CA2317544A1 - Hard surface cleaners - Google Patents
Hard surface cleaners Download PDFInfo
- Publication number
- CA2317544A1 CA2317544A1 CA002317544A CA2317544A CA2317544A1 CA 2317544 A1 CA2317544 A1 CA 2317544A1 CA 002317544 A CA002317544 A CA 002317544A CA 2317544 A CA2317544 A CA 2317544A CA 2317544 A1 CA2317544 A1 CA 2317544A1
- Authority
- CA
- Canada
- Prior art keywords
- polymer
- compositions
- composition according
- surfactant
- nonionic
- 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 claims abstract description 97
- 239000006096 absorbing agent Substances 0.000 claims abstract description 36
- 238000004140 cleaning Methods 0.000 claims abstract description 28
- 239000002736 nonionic surfactant Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229920006318 anionic polymer Polymers 0.000 claims abstract description 7
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229920000642 polymer Polymers 0.000 claims description 40
- 239000004094 surface-active agent Substances 0.000 claims description 20
- 239000003093 cationic surfactant Substances 0.000 claims description 17
- 239000002904 solvent Substances 0.000 claims description 10
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 8
- 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 5
- DXGLGDHPHMLXJC-UHFFFAOYSA-N oxybenzone Chemical compound OC1=CC(OC)=CC=C1C(=O)C1=CC=CC=C1 DXGLGDHPHMLXJC-UHFFFAOYSA-N 0.000 claims description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 4
- 239000005977 Ethylene Substances 0.000 claims description 4
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- XJRBAMWJDBPFIM-UHFFFAOYSA-N methyl vinyl ether Chemical compound COC=C XJRBAMWJDBPFIM-UHFFFAOYSA-N 0.000 claims description 4
- 229920002125 Sokalan® Polymers 0.000 claims description 3
- 150000008366 benzophenones Chemical class 0.000 claims description 3
- 229960000655 ensulizole Drugs 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 239000004584 polyacrylic acid Substances 0.000 claims description 3
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 claims description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000000178 monomer Substances 0.000 claims description 2
- 229920000141 poly(maleic anhydride) Polymers 0.000 claims description 2
- ANJLMAHUPYCFQY-UHFFFAOYSA-N 4-phenyl-1h-benzimidazole-2-sulfonic acid Chemical compound C=12NC(S(=O)(=O)O)=NC2=CC=CC=1C1=CC=CC=C1 ANJLMAHUPYCFQY-UHFFFAOYSA-N 0.000 claims 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims 1
- -1 aromatic sulphonate salt Chemical class 0.000 abstract description 10
- 239000003752 hydrotrope Substances 0.000 abstract description 10
- QUCDWLYKDRVKMI-UHFFFAOYSA-M sodium;3,4-dimethylbenzenesulfonate Chemical compound [Na+].CC1=CC=C(S([O-])(=O)=O)C=C1C QUCDWLYKDRVKMI-UHFFFAOYSA-M 0.000 abstract description 4
- 230000000254 damaging effect Effects 0.000 abstract description 2
- 239000003960 organic solvent Substances 0.000 abstract description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 abstract 1
- 239000000047 product Substances 0.000 description 29
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 11
- 239000000463 material Substances 0.000 description 11
- 150000001298 alcohols Chemical class 0.000 description 10
- 150000001875 compounds Chemical class 0.000 description 10
- 239000003945 anionic surfactant Substances 0.000 description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- 125000000217 alkyl group Chemical group 0.000 description 8
- 238000009472 formulation Methods 0.000 description 8
- 230000008901 benefit Effects 0.000 description 7
- 239000003599 detergent Substances 0.000 description 7
- 230000000845 anti-microbial effect Effects 0.000 description 6
- 239000004599 antimicrobial Substances 0.000 description 6
- 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 5
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 5
- 239000007859 condensation product Substances 0.000 description 5
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 5
- 239000000077 insect repellent Substances 0.000 description 5
- 239000000344 soap Substances 0.000 description 5
- 229910052708 sodium Inorganic materials 0.000 description 5
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- 230000000052 comparative effect Effects 0.000 description 4
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- XMGQYMWWDOXHJM-UHFFFAOYSA-N limonene Chemical compound CC(=C)C1CCC(C)=CC1 XMGQYMWWDOXHJM-UHFFFAOYSA-N 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- KWIUHFFTVRNATP-UHFFFAOYSA-N Betaine Natural products C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- KWIUHFFTVRNATP-UHFFFAOYSA-O N,N,N-trimethylglycinium Chemical compound C[N+](C)(C)CC(O)=O KWIUHFFTVRNATP-UHFFFAOYSA-O 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000011358 absorbing material Substances 0.000 description 3
- 229910052783 alkali metal Inorganic materials 0.000 description 3
- 125000002877 alkyl aryl group Chemical group 0.000 description 3
- 239000002280 amphoteric surfactant Substances 0.000 description 3
- 150000008064 anhydrides Chemical class 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- DMSMPAJRVJJAGA-UHFFFAOYSA-N benzo[d]isothiazol-3-one Chemical group C1=CC=C2C(=O)NSC2=C1 DMSMPAJRVJJAGA-UHFFFAOYSA-N 0.000 description 3
- 229960003237 betaine Drugs 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 125000002091 cationic group Chemical group 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 229940096386 coconut alcohol Drugs 0.000 description 3
- 210000003298 dental enamel Anatomy 0.000 description 3
- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- 239000000194 fatty acid Substances 0.000 description 3
- 229930195729 fatty acid Natural products 0.000 description 3
- 150000004665 fatty acids Chemical class 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 150000007524 organic acids Chemical class 0.000 description 3
- 229960001173 oxybenzone Drugs 0.000 description 3
- 239000002304 perfume Substances 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- 239000003755 preservative agent Substances 0.000 description 3
- 230000002335 preservative effect Effects 0.000 description 3
- 150000003505 terpenes Chemical class 0.000 description 3
- 239000004753 textile Substances 0.000 description 3
- DTGKSKDOIYIVQL-WEDXCCLWSA-N (+)-borneol Chemical compound C1C[C@@]2(C)[C@@H](O)C[C@@H]1C2(C)C DTGKSKDOIYIVQL-WEDXCCLWSA-N 0.000 description 2
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 description 2
- 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
- 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
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 description 2
- RUPBZQFQVRMKDG-UHFFFAOYSA-M Didecyldimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCC[N+](C)(C)CCCCCCCCCC RUPBZQFQVRMKDG-UHFFFAOYSA-M 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 239000004907 Macro-emulsion Substances 0.000 description 2
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- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- KGEKLUUHTZCSIP-HOSYDEDBSA-N [(1s,4s,6r)-1,7,7-trimethyl-6-bicyclo[2.2.1]heptanyl] acetate Chemical compound C1C[C@]2(C)[C@H](OC(=O)C)C[C@H]1C2(C)C KGEKLUUHTZCSIP-HOSYDEDBSA-N 0.000 description 2
- 238000002835 absorbance Methods 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
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- 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 description 2
- 125000005605 benzo group Chemical group 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- CKDOCTFBFTVPSN-UHFFFAOYSA-N borneol Natural products C1CC2(C)C(C)CC1C2(C)C CKDOCTFBFTVPSN-UHFFFAOYSA-N 0.000 description 2
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- ULDHMXUKGWMISQ-UHFFFAOYSA-N carvone Chemical compound CC(=C)C1CC=C(C)C(=O)C1 ULDHMXUKGWMISQ-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- NEHNMFOYXAPHSD-UHFFFAOYSA-N citronellal Chemical compound O=CCC(C)CCC=C(C)C NEHNMFOYXAPHSD-UHFFFAOYSA-N 0.000 description 2
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- 239000003240 coconut oil Substances 0.000 description 2
- RWGFKTVRMDUZSP-UHFFFAOYSA-N cumene Chemical compound CC(C)C1=CC=CC=C1 RWGFKTVRMDUZSP-UHFFFAOYSA-N 0.000 description 2
