g compositions generally comprise ore or more sur.actants, and, optiorally, one or more hvg e-e agents .
Typ-cally, the surfacrants used in such cleanirg compositions are seiected from anionic, nonionic, amphoteric and cationic surfactants. Nonionics are very commor_y sed due to their effectiveness on fatty soils and the ease wi~h which their foaming can be controlled. .~. known manner in which foaming can be controlled involves incluc-ing in -he composition relatively low levels of a solubilised hydrophobic oil such as an iso-paraffin and a relat ve-y low level on product of a suvfactant such as a fatty acid soap which forms a calcium salt insoluble in dilute aqueous solution. Both the oil and the soap components are soluble/miscible in the composition forming a stable product until (hard) water is added whereupon the combination of oil and the particles of calcium salt formed in situ acts as a ~foam breaker~ for a second (main) surfactant. This greatly aids in the rinsing of the compositions as excessive -oaming is prevented.
AM~i~D~~ Stt~E~
As well as the ef'ect or. the salt content o~~ the compos'~_on on dilucion with hard ~hracer it ia knO'hr2l to e.~ploit t:-e changes in acidity,~al~al n ty ~hich occur or. dilut or T~us acidic gene~al pur?ose cleaning compositions based on t'-.e . gh oaming anior. c sur actant magnesium ?.'~a, or on sodium PAS, ard an organic ac-d such as citric are knor,~. w'~ ch ar-reutralised to pH ~ 0 w'-h a base such as ammon~a to give inpror~ed cleanins e-~ecc-~eness especially as regarcs ''m.--soaps ard lime sca'es Wl _st mairtaining c'ean_ng e~~i - er ~
'8 aga:ns~ fa~_y,'greasy aO a. I t is l~-ow. from Wo 94/09108 i-c:Lude in such o~mulations Clû-18 fatty acids wh c'n ~ave a foarn boost_..g ef.ec. or. the surfactants in acid solut-on, and which, on add ~-on or several volumes of a'kalire water form a p~ecipi_ate o the fatty acid with calcium present o ~, give a oam-suppr.essing effect which aids rins ng ard removal of the foam ~vroduced oy use of the product In addition to surL-ac~ants i~ is known ~rom WO 96/17918 to incorporate polymers in hard surLrace cleaning compos-t_ons 2û These polymers provide benefits both in initial and repea_ec cleaning In order to obtain benefits from the presence o polymers i~ is often useful to formulate compositions in an acidic pH range Typically the pH of the compositions is in the range 3-4 5, with pre.erred va ues around 4 5 ~ol,-mer containing compositions are difficult to antifoam: the presence of iso-paraffins and fatty acids reduce the performance in neat usage and, in particular, the recleaning properties of the product Overall the isoparaffin/fatty acid antifoaming system does not provide a sufficier~tly low 3û foam profile a-,d ease of rinsability for some consumers nr~
CA 022663~3 1999-03-18 srief Description of the Invention We have determined that an effective antifoaming system can be hased or the synergism between four different components:
a b~-anched fatty chain nonionic including a small amount o-free monobranched alcohol; a low le~el of ethoxy'ated,~
propoxylated nonionic surfactant and a fatty acid.
~ ccordingly a first aspect o~ the present invention ~e a~es to a cleaning composition of pH 2-6 comp~ising 0.l-30%wt on product of an ethoxylated nonionic surfactant, less ~han 50%wt of total surfactant of anionic surfactant and 0.005-5%wt on product of a water soluble, anionic polymer having an average molecular weight of less than l,000,000, wherein, i5 the ratio of polymer : nonionic is 0.l:1 or less, said product being CHAR~CTERISED I~ THAT:
a) the ethoxylated nonionic surfactant is a material of the general formula: R- (EO)W-OH wherein EO is a residue of ethylene glycol, w is l-l0 and R is a C~-C22 alkyl or ~lkyl phenyl group;
b) the composition further comprises a monocarboxylic .
fatty acid of general formula: R~-COOH wherein R is a C~-Cl8 alkyl group;
c) the composition further comprises a mixed propoxylated/ethoxylated nonionic surfactant of general formula: R2- [ (EO) X ( PO) y] -OH wherein EO and PO are residues of ethylene and propylene glycol, x is l-l0, y is l-l0, and R2 is a C8-Cl8 alkyl group, and, d) the composition further comprises a monobranched alcohol of the general formula R~-OH wherein R, is a branched C8-Cl8 alkyl group.
MJlENDED SfflET
CA 022663~3 1999-03-18 ., i .
A second aspect of the present invention provides a process for cleaning surfaces which comprises the step of treating the surface with a composition of pH 2-6 comprising: 0.1-30%wt on product of an ethoxylated nonionic surfactant, lessthan 50%wt of total surfactant of anionic sur_aclant and 0.0()5-5%wt on product of a water soluble, anionic ~olymer having an average molecular weight of less than 1,000,000, whereir, the ratio o' polymer : nonionic is 0.1:1 o~ less, said product being C'-~RACmERISE~ IN THAT:
a) the ethoxylated nonionic surfactant is a material O r the general formula: R- (EO)W-OH wherein EO is a residue of ethylene glycol, w is 1-10 and R is a C~-C22 alkyl or alkyl phenyl group;
b) the composition ur~her comprises a monocarboxylic ratty acid of general formula: Ri-COOH wherein Rl is a C~-C.a alkyl group;
c) the composition further comprises a mixed propoxylated/ethoxylated nonionic surfac_ant of gene~al formula: R2-[(EO)x(PO)y]-OH wherein EO and PO are residues of ethylene and propylene glycol, x is 1-10, v is 1-10, and R~ is a C8-Cl8 alkyl group,and, d) the composition further comprises a monobranched alcohol of the general formula R3-OH wherein R~ is a branched C8-Cl8 alkyl group.
It is believed that the combination of the these components gives a superior antifoaming effect when the composition is diluted with sufficient water of pH >6 to raise the pH of the dilute composition to above 6.
AA~E~OED SltEET
. .
CA 022663~3 1999-03-18 WO98/122g4 PCT~7/05175 Detalled DescrlDtlon of the Inventlon In order that the invention may be further understood it will be described hereafter with reference to preferred features and materials. Where percentages of components are used they are weight percents unless stated otherwise and where ratios are used they are weight ratios unless stated otherwise.
Ethoxvlated Nonlonlcs Nonionic, ethoxylated surfactants are present in the compositions of the invention. These surfactants are believed to engage in a synergistic interaction with the polymer, to improve cleaning and aid the removal of soil subsequently deposited.
Suitable nonionic detergent active compounds can be broadly described as compounds produced by the condensation of ethylene oxide groups, which are hydrophillic in nature, with an organic hydrophobic compound which may be aliphatic or alkyl aromatic in nature. The length of the hydrophillic or polyoxyethylene radical which is condensed with any particular hydrophobic group can be readily adjusted to yield a water-soluble compound having the desired degree of balance between hydrophillic and hydrophobic elements.
