EP3350298B1 - Aqueous hard surface cleaning composition - Google Patents
Aqueous hard surface cleaning composition Download PDFInfo
- Publication number
- EP3350298B1 EP3350298B1 EP16760453.7A EP16760453A EP3350298B1 EP 3350298 B1 EP3350298 B1 EP 3350298B1 EP 16760453 A EP16760453 A EP 16760453A EP 3350298 B1 EP3350298 B1 EP 3350298B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- composition
- las
- compositions
- alkyl benzene
- abrasive
- 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.)
- Active
Links
- 239000000203 mixture Substances 0.000 title claims description 103
- 238000004140 cleaning Methods 0.000 title description 12
- 239000002253 acid Substances 0.000 claims description 31
- 150000004996 alkyl benzenes Chemical class 0.000 claims description 23
- 150000002191 fatty alcohols Chemical class 0.000 claims description 20
- 229920000642 polymer Polymers 0.000 claims description 20
- 239000004094 surface-active agent Substances 0.000 claims description 20
- 159000000007 calcium salts Chemical class 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 159000000003 magnesium salts Chemical class 0.000 claims description 9
- 229910021532 Calcite Inorganic materials 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 159000000000 sodium salts Chemical class 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000000440 bentonite Substances 0.000 claims description 4
- 229910000278 bentonite Inorganic materials 0.000 claims description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 4
- 239000003093 cationic surfactant Substances 0.000 claims description 2
- 239000010433 feldspar Substances 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 17
- 239000010459 dolomite Substances 0.000 description 15
- 229910000514 dolomite Inorganic materials 0.000 description 15
- 239000002736 nonionic surfactant Substances 0.000 description 12
- -1 linoleum Polymers 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- KWIUHFFTVRNATP-UHFFFAOYSA-N Betaine Natural products C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 6
- 229960003237 betaine Drugs 0.000 description 6
- 239000004615 ingredient Substances 0.000 description 6
- 235000017550 sodium carbonate Nutrition 0.000 description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 description 6
- KWIUHFFTVRNATP-UHFFFAOYSA-O N,N,N-trimethylglycinium Chemical compound C[N+](C)(C)CC(O)=O KWIUHFFTVRNATP-UHFFFAOYSA-O 0.000 description 5
- 238000006386 neutralization reaction Methods 0.000 description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 239000002202 Polyethylene glycol Substances 0.000 description 4
- 125000001931 aliphatic group Chemical group 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 239000003599 detergent Substances 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005191 phase separation Methods 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920001223 polyethylene glycol Polymers 0.000 description 4
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical group C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- 229920002125 SokalanĀ® Polymers 0.000 description 3
- 230000002411 adverse Effects 0.000 description 3
- 239000003945 anionic surfactant Substances 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 239000006071 cream Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000003472 neutralizing effect Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 229920000604 Polyethylene Glycol 200 Polymers 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000002280 amphoteric surfactant Substances 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 2
- 238000007046 ethoxylation reaction Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 2
- 239000001095 magnesium carbonate Substances 0.000 description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 239000002888 zwitterionic surfactant Substances 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- ZORQXIQZAOLNGE-UHFFFAOYSA-N 1,1-difluorocyclohexane Chemical compound FC1(F)CCCCC1 ZORQXIQZAOLNGE-UHFFFAOYSA-N 0.000 description 1
- MUHFRORXWCGZGE-KTKRTIGZSA-N 2-hydroxyethyl (z)-octadec-9-enoate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCCO MUHFRORXWCGZGE-KTKRTIGZSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 241001251094 Formica Species 0.000 description 1
- 229920002907 Guar gum Polymers 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 TeflonĀ® Polymers 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 239000001175 calcium sulphate Substances 0.000 description 1
- 235000011132 calcium sulphate Nutrition 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical class CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 229940083124 ganglion-blocking antiadrenergic secondary and tertiary amines Drugs 0.000 description 1
- 125000005456 glyceride group Chemical group 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000000665 guar gum Substances 0.000 description 1
- 229960002154 guar gum Drugs 0.000 description 1
- 235000010417 guar gum Nutrition 0.000 description 1
- 239000000413 hydrolysate Substances 0.000 description 1
- 239000003752 hydrotrope Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- DVEKCXOJTLDBFE-UHFFFAOYSA-N n-dodecyl-n,n-dimethylglycinate Chemical compound CCCCCCCCCCCC[N+](C)(C)CC([O-])=O DVEKCXOJTLDBFE-UHFFFAOYSA-N 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000006072 paste Substances 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- 235000020030 perry Nutrition 0.000 description 1
- 150000004714 phosphonium salts Chemical class 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000005588 protonation Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 1
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- IWMMSZLFZZPTJY-UHFFFAOYSA-M sodium;3-(dodecylamino)propane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCNCCCS([O-])(=O)=O IWMMSZLFZZPTJY-UHFFFAOYSA-M 0.000 description 1
- HWCHICTXVOMIIF-UHFFFAOYSA-M sodium;3-(dodecylamino)propanoate Chemical compound [Na+].CCCCCCCCCCCCNCCC([O-])=O HWCHICTXVOMIIF-UHFFFAOYSA-M 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000001593 sorbitan monooleate Substances 0.000 description 1
- 235000011069 sorbitan monooleate Nutrition 0.000 description 1
- 229940035049 sorbitan monooleate Drugs 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical group OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium Chemical compound [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 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
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/83—Mixtures of non-ionic with anionic compounds
-
- 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
- C11D17/0013—Liquid compositions with insoluble particles in suspension
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
Definitions
- the invention relates to a composition for cleaning hard surfaces.
- the invention relates to a composition comprising Calcium-based anionic surfactant.
- Hard surface cleaning compositions are available in various formats. There was a time when powders were widely used. Then came bars which were shaped like soap bars. Bars are being gradually replaced by liquids and pastes. Abrasive pastes usually contain an anionic surfactant, generally sodium salt of linear alkyl benzene sulphonic acids, a non-ionic surfactant and an abrasive.