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- DTGKSKDOIYIVQL-UHFFFAOYSA-N dl-isoborneol Natural products C1CC2(C)C(O)CC1C2(C)C DTGKSKDOIYIVQL-UHFFFAOYSA-N 0.000 description 2
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- UVCJGUGAGLDPAA-UHFFFAOYSA-N ensulizole Chemical compound N1C2=CC(S(=O)(=O)O)=CC=C2N=C1C1=CC=CC=C1 UVCJGUGAGLDPAA-UHFFFAOYSA-N 0.000 description 2
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- VQJMAIZOEPPELO-KYGIZGOZSA-N (1S,2S,6R,14R,15R,16R)-5-(cyclopropylmethyl)-16-(2-hydroxy-5-methylhexan-2-yl)-15-methoxy-13-oxa-5-azahexacyclo[13.2.2.12,8.01,6.02,14.012,20]icosa-8(20),9,11-trien-11-ol hydrochloride Chemical compound Cl.CO[C@]12CC[C@@]3(C[C@@H]1C(C)(O)CCC(C)C)[C@H]1Cc4ccc(O)c5O[C@@H]2[C@]3(CCN1CC1CC1)c45 VQJMAIZOEPPELO-KYGIZGOZSA-N 0.000 description 1
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- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 229960004592 isopropanol Drugs 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000010501 lemon oil Substances 0.000 description 1
- 229930007744 linalool Natural products 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000001771 mentha piperita Substances 0.000 description 1
- 239000001220 mentha spicata Substances 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical group 0.000 description 1
- 229960001679 octinoxate Drugs 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000312 peanut oil Substances 0.000 description 1
- 230000035515 penetration 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
- 239000010665 pine oil Substances 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical class CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003352 sequestering agent Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2072—Aldehydes-ketones
-
- 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
- C11D1/835—Mixtures of non-ionic with cationic 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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/28—Heterocyclic compounds containing nitrogen in the ring
-
- 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
-
- 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
- C11D1/38—Cationic compounds
- C11D1/62—Quaternary ammonium 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
Abstract
The invention concerns hard surface cleaning compositions comprising a nonionic surfactant, a UV absorber and a water soluble anionic polymer. The compositions leave sufficient UV-absorber on the surface after cleaning to provide extended protection of the surface against the damaging effect of UV
light. Preferably the compositions also contain a hydrotrope such as an aromatic sulphonate salt and/or an organic solvent such as a glycol ether or a lower aliphatic alcohol.
light. Preferably the compositions also contain a hydrotrope such as an aromatic sulphonate salt and/or an organic solvent such as a glycol ether or a lower aliphatic alcohol.
Description
HARD SURFACE CLEANERS
Field of the Invention The present invention relates to hard surface cleaning compositions which contain a W absorbing agent.
Background to the Invention Many household fittings fixtures and furnishings suffer from the harmful effects of the suns rays. This can, for example lead to discoloration of curtains, furniture (leather and wooden) and wooden floors. It is believed that a significant part of this damage is caused by the W
components of the sunlight, particularly in the UV-B region (280-320 nm) range. Similar problems are encountered in office and institutional environments although the present invention will be described with particular reference to household environments.
It is known to protect textiles from W radiation by treating them with a W absorbing agent. For example, EP697481 (CIBA-GEIGY: 1995) concerns textile treatment with a composition comprising W-A compound, emulsifying agent, Water and polysiloxane (i.e. silicone) in an otherwise aqueous textile treatment composition which comprises:
a) a non-reactive WA compound b) an emulsifying or dispersing agent for the WA compound c) water d) optionally, a polysiloxane based product.
Broad-spectrum UV absorbing agents, such as benzophenone derivatives, can be difficult to incorporate in compositions due to their insolubility, cross-reaction with other components etc. As noted above it is known to overcome this problem by putting UV absorbing agents into products which are in the form of oily emulsions. Single phase or at least non-macro-emulsion liquid products are preferred to macro-emulsions for reasons of product stability and appearance.
An additional problem is that of substantivity. Whereas it is to be expected that a fabric will be easy to treat due to its tendency to adsorb liquids formulation of hard surface cleaning compositions is more difficult due to the tendency of these formulations to remove a benefit agent from the surface as rapidly as it is deposited. Consequently there is a need to provide new formulations for hard surface cleaning compositions which contain UV absorbing agents.
Brief Description of the Invention We have determined that the aforementioned difficulties can be overcome by incorporating the W absorbing agent in a hard-surface cleaning composition which also contains a polymer. It is believed that the use of such a composition will Leave sufficient W-absorber on the surface being cleaned to reduce the damaging effect of W light illuminating the said surface.
Accordingly, a first aspect of the present invention relates to a hard-surface cleaning composition comprising:
a) 0.1-50% of a nonionic surfactant, b) 0.005-5% 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, and c) 0.01-5wt% of a W-absorbing agent, (All percentages mentioned herein are by weight of the total composition, unless indicated otherwise.) A second aspect of the present invention relates to a method of reducing UV damage to hard surfaces which comprises the step of treating the surface with a cleaning composition as described above.
It is believed that the presence of the polymer improves the deposition of the W absorbing agent at the surface being cleaned.
Detailed Descri tion of the Invention Typically, the W absorbing agent is effective in the W-B
range, i.e. it shows significant adsorbance in the 280-320 nm wavelength range. Preferably, the UV absorbing agent is a benzophenone derivative. More preferably the W absorbing agent is 2-hydroxy-4-methoxybenzophenone (benzophenone-3).
Suitable materials are available in the marketplace from BASF and Haarmann & Reimer (H&R).
Alternative W absorbers believed suitable for use in the compositions of the present invention include methoxycinnamic acid esters such as octyl methoxycinnamate and also particularly phenylbenzimidazole sulfonic acid.
Many laundry detergent compositions comprise so called optical whiteners or brighteners, i.e. fluorescent compounds which absorb UV light and re-emit this as visible, particularly blue, light. Such compounds have no use in the hard surface cleaning compositions of the present invention and are therefore not comprised in the term 'W absorbing agent! and W absorber.
Suitable levels of W absorbing agents are from 0.01%wt upwards, preferably at least 0.05%, more preferably at least 0.08%. Higher amounts than 2%wt rarely serve a useful purpose and the amounts are preferably at most 1%, more preferably at most 0.5%.
While the pH of the composition can fall in the range 1.0-12, it is preferable that the pH of the composition is not below 2.0, most preferably not below 3Ø Above pH 8.5 the benefit of some W absorbers falls off, other W absorbers such as phenylbenzimidazole sulfonic acid may succesfully be used up to pH 12. Below pH 3.0 damage to the hard surface may occur, especially to enamel surfaces. The most preferred pH is from around 3.0 to 8.5 for compositions according to the present invention. Compositions having a pH of around 4 do not require the presence of a cationic surfactant. At higher pH's a cationic surfactant may be useful to stabilize the product. A base such as sodium hydroxide or ammonia and/or an acid such as citric acid are generally used to bring the pH to the required level.