Particular examples 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 3 to 10 moles of ethylene oxide per mole of coconut alcohol; condensates of alkylphenols whose CA 022663~3 1999-03-18 alkyl group contains from 6 to 12 carbon atoms with 3 to 10 moles of ethylene oxide per mole of alkylphenol.
The preferred alkoxylated alcohol nonionic surfactants are ethoxylated alcohols having a chain length of C9-C11 and an EO value of at least 3 but less than 10. Particularly preferred nonionic surfactants include the condensation products of C1O synthetic alcohols with 3-8 moles of ethylene oxide. The preferred ethoxylated alcohols have a calculated HLB of 10-16.
The material available in the marketplace as 'DOBANOL
91.5EO~ (TM) comprises a high proportion of a C9_ll alcohol with five moles of ethoxylation and has been found to be a suitable source of nonionic surfactant in compositions according to the invention.
The amount of nonionic detergent active to be employed in the composition of the invention will generally be from 0.1 to 30%wt, preferably from 1 to 20%wt, and most preferably from 3 to 10%wt for non-concentrated products.
Concentrated products will have 10-20%wt nonionic surfactant present, whereas dilute products suitable for spraying will have 0.1-5%wt nonionic surfactant present.
ln particularly preferred embodiments of the invention, typical levels of ethoxylated nonionic surfactant fall in the range 5-8%wt for non-concentrates and 13-16% for concentrates.
Polvmers In the context of the present invention, anionic polymers are those which carry a negative charge or similar polymers in protonated form. Mixtures of polymers can be employed. It should be noted that the beneficial effect CA 022663~3 1999-03-18 WO98/12294 PCT~P97/0~175 of anionic polymers is significantly reduced by the presence of anionic surfactants. For this reason ,and for reasons elaborated below, the level of anionic surfactants in the compositions of the invention should be minimised.
The preferred polymers in embodiments of the present invention are polymers of acrylic or methacrylic acid or maleic anhydride, or a co-polymer of one or more of the same either together or with other monomers. Particularly suitable polymers include polyacrylic acid, polymaleic anhydride and copolymers of either of the aformentioned with ethylene, styrene and methyl vinyl ether.
The most preferred polymers are maleic anhydride co-polymers, preferably those formed with styrene, acrylic acid, methyl vinyl ether and ethylene. Preferably, the molecular weight of the polymer is at least, 5000, more preferably at least 50,000 and most preferably in excess of l00,000. As the molecular weight increases the cleaning benefit of the polymer is reduced. ~VERSICOL
Ell' (RTM) ex Allied Colloids has been found to be a suitable polymer.
~ypically, the compositions comprise at least 0.0lwt%
polymer, on product. Preferably the level of polymer is 0.05-5.0wt% at which level the anti-resoiling benefits become particularly significant. More preferably 0.l-3.0wt~, most preferably 0.2-l.5wt%, of polymer is present.
We have determined that higher levels of polymer do not give significant further advantage with common dilution factors, while increasing the cost of compositions.
However, for very concentrated products which are diluted prior to use, the initial polymer level can be as high as 5%w.
CA 022663~3 1999-03-18 FattY Acids As mentioned above, it is believed essential that the monocarboxylic fatty acid is capable of forming a calcium salt which is no more than sparingly soluble in aqueous solutions of foaming surfactants.
The monocarboxylic fatty acid is typically present at a level of 0.2-4.5%wt on product: the upper levels of this range being used for more highly concentrated compositions.
Preferably the monocarboxylic fatty acid content is in the range 0.2-3.0%wt, most preferably in the range 0.3-2.0%wt.
In embodiments of the invention the level of fatty acid is preferably such that the ratio of ethoxylated nonionic to monocarboxylic fatty acid falls in the range 4:1-1:1, more preferably 3:1-2:1 as nonionic: moncarboxylic fatty acid.
More preferably, the monocarboxylic fatty acid is a mixture of saturated fatty acids having an average carbon chain length in the range 10-16, more preferably 12-14.
Coconut fatty acids or a synthetic equivalent thereof are particularly preferred.
Pro~oxYlated/EthoxYlated Nonionics The mixed propoxylated/ethoxylated nonionic surfactant preferably has x is 4-8, y is l-S.
Preferably R2 is a C9-Cl7 alkyl group, i.e. while a range of materials may be present the average chain length is of 9-17 carbons.
CA 022663~3 1999-03-18 BIODAC L6S50 (TM), a commercially available (C12-15)6EO/2PO ethoxylated alcohol, is a suitable propoxylated/ethoxylated nonionic for use in embodiments of the present invention.
This C12-C15 alcohol condensate has a cloud point in distilled water of 36 - 41~C, a mean molecular weight: 534 - 623 and a carbon chain composition of:
C12 = 41%
C13 = 10%
C14 = 37%
C15 = 12%
It is preferable that the weight ratio of the fatty acid to the propoxylated/ethoxylated nonionic falls in the range 1:3-1:10 as fatty acid: nonionic. Ratios of 1:5-1:8 are particularly preferred, with a ratio of 1:6 being used in typical embodiments of the invention.
Preferred levels of the propoxylated/ethoxylated nonionic range from 2-10%wt with levels of 3-6%wt on product being preferred.
Monobranched Alcohol The monobranched alcohol may be added as a separate component or, more conveniently, use may be made of the residual monobranched alcohol which is present in certain ethoxylated nonionic surfactants. In preferred embodiments of the invention no additional monobranched alcohol is added to the composition.
It is believed that during the ethoxylation process which is commonly used to prepare ethoxylated nonionic surfactants from alcohol feedstocks, the ethoxylation of CA 022663~3 l999-03-l8 W O 98/12294 P~ 97/05175 linear alcohols proceeds more guickly than that of the branched alcohols. Thus, where a mixed alcohol feedstock is used, i.e. a synthetic mixture of linear and branched alcohols, the reaction will initially proceed with the ethoxylation of the linear alcohols while the branched alcohols will react to a lesser extent. The product obtained from this process can comprise a residue of unreacted monobranched alcohol.
The material available in the marketplace as 'DOBANOL
91.5EO' (TM) comprises a high proportion of a Cgll alcohol with five moles of ethoxylation and sufficient free monobranched alcohol to be a suitable source of both monobranched alcohol and ethoxylated nonionic surfactant in compositions according to the invention.
While the pH of the composition can fall in the range 2.0-6.0 it is preferable that the pH of the composition is 3.0-4.5. It is believed that above pH 4.5 the benefit of the polymer falls off and below pH 3.0 surface damage may occur. The preferred pH range is 3.2-4Ø The most preferred pH is around 3.75. Compositions having a pH of less than 3.0 will damage enamel surfaces.
Citric acid is particularly preferred to regulate the acidity balance. Typical levels of citrate range from 0.5-5%, with higher levels of 5-10% being used in concentrates and lower levels of 0.1-1% being used in sprayable products. Citric can be replaced by other suitable buffering agents to maintain the pH in this range. These are preferably other polycarboxylic fatty acids. Citric is also preferred for environmental reasons, CA 022663~3 1999-03-18 W O 98/12294 PCT~EP97/05175 a lack of residues and it is believed to be the most cost/weight-effective acld.