- Calcium and magnesium salts of alkyl benzene sulphonic acids provided alternatives to the sodium salts which has been used for several decades.
- sodium salts are prepared by neutralizing the corresponding acids with soda ash or sodium hydroxide.
- the surfactants which are calcium or magnesium salts of linear alkyl benzene sulphonic acids (Ca-LAS and Mg-LAS respectively) are milder, but they are are effective against some of the more common stains.
- Dolomite is an alternative neutralizing agent which results into a mixture of Mg-LAS and Ca-LAS in varying proportions which depends on the concentration and type/grade of dolomite. Some amount of magnesium sulphate and calcium sulphate is also generated which act as in-situ structuring agents in cleansing compositions, especially dish wash bars.
- WO2014/044639 A1 discloses aqueous hand dish wash pastes which contain Na-LAS, calcium carbonate as abrasive and a non-ionic surfactant.
- the compositions do not contain Mg-LAS.
- the combination of Na-LAS and the additional surfactant produces ductile pastes at a constant total surfactant.
- the exemplified compositions are highly alkaline due to presence of significant amount of soda and silicate, a part of which gets used up in neutralisation of LAS acid.
- Ca-LAS as a surfactant is disclosed in alkaline laundry detergent powders ( US4162994 B , Lever Brothers, 1979) as well as non-aqueous scouring powders ( US3772204B , Colgate-Palmolive, 1973).
- compositions which contain Ca-LAS as well as Mg-LAS and which are obtained by neutralisation of LAS-acid with dolomite do not face such a problem.
- hard surface cleaning compositions comprising Ca-LAS as a primary surfactant, but which do not contain more than a particular amount of Mg-LAS and which are stable.
- an aqueous abrasive cleansing composition comprising:
- Hard surfaces include floors, walls, tiles, windows, cupboards, sinks, showers, shower plastified curtains, wash basins, WCs, fixtures and fittings made of different materials like ceramic, vinyl, no-wax vinyl, linoleum, melamine, glass, FormicaĀ®, vitroceramic, plastified wood, metal or any painted or varnished or sealed surface. It also includes household appliances including, but not limited to refrigerators, freezers, washing machines, automatic dryers, ovens, microwave ovens and dishwashers.
- dishes includes glasses, pots, pans, baking dishes and flatware made from ceramic, china, metal, glass, plastic (polyethylene, polypropylene, polystyrene), wood, enamel, InoxĀ®, teflon, or any other material commonly used in the making of articles used for eating and/or cooking.
- plastic polyethylene, polypropylene, polystyrene
- wood enamel, InoxĀ®, teflon, or any other material commonly used in the making of articles used for eating and/or cooking.
- the aqueous abrasive cleansing composition of the present invention comprises calcium salt of linear alkyl benzene sulphonic acid (abbreviated as Ca-LAS).
- abrasive cleansing compositions for hard surface cleaning contain sodium salt of linear alkyl benzene sulphonic acid, often abbreviated as Na-LAS. While such compositions are efficacious, they are also very strong and thereby tend to be harsh to the user's skin.
- compositions containing Na-LAS neutralise linear alkyl benzene sulphonic acid (LAS) with an alkali like sodium carbonate, sodium silicate or sodium hydroxide.
- LAS linear alkyl benzene sulphonic acid
- the material which is widely used is sodium carbonate (also known as soda ash or soda).
- soda ash or soda sodium carbonate
- a stoichiometric excess of soda is made to react with a given amount of LAS acid to produce Na-LAS.
- Excess soda remains in the formulation and serves as a builder or alkaline material. Alkaline compositions provide better grease removal; however, as indicated earlier, they tend to be significantly harsh.
- Ca-LAS provides a milder alternative to Na-LAS but the usual way of making compositions containing Ca-LAS is to react LAS acid with dolomite.
- the known way to make a hard surface cleaning composition containing Ca-LAS as the primary surface-active agent is to mix LAS acid with water to prepare a slurry. Dolomite, usually stoichiometric excess, is then added to the slurry. Sufficient amount of time is allowed to ensure that the acid gets neutralised. Progress of the reaction is periodically checked by determining pH of samples.
- Dolomite is a naturally occurring mineral and the principle member of the dolomites group of minerals. Neutralisation of linear alkyl benzene sulphonic acid (LAS acid) with dolomite results in a mixture of Ca-LAS and Mg-LAS.
- LAS acid linear alkyl benzene sulphonic acid
- compositions containing Ca-LAS made by non-dolomite route leads to unstable products.
- compositions devoid of Mg-LAS are especially prone to separation into solid and liquid phases and this is particularly observed in the case of samples stored at high temperatures, e.g., 40 Ā°C or low temperatures, e.g., 5 Ā°C.
- compositions which are made by non-dolomite route of neutralisation but for that the problem of instability needs to be addressed.
- compositions in accordance with this invention comprise calcium salt of linear alkyl benzene sulphonic acid. It is preferred that compositions in accordance with the invention comprise 1 wt% to 15 wt% calcium salt of linear alkyl benzene sulphonic acid.
- Magnesium salt of linear alkyl benzene sulphonic acid is in an amount not more than 1 % of the amount of said calcium salt. For example, if the total amount of Ca-LAS is 15 wt%, then the maximum amount of Mg-LAS is 0.15 wt%, which amounts to not more than 1% of the amount of the calcium salt.
- aqueous abrasive cleansing compositions of the invention do not contain magnesium salt of linear alkyl benzene sulphonic acid.
- the amount of magnesium salt of linear alkyl benzene sulphonic is from 0 to 1 % of the amount of the calcium salt.
- compositions in accordance with the invention comprise one or more alkoxylated fatty alcohol.
- These are non-ionic surfactants.