' Advantageously, the compositions of the invention are aqueous and are preferably not macroscopic emulsions. Other preferred components of formulations according to the invention are described in greater detail below.
Surfactants:
It is essential that the compositions of the present invention comprise at least. one nonionic surfactant component, preferably in an amount of 1-30%wt. Of the nonionic surfactants alkoxylated alcohols, alkoxylated phenols, alkyl-polyglucoside (APG) and amine oxides are very suitable for use in the compositions of the present invention e.g. in amounts of 0.1-5%wt.
In certain compositions according to the invention APG is preferred for its non-streaking and gaod foaming properties.
Preferred levels of APG are such that the composition comprises 0.1-5%wt of APG, preferably 0.1-3 %wt, most preferably 0.2-2 %wt. Preferred APGs contain C8-C16 alkyl chains and it is preferred that more than 50%wt of the APG
present in the compositions of the invention comprises C12-C14 alkyl APG and that the majority of the remaining APG
contains C8-C16. The preferred degree of polymerization is 1.1-1.6, more preferably 1.3-1.5. Suitable materials include GLUCOPON 425 CS TM (ex HENKEL).
Other suitable nonionics, as mentioned above, are alkoxylated alcohols, alkoxylated alkyl-phenols or amine oxides. Of these, alkoxylated alcohols are preferred as surfactants. Suitable nonionic detergent active compounds can be broadly described as compounds produced by the condensation of alkylene oxide groups, which are hydrophilic in nature, with an organic hydrophobic compound which may be aliphatic or alkyl aromatic in nature. The length of the hydrophilic or polyoxyalkylene 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 hydrophilic and hydrophobic elements. Ethoxylated aliphatic alcohols are particularly preferred.
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 alcohol ethylene oxide condensate having from 1 to 15 moles of ethylene oxide per mole of coconut alcohol; condensates of alkylphenols whose alkyl group contains from 6 to 12 carbon atoms with 1 to 25 moles of ethylene oxide per mole of alkylphenol.
Particularly preferred nonionic surfactants include the condensation products of C8-C18 alcohols with 2-12 moles of ethylene oxide. The most preferred alkoxylated alcohol nonionic surfactants are ethoxylated alcohols having a chain length of C9-C11 and an EO value of at least 5 but less than 10. Particularly preferred nonionic surfactants include the condensation products of C10 alcohols with 5-8 moles of ethylene oxide.
The preferred ethoxylated alcohols have a calculated HLB of 10-16. While mixtures of nonionic surfactants can be used it is preferred to use a single commercially available surfactant .
Further surfactant components may be selected from the cationic and/or amphoteric surfactant materials.
Cationic surfactants can be included in the compositions of the invention as hygiene agents, or to assist in the solubilisation of the polymer at high pH's as mentioned above. Typically the cationic surfactants are quaternary ammonium salts of the general formula R1R2R3R9N+X , wherein all of the radicals are hydrocarbons with or without hydroxy substitution, at least one of the radicals R1-R4 is a C6-C22 alkyl, alkaryl or hydroxyalkyl, at least one of the radicals R1-R4 is a C1-C4 alkyl or hydroxy alkyl and X is a monovalent anion equivalent:
The cationic surfactants are preferably the quaternary nitrogen compounds wherein R1 and R2 are the same or different C1-C4 alkyl or hydroxy alkyl, R3 is a C6-C22 alkyl, alkaryl or hydroxyalkyl, R4 is a C1-C22 alkyl, alkaryl or hydroxyalkyl and X is a monovalent anion equivalent.
Preferably X is a halogen, most preferably chloride or bromide.
Preferably R1 and R2 are methyl. In embodiments of the invention R3 is preferably C8-C18 alkyl, more preferably ClO-C16 alkyl. In embodiments of the invention R4 is preferably methyl, C8-C18 alkyl or benzyl. Thus, the cationic surfactants used can have three 'short chain' radicals such as methyl and one fatty-soluble 'long chain' radical or two 'short' chains and two fatty-soluble 'long chains', wherein the 'long chains' can be either linear or branched hydrocarbons or contain aromatic rings.
A further advantage of including a cationic surfactant in the compositions of the invention is that preferred cationic surfactants confer antimicrobial properties on the formulation. Surprisingly, we have determined that compositions according to the invention which contain antimicrobial cationic surfactants show longer lasting hygiene on surfaces which have been treated With the compositions.
WO 99/36499 PCT/EP99l00246 _ g _ Particularly suitable cationic detergent-active compounds include cetyltrimethyl ammonium bromide (CTAB), hardened di-tallow-dimethyl-ammonium chloride (available in the marketplace as BARDAC 2250), benzalkonium chloride and mixtures thereof.
The cationic surfactants which comprise one aryl substituent are especially preferred as they are believed to give particularly good antimicrobial effects.
Typical levels of cationic surfactant will lie in the range of 0.05-3%wt on product. Preferred levels of cationic surfactant are around 1-3%wt.
Without wishing to limit the present invention by reference to any theory of operation it is believed that enhanced detergency of nonionic surfactants, at acid pH, in the presence of polymer is due to the formation of a hydrogen bonded complex between the nonionic surfactant and the uncharged, undissociated carboxylic acid groups of the polymer. As the pH is raised, the acid groups of the polymer dissociate and the hydrogen-bonded complex is no longer formed. It is believed that in the presence of the cationic surfactant required by some embodiments of the present invention, negatively charged (i.e. carboxylic dissociated) polymer can interact with the cationic surfactant and the nonionic surfactant to form a three-component complex which deposit the nonionic surfactant upon the soil and/or surface being cleaned. While the mechanism is not entirely clear, this may possibly be due to the interaction of the charged polymer with mixed miscelles of cationic and nonionic surfactant.
It is believed that the deposition of the complex on the surface has two results. Firstly the concentration of the _ g _ surfactant at the surface is increased, resulting in improved cleaning in the initial cleaning cycle and a reduction in the so-called primary cleaning effort. It is also believed that the complex, or at least some part of it, remains on the surface after cleaning and prevents or reduces the re-attachment of soil to the surface thereby making the surface easier to clean in second and subsequent cleaning cycles, i.e. it reduces the 'secondary cleaning effort.
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 and wide availability. It is believed that amphoteric surfactants show a slight synergy with some organic acids (when present) as regards antimicrobial effects.
Preferably the overall level of surfactant in the compositions of the invention is 0.1-10%wt, more preferably 0.5-8%wt, most preferably 0.5-4%wt.
Anionic surfactant can be present in relatively small proportions, however it is preferable that anionic surfactant is absent from composition. As described in further detail below some amounts of anionic detergents may be present in the form of soaps as part of an antifoam system. It is preferred that the compositions of the invention comprise less than 2%wt, preferably less than 1% of anionic surfactant other than those mentioned above.
Polymers:
As noted above the polymers according to the invention are water soluble polymers having an average molecular weight of leas than 1,000,000. Typically, these polymers are polymers bearing carboxylate functional groups although the use of other anionic polymers is possible. In the context of the present invention, anionic polymers are those which are capable of carrying a negative charge or such polymers in protonated form: Mixtures of polymers can be employed.
The preferred polymers in embodiments of the present invention are those which are readily available in the marketplace. Particularly useful are polymers of acrylic or methacrylic acid or malefic 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 aforementioned with ethylene, styrene and methyl vinyl ether.
The most preferred polymers are malefic anhydride co-polymers, preferably those formed with styrene, acrylic acid, methyl vinyl ether and ethylene.