Sodium hydroxide is generally used to regulate the pH to the required level.
Antimicrobialfi Optional antimicrobial agents used in the compositions of the present invention are benzoic acid derivatives, dicarboxylic acids, Cl-C6 alkanols and mixtures thereof Typical levels of the antimicrobial agent in formulations range from 0.01 to 8%, with levels of 0.05-4wt%, particularly around 2% being preferred for normal compositions and up to two or four times that concentration being present in so called, 'concentrated~
products. Although both the normal and concentrated products can be used neat it will be commonplace for these to be diluted by the user before use. For sprayable products, which are seldom diluted prior to use, the concentration of the antimicrobial agent will be in the range 0.05-0.5%wt.
In general, whatever the strength of the product the ratio of the nonionic surfactant to the antimicrobial agent will preferably be in the range 50:1 to >1:1, more preferably 30:1 to >1:1 i.e. an excess of nonionic will be present relative to the antimicrobial.
Amongst the benzoic acid derivatives a preferred antimicrobial agent is salicylic acid, which gives better hygiene results than benzoic and shows a very marked improvement as compared with sorbic acid.
CA 022663~3 1999-03-18 W O 98112294 PCT~EP97/05175 .
Alternative benzoic acid derivatives are the polyhydroxyl carboxylic acids in which at least two hydroxyl groups are present and at least one of the hydroxyl groups is ortho-to the carboxylic acid group. The remaining hydroxyl group or groups can be in the remaining ortho-, para- or meta- configurations. The polyhydroxyl carboxylic acids exhibit the same synergy as the mono hydroxylic acid derivative (salicylic acid) but are believed to be less irritant.
We have determined that, in the presence of nonionic surfactant, salicylic acid derivatives methylated at positions 3-6 exhibit an additional antimicrobial action over that obtained with salicylic acid. This is particularly true for gram positive bacteria and yeasts.
The preferred alkyl substituted ortho-hydroxy aromatic carboxylic acid of the general formula:
Rl-C6H~(OH)(COOH) wherein Rlis Cll2 alkyl, and the hydroxyl group is ortho to the carboxyl group on the benzene ring structure.
Preferably the alkyl substituted ortho-hydroxy aromatic carboxylic acids are substituted at the 3, 4 or 5-position, relative to the carboxyl group. Preferred chain lengths for the alkyl group are Cl6, with methyl substituted acids being particularly preferred.
Particularly preferred acids are 2-hydroxy 5-methyl benzoic acid, 2-hydroxy 4-methyl benzoic acid and 2-hydroxy 3-methyl benzoic acid.
Amongst the dicarboxylic acids, succinic acid is preferred.
CA 022663~3 1999-03-18 W O 98/12294 PCT~EP97/05175 Amongst the alkanols, the C2-Cs alcohols are preferred.
These include ethanol and isopropanol. Isopropanol has been found to be particularly effective and is particularly preferred among the alkanols.
Minors and ODtional ComDonents The composition according to the invention can contain other minor, inessential ingredients which aid in their cleaning performance and maintain the physical and chemical stability of the product.
For example, the composition can contain detergent builders. In general, the builder, when employed, preferably will form from 0.1 to 25% by weight of the composition.
optionally, the composition can include one or more amphoteric surfactants, preferably betaines, or other surfactants such as amine-oxide and alkyl-amino-glycinates. Betaines are preferred for reasons of cost, low toxicity (especially as compared to amine-oxide) and wide availability. It is believed that amphoteric surfactants show a slight synergy with some organic acids (when present) as regards antimicrobial effects.
Typical betaines in compositions according to the invention are the amido-alkyl betaines, particularly the amido-propyl betaines, preferably having an aliphatic alkyl radical of from 8 to 18 carbon atoms and preferably having a straight chain. These betaines are preferred as they are believed to comprise relatively low levels of nitrosamine precursors although other betaines, such as alkyl betaines, can be used in the compositions of the invention.
CA 022663~3 1999-03-18 WO98/12294 PCT~P97/05175 Typical levels of amphoteric range from 0.01 to 8%, with levels of l-5wt%, particularly around 2% being preferred for normal compositions and up to four times the concentration being present in so called, concentrated products. As with the nonionic surfactant, lower levels or around 0.05-1% will be employed in sprayable products and higher levels of, typically, around 4%wt in concentrates. In general, the ratio of the betaine to the aromatic carboxylic acid will be in the range 1:3 to 3:1, with approximately equal levels on a weight basis being preferred.
Metal ion sequestrants, including ethylenediaminetetraacetates, aminopolyphosphonates (such as those in the DEQUESTk range) and phosphates and a wide variety of other poly-functional organic acids and salts, can also optionally be employed. It is believed that the hygiene performance of the composition is improved by the presence of a metal ion se~uesterant.
Hydrotropes, are useful optional components. It is believed that the use of hydrotropes enables the cloud point of the compositions to be raised without requiring the addition of anionic surfactants. The presence of both anionic surfactants and betaine is believed to be detrimental to the formulations as these surfactants interact with the amphoterics, when present, and to form a complex which inhibits the synergistic hygiene activity of the amphoterics with the organic acid. Preferably the formations according to the invention are free of anionic surfactants when betaine is present, or contain low levels of anionic surfactants, i.e. less than 50% of the total level of surfactant present and preferably less than 50%
of the level of the betaine in the product. Anionics are compatible with the solely alcohol ethoxylate based compositions of the present invention when the level is CA 022663~3 1999-03-18 W O 98/12294 PCT~EP97/05175 below 50%wt of the total surfactant present, but their level should be minimised in view of their interactions with the polymers. Preferably the level of anionic is below 30% of the total surfactant content of the composition and more preferably below 10% of the surfactant content. It is possible to make compositions which contain little or no anionic surfactant.
Suitable hydrotropes include, alkali metal toluene sulphonates, urea, alkali metal xylene and cumene sulphonates, polyglycols, >20EO ethoxylated alcohols, short chain, preferably C2-Cs alcohols and glycols.
Preferred amongst these hydrotropes are the sulphonates, particularly the cumene, xylene and toluene sulphonates.
Typical levels of hydrotrope range from 0-5% for the sulphonates. Correspondingly higher levels of urea and alcohols are required. Hydrotropes are not always required for dilute, sprayable products, but may be required if lower EO or longer alkyl ethoxylates are used or the cloud point needs to be raised considerably.
Typically, the cloud point of the final composition should preferably be in the range 45-50 Celcius. The cumene sulphonate is the most preferred hydrotrope. For ethoxylated nonionic levels of around 7%wt on product levels of SCS will generally be in the range 0.6-0.8wt%
for ethoxylated nonionic levels of around 14%wt levels of SCS will generally be in the range 1.0-1.2wt%.
Compositions according to the invention can also contain, in addition to the ingredients already mentioned, various other optional ingredients such as, solvents, colourants, optical brighteners, soil suspending agents, detersive enzymes, compatible bleaching agents, gel-control agents, freeze-thaw stabilisers, further bactericides, perfumes and opacifiers.