- HLB of the alkoxylated fatty alcohol is in the range of 11 to 20 and carbon chain length of said fatty alcohol is in the range of 12 to 16. All non-ionic surfactants have an HLB value. The higher the number, the more hydrophilic the surfactant. On the other hand, surfactants having lower HLB value are more lipophilic.
- Alkoxylated fatty alcohols lend stability to the compositions even in the total absence of Mg-LAS or when the Mg-LAS content is minimal. It is particularly preferred that the degree of ethoxylation in said alkoxylated fatty alcohol is from five to eight moles of ethylene oxide units. Alkoxylated fatty alcohols having degree of ethoxylation from five to eight show particularly good technical effect by stabilizing the compositions which are stored at temperatures higher or lower than the normal room temperature.
- compositions in accordance with the invention comprise 0.5 wt% to 10 wt% of alkoxylated fatty alcohol.
- a combination of one or more such non-ionic surfactants may also be used.
- compositions in accordance with the invention comprise a viscosity building agent which is an abrasive having Moh's index of 0.5 to 7 or a polymer or a combination thereof, in an amount sufficient to provide viscosity of 500 to 2000 cP at 20 Ā°C.
- the viscosity may be measured by any suitable method. It is preferably measured at 20 Ā°C at a shear rate from 1 s -1 to 50 s -1 .
- a HaakeĀ® AR1000 Rheometer with cone and plate assembly is used for the measurement, but any other equivalent machine may be used.
- compositions in accordance with the invention preferably comprise an abrasive having Moh's Index of 0.5 to 7.
- compositions comprise 10 wt% to 50 wt% abrasive.
- abrasive is at least one of bentonite, china clay, calcite or feldspar but any other suitable abrasive or abrasives may be used.
- the average particle size of abrasive is 0.5 to 400 ā m, more preferably 10 to 200 ā m.
- the compositions in accordance with this invention preferably comprise a polymer.
- the purpose of the polymer is to provide some viscosity to the compositions. It is preferred that the polymer is a water-swellable polymer or an associative polymer. It is preferred that the polymer provides the desired viscosity when the pH of the compositions is in the range of 6 to 8. Whenever the polymer is present, it is preferred that the amount thereof is 0.005 to 10 wt%.
- the polymer is one or more of polyacrylic acid, polyacrylates, cross-linked acrylates, guar gum or its derivatives, starch-acrylic grafted copolymers, hydrolysate of starch-acrylonitrile grafted copolymers, crosslinked polyoxyethylene, cross-linked methyl cellulose, sodium carboxymethylcellulose or partially cross-linked water-swellable polymers of polyethylene oxides and polyacrylamide or isobutylene/maleic acid copolymer.
- the compositions in accordance with the invention comprise 0.008 wt% to 5 wt% polymer, more preferably 0.01wt% to 2.5 wt% of the polymer.
- a particularly preferred polymer is AcusolĀ® 880/882.
- compositions in accordance with the invention are aqueous, i.e., water-based. It is preferred that the compositions comprise 20 wt% to 80 wt% water.
- pH of the compositions in accordance with the invention is in the range of 6 to 8 at 20 Ā°C.
- compositions in accordance with this invention comprise less than 1 wt% of strong alkalis which include sodium hydroxide, sodium silicate and sodium carbonate. If the pH of the composition is more than 8, it is likely to adversely affect stability of the product. Similarly, at pH less than 6, there could be protonation of the nonionic surfactants, which eventually could result in unstable compositions.
- compositions in accordance with this invention may contain other ingredients which are disclosed hereinafter.
- compositions in accordance with this invention may contain other surfactants.
- compositions may also become more alkaline and thereby less milder.
- the cleaning composition may further comprise other anionic surfactants, amphoteric and zwitterionic surfactants, provided they do not interfere with the performance or stability of the compositions. It is preferred that the amount of such other surfactants is from 0.1 to 20 wt %.
- compositions in accordance with the invention comprise less than 1 wt% cationic surfactant.
- the total amount of surfactants is not greater than 40 wt%.
- the Active Detergent (AD) level is not greater than 40 %.
- total surfactant means the sum total of all surfactants contained in the compositions, which includes calcium salt of linear alkyl benzene sulphonic acid.
- Suitable amphoteric surfactants are derivatives of aliphatic secondary and tertiary amines containing an alkyl group of 8 to 20 carbon atoms and an aliphatic group substituted by an anionic water-solubilising group, for instance sodium 3-dodecylamino-propionate, sodium 3- dodecylaminopropane-sulphonate and sodium N 2-hydroxy-dodecyl-N-methyltau rate.
- Suitable zwitterionic surfactants include derivatives of aliphatic quaternary ammonium, sulphonium and phosphonium compounds having an aliphatic group of from 8 to 18 carbon atoms and an aliphatic group substituted by an anionic water-solubilising group, for instance betaine and betaine derivatives such as alkyl betaine, in particular C12-C16 alkyl betaine, 3-(N,N-dimethyl-N-hexadecylammonium)-propane 1 - sulphonate betaine, 3- (dodecylmethyl-sulphonium)-propane 1-sulphonate betaine, 3-(cetylmethyl-phosphonium)- propane-1-sulphonate betaine and N,N-dimethyl-N-dodecyl-glycine.
- betaines are the alkylamidopropyl betaines e.g. those wherein the alkylamido group is derived from coconut oil fatty acid
- surfactants can be found in the well-known textbooks: 'Surface Active Agents' Vol.1 , by Schwartz & Perry, Interscience 1949 ; 'Surface Active Agents' Vol.2 by Schwartz, Perry & Berch, Interscience 1958 ; the current edition of 'McCutcheon's Emulsifiers and Detergents' published by Manufacturing Confectioners Company ; 'Tenside-Taschenbuch', H. Stache, 2nd Edn., Carl Hauser Verlag, 1981 .
- compositions according to this invention may include additional ingredients to improve or enhance the in-use performance.
- Such ingredients include colour, fragrance, soil suspending agents, detersive enzymes, compatible bleaching agents, freeze-thaw stabilisers, bactericides, preservatives, hydrotropes and perfumes.