Preferably, the average molecular weight of the polymer is at least 5000, more preferably at least 50,000 and most preferably in excess of 100,000. VERSICOL E-11 TM (ex. Allied Colloids) which is a polyacrylic acid, has been found to be a suitable polymer for use in compositions according to the invention.
Typically, the surfactant based cleaning compositions comprise at least O.Olwt% polymer, on product. The positive benefit of the presence of polymer as regards the improvement in cleaning properties can be identified even when very low levels of polymer and surfactant are present. This property of a low concentration threshold is particularly advantageous in applications of the invention where considerable dilution is expected, such as in floor cleaning.
Preferably the level of polymer is 0.05-4.Owt% at which level the anti-resoiling benefits become particularly significant.
More preferably at least O.lwt% of polymer is present, most preferably at least 0.2%wt. We have determined that higher levels of polymer than 3%wt or even 2%wt do not give significant further cleaning advantages taking common dilution factors into account, while increasing the coat of compositions. It is believed, that high levels of polymer increase the viscosity of the product and hinder product wetting and penetration of the soil. However, for very concentrated products which are strongly diluted prior to use, the initial polymer level can be as high as 5%wt.
As mentioned above, the molecular weight of the polymer is preferably below 1,000,000 Dalton. It is believed that as the molecular weight increases the cleaning benefit of the polymer is reduced.
Solveats:
One or more solvents may be present in the compositions of the invention. The presence of solvents is often beneficial.
It is preferred that the compositions of the present invention comprise not more than 25%wt of glycol ether or alkanol solvents of the general formula:
R1-0- (EO)n,- (p0) n-R2, wherein R1 and R2 are independently C1-C6 alkyl or H, but not both hydrogen, m and n are independently 0-5; E stands for an ethylene group and P stands for a propylene group.
The alcohol solvents are selected from the C1-C6 branched or straight chain alkanols, more preferably one or more of methanol, ethanol, propanols or butanols.
Ethanol and iso-propanol are particularly preferred.
Preferably, the solvent comprises at least one glycol ether solvent selected from the group comprising diethylene glycol mono-n-butyl ether (available in the marketplace as Butyl DigolTM), ethylene glycol mono-n-butyl ether and propylene glycol mono-n-butyl ether and mixtures thereof.
The total level of these solvents in the detergent compositions prepared according to the invention is preferably not more than 25% by weight, more preferably 20% or less, most preferably 10% or less. on the other hand the compositions preferably contain at least 1%wt of these solvents, more preferably at least 2% and most preferably at least 5%.
Aatimicrobials:
Optionally antimicrobial agents can be used in the compositions of the present invention. The preferred antimicrobials are the quaternary ammonium compounds mentioned above and/or phenolic compounds.
Typical levels of the antimicrobial agent in formulations range from 0.01 to 8%wt, 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.
Where antimicrobial agents are not present at significant levels it is advantageous that the compositions comprise a preservative. A suitable preservative is PROXEL LVTM or FORMOLs"' .
Iasect'Repelleat Materials:
Given that the compositions of the invention effectively comprise a means for deposition of a surfactant/polymer complex at the surface being cleaned, it is envisaged that the compositions of the invention can further comprise components which it is desirable to deposit upon a surface.
A preferred class of additional components is insect repellent materials.
Particularly suitable insect repellents include essential oils such as those of genus Mentha, particularly Mentha arvensis, mentha piperita, Mentha spicata and Mentha cardica;
Lemongrass East Indian oil, Lemon oil, Citronella, Cedarwood and Pine oil; terpenoids, particularly limonene, carvone, cineole, linalool, Gum Camphor, citronellal, alpha- and beta-terpenol, fencholic acid, borneol, iso-borneol, bornyl acetate and iso-bornyl acetate. The most preferred insect repellents are the terpenoids, particularly limonene. Of the above mentioned oils many are known to show antimicrobial effects as well as being insect repellents and/or perfumes and can therefore perform more than one function.
The level of insect repellent required will vary with the nature of the material used. For essential oils and terpenoids, preferred levels are 0.1-5% on product.
Minors and,Optional Components:
The compositions according to the invention can contain other minor ingredients which are not essential, but aid in their cleaning performance and in maintaining the physical and chemical stability of'the product.
For example, the composition can contain detergent builders.
In general, a builder, when employed, preferably will form from 0.1 to 25% by weight of the composition.
Metal ion sequestrants, including ethylenediamine-tetraacetates, aminopolyphosphonates (such as those in the DEQUEST~ 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 a composition is improved by the presence of a metal ion sequesterant.
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 at the same time is believed to be less desirable as these surfactants interact and 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 weight of surfactant present and preferably less than 50% of the weight of the betaine in the product. Avionics are compatible with the solely alcohol ethoxylate based compositions of the present invention when the level is below 50%wt of the total surfactant present, but their level should be minimized in view of their interaction with the polymers. Preferably the level of anionic is below 30%wt 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, >20E0 ethoxylated alcohols, short chain, preferably C2-C5 alcohols and glycols. Preferred amongst these hydrotropes are the sulphonates, particularly the cumene, xylene and toluene sulphonates. For the purposes of this invention the aromatic sulphonate hydrotropes are non considered avionics.
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~C. The cumene sulphonate is the most preferred hydrotrope. For ethoxylated nonionic levels of around 7%wt WO 99!36499 PCfIEP99/00246 corresponding levels of SCS will generally be in the range 0.6-0.8wt%, whereas for ethoxylated nonionic levels of around 14%wt corresponding levels of SCS will generally be in the range 1.0-l.2wt%.
Typically, a further optional ingredient for compositions according to the invention is a suds regulating material, which can be employed in compositions according to the invention which have a tendency to produce excessive suds in use. One example of a suds regulating material is soap.
Soaps are salts of fatty acids and include alkali metal soaps such as the sodium, potassium, ammonium and alkanol-ammonium salts of C8-C24,fatty acids, and preferably C10-C20.
Particularly useful are the sodium and potassium and mono-, di- and tri-ethanolamine salts of the mixtures of fatty acids derived from coconut oil and ground nut oil. When employed, the amount of soap can form at least 0.005%, preferably 0.5%
Field of the Invention The present invention relates to hard surface cleaning compositions which contain a W absorbing agent.
Background to the Invention Many household fittings fixtures and furnishings suffer from the harmful effects of the suns rays. This can, for example lead to discoloration of curtains, furniture (leather and wooden) and wooden floors. It is believed that a significant part of this damage is caused by the W
components of the sunlight, particularly in the UV-B region (280-320 nm) range. Similar problems are encountered in office and institutional environments although the present invention will be described with particular reference to household environments.
It is known to protect textiles from W radiation by treating them with a W absorbing agent. For example, EP697481 (CIBA-GEIGY: 1995) concerns textile treatment with a composition comprising W-A compound, emulsifying agent, Water and polysiloxane (i.e. silicone) in an otherwise aqueous textile treatment composition which comprises:
a) a non-reactive WA compound b) an emulsifying or dispersing agent for the WA compound c) water d) optionally, a polysiloxane based product.
Broad-spectrum UV absorbing agents, such as benzophenone derivatives, can be difficult to incorporate in compositions due to their insolubility, cross-reaction with other components etc. As noted above it is known to overcome this problem by putting UV absorbing agents into products which are in the form of oily emulsions. Single phase or at least non-macro-emulsion liquid products are preferred to macro-emulsions for reasons of product stability and appearance.