CA 022663~3 1999-03-18 W O 98/12294 PCT~EP97/05175 .
A suitable preservative is PROXEL LV ~TM).
It is preferred that compositions of the invention are essentially free of solvents, i.e. that they comprise less than 0.5% of glycol ethers and Cl-C6 linear alcohols.
The most preferred formulations according to the present invention, excluding minors such as perfumes, preservative and colour, comprise:
a) 5-16%wt of an ethoxylated mixed linear and branched alcohol nonionic surfactant having an ethoxylation value of 5-10 and an average carbon chain length of 8-14;
b) 0.2-1.5%wt of a polymer of acrylic or methacrylic acid or maleic anhydride, or a co-polymer of one or more of the same either together or with other monomers having an average molecular weight of 50000-1000000;
c) 2-10% of a 4-8EO/1-5PO ethoxylated alcohol with an average carbon chain length of 12-15;
25 d) 0.3-2.0%wt of a saturated fatty acid having an average carbon chain length of 12-14, and;
e) 0-5%wt of an alkali metal sulphonate hydrotrope;
In order that the invention may be further understood it will be described further by way of the following non-limiting examples and with reference to the sole accompanying figure.
CA 022663~3 1999-03-18 Exam~les The following compositions (A and B) were prepared by mixing the followlng components.
A% B%
Nonionic (Dobanol 91.5) 7.0 14.0 Nonionic EO/PO (BIODAC L6S50) 3.0 6.0 Polyacrylate Versicol E11) 0.5 1.0 Coco Fatty Acid 0.5 1.0 Citric acid 0.6 1.2 Sodium Hydroxide -- to pH 3.75 --Sodium Cumene Sulphonate -- to cp 45-50 --Preservative tProxel LV~ 0.016 0.016 Perfume 0.38-0.5 0.76-1.0 Water qv qv Viscosity (mPas) 20 80 Both were stable compositions.
The foam profile of Example A was determined during dilution with Italian tap water of 24 French hardness, measuring the foam height as the product was diluted from a concentration of 24 g/l to 3 g/1 to model the rinsing process. Results are shown in the accompanying figure.
From the figure it can be seen that as the composition is diluted the pH of the diluted composition rises and the both the foam height and the foam persistence are reduced markedly.
,
s Technical Field The prese~. nve~r_on re-ates to a clean g cor~csi~ a~
'J -O a merhcd OL. trea~i-g surfaces wi~h the SG-~- mPCS _ C .
sackground to the Invention ~ard-suvface clean r.g compositions generally comprise ore or more sur.actants, and, optiorally, one or more hvg e-e agents .
Typ-cally, the surfacrants used in such cleanirg compositions are seiected from anionic, nonionic, amphoteric and cationic surfactants. Nonionics are very commor_y sed due to their effectiveness on fatty soils and the ease wi~h which their foaming can be controlled. .~. known manner in which foaming can be controlled involves incluc-ing in -he composition relatively low levels of a solubilised hydrophobic oil such as an iso-paraffin and a relat ve-y low level on product of a suvfactant such as a fatty acid soap which forms a calcium salt insoluble in dilute aqueous solution. Both the oil and the soap components are soluble/miscible in the composition forming a stable product until (hard) water is added whereupon the combination of oil and the particles of calcium salt formed in situ acts as a ~foam breaker~ for a second (main) surfactant. This greatly aids in the rinsing of the compositions as excessive -oaming is prevented.
AM~i~D~~ Stt~E~
As well as the ef'ect or. the salt content o~~ the compos'~_on on dilucion with hard ~hracer it ia knO'hr2l to e.~ploit t:-e changes in acidity,~al~al n ty ~hich occur or. dilut or T~us acidic gene~al pur?ose cleaning compositions based on t'-.e . gh oaming anior. c sur actant magnesium ?.'~a, or on sodium PAS, ard an organic ac-d such as citric are knor,~. w'~ ch ar-reutralised to pH ~ 0 w'-h a base such as ammon~a to give inpror~ed cleanins e-~ecc-~eness especially as regarcs ''m.--soaps ard lime sca'es Wl _st mairtaining c'ean_ng e~~i - er ~
'8 aga:ns~ fa~_y,'greasy aO a. I t is l~-ow. from Wo 94/09108 i-c:Lude in such o~mulations Clû-18 fatty acids wh c'n ~ave a foarn boost_..g ef.ec. or. the surfactants in acid solut-on, and which, on add ~-on or several volumes of a'kalire water form a p~ecipi_ate o the fatty acid with calcium present o ~, give a oam-suppr.essing effect which aids rins ng ard removal of the foam ~vroduced oy use of the product In addition to surL-ac~ants i~ is known ~rom WO 96/17918 to incorporate polymers in hard surLrace cleaning compos-t_ons 2û These polymers provide benefits both in initial and repea_ec cleaning In order to obtain benefits from the presence o polymers i~ is often useful to formulate compositions in an acidic pH range Typically the pH of the compositions is in the range 3-4 5, with pre.erred va ues around 4 5 ~ol,-mer containing compositions are difficult to antifoam: the presence of iso-paraffins and fatty acids reduce the performance in neat usage and, in particular, the recleaning properties of the product Overall the isoparaffin/fatty acid antifoaming system does not provide a sufficier~tly low 3û foam profile a-,d ease of rinsability for some consumers nr~
CA 022663~3 1999-03-18 srief Description of the Invention We have determined that an effective antifoaming system can be hased or the synergism between four different components:
a b~-anched fatty chain nonionic including a small amount o-free monobranched alcohol; a low le~el of ethoxy'ated,~
propoxylated nonionic surfactant and a fatty acid.
~ ccordingly a first aspect o~ the present invention ~e a~es to a cleaning composition of pH 2-6 comp~ising 0.l-30%wt on product of an ethoxylated nonionic surfactant, less ~han 50%wt of total surfactant of anionic surfactant and 0.005-5%wt on product of a water soluble, anionic polymer having an average molecular weight of less than l,000,000, wherein, i5 the ratio of polymer : nonionic is 0.l:1 or less, said product being CHAR~CTERISED I~ THAT:
a) the ethoxylated nonionic surfactant is a material of the general formula: R- (EO)W-OH wherein EO is a residue of ethylene glycol, w is l-l0 and R is a C~-C22 alkyl or ~lkyl phenyl group;
b) the composition further comprises a monocarboxylic .
fatty acid of general formula: R~-COOH wherein R is a C~-Cl8 alkyl group;
c) the composition further comprises a mixed propoxylated/ethoxylated nonionic surfactant of general formula: R2- [ (EO) X ( PO) y] -OH wherein EO and PO are residues of ethylene and propylene glycol, x is l-l0, y is l-l0, and R2 is a C8-Cl8 alkyl group, and, d) the composition further comprises a monobranched alcohol of the general formula R~-OH wherein R, is a branched C8-Cl8 alkyl group.
MJlENDED SfflET
CA 022663~3 1999-03-18 ., i .