- aqueous hard surface cleaning compositions according to the invention are liquids or creams or pastes, which may be directly applied to the hard surface.
- An example of a commercial cream is CIFĀ® from Unilever.
- the aqueous hard surface cleaning composition according to the invention can be packaged in any suitable container.
- the composition is packaged in a plastic bottle with a detachable closure /pouring spout.
- the bottle may be rigid or deformable.
- a deformable bottle allows the bottle to be squeezed for dispensing.
- clear bottles they may be made of PET or Polyethylene.
- the bottle may be provided with one or more labels, or with a shrink-wrap sleeve, which is desirably at least partially transparent, for example 50% of the area of the sleeve is transparent.
- the adhesive used for any transparent label should preferably not adversely affect the transparency.
- the compositions can also be packed in other formats like sachets and pouches.
- Example 1 Preparation of aqueous hard surface cleaning cream composition devoid of magnesium salt of linear alkyl benzene sulphonic acid:
- a plastic beaker of suitable size was positioned in alignment with an overhead stirrer.
- 550 g of demineralised water was heated to 65 to 75 Ā°C. About half the quantity of water was then added to the first mentioned beaker and it was stirred at about 150 rpm. This was followed by addition of 5 g coco fatty acids and 0.2 g silicone oil to suppress the foam. Thereafter, 200 g calcite was added to it to form a mix, which was stirred for about five minutes. Thereafter, 33 g of commercial linear alkyl benzene sulphonic acid (LAS-acid) was added slowly. A nonionic surfactant was then added and the mix was stirred for few minutes.
- LAS-acid commercial linear alkyl benzene sulphonic acid
- composition 4 (of table 1), 50 g bentonite clay was also added to get the right viscosity.
- a compositions containing a polymer were also prepared.
- the procedure (step 2) was as follows: In another plastic container, the balance amount of water 450 g was added. To this 0.3 g of polymer was added and stirred for 5 minutes at 150 rpm. To this, the premix was added and stirred for five minutes. This was followed by addition of 350 g of calcite and the contents were stirred for twenty minutes.
- Table 1 All the compositions of table 1 were subjected to stability studies. Samples of each composition were stored at 5 Ā°C, 28 Ā°C and 40 Ā°C for 30 days. Observations recorded after 30 days are summarised in table 2.
- composition Z indicates that alkoxylated fatty alcohols having HLB of 11 to 20 do not provide desired results. Comparison of the data for composition Z and composition 1 indicates that it is a combination of the right chain length and the right HLB which provides technical effect.
- HLB 11 to 20
- carbon chain length C12 to C16
Description
- The invention relates to a composition for cleaning hard surfaces. In particular, the invention relates to a composition comprising Calcium-based anionic surfactant.
- Hard surface cleaning compositions are available in various formats. There was a time when powders were widely used. Then came bars which were shaped like soap bars. Bars are being gradually replaced by liquids and pastes. Abrasive pastes usually contain an anionic surfactant, generally sodium salt of linear alkyl benzene sulphonic acids, a non-ionic surfactant and an abrasive.
- It is observed that pH of such cleansing compositions is often very high due to the presence of sodium carbonate (soda). Therefore, they are harsh and not generally recommended for use on substrates such as sunmica.
- This led to the rise of milder cleansing compositions that have close to neutral pH.
- Calcium and magnesium salts of alkyl benzene sulphonic acids provided alternatives to the sodium salts which has been used for several decades. Usually sodium salts are prepared by neutralizing the corresponding acids with soda ash or sodium hydroxide.
- The surfactants which are calcium or magnesium salts of linear alkyl benzene sulphonic acids (Ca-LAS and Mg-LAS respectively) are milder, but they are are effective against some of the more common stains.
- When it is desired to prepare calcium or magnesium salts of alkyl benzene sulphonic acids in bulk quantities, usually calcite, magnesium carbonate or other equivalent alkaline substances are used to neutralise the corresponding precursor sulphonic acids.
- Dolomite is an alternative neutralizing agent which results into a mixture of Mg-LAS and Ca-LAS in varying proportions which depends on the concentration and type/grade of dolomite. Some amount of magnesium sulphate and calcium sulphate is also generated which act as in-situ structuring agents in cleansing compositions, especially dish wash bars.
- Indian patent application
IN225/MUM/2000 A - It is observed that there is significant variation in the proportion of calcium carbonate and magnesium carbonate in dolomites of different grades which depends inter alia on the place from which the dolomite is mined.
- Therefore, whenever dolomite is used for neutralising LAS-acid, the proportion of Ca-LAS and Mg-LAS also varies accordingly. While minor variations are acceptable, a major variation can have adverse effects on the performance of the end-use cleansing compositions.
-
WO2014/044639 A1 (Henkel) discloses aqueous hand dish wash pastes which contain Na-LAS, calcium carbonate as abrasive and a non-ionic surfactant. The compositions do not contain Mg-LAS. The combination of Na-LAS and the additional surfactant produces ductile pastes at a constant total surfactant. The exemplified compositions are highly alkaline due to presence of significant amount of soda and silicate, a part of which gets used up in neutralisation of LAS acid. - Similar compositions are also disclosed in
WO14086634 A1 - The use of Ca-LAS as a surfactant is disclosed in alkaline laundry detergent powders (
US4162994 B , Lever Brothers, 1979) as well as non-aqueous scouring powders (US3772204B , Colgate-Palmolive, 1973). - We have determined that cleansing compositions having Ca-LAS but no Mg-LAS are particularly prone to phase separation. This is presumably because Mg-LAS provides some stability to Ca-LAS. We could not find any published solution for the technical problem.
- Therefore, compositions which contain Ca-LAS as well as Mg-LAS and which are obtained by neutralisation of LAS-acid with dolomite, do not face such a problem.
- Therefore, there is need for hard surface cleaning compositions comprising Ca-LAS as a primary surfactant, but which do not contain more than a particular amount of Mg-LAS and which are stable.