An additional problem is that of substantivity. Whereas it is to be expected that a fabric will be easy to treat due to its tendency to adsorb liquids formulation of hard surface cleaning compositions is more difficult due to the tendency of these formulations to remove a benefit agent from the surface as rapidly as it is deposited. Consequently there is a need to provide new formulations for hard surface cleaning compositions which contain UV absorbing agents.
Brief Description of the Invention We have determined that the aforementioned difficulties can be overcome by incorporating the W absorbing agent in a hard-surface cleaning composition which also contains a polymer. It is believed that the use of such a composition will Leave sufficient W-absorber on the surface being cleaned to reduce the damaging effect of W light illuminating the said surface.
Accordingly, a first aspect of the present invention relates to a hard-surface cleaning composition comprising:
a) 0.1-50% of a nonionic surfactant, b) 0.005-5% 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, and c) 0.01-5wt% of a W-absorbing agent, (All percentages mentioned herein are by weight of the total composition, unless indicated otherwise.) A second aspect of the present invention relates to a method of reducing UV damage to hard surfaces which comprises the step of treating the surface with a cleaning composition as described above.
It is believed that the presence of the polymer improves the deposition of the W absorbing agent at the surface being cleaned.
Detailed Descri tion of the Invention Typically, the W absorbing agent is effective in the W-B
range, i.e. it shows significant adsorbance in the 280-320 nm wavelength range. Preferably, the UV absorbing agent is a benzophenone derivative. More preferably the W absorbing agent is 2-hydroxy-4-methoxybenzophenone (benzophenone-3).
Suitable materials are available in the marketplace from BASF and Haarmann & Reimer (H&R).
Alternative W absorbers believed suitable for use in the compositions of the present invention include methoxycinnamic acid esters such as octyl methoxycinnamate and also particularly phenylbenzimidazole sulfonic acid.
Many laundry detergent compositions comprise so called optical whiteners or brighteners, i.e. fluorescent compounds which absorb UV light and re-emit this as visible, particularly blue, light. Such compounds have no use in the hard surface cleaning compositions of the present invention and are therefore not comprised in the term 'W absorbing agent! and W absorber.
Suitable levels of W absorbing agents are from 0.01%wt upwards, preferably at least 0.05%, more preferably at least 0.08%. Higher amounts than 2%wt rarely serve a useful purpose and the amounts are preferably at most 1%, more preferably at most 0.5%.
While the pH of the composition can fall in the range 1.0-12, it is preferable that the pH of the composition is not below 2.0, most preferably not below 3Ø Above pH 8.5 the benefit of some W absorbers falls off, other W absorbers such as phenylbenzimidazole sulfonic acid may succesfully be used up to pH 12. Below pH 3.0 damage to the hard surface may occur, especially to enamel surfaces. The most preferred pH is from around 3.0 to 8.5 for compositions according to the present invention. Compositions having a pH of around 4 do not require the presence of a cationic surfactant. At higher pH's a cationic surfactant may be useful to stabilize the product. A base such as sodium hydroxide or ammonia and/or an acid such as citric acid are generally used to bring the pH to the required level.
' Advantageously, the compositions of the invention are aqueous and are preferably not macroscopic emulsions. Other preferred components of formulations according to the invention are described in greater detail below.
Surfactants:
It is essential that the compositions of the present invention comprise at least. one nonionic surfactant component, preferably in an amount of 1-30%wt. Of the nonionic surfactants alkoxylated alcohols, alkoxylated phenols, alkyl-polyglucoside (APG) and amine oxides are very suitable for use in the compositions of the present invention e.g. in amounts of 0.1-5%wt.
In certain compositions according to the invention APG is preferred for its non-streaking and gaod foaming properties.
Preferred levels of APG are such that the composition comprises 0.1-5%wt of APG, preferably 0.1-3 %wt, most preferably 0.2-2 %wt. Preferred APGs contain C8-C16 alkyl chains and it is preferred that more than 50%wt of the APG
present in the compositions of the invention comprises C12-C14 alkyl APG and that the majority of the remaining APG
contains C8-C16. The preferred degree of polymerization is 1.1-1.6, more preferably 1.3-1.5. Suitable materials include GLUCOPON 425 CS TM (ex HENKEL).
Other suitable nonionics, as mentioned above, are alkoxylated alcohols, alkoxylated alkyl-phenols or amine oxides. Of these, alkoxylated alcohols are preferred as surfactants. Suitable nonionic detergent active compounds can be broadly described as compounds produced by the condensation of alkylene oxide groups, which are hydrophilic in nature, with an organic hydrophobic compound which may be aliphatic or alkyl aromatic in nature. The length of the hydrophilic or polyoxyalkylene 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 hydrophilic and hydrophobic elements. Ethoxylated aliphatic alcohols are particularly preferred.
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 alcohol ethylene oxide condensate having from 1 to 15 moles of ethylene oxide per mole of coconut alcohol; condensates of alkylphenols whose alkyl group contains from 6 to 12 carbon atoms with 1 to 25 moles of ethylene oxide per mole of alkylphenol.
Particularly preferred nonionic surfactants include the condensation products of C8-C18 alcohols with 2-12 moles of ethylene oxide. The most preferred alkoxylated alcohol nonionic surfactants are ethoxylated alcohols having a chain length of C9-C11 and an EO value of at least 5 but less than 10. Particularly preferred nonionic surfactants include the condensation products of C10 alcohols with 5-8 moles of ethylene oxide.
The preferred ethoxylated alcohols have a calculated HLB of 10-16. While mixtures of nonionic surfactants can be used it is preferred to use a single commercially available surfactant .
Further surfactant components may be selected from the cationic and/or amphoteric surfactant materials.
Cationic surfactants can be included in the compositions of the invention as hygiene agents, or to assist in the solubilisation of the polymer at high pH's as mentioned above. Typically the cationic surfactants are quaternary ammonium salts of the general formula R1R2R3R9N+X , wherein all of the radicals are hydrocarbons with or without hydroxy substitution, at least one of the radicals R1-R4 is a C6-C22 alkyl, alkaryl or hydroxyalkyl, at least one of the radicals R1-R4 is a C1-C4 alkyl or hydroxy alkyl and X is a monovalent anion equivalent:
The cationic surfactants are preferably the quaternary nitrogen compounds wherein R1 and R2 are the same or different C1-C4 alkyl or hydroxy alkyl, R3 is a C6-C22 alkyl, alkaryl or hydroxyalkyl, R4 is a C1-C22 alkyl, alkaryl or hydroxyalkyl and X is a monovalent anion equivalent.
Preferably X is a halogen, most preferably chloride or bromide.
Preferably R1 and R2 are methyl. In embodiments of the invention R3 is preferably C8-C18 alkyl, more preferably ClO-C16 alkyl. In embodiments of the invention R4 is preferably methyl, C8-C18 alkyl or benzyl. Thus, the cationic surfactants used can have three 'short chain' radicals such as methyl and one fatty-soluble 'long chain' radical or two 'short' chains and two fatty-soluble 'long chains', wherein the 'long chains' can be either linear or branched hydrocarbons or contain aromatic rings.
A further advantage of including a cationic surfactant in the compositions of the invention is that preferred cationic surfactants confer antimicrobial properties on the formulation. Surprisingly, we have determined that compositions according to the invention which contain antimicrobial cationic surfactants show longer lasting hygiene on surfaces which have been treated With the compositions.
WO 99/36499 PCT/EP99l00246 _ g _ Particularly suitable cationic detergent-active compounds include cetyltrimethyl ammonium bromide (CTAB), hardened di-tallow-dimethyl-ammonium chloride (available in the marketplace as BARDAC 2250), benzalkonium chloride and mixtures thereof.