A second aspect of the present invention provides a process for cleaning surfaces which comprises the step of treating the surface with a composition of pH 2-6 comprising: 0.1-30%wt on product of an ethoxylated nonionic surfactant, lessthan 50%wt of total surfactant of anionic sur_aclant and 0.0()5-5%wt on product of a water soluble, anionic ~olymer having an average molecular weight of less than 1,000,000, whereir, the ratio o' polymer : nonionic is 0.1:1 o~ less, said product being C'-~RACmERISE~ IN THAT:
a) the ethoxylated nonionic surfactant is a material O r the general formula: R- (EO)W-OH wherein EO is a residue of ethylene glycol, w is 1-10 and R is a C~-C22 alkyl or alkyl phenyl group;
b) the composition ur~her comprises a monocarboxylic ratty acid of general formula: Ri-COOH wherein Rl is a C~-C.a alkyl group;
c) the composition further comprises a mixed propoxylated/ethoxylated nonionic surfac_ant of gene~al formula: R2-[(EO)x(PO)y]-OH wherein EO and PO are residues of ethylene and propylene glycol, x is 1-10, v is 1-10, and R~ is a C8-Cl8 alkyl group,and, d) the composition further comprises a monobranched alcohol of the general formula R3-OH wherein R~ is a branched C8-Cl8 alkyl group.
It is believed that the combination of the these components gives a superior antifoaming effect when the composition is diluted with sufficient water of pH >6 to raise the pH of the dilute composition to above 6.
AA~E~OED SltEET
. .
CA 022663~3 1999-03-18 WO98/122g4 PCT~7/05175 Detalled DescrlDtlon of the Inventlon In order that the invention may be further understood it will be described hereafter with reference to preferred features and materials. Where percentages of components are used they are weight percents unless stated otherwise and where ratios are used they are weight ratios unless stated otherwise.
Ethoxvlated Nonlonlcs Nonionic, ethoxylated surfactants are present in the compositions of the invention. These surfactants are believed to engage in a synergistic interaction with the polymer, to improve cleaning and aid the removal of soil subsequently deposited.
Suitable nonionic detergent active compounds can be broadly described as compounds produced by the condensation of ethylene oxide groups, which are hydrophillic in nature, with an organic hydrophobic compound which may be aliphatic or alkyl aromatic in nature. The length of the hydrophillic or polyoxyethylene radical which is condensed with any particular hydrophobic group can be readily adjusted to yield a water-soluble compound having the desired degree of balance between hydrophillic and hydrophobic elements.
Particular examples 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 3 to 10 moles of ethylene oxide per mole of coconut alcohol; condensates of alkylphenols whose CA 022663~3 1999-03-18 alkyl group contains from 6 to 12 carbon atoms with 3 to 10 moles of ethylene oxide per mole of alkylphenol.
The preferred alkoxylated alcohol nonionic surfactants are ethoxylated alcohols having a chain length of C9-C11 and an EO value of at least 3 but less than 10. Particularly preferred nonionic surfactants include the condensation products of C1O synthetic alcohols with 3-8 moles of ethylene oxide. The preferred ethoxylated alcohols have a calculated HLB of 10-16.
The material available in the marketplace as 'DOBANOL
91.5EO~ (TM) comprises a high proportion of a C9_ll alcohol with five moles of ethoxylation and has been found to be a suitable source of nonionic surfactant in compositions according to the invention.
The amount of nonionic detergent active to be employed in the composition of the invention will generally be from 0.1 to 30%wt, preferably from 1 to 20%wt, and most preferably from 3 to 10%wt for non-concentrated products.
Concentrated products will have 10-20%wt nonionic surfactant present, whereas dilute products suitable for spraying will have 0.1-5%wt nonionic surfactant present.
ln particularly preferred embodiments of the invention, typical levels of ethoxylated nonionic surfactant fall in the range 5-8%wt for non-concentrates and 13-16% for concentrates.
Polvmers In the context of the present invention, anionic polymers are those which carry a negative charge or similar polymers in protonated form. Mixtures of polymers can be employed. It should be noted that the beneficial effect CA 022663~3 1999-03-18 WO98/12294 PCT~P97/0~175 of anionic polymers is significantly reduced by the presence of anionic surfactants. For this reason ,and for reasons elaborated below, the level of anionic surfactants in the compositions of the invention should be minimised.
The preferred polymers in embodiments of the present invention are polymers of acrylic or methacrylic acid or maleic anhydride, or a co-polymer of one or more of the same either together or with other monomers. Particularly suitable polymers include polyacrylic acid, polymaleic anhydride and copolymers of either of the aformentioned with ethylene, styrene and methyl vinyl ether.
The most preferred polymers are maleic anhydride co-polymers, preferably those formed with styrene, acrylic acid, methyl vinyl ether and ethylene. Preferably, the molecular weight of the polymer is at least, 5000, more preferably at least 50,000 and most preferably in excess of l00,000. As the molecular weight increases the cleaning benefit of the polymer is reduced. ~VERSICOL
Ell' (RTM) ex Allied Colloids has been found to be a suitable polymer.
~ypically, the compositions comprise at least 0.0lwt%
polymer, on product. Preferably the level of polymer is 0.05-5.0wt% at which level the anti-resoiling benefits become particularly significant. More preferably 0.l-3.0wt~, most preferably 0.2-l.5wt%, of polymer is present.
We have determined that higher levels of polymer do not give significant further advantage with common dilution factors, while increasing the cost of compositions.
However, for very concentrated products which are diluted prior to use, the initial polymer level can be as high as 5%w.
CA 022663~3 1999-03-18 FattY Acids As mentioned above, it is believed essential that the monocarboxylic fatty acid is capable of forming a calcium salt which is no more than sparingly soluble in aqueous solutions of foaming surfactants.
The monocarboxylic fatty acid is typically present at a level of 0.2-4.5%wt on product: the upper levels of this range being used for more highly concentrated compositions.
Preferably the monocarboxylic fatty acid content is in the range 0.2-3.0%wt, most preferably in the range 0.3-2.0%wt.
In embodiments of the invention the level of fatty acid is preferably such that the ratio of ethoxylated nonionic to monocarboxylic fatty acid falls in the range 4:1-1:1, more preferably 3:1-2:1 as nonionic: moncarboxylic fatty acid.
More preferably, the monocarboxylic fatty acid is a mixture of saturated fatty acids having an average carbon chain length in the range 10-16, more preferably 12-14.
Coconut fatty acids or a synthetic equivalent thereof are particularly preferred.
Pro~oxYlated/EthoxYlated Nonionics The mixed propoxylated/ethoxylated nonionic surfactant preferably has x is 4-8, y is l-S.
Preferably R2 is a C9-Cl7 alkyl group, i.e. while a range of materials may be present the average chain length is of 9-17 carbons.
CA 022663~3 1999-03-18 BIODAC L6S50 (TM), a commercially available (C12-15)6EO/2PO ethoxylated alcohol, is a suitable propoxylated/ethoxylated nonionic for use in embodiments of the present invention.