- It has been determined that certain non-ionic surfactants having particular features can be used to stabilize the compositions and thereby provide a technical solution to the problem.
- Disclosed in accordance with a first aspect is an aqueous abrasive cleansing composition comprising:
- (i) calcium salt of linear alkyl benzene sulphonic acid;
- (ii) magnesium salt of linear alkyl benzene sulphonic acid in an amount not more than 1 % of the amount of said calcium salt, and,
- (iii) alkoxylated fatty alcohol;
- The invention will now be explained in details.
- Hard surfaces include floors, walls, tiles, windows, cupboards, sinks, showers, shower plastified curtains, wash basins, WCs, fixtures and fittings made of different materials like ceramic, vinyl, no-wax vinyl, linoleum, melamine, glass, FormicaĀ®, vitroceramic, plastified wood, metal or any painted or varnished or sealed surface. It also includes household appliances including, but not limited to refrigerators, freezers, washing machines, automatic dryers, ovens, microwave ovens and dishwashers. The term dishes includes glasses, pots, pans, baking dishes and flatware made from ceramic, china, metal, glass, plastic (polyethylene, polypropylene, polystyrene), wood, enamel, InoxĀ®, teflon, or any other material commonly used in the making of articles used for eating and/or cooking.
- The aqueous abrasive cleansing composition of the present invention comprises calcium salt of linear alkyl benzene sulphonic acid (abbreviated as Ca-LAS).
- Usually abrasive cleansing compositions for hard surface cleaning contain sodium salt of linear alkyl benzene sulphonic acid, often abbreviated as Na-LAS. While such compositions are efficacious, they are also very strong and thereby tend to be harsh to the user's skin.
- The usual way of making compositions containing Na-LAS is to neutralise linear alkyl benzene sulphonic acid (LAS) with an alkali like sodium carbonate, sodium silicate or sodium hydroxide. The material which is widely used is sodium carbonate (also known as soda ash or soda). Usually a stoichiometric excess of soda is made to react with a given amount of LAS acid to produce Na-LAS. Excess soda remains in the formulation and serves as a builder or alkaline material. Alkaline compositions provide better grease removal; however, as indicated earlier, they tend to be significantly harsh.
- Ca-LAS provides a milder alternative to Na-LAS but the usual way of making compositions containing Ca-LAS is to react LAS acid with dolomite. The known way to make a hard surface cleaning composition containing Ca-LAS as the primary surface-active agent is to mix LAS acid with water to prepare a slurry. Dolomite, usually stoichiometric excess, is then added to the slurry. Sufficient amount of time is allowed to ensure that the acid gets neutralised. Progress of the reaction is periodically checked by determining pH of samples.
- Dolomite is a naturally occurring mineral and the principle member of the dolomites group of minerals. Neutralisation of linear alkyl benzene sulphonic acid (LAS acid) with dolomite results in a mixture of Ca-LAS and Mg-LAS.
- However, this leads to a technical problem which has two aspects.
- On the one hand there is need for milder hard surface cleaning compositions which contain Ca-LAS instead of Na-LAS. On the other hand, there is need for a non-dolomite route to neutralise LAS-acid. When dolomite is used to neutralise LAS acid, a part of sulphonic acid forms Mg-LAS, which stabilises the formulations.
- However, the absence of Mg-LAS in compositions containing Ca-LAS made by non-dolomite route leads to unstable products. In particular, the compositions devoid of Mg-LAS are especially prone to separation into solid and liquid phases and this is particularly observed in the case of samples stored at high temperatures, e.g., 40 Ā°C or low temperatures, e.g., 5 Ā°C.
- On the other hand, the availability of dolomite of consistent specifications is also a problem from supply chain perspective.
- Therefore, there is need for compositions which are made by non-dolomite route of neutralisation but for that the problem of instability needs to be addressed.
- We have determined that certain non-ionic surfactants having particular features can stabilize such compositions.
- The aqueous abrasive cleansing compositions in accordance with this invention comprise calcium salt of linear alkyl benzene sulphonic acid. It is preferred that compositions in accordance with the invention comprise 1 wt% to 15 wt% calcium salt of linear alkyl benzene sulphonic acid.
- Magnesium salt of linear alkyl benzene sulphonic acid is in an amount not more than 1 % of the amount of said calcium salt. For example, if the total amount of Ca-LAS is 15 wt%, then the maximum amount of Mg-LAS is 0.15 wt%, which amounts to not more than 1% of the amount of the calcium salt.
- However, it is preferred that the aqueous abrasive cleansing compositions of the invention do not contain magnesium salt of linear alkyl benzene sulphonic acid.
- Thus, the amount of magnesium salt of linear alkyl benzene sulphonic is from 0 to 1 % of the amount of the calcium salt.
- Compositions in accordance with the invention comprise one or more alkoxylated fatty alcohol. These are non-ionic surfactants. HLB of the alkoxylated fatty alcohol is in the range of 11 to 20 and carbon chain length of said fatty alcohol is in the range of 12 to 16. All non-ionic surfactants have an HLB value. The higher the number, the more hydrophilic the surfactant. On the other hand, surfactants having lower HLB value are more lipophilic.
- Alkoxylated fatty alcohols lend stability to the compositions even in the total absence of Mg-LAS or when the Mg-LAS content is minimal. It is particularly preferred that the degree of ethoxylation in said alkoxylated fatty alcohol is from five to eight moles of ethylene oxide units. Alkoxylated fatty alcohols having degree of ethoxylation from five to eight show particularly good technical effect by stabilizing the compositions which are stored at temperatures higher or lower than the normal room temperature.
- It is preferred that compositions in accordance with the invention comprise 0.5 wt% to 10 wt% of alkoxylated fatty alcohol. A combination of one or more such non-ionic surfactants may also be used.
- Most hard surface cleaning compositions like dish wash composition and kitchen cleansers need a certain amount of viscosity inter alia for ease of application and spreadability.