The cationic surfactants which comprise one aryl substituent are especially preferred as they are believed to give particularly good antimicrobial effects.
Typical levels of cationic surfactant will lie in the range of 0.05-3%wt on product. Preferred levels of cationic surfactant are around 1-3%wt.
Without wishing to limit the present invention by reference to any theory of operation it is believed that enhanced detergency of nonionic surfactants, at acid pH, in the presence of polymer is due to the formation of a hydrogen bonded complex between the nonionic surfactant and the uncharged, undissociated carboxylic acid groups of the polymer. As the pH is raised, the acid groups of the polymer dissociate and the hydrogen-bonded complex is no longer formed. It is believed that in the presence of the cationic surfactant required by some embodiments of the present invention, negatively charged (i.e. carboxylic dissociated) polymer can interact with the cationic surfactant and the nonionic surfactant to form a three-component complex which deposit the nonionic surfactant upon the soil and/or surface being cleaned. While the mechanism is not entirely clear, this may possibly be due to the interaction of the charged polymer with mixed miscelles of cationic and nonionic surfactant.
It is believed that the deposition of the complex on the surface has two results. Firstly the concentration of the _ g _ surfactant at the surface is increased, resulting in improved cleaning in the initial cleaning cycle and a reduction in the so-called primary cleaning effort. It is also believed that the complex, or at least some part of it, remains on the surface after cleaning and prevents or reduces the re-attachment of soil to the surface thereby making the surface easier to clean in second and subsequent cleaning cycles, i.e. it reduces the 'secondary cleaning effort.
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 and wide availability. It is believed that amphoteric surfactants show a slight synergy with some organic acids (when present) as regards antimicrobial effects.
Preferably the overall level of surfactant in the compositions of the invention is 0.1-10%wt, more preferably 0.5-8%wt, most preferably 0.5-4%wt.
Anionic surfactant can be present in relatively small proportions, however it is preferable that anionic surfactant is absent from composition. As described in further detail below some amounts of anionic detergents may be present in the form of soaps as part of an antifoam system. It is preferred that the compositions of the invention comprise less than 2%wt, preferably less than 1% of anionic surfactant other than those mentioned above.
Polymers:
As noted above the polymers according to the invention are water soluble polymers having an average molecular weight of leas than 1,000,000. Typically, these polymers are polymers bearing carboxylate functional groups although the use of other anionic polymers is possible. In the context of the present invention, anionic polymers are those which are capable of carrying a negative charge or such polymers in protonated form: Mixtures of polymers can be employed.
The preferred polymers in embodiments of the present invention are those which are readily available in the marketplace. Particularly useful are polymers of acrylic or methacrylic acid or malefic 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 aforementioned with ethylene, styrene and methyl vinyl ether.
The most preferred polymers are malefic anhydride co-polymers, preferably those formed with styrene, acrylic acid, methyl vinyl ether and ethylene.
Preferably, the average molecular weight of the polymer is at least 5000, more preferably at least 50,000 and most preferably in excess of 100,000. VERSICOL E-11 TM (ex. Allied Colloids) which is a polyacrylic acid, has been found to be a suitable polymer for use in compositions according to the invention.
Typically, the surfactant based cleaning compositions comprise at least O.Olwt% polymer, on product. The positive benefit of the presence of polymer as regards the improvement in cleaning properties can be identified even when very low levels of polymer and surfactant are present. This property of a low concentration threshold is particularly advantageous in applications of the invention where considerable dilution is expected, such as in floor cleaning.
Preferably the level of polymer is 0.05-4.Owt% at which level the anti-resoiling benefits become particularly significant.
More preferably at least O.lwt% of polymer is present, most preferably at least 0.2%wt. We have determined that higher levels of polymer than 3%wt or even 2%wt do not give significant further cleaning advantages taking common dilution factors into account, while increasing the coat of compositions. It is believed, that high levels of polymer increase the viscosity of the product and hinder product wetting and penetration of the soil. However, for very concentrated products which are strongly diluted prior to use, the initial polymer level can be as high as 5%wt.
As mentioned above, the molecular weight of the polymer is preferably below 1,000,000 Dalton. It is believed that as the molecular weight increases the cleaning benefit of the polymer is reduced.
Solveats:
One or more solvents may be present in the compositions of the invention. The presence of solvents is often beneficial.
It is preferred that the compositions of the present invention comprise not more than 25%wt of glycol ether or alkanol solvents of the general formula:
R1-0- (EO)n,- (p0) n-R2, wherein R1 and R2 are independently C1-C6 alkyl or H, but not both hydrogen, m and n are independently 0-5; E stands for an ethylene group and P stands for a propylene group.
The alcohol solvents are selected from the C1-C6 branched or straight chain alkanols, more preferably one or more of methanol, ethanol, propanols or butanols.
Ethanol and iso-propanol are particularly preferred.
Preferably, the solvent comprises at least one glycol ether solvent selected from the group comprising diethylene glycol mono-n-butyl ether (available in the marketplace as Butyl DigolTM), ethylene glycol mono-n-butyl ether and propylene glycol mono-n-butyl ether and mixtures thereof.
The total level of these solvents in the detergent compositions prepared according to the invention is preferably not more than 25% by weight, more preferably 20% or less, most preferably 10% or less. on the other hand the compositions preferably contain at least 1%wt of these solvents, more preferably at least 2% and most preferably at least 5%.
Aatimicrobials:
Optionally antimicrobial agents can be used in the compositions of the present invention. The preferred antimicrobials are the quaternary ammonium compounds mentioned above and/or phenolic compounds.
Typical levels of the antimicrobial agent in formulations range from 0.01 to 8%wt, 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.
Where antimicrobial agents are not present at significant levels it is advantageous that the compositions comprise a preservative. A suitable preservative is PROXEL LVTM or FORMOLs"' .
Iasect'Repelleat Materials:
Given that the compositions of the invention effectively comprise a means for deposition of a surfactant/polymer complex at the surface being cleaned, it is envisaged that the compositions of the invention can further comprise components which it is desirable to deposit upon a surface.
A preferred class of additional components is insect repellent materials.
Particularly suitable insect repellents include essential oils such as those of genus Mentha, particularly Mentha arvensis, mentha piperita, Mentha spicata and Mentha cardica;
Lemongrass East Indian oil, Lemon oil, Citronella, Cedarwood and Pine oil; terpenoids, particularly limonene, carvone, cineole, linalool, Gum Camphor, citronellal, alpha- and beta-terpenol, fencholic acid, borneol, iso-borneol, bornyl acetate and iso-bornyl acetate. The most preferred insect repellents are the terpenoids, particularly limonene. Of the above mentioned oils many are known to show antimicrobial effects as well as being insect repellents and/or perfumes and can therefore perform more than one function.
The level of insect repellent required will vary with the nature of the material used. For essential oils and terpenoids, preferred levels are 0.1-5% on product.
Minors and,Optional Components:
The compositions according to the invention can contain other minor ingredients which are not essential, but aid in their cleaning performance and in maintaining the physical and chemical stability of'the product.
For example, the composition can contain detergent builders.
In general, a builder, when employed, preferably will form from 0.1 to 25% by weight of the composition.
Metal ion sequestrants, including ethylenediamine-tetraacetates, aminopolyphosphonates (such as those in the DEQUEST~ 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 a composition is improved by the presence of a metal ion sequesterant.