This C12-C15 alcohol condensate has a cloud point in distilled water of 36 - 41~C, a mean molecular weight: 534 - 623 and a carbon chain composition of:
C12 = 41%
C13 = 10%
C14 = 37%
C15 = 12%
It is preferable that the weight ratio of the fatty acid to the propoxylated/ethoxylated nonionic falls in the range 1:3-1:10 as fatty acid: nonionic. Ratios of 1:5-1:8 are particularly preferred, with a ratio of 1:6 being used in typical embodiments of the invention.
Preferred levels of the propoxylated/ethoxylated nonionic range from 2-10%wt with levels of 3-6%wt on product being preferred.
Monobranched Alcohol The monobranched alcohol may be added as a separate component or, more conveniently, use may be made of the residual monobranched alcohol which is present in certain ethoxylated nonionic surfactants. In preferred embodiments of the invention no additional monobranched alcohol is added to the composition.
It is believed that during the ethoxylation process which is commonly used to prepare ethoxylated nonionic surfactants from alcohol feedstocks, the ethoxylation of CA 022663~3 l999-03-l8 W O 98/12294 P~ 97/05175 linear alcohols proceeds more guickly than that of the branched alcohols. Thus, where a mixed alcohol feedstock is used, i.e. a synthetic mixture of linear and branched alcohols, the reaction will initially proceed with the ethoxylation of the linear alcohols while the branched alcohols will react to a lesser extent. The product obtained from this process can comprise a residue of unreacted monobranched alcohol.
The material available in the marketplace as 'DOBANOL
91.5EO' (TM) comprises a high proportion of a Cgll alcohol with five moles of ethoxylation and sufficient free monobranched alcohol to be a suitable source of both monobranched alcohol and ethoxylated nonionic surfactant in compositions according to the invention.
While the pH of the composition can fall in the range 2.0-6.0 it is preferable that the pH of the composition is 3.0-4.5. It is believed that above pH 4.5 the benefit of the polymer falls off and below pH 3.0 surface damage may occur. The preferred pH range is 3.2-4Ø The most preferred pH is around 3.75. Compositions having a pH of less than 3.0 will damage enamel surfaces.
Citric acid is particularly preferred to regulate the acidity balance. Typical levels of citrate range from 0.5-5%, with higher levels of 5-10% being used in concentrates and lower levels of 0.1-1% being used in sprayable products. Citric can be replaced by other suitable buffering agents to maintain the pH in this range. These are preferably other polycarboxylic fatty acids. Citric is also preferred for environmental reasons, CA 022663~3 1999-03-18 W O 98/12294 PCT~EP97/05175 a lack of residues and it is believed to be the most cost/weight-effective acld.
Sodium hydroxide is generally used to regulate the pH to the required level.
Antimicrobialfi Optional antimicrobial agents used in the compositions of the present invention are benzoic acid derivatives, dicarboxylic acids, Cl-C6 alkanols and mixtures thereof Typical levels of the antimicrobial agent in formulations range from 0.01 to 8%, with levels of 0.05-4wt%, particularly around 2% being preferred for normal compositions and up to two or four times that concentration being present in so called, 'concentrated~
products. Although both the normal and concentrated products can be used neat it will be commonplace for these to be diluted by the user before use. For sprayable products, which are seldom diluted prior to use, the concentration of the antimicrobial agent will be in the range 0.05-0.5%wt.
In general, whatever the strength of the product the ratio of the nonionic surfactant to the antimicrobial agent will preferably be in the range 50:1 to >1:1, more preferably 30:1 to >1:1 i.e. an excess of nonionic will be present relative to the antimicrobial.
Amongst the benzoic acid derivatives a preferred antimicrobial agent is salicylic acid, which gives better hygiene results than benzoic and shows a very marked improvement as compared with sorbic acid.
CA 022663~3 1999-03-18 W O 98112294 PCT~EP97/05175 .
Alternative benzoic acid derivatives are the polyhydroxyl carboxylic acids in which at least two hydroxyl groups are present and at least one of the hydroxyl groups is ortho-to the carboxylic acid group. The remaining hydroxyl group or groups can be in the remaining ortho-, para- or meta- configurations. The polyhydroxyl carboxylic acids exhibit the same synergy as the mono hydroxylic acid derivative (salicylic acid) but are believed to be less irritant.
We have determined that, in the presence of nonionic surfactant, salicylic acid derivatives methylated at positions 3-6 exhibit an additional antimicrobial action over that obtained with salicylic acid. This is particularly true for gram positive bacteria and yeasts.
The preferred alkyl substituted ortho-hydroxy aromatic carboxylic acid of the general formula:
Rl-C6H~(OH)(COOH) wherein Rlis Cll2 alkyl, and the hydroxyl group is ortho to the carboxyl group on the benzene ring structure.
Preferably the alkyl substituted ortho-hydroxy aromatic carboxylic acids are substituted at the 3, 4 or 5-position, relative to the carboxyl group. Preferred chain lengths for the alkyl group are Cl6, with methyl substituted acids being particularly preferred.
Particularly preferred acids are 2-hydroxy 5-methyl benzoic acid, 2-hydroxy 4-methyl benzoic acid and 2-hydroxy 3-methyl benzoic acid.
Amongst the dicarboxylic acids, succinic acid is preferred.
CA 022663~3 1999-03-18 W O 98/12294 PCT~EP97/05175 Amongst the alkanols, the C2-Cs alcohols are preferred.
These include ethanol and isopropanol. Isopropanol has been found to be particularly effective and is particularly preferred among the alkanols.
Minors and ODtional ComDonents The composition according to the invention can contain other minor, inessential ingredients which aid in their cleaning performance and maintain the physical and chemical stability of the product.
For example, the composition can contain detergent builders. In general, the builder, when employed, preferably will form from 0.1 to 25% by weight of the composition.
optionally, the composition can include one or more amphoteric surfactants, preferably betaines, or other surfactants such as amine-oxide and alkyl-amino-glycinates. Betaines are preferred for reasons of cost, low toxicity (especially as compared to amine-oxide) and wide availability. It is believed that amphoteric surfactants show a slight synergy with some organic acids (when present) as regards antimicrobial effects.
Typical betaines in compositions according to the invention are the amido-alkyl betaines, particularly the amido-propyl betaines, preferably having an aliphatic alkyl radical of from 8 to 18 carbon atoms and preferably having a straight chain. These betaines are preferred as they are believed to comprise relatively low levels of nitrosamine precursors although other betaines, such as alkyl betaines, can be used in the compositions of the invention.
CA 022663~3 1999-03-18 WO98/12294 PCT~P97/05175 Typical levels of amphoteric range from 0.01 to 8%, with levels of l-5wt%, particularly around 2% being preferred for normal compositions and up to four times the concentration being present in so called, concentrated products. As with the nonionic surfactant, lower levels or around 0.05-1% will be employed in sprayable products and higher levels of, typically, around 4%wt in concentrates. In general, the ratio of the betaine to the aromatic carboxylic acid will be in the range 1:3 to 3:1, with approximately equal levels on a weight basis being preferred.