- Therefore it is preferred that the compositions in accordance with the invention comprise a viscosity building agent which is an abrasive having Moh's index of 0.5 to 7 or a polymer or a combination thereof, in an amount sufficient to provide viscosity of 500 to 2000 cP at 20 Ā°C.
- The viscosity may be measured by any suitable method. It is preferably measured at 20 Ā°C at a shear rate from 1 s-1 to 50 s-1. A HaakeĀ® AR1000 Rheometer with cone and plate assembly is used for the measurement, but any other equivalent machine may be used.
- The compositions in accordance with the invention preferably comprise an abrasive having Moh's Index of 0.5 to 7.
- It is preferred that compositions comprise 10 wt% to 50 wt% abrasive. Preferably the abrasive is at least one of bentonite, china clay, calcite or feldspar but any other suitable abrasive or abrasives may be used.
- It is preferred that the average particle size of abrasive is 0.5 to 400 Āµm, more preferably 10 to 200 Āµm.
- As an alternative to the abrasive, or in addition to the abrasive, the compositions in accordance with this invention preferably comprise a polymer. The purpose of the polymer is to provide some viscosity to the compositions. It is preferred that the polymer is a water-swellable polymer or an associative polymer. It is preferred that the polymer provides the desired viscosity when the pH of the compositions is in the range of 6 to 8. Whenever the polymer is present, it is preferred that the amount thereof is 0.005 to 10 wt%. It is preferred that the polymer is one or more of polyacrylic acid, polyacrylates, cross-linked acrylates, guar gum or its derivatives, starch-acrylic grafted copolymers, hydrolysate of starch-acrylonitrile grafted copolymers, crosslinked polyoxyethylene, cross-linked methyl cellulose, sodium carboxymethylcellulose or partially cross-linked water-swellable polymers of polyethylene oxides and polyacrylamide or isobutylene/maleic acid copolymer. Whenever present, it is preferred that the compositions in accordance with the invention comprise 0.008 wt% to 5 wt% polymer, more preferably 0.01wt% to 2.5 wt% of the polymer. A particularly preferred polymer is AcusolĀ® 880/882.
- Compositions in accordance with the invention are aqueous, i.e., water-based. It is preferred that the compositions comprise 20 wt% to 80 wt% water.
- It is preferred that pH of the compositions in accordance with the invention is in the range of 6 to 8 at 20 Ā°C.
- The compositions in accordance with this invention comprise less than 1 wt% of strong alkalis which include sodium hydroxide, sodium silicate and sodium carbonate. If the pH of the composition is more than 8, it is likely to adversely affect stability of the product. Similarly, at pH less than 6, there could be protonation of the nonionic surfactants, which eventually could result in unstable compositions.
- The compositions in accordance with this invention may contain other ingredients which are disclosed hereinafter.
- Compositions in accordance with this invention may contain other surfactants.
- However, it is preferred that they comprise less than 1 wt% sodium salt of linear alkyl benzene sulphonic acid (Na-LAS). Any excess amount of Na-LAS coud tend to destabilise the compositions due to exchange of calcium ions with the sodium ions. Further, the compositions may also become more alkaline and thereby less milder.
- The cleaning composition may further comprise other anionic surfactants, amphoteric and zwitterionic surfactants, provided they do not interfere with the performance or stability of the compositions. It is preferred that the amount of such other surfactants is from 0.1 to 20 wt %.
- Preferably the compositions in accordance with the invention comprise less than 1 wt% cationic surfactant.
- It is further preferred that in the compositions according to the invention, the total amount of surfactants is not greater than 40 wt%. In other words, the Active Detergent (AD) level is not greater than 40 %. The term total surfactant means the sum total of all surfactants contained in the compositions, which includes calcium salt of linear alkyl benzene sulphonic acid.
- Suitable amphoteric surfactants are derivatives of aliphatic secondary and tertiary amines containing an alkyl group of 8 to 20 carbon atoms and an aliphatic group substituted by an anionic water-solubilising group, for instance sodium 3-dodecylamino-propionate, sodium 3- dodecylaminopropane-sulphonate and sodium N 2-hydroxy-dodecyl-N-methyltau rate.
- Examples of suitable zwitterionic surfactants include derivatives of aliphatic quaternary ammonium, sulphonium and phosphonium compounds having an aliphatic group of from 8 to 18 carbon atoms and an aliphatic group substituted by an anionic water-solubilising group, for instance betaine and betaine derivatives such as alkyl betaine, in particular C12-C16 alkyl betaine, 3-(N,N-dimethyl-N-hexadecylammonium)-propane 1 - sulphonate betaine, 3- (dodecylmethyl-sulphonium)-propane 1-sulphonate betaine, 3-(cetylmethyl-phosphonium)- propane-1-sulphonate betaine and N,N-dimethyl-N-dodecyl-glycine. Other well known betaines are the alkylamidopropyl betaines e.g. those wherein the alkylamido group is derived from coconut oil fatty acids.
- Further examples of suitable surfactants can be found in the well-known textbooks: 'Surface Active Agents' Vol.1 , by Schwartz & Perry, Interscience 1949; 'Surface Active Agents' Vol.2 by Schwartz, Perry & Berch, Interscience 1958; the current edition of 'McCutcheon's Emulsifiers and Detergents' published by Manufacturing Confectioners Company; 'Tenside-Taschenbuch', H. Stache, 2nd Edn., Carl Hauser Verlag, 1981.
- Compositions according to this invention may include additional ingredients to improve or enhance the in-use performance.
- Such ingredients include colour, fragrance, soil suspending agents, detersive enzymes, compatible bleaching agents, freeze-thaw stabilisers, bactericides, preservatives, hydrotropes and perfumes.
- It is preferred that the aqueous hard surface cleaning compositions according to the invention are liquids or creams or pastes, which may be directly applied to the hard surface. An example of a commercial cream is CIFĀ® from Unilever.