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 at the same time is believed to be less desirable as these surfactants interact and 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 weight of surfactant present and preferably less than 50% of the weight of the betaine in the product. Avionics are compatible with the solely alcohol ethoxylate based compositions of the present invention when the level is below 50%wt of the total surfactant present, but their level should be minimized in view of their interaction with the polymers. Preferably the level of anionic is below 30%wt 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, >20E0 ethoxylated alcohols, short chain, preferably C2-C5 alcohols and glycols. Preferred amongst these hydrotropes are the sulphonates, particularly the cumene, xylene and toluene sulphonates. For the purposes of this invention the aromatic sulphonate hydrotropes are non considered avionics.
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~C. The cumene sulphonate is the most preferred hydrotrope. For ethoxylated nonionic levels of around 7%wt WO 99!36499 PCfIEP99/00246 corresponding levels of SCS will generally be in the range 0.6-0.8wt%, whereas for ethoxylated nonionic levels of around 14%wt corresponding levels of SCS will generally be in the range 1.0-l.2wt%.
Typically, a further optional ingredient for compositions according to the invention is a suds regulating material, which can be employed in compositions according to the invention which have a tendency to produce excessive suds in use. One example of a suds regulating material is soap.
Soaps are salts of fatty acids and include alkali metal soaps such as the sodium, potassium, ammonium and alkanol-ammonium salts of C8-C24,fatty acids, and preferably C10-C20.
Particularly useful are the sodium and potassium and mono-, di- and tri-ethanolamine salts of the mixtures of fatty acids derived from coconut oil and ground nut oil. When employed, the amount of soap can form at least 0.005%, preferably 0.5%
- 2% by weight of the composition.
Further examples of suds regulating materials are organic solvents, hydrophobic silicas, silicone oils and hydrocarbons.
An alternative suds regulating material comprises a mixed EO/PO nonionic surfactant. Suitable ethoxylated/propoxylated nonionic detergents include the condensation product of aliphatic alcohols having from 8 to 22 carbon atoms in either straight or branched chain configuration with ethylene oxide and propylene oxide, such as a coconut oil ethylene oxide/propylene oxide condensate having from 2 to 15 moles in total of ethylene oxide and propylene oxide per mole of coconut alcohol. It is preferable that the mole ratio of ethylene oxide to propylene oxide in these condensation products lies in the range 1:5-5:1.
Particularly preferred ethoxylated/propoxylated nonionics include molecules of the general formula:
RO ( EO ) n ( PO ) n,H
wherein: R is an alkyl residue having an average carbon chain length of C8-C14, preferably C9-C11, EO is an ethylene oxide residue, n is 1-10, PO is a propylene oxide residue and m is 1-5. A particularly preferred material has C9-C11, 5-8E0, 1-3PO, most preferably C9-C11, 6E0, 2P0.
The amount of ethoxylated/propoxylated nonionic detergent active to be employed in the composition of the invention will generally be 2-10%wt, and most preferably 3-6%wt.
Preferred weight ratios of the ethoxylated to the ethoxylated/propoxylated surfactant in the composition fall in the range 4:1 - 2:1, with the ethoxylated surfactant being present in weight excess over the ethoxylated/ propoxylated surfactant.
Bleaching compounds generally serve no useful purpose in cleaning compositions of the present invention and will therefore normally be absent. Also, the presence of abrasives is difficultly reconcilable with the purposes of the present invention. Moreover such components and other water-insoluble solid inorganic compounds tend to leave difficultly removable traces on a surface. They will, therefore, normally be absent as well.
Preferred Composition:
Preferred compositions according to the present invention have a pH of 3-8 and comprise:
a) 1-10%wt of 2-15E0 ethoxylated C8-C18 alcohol nonionic surfactant, b) 0.1-4%wt of a water soluble, anionic polymer having an average molecular weight less than 1,000,000, said polymer being a (co)polymer of at least one of acrylic acid, methacrylic acid or malefic anhydride, with at least one of acrylic acid, methacrylic acid, malefic anhydride, ethylene, styrene and methyl vinyl ether, c) 0.01=1%wt of a WA-B absorbing material, preferably a benzophenone derivative d) less than 1%wt of anionic surfactants, and, e) 0.1-4%wt of a hydrotrope Alternative preferred compositions are set out as compositions A and B below.
A% 8$
Nonionic 7.0 14.0 (Dobano ) Nonionic 3.0 6.0 EO PO
(BIODAC
L6S50) Pol ac 0.5 1.0 late (Versicol E11) W absorbin ent (Benzo henone-3) 0.01-1 0.01-1 a Coco Fatt Acid 0.5 1.0 Citric id 0.6 1.2 ac Sodium -- to H
H droxi 3.75 --de _ -- to cp Sodium 45-50 --Cumene Sulphonate Preservative 0.016 0.016 (Proxel LV) Perfume 0.38-0.5 0.76-1.0 Water Viscosit 20 80 (mPas) Compositions can also be manufactured which are essentially dry powders and which form the compositions of the invention on addition of water.
In order that the present invention may be further understood it will be described hereinafter by way of example:
Examples In order to demonstrate the effectiveness of,the present invention compositions according to the invention were compared with products which were available in the Brazilian market. A typical heavy duty cleaners in this market is 'Veja~, available from Reckitt & Colman. A further known product is 'DomexTM and is manufactured by Lever.
Example l: UV adaorbance The compatibility of the UV absorber Benzophenone-3 of H&R
with Veja was tested by simple mixture. Since the pH of this product is high, it was expected that the absorber will show a degree of incompatibility. The Lever product, Domex has a pH of around 4. It is therefore expected to be more compatible with the W absorber. For comparative purposes a product (Comparative) was used as given in table 1 below:
Table 1 Raw Material w/'w' But 1 Di of Ethanol 10.00 Gluco on 425 CS 0.80 D a trace water to 100 The Domex product was formulated as follows:
Table 2 Raw Material w/w ($)' Nonionic 6E0 3.0 wt% (surfactant) Sodium Cumene Sul hate 1:8 wt% (h drotrope) -Versicol E-11 0.25 wt% (cleaning aid, deposition aid) Sodium H droxide 0.04 wt% ( H re ulator) Proxel 0.02 wt% ( resservative) Perfume 1.0 wt%
estuff 0.00102 wt%
Benzo henone-3 0.01 to 1% (UVA-B absorber) Water to 100%
In the above exemplary formulation the order of addition is important, since the UV absorbing material is difficult to dissolve in water. In the example a pre-mixture of the W
absorber in solvent is prepared and the remaining components are admixed before the W absorber/solvent is added. In the case of the comparative formulation (Comp) a pre-mixture of UV absorber/Butyl Digol at 10% concentration (0.5 g W
absorber in 5 g Butyl Digol) was added after all the other components to give a final product concentration of 0.01-1%.
UV light absorbance was measured with a spectrophotometer.
Table 3 shows the results.
Table 3 - zi -Comp Veja + W Domex + W
adsorbance% at (nm) 280 1.439 13.838 11 290 0.905 12.724 .
13.95 300 0.382 10.161 12,99 310 0.153 7.806 12 320 0.08 7.07 .
330 0.08 6.9 .
340 0.09 6.29 .
7.57 The measurements in Table 3 clearly show the effectiveness of this absorber in Domex, and a decrease in absorbance and hence less effectiveness for the Veja product (which does not contain polymer and has a higher pH). In addition visual clues as to discoloration of the product indicated a degree of incompatibility of the absorber and the Vega product. It can be seen that the~comparative product (comp) which did not contain the absorbing material had little or no W
adsorbance.