Metal ion sequestrants, including ethylenediaminetetraacetates, aminopolyphosphonates (such as those in the DEQUESTk range) and phosphates and a wide variety of other poly-functional organic acids and salts, can also optionally be employed. It is believed that the hygiene performance of the composition is improved by the presence of a metal ion se~uesterant.
Hydrotropes, are useful optional components. It is believed that the use of hydrotropes enables the cloud point of the compositions to be raised without requiring the addition of anionic surfactants. The presence of both anionic surfactants and betaine is believed to be detrimental to the formulations as these surfactants interact with the amphoterics, when present, and to form a complex which inhibits the synergistic hygiene activity of the amphoterics with the organic acid. Preferably the formations according to the invention are free of anionic surfactants when betaine is present, or contain low levels of anionic surfactants, i.e. less than 50% of the total level of surfactant present and preferably less than 50%
of the level of the betaine in the product. Anionics are compatible with the solely alcohol ethoxylate based compositions of the present invention when the level is CA 022663~3 1999-03-18 W O 98/12294 PCT~EP97/05175 below 50%wt of the total surfactant present, but their level should be minimised in view of their interactions with the polymers. Preferably the level of anionic is below 30% of the total surfactant content of the composition and more preferably below 10% of the surfactant content. It is possible to make compositions which contain little or no anionic surfactant.
Suitable hydrotropes include, alkali metal toluene sulphonates, urea, alkali metal xylene and cumene sulphonates, polyglycols, >20EO ethoxylated alcohols, short chain, preferably C2-Cs alcohols and glycols.
Preferred amongst these hydrotropes are the sulphonates, particularly the cumene, xylene and toluene sulphonates.
Typical levels of hydrotrope range from 0-5% for the sulphonates. Correspondingly higher levels of urea and alcohols are required. Hydrotropes are not always required for dilute, sprayable products, but may be required if lower EO or longer alkyl ethoxylates are used or the cloud point needs to be raised considerably.
Typically, the cloud point of the final composition should preferably be in the range 45-50 Celcius. The cumene sulphonate is the most preferred hydrotrope. For ethoxylated nonionic levels of around 7%wt on product levels of SCS will generally be in the range 0.6-0.8wt%
for ethoxylated nonionic levels of around 14%wt levels of SCS will generally be in the range 1.0-1.2wt%.
Compositions according to the invention can also contain, in addition to the ingredients already mentioned, various other optional ingredients such as, solvents, colourants, optical brighteners, soil suspending agents, detersive enzymes, compatible bleaching agents, gel-control agents, freeze-thaw stabilisers, further bactericides, perfumes and opacifiers.
CA 022663~3 1999-03-18 W O 98/12294 PCT~EP97/05175 .
A suitable preservative is PROXEL LV ~TM).
It is preferred that compositions of the invention are essentially free of solvents, i.e. that they comprise less than 0.5% of glycol ethers and Cl-C6 linear alcohols.
The most preferred formulations according to the present invention, excluding minors such as perfumes, preservative and colour, comprise:
a) 5-16%wt of an ethoxylated mixed linear and branched alcohol nonionic surfactant having an ethoxylation value of 5-10 and an average carbon chain length of 8-14;
b) 0.2-1.5%wt of a polymer of acrylic or methacrylic acid or maleic anhydride, or a co-polymer of one or more of the same either together or with other monomers having an average molecular weight of 50000-1000000;
c) 2-10% of a 4-8EO/1-5PO ethoxylated alcohol with an average carbon chain length of 12-15;
25 d) 0.3-2.0%wt of a saturated fatty acid having an average carbon chain length of 12-14, and;
e) 0-5%wt of an alkali metal sulphonate hydrotrope;
In order that the invention may be further understood it will be described further by way of the following non-limiting examples and with reference to the sole accompanying figure.
CA 022663~3 1999-03-18 Exam~les The following compositions (A and B) were prepared by mixing the followlng components.
A% B%
Nonionic (Dobanol 91.5) 7.0 14.0 Nonionic EO/PO (BIODAC L6S50) 3.0 6.0 Polyacrylate Versicol E11) 0.5 1.0 Coco Fatty Acid 0.5 1.0 Citric acid 0.6 1.2 Sodium Hydroxide -- to pH 3.75 --Sodium Cumene Sulphonate -- to cp 45-50 --Preservative tProxel LV~ 0.016 0.016 Perfume 0.38-0.5 0.76-1.0 Water qv qv Viscosity (mPas) 20 80 Both were stable compositions.
The foam profile of Example A was determined during dilution with Italian tap water of 24 French hardness, measuring the foam height as the product was diluted from a concentration of 24 g/l to 3 g/1 to model the rinsing process. Results are shown in the accompanying figure.
From the figure it can be seen that as the composition is diluted the pH of the diluted composition rises and the both the foam height and the foam persistence are reduced markedly.
,
Claims (7)
1. A cleaning composition of pH 2-6 comprising 0.1-30%wt on product of an ethoxylated nonionic surfactant, less than 50%wt of total surfactant of anionic surfactant and 0.005-5%wt on product of a water soluble, anionic polymer having an average molecular weight of less than 1,000,000, wherein, the ratio of polymer : nonionic is 0.1:1 or less, said product being CHARACTERISED IN THAT
:
a) the ethoxylated nonionic surfactant is a material of the general formula: R-(EO)w-OH wherein EO is a residue of ethylene glycol, w is 1-10 and R is a C8-C22 alkyl or alkyl phenyl group;
b) the composition further comprises a monocarboxylic fatty acid of general formula: R1-COOH: wherein R1 is a C8-C18 alkyl group;
c) the composition further comprises a mixed propoxylated/ethoxylated nonionic surfactant of general formula: R2-[(EO)x(PO)y] -OH wherein EO and PO are residues of ethylene and propylene glycol, x is 1-10, y is 1-10, and R2 is a C8-C18 alkyl group, and, d) the composition further comprises a monobranched alcohol of the general formula R3-OH wherein R3 is a branched C8-C18 alkyl group.
:
a) the ethoxylated nonionic surfactant is a material of the general formula: R-(EO)w-OH wherein EO is a residue of ethylene glycol, w is 1-10 and R is a C8-C22 alkyl or alkyl phenyl group;
b) the composition further comprises a monocarboxylic fatty acid of general formula: R1-COOH: wherein R1 is a C8-C18 alkyl group;
c) the composition further comprises a mixed propoxylated/ethoxylated nonionic surfactant of general formula: R2-[(EO)x(PO)y] -OH wherein EO and PO are residues of ethylene and propylene glycol, x is 1-10, y is 1-10, and R2 is a C8-C18 alkyl group, and, d) the composition further comprises a monobranched alcohol of the general formula R3-OH wherein R3 is a branched C8-C18 alkyl group.
2. Composition according to claim 1 wherein the ethoxylated nonionic surfactant has an EO value of at least 3 but less than 10.