- The aqueous hard surface cleaning composition according to the invention can be packaged in any suitable container. Preferably, the composition is packaged in a plastic bottle with a detachable closure /pouring spout. The bottle may be rigid or deformable. A deformable bottle allows the bottle to be squeezed for dispensing. If clear bottles are used, they may be made of PET or Polyethylene. The bottle may be provided with one or more labels, or with a shrink-wrap sleeve, which is desirably at least partially transparent, for example 50% of the area of the sleeve is transparent. The adhesive used for any transparent label should preferably not adversely affect the transparency. The compositions can also be packed in other formats like sachets and pouches.
- The invention will now be further described with reference to the following non-limiting examples.
- A plastic beaker of suitable size was positioned in alignment with an overhead stirrer. In another beaker, 550 g of demineralised water was heated to 65 to 75 Ā°C. About half the quantity of water was then added to the first mentioned beaker and it was stirred at about 150 rpm. This was followed by addition of 5 g coco fatty acids and 0.2 g silicone oil to suppress the foam. Thereafter, 200 g calcite was added to it to form a mix, which was stirred for about five minutes. Thereafter, 33 g of commercial linear alkyl benzene sulphonic acid (LAS-acid) was added slowly. A nonionic surfactant was then added and the mix was stirred for few minutes.
- Thereafter, the balance amount of water, (275 g) and 200 g calcite was added to the beaker and the contents were stirred for five more minutes.
- In the composition 4 (of table 1), 50 g bentonite clay was also added to get the right viscosity.
- A compositions containing a polymer (in addition to calcite) were also prepared. In this case, the procedure (step 2) was as follows:
In another plastic container, the balance amount of water 450 g was added. To this 0.3 g of polymer was added and stirred for 5 minutes at 150 rpm. To this, the premix was added and stirred for five minutes. This was followed by addition of 350 g of calcite and the contents were stirred for twenty minutes. - The final formulations of all the compositions is summarised in table 1.
Table 1 Ingredient Composition code and wt% of ingredients X Y Z 1 2 3 4 5 Ca-LAS 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 Mg-LAS 0 0 0 0 0 0 0 0 Calcite 40.0 40.0 40.0 40.0 40.0 40.0 40.0 40.0 Bentonite 0 0 0 0 0 0 5.0 0 Acusol 0 0 0 0 0 0 0 0.01 Water and other minors 55.0 55.0 55.0 55.0 55.0 55.0 50.0 54.9 SpanĀ® 80 1.7 0 0 0 0 0 0 0 PEG-200 0 1.7 0 0 0 0 0 0 AccononĀ® MC 8-2 0 0 1.7 0 0.5 0 0 0 LialetĀ® 125 5.5 0 0 0 1.7 1.7 0 0 0 LialetĀ® 123-8 0 0 0 0 0 1.7 1.7 1.7 -
- SpanĀ® 80 is Sorbitan monooleate, a type of non-ionic surfactant from Croda. HLB value of this surfactant is 4.3 Ā± 1. Its carbon chain length is 24 to 26
- PEG-200 is polyethylene glycol of molecular weight 200 Daltons coupled with oleic acid. Polyethylene glycol mono-oleate is also a non-ionic surfactant and its HLB value is 8 to 9.3.
- AccononĀ® MC8-2 Ex. Abitec, is a non-ionic surfactant which is Polyoxyethylene (8) Caprylic/Capric Glycerides. Its HLB value is 13 to 15 and it has carbon chain length of 8 to 10.
- LialetĀ® 125-5 Ex. Sasol is fatty alcohol polyethylene glycol ether (alkoxylated fatty alcohol) based on LIALĀ® 125 and ethylene oxide (5 moles). Its HLB value is about 11 and its carbon chain length is 12 to 16.
- LialetĀ® 123-8 Ex. Sasol is fatty alcohol polyethylene glycol ether (alkoxylated fatty alcohol) based on LIALĀ® 123 and ethylene oxide (8 moles). Its HLB value is about 12 and its carbon chain length is 12 to 16.
- All the compositions of table 1 were subjected to stability studies. Samples of each composition were stored at 5 Ā°C, 28 Ā°C and 40 Ā°C for 30 days. Observations recorded after 30 days are summarised in table 2.
Table 2 Storage Temperature/Ā°C Composition of Table 1 X Y Z 1 2 3 4 5 5 Yes Yes Yes Yes No No No No 28 Yes Yes Yes No No No No No 40 Yes Yes Yes No No No No No Initial Viscosity/cP - - - 500 500 520 1150 1400 pH 6-8 6-8 6-8 6-8 6-8 6-8 6-8 6-8 -
- (1) Yes/No refers to phase separation. "Yes" implies that there was phase separation.
- (2) Where phase separation was observed, the compositions separated into an aqueous phase and solid phase. It was not possible to measure viscosity.
- The data in table 2 when read-with the formulations of table 1, clearly indicates that compositions outside the scope of the present invention (X, Y and Z) are unstable under all conditions.
- In particular, the data pertaining to composition Z indicates that alkoxylated fatty alcohols having HLB of 11 to 20 do not provide desired results. Comparison of the data for composition Z and composition 1 indicates that it is a combination of the right chain length and the right HLB which provides technical effect.
- The right balance of HLB (11 to 20) and carbon chain length (C12 to C16) provides optimal stability (Compositions 1, 2, 3, 4 and 5).
Claims (12)
- An aqueous abrasive cleansing composition comprising:(i) calcium salt of linear alkyl benzene sulphonic acid;(ii) magnesium salt of linear alkyl benzene sulphonic acid in an amount not more than 1 % of the amount of said calcium salt, and,(iii) alkoxylated fatty alcohol;wherein HLB of said alkoxylated fatty alcohol is in the range of 11 to 20 and carbon chain length of said fatty alcohol is in the range of 12 to 16.
- A composition as claimed in claim 1 comprising 1 wt% to 15 wt% calcium salt of linear alkyl benzene sulphonic acid.