3. Composition according to claim 1 wherein the anionic polymer is selected from the group comprising polyacrylic acid, polymaleic anhydride and copolymers of either of the aformentioned with ethylene, styrene and methyl vinyl ether having a molecular weight of at least 50,000.
4. Composition according to claim 1 wherein the level of fatty acid is such that the ratio of ethoxylated nonionic to monocarboxylic fatty acid falls in the range 4:1-1:1
5. Composition according to claim 1 wherein the level of propoxylated/ethoxylated nonionic surfactant is 2-10%wt on product
6. Composition according to claim 5 wherein the propoxylated/ethoxylated nonionic surfactant preferably has x is 4-8, y is 1-5.
7. Composition according to claim 1 which comprises:
a) 5-16%wt of an ethoxylated mixed linear and branched alcohol nonionic surfactant having an ethoxylation value of 5-10 and an average carbon chain length of 8-14;
b) 0.2-1.5%wt of a polymer of acrylic or methacrylic acid or maleic anhydride, or a co-polymer of one or more of the same either together or with other monomers having an average molecular weight of 100,000-1000,000;
c) 3-6 of a 4-8EO/1-5PO ethoxylated alcohol with an average carbon chain length of 9-17;
d) 0.3-2.0%wt of a saturated fatty acid having an average carbon chain length of 12-14, and;
e) 0-5%wt of an alkali metal sulphonate hydrotrope.
a) 5-16%wt of an ethoxylated mixed linear and branched alcohol nonionic surfactant having an ethoxylation value of 5-10 and an average carbon chain length of 8-14;
b) 0.2-1.5%wt of a polymer of acrylic or methacrylic acid or maleic anhydride, or a co-polymer of one or more of the same either together or with other monomers having an average molecular weight of 100,000-1000,000;
c) 3-6 of a 4-8EO/1-5PO ethoxylated alcohol with an average carbon chain length of 9-17;
d) 0.3-2.0%wt of a saturated fatty acid having an average carbon chain length of 12-14, and;
e) 0-5%wt of an alkali metal sulphonate hydrotrope.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9619682.9 | 1996-09-20 | ||
GBGB9619682.9A GB9619682D0 (en) | 1996-09-20 | 1996-09-20 | Improvements relating to antimicrobial cleaning compositions |
PCT/EP1997/005175 WO1998012294A1 (en) | 1996-09-20 | 1997-09-16 | Antimicrobial cleaning compositions |
Publications (1)
Publication Number | Publication Date |
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CA2266353A1 true CA2266353A1 (en) | 1998-03-26 |
Family
ID=10800263
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002266353A Abandoned CA2266353A1 (en) | 1996-09-20 | 1997-09-16 | Antimicrobial cleaning compositions |
Country Status (11)
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EP (1) | EP0929633A1 (en) |
AR (1) | AR008451A1 (en) |
AU (1) | AU4555997A (en) |
BR (1) | BR9712076A (en) |
CA (1) | CA2266353A1 (en) |
GB (1) | GB9619682D0 (en) |
HU (1) | HUP9904411A3 (en) |
PL (1) | PL332310A1 (en) |
SK (1) | SK35399A3 (en) |
WO (1) | WO1998012294A1 (en) |
ZA (1) | ZA978415B (en) |
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ITMI20010477A1 (en) * | 2001-03-08 | 2002-09-08 | Condea Augusta Spa | ANTIBACTERIAL AND ANTIMYCOTIC COMPOSITIONS BASED ON LONG CHAIN ALCOHOLS |
DE102005034752A1 (en) * | 2005-07-21 | 2007-01-25 | Henkel Kgaa | Cleaning and care products with improved emulsifying ability |
DE102006054894A1 (en) * | 2006-11-20 | 2008-05-21 | Henkel Kgaa | Detergents or cleaning agents with stable viscosity |
GB0800788D0 (en) | 2008-01-16 | 2008-02-27 | Glaxo Group Ltd | Niovel formulation |
US8172953B2 (en) | 2009-11-06 | 2012-05-08 | Ecolab Usa Inc. | Alkyl polyglucosides and a propoxylated-ethoxylated extended chain surfactant |
US8071520B2 (en) | 2009-11-06 | 2011-12-06 | Ecolab Usa Inc. | Sulfonated alkyl polyglucoside use for enhanced food soil removal |
US8389463B2 (en) | 2009-11-09 | 2013-03-05 | Ecolab Usa Inc. | Enhanced dispensing of solid compositions |
US8216994B2 (en) | 2009-11-09 | 2012-07-10 | Ecolab Usa Inc. | Phosphate functionalized alkyl polyglucosides used for enhanced food soil removal |
US20150252310A1 (en) | 2014-03-07 | 2015-09-10 | Ecolab Usa Inc. | Alkyl amides for enhanced food soil removal and asphalt dissolution |
CN109234086B (en) * | 2018-09-07 | 2021-03-16 | 广州立白企业集团有限公司 | Concentrated detergent composition |
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PL174150B1 (en) * | 1992-10-16 | 1998-06-30 | Unilever Nv | Improvement in general purpose cleaning compositions |
GB2278125A (en) * | 1993-05-17 | 1994-11-23 | Unilever Plc | Detergent composition |
GB2278124A (en) * | 1993-05-17 | 1994-11-23 | Unilever Plc | Detergent composition |
EP0796315B1 (en) * | 1994-12-09 | 2001-08-29 | Unilever Plc | Improvements relating to antimicrobial cleaning compositions |
-
1996
- 1996-09-20 GB GBGB9619682.9A patent/GB9619682D0/en active Pending
-
1997
- 1997-09-16 BR BR9712076A patent/BR9712076A/en unknown
- 1997-09-16 SK SK353-99A patent/SK35399A3/en unknown
- 1997-09-16 EP EP97943877A patent/EP0929633A1/en not_active Withdrawn
- 1997-09-16 PL PL97332310A patent/PL332310A1/en unknown
- 1997-09-16 CA CA002266353A patent/CA2266353A1/en not_active Abandoned
- 1997-09-16 AU AU45559/97A patent/AU4555997A/en not_active Abandoned
- 1997-09-16 HU HU9904411A patent/HUP9904411A3/en unknown
- 1997-09-16 WO PCT/EP1997/005175 patent/WO1998012294A1/en not_active Application Discontinuation
- 1997-09-18 ZA ZA978415A patent/ZA978415B/en unknown
- 1997-09-19 AR ARP970104306A patent/AR008451A1/en unknown
Also Published As
Publication number | Publication date |
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SK35399A3 (en) | 2000-03-13 |
HUP9904411A2 (en) | 2000-05-28 |
BR9712076A (en) | 1999-08-24 |
ZA978415B (en) | 1999-03-18 |
GB9619682D0 (en) | 1996-11-06 |
AR008451A1 (en) | 2000-01-19 |
HUP9904411A3 (en) | 2002-04-29 |
EP0929633A1 (en) | 1999-07-21 |
PL332310A1 (en) | 1999-08-30 |
WO1998012294A1 (en) | 1998-03-26 |
AU4555997A (en) | 1998-04-14 |
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