- A composition as claimed in claim 1 or 2 comprising 0.5 wt% to 10 wt% alkoxylated fatty alcohol.
- A composition as claimed in any one of the preceding claims 1 to 3 wherein pH of said composition is in the range of 6 to 8 at 20 Ā°C.
- A composition as claimed in any one of the preceding claims 1 to 4 wherein said composition comprises less than 1 wt% sodium salt of linear alkyl benzene sulphonic acid.
- A composition as claimed in any one of the preceding claims 1 to 5 comprising a viscosity building agent which is an abrasive having Moh's index of 0.5 to 7 or a polymer or a combination thereof, in an amount sufficient to provide viscosity of 500 to 2000 cP at 20 Ā°C.
- A composition as claimed in claim 6 comprising 10 wt% to 50 wt% of said abrasive.
- A composition as claimed in claim 6 or 7 wherein said abrasive is at least one of bentonite, china clay, calcite or feldspar.
- A composition as claimed in claim 6 wherein said polymer is a water-swellable polymer or an associative polymer.
- A composition as claimed in any one of the preceding claims 1 to 9 comprising 20 wt% to 80 wt% water.
- A composition as claimed in any one of the preceding claims 1 to 10 wherein said composition comprises less than 1 wt% cationic surfactant.
- A composition as claimed in any one of the preceding claims 1 to 11 wherein the total amount of surfactant in said composition is not greater than 40 wt%.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL16760453T PL3350298T3 (en) | 2015-09-15 | 2016-08-31 | Aqueous hard surface cleaning composition |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP2015185171 | 2015-09-15 | ||
PCT/EP2016/070512 WO2017045924A1 (en) | 2015-09-15 | 2016-08-31 | Aqueous hard surface cleaning composition |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3350298A1 EP3350298A1 (en) | 2018-07-25 |
EP3350298B1 true EP3350298B1 (en) | 2018-12-12 |
Family
ID=62584861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16760453.7A Active EP3350298B1 (en) | 2015-09-15 | 2016-08-31 | Aqueous hard surface cleaning composition |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3350298B1 (en) |
PL (1) | PL3350298T3 (en) |
TR (1) | TR201819968T4 (en) |
-
2016
- 2016-08-31 EP EP16760453.7A patent/EP3350298B1/en active Active
- 2016-08-31 TR TR2018/19968T patent/TR201819968T4/en unknown
- 2016-08-31 PL PL16760453T patent/PL3350298T3/en unknown
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
EP3350298A1 (en) | 2018-07-25 |
PL3350298T3 (en) | 2019-07-31 |
TR201819968T4 (en) | 2019-01-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
IE59145B1 (en) | Cleaning compositions | |
JPH11501067A (en) | Concentrated liquid gel detergent for dishwashing | |
EP3039111B2 (en) | Aqueous liquid compositions | |
FI91277B (en) | Aqueous thixotropic detergent composition for an automatic dishwasher, process for its preparation, and method for washing dishes | |
WO2004046292A1 (en) | Improved detergent composition | |
AU2016321761B2 (en) | Aqueous hard surface cleaning composition | |
JPH01132695A (en) | Aqueous liquid phosphorus free or low detergent composition | |
JP5719077B1 (en) | Liquid detergent composition for dishwashers | |
EP3541909B1 (en) | Aqueous hard surface cleaning composition | |
CN108603141B (en) | Dishwashing composition comprising a washably activated antifoam agent | |
EP3350298B1 (en) | Aqueous hard surface cleaning composition | |
AU615517B2 (en) | Detergent compositions | |
EA041282B1 (en) | WATER COMPOSITION FOR CLEANING HARD SURFACES | |
AU647912B2 (en) | Linear viscoelastic aqueous liquid detergent composition, especially for automatic dishwashers | |
US6566321B1 (en) | Low foaming washing liquid | |
EP3292191B1 (en) | Alkaline dishwash composition | |
EP3191573B1 (en) | Paste composition for cleaning hard surfaces | |
WO2023041471A1 (en) | An alkaline hard surface cleaning composition | |
PL188588B1 (en) | Alcoholate containing cleaning agent | |
WO2016118096A1 (en) | Aqueous liquid cleaning compositions comprising bleaching agent and abrasive particles | |
WO2015067438A1 (en) | Hard surface cleaning composition | |
CA2066536A1 (en) | Viscoelastic aqueous liquid detergent composition, especially for automatic dishwashers of improved dispensability | |
EP3268459A1 (en) | Stable concentrated cleansing compositions for hard surfaces |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20180206 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20180810 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 1075978 Country of ref document: AT Kind code of ref document: T Effective date: 20181215 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602016008267 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20181212 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181212 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190312 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181212 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190312 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181212 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181212 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181212 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 1075978 Country of ref document: AT Kind code of ref document: T Effective date: 20181212 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190313 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181212 Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181212 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181212 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181212 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181212 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190412 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181212 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190412 Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181212 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181212 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181212 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602016008267 Country of ref document: DE |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181212 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181212 |
|
26N | No opposition filed |
Effective date: 20190913 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181212 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190831 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190831 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190831 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20190831 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190831 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190831 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181212 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20160831 Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181212 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 602016008267 Country of ref document: DE Owner name: UNILEVER GLOBAL IP LIMITED, WIRRAL, GB Free format text: FORMER OWNER: UNILEVER N.V., ROTTERDAM, NL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181212 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: 732E Free format text: REGISTERED BETWEEN 20220127 AND 20220202 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181212 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230425 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: TR Payment date: 20230825 Year of fee payment: 8 Ref country code: IT Payment date: 20230822 Year of fee payment: 8 Ref country code: GB Payment date: 20230822 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: PL Payment date: 20230818 Year of fee payment: 8 Ref country code: FR Payment date: 20230825 Year of fee payment: 8 Ref country code: DE Payment date: 20230821 Year of fee payment: 8 |