Example 2: cleaning performance:
In order to demonstrate that the products according to the invention were effective cleaners cleaning effort was measured for the preferred product of the invention and an embodiment prepared by mixing Vega with the Benzophenone-3 W absorber. Results are given in table 4 below, in terms of the effort (in N.s) needed to clean a surface, either FormicaTM or enamel which had been soiled in a standard manner.
Table 4 ~~
Ve j a Domex Formica fatty 201 116 soil Enamel fatt soil 246 218 From the above examples it can be seen that the preferred compositions of the invention are both effective cleaners and effectively reduce W exposure of surfaces which have been treated with them.
Further examples of suds regulating materials are organic solvents, hydrophobic silicas, silicone oils and hydrocarbons.
An alternative suds regulating material comprises a mixed EO/PO nonionic surfactant. Suitable ethoxylated/propoxylated nonionic detergents include the condensation product of aliphatic alcohols having from 8 to 22 carbon atoms in either straight or branched chain configuration with ethylene oxide and propylene oxide, such as a coconut oil ethylene oxide/propylene oxide condensate having from 2 to 15 moles in total of ethylene oxide and propylene oxide per mole of coconut alcohol. It is preferable that the mole ratio of ethylene oxide to propylene oxide in these condensation products lies in the range 1:5-5:1.
Particularly preferred ethoxylated/propoxylated nonionics include molecules of the general formula:
RO ( EO ) n ( PO ) n,H
wherein: R is an alkyl residue having an average carbon chain length of C8-C14, preferably C9-C11, EO is an ethylene oxide residue, n is 1-10, PO is a propylene oxide residue and m is 1-5. A particularly preferred material has C9-C11, 5-8E0, 1-3PO, most preferably C9-C11, 6E0, 2P0.
The amount of ethoxylated/propoxylated nonionic detergent active to be employed in the composition of the invention will generally be 2-10%wt, and most preferably 3-6%wt.
Preferred weight ratios of the ethoxylated to the ethoxylated/propoxylated surfactant in the composition fall in the range 4:1 - 2:1, with the ethoxylated surfactant being present in weight excess over the ethoxylated/ propoxylated surfactant.
Bleaching compounds generally serve no useful purpose in cleaning compositions of the present invention and will therefore normally be absent. Also, the presence of abrasives is difficultly reconcilable with the purposes of the present invention. Moreover such components and other water-insoluble solid inorganic compounds tend to leave difficultly removable traces on a surface. They will, therefore, normally be absent as well.
Preferred Composition:
Preferred compositions according to the present invention have a pH of 3-8 and comprise:
a) 1-10%wt of 2-15E0 ethoxylated C8-C18 alcohol nonionic surfactant, b) 0.1-4%wt of a water soluble, anionic polymer having an average molecular weight less than 1,000,000, said polymer being a (co)polymer of at least one of acrylic acid, methacrylic acid or malefic anhydride, with at least one of acrylic acid, methacrylic acid, malefic anhydride, ethylene, styrene and methyl vinyl ether, c) 0.01=1%wt of a WA-B absorbing material, preferably a benzophenone derivative d) less than 1%wt of anionic surfactants, and, e) 0.1-4%wt of a hydrotrope Alternative preferred compositions are set out as compositions A and B below.
A% 8$
Nonionic 7.0 14.0 (Dobano ) Nonionic 3.0 6.0 EO PO
(BIODAC
L6S50) Pol ac 0.5 1.0 late (Versicol E11) W absorbin ent (Benzo henone-3) 0.01-1 0.01-1 a Coco Fatt Acid 0.5 1.0 Citric id 0.6 1.2 ac Sodium -- to H
H droxi 3.75 --de _ -- to cp Sodium 45-50 --Cumene Sulphonate Preservative 0.016 0.016 (Proxel LV) Perfume 0.38-0.5 0.76-1.0 Water Viscosit 20 80 (mPas) Compositions can also be manufactured which are essentially dry powders and which form the compositions of the invention on addition of water.
In order that the present invention may be further understood it will be described hereinafter by way of example:
Examples In order to demonstrate the effectiveness of,the present invention compositions according to the invention were compared with products which were available in the Brazilian market. A typical heavy duty cleaners in this market is 'Veja~, available from Reckitt & Colman. A further known product is 'DomexTM and is manufactured by Lever.
Example l: UV adaorbance The compatibility of the UV absorber Benzophenone-3 of H&R
with Veja was tested by simple mixture. Since the pH of this product is high, it was expected that the absorber will show a degree of incompatibility. The Lever product, Domex has a pH of around 4. It is therefore expected to be more compatible with the W absorber. For comparative purposes a product (Comparative) was used as given in table 1 below:
Table 1 Raw Material w/'w' But 1 Di of Ethanol 10.00 Gluco on 425 CS 0.80 D a trace water to 100 The Domex product was formulated as follows:
Table 2 Raw Material w/w ($)' Nonionic 6E0 3.0 wt% (surfactant) Sodium Cumene Sul hate 1:8 wt% (h drotrope) -Versicol E-11 0.25 wt% (cleaning aid, deposition aid) Sodium H droxide 0.04 wt% ( H re ulator) Proxel 0.02 wt% ( resservative) Perfume 1.0 wt%
estuff 0.00102 wt%
Benzo henone-3 0.01 to 1% (UVA-B absorber) Water to 100%
In the above exemplary formulation the order of addition is important, since the UV absorbing material is difficult to dissolve in water. In the example a pre-mixture of the W
absorber in solvent is prepared and the remaining components are admixed before the W absorber/solvent is added. In the case of the comparative formulation (Comp) a pre-mixture of UV absorber/Butyl Digol at 10% concentration (0.5 g W
absorber in 5 g Butyl Digol) was added after all the other components to give a final product concentration of 0.01-1%.
UV light absorbance was measured with a spectrophotometer.
Table 3 shows the results.
Table 3 - zi -Comp Veja + W Domex + W
adsorbance% at (nm) 280 1.439 13.838 11 290 0.905 12.724 .
13.95 300 0.382 10.161 12,99 310 0.153 7.806 12 320 0.08 7.07 .
330 0.08 6.9 .
340 0.09 6.29 .
7.57 The measurements in Table 3 clearly show the effectiveness of this absorber in Domex, and a decrease in absorbance and hence less effectiveness for the Veja product (which does not contain polymer and has a higher pH). In addition visual clues as to discoloration of the product indicated a degree of incompatibility of the absorber and the Vega product. It can be seen that the~comparative product (comp) which did not contain the absorbing material had little or no W
adsorbance.
Example 2: cleaning performance:
In order to demonstrate that the products according to the invention were effective cleaners cleaning effort was measured for the preferred product of the invention and an embodiment prepared by mixing Vega with the Benzophenone-3 W absorber. Results are given in table 4 below, in terms of the effort (in N.s) needed to clean a surface, either FormicaTM or enamel which had been soiled in a standard manner.
Table 4 ~~
Ve j a Domex Formica fatty 201 116 soil Enamel fatt soil 246 218 From the above examples it can be seen that the preferred compositions of the invention are both effective cleaners and effectively reduce W exposure of surfaces which have been treated with them.
Claims (10)
1. A hard surface cleaning composition comprising a surfactant and a UV-absorbing agent characterized in that it comprises:
a) 0.1-50%wt nonionic surfactant, b) 0.005-5%wt of a water voluble, anionic polymer having an average molecular weight of less than 1,000,000, wherein the ratio of polymer:nonionic is 0.1:1 or lees and, c) 0.01-5wt% of a UV-absorbing agent.
a) 0.1-50%wt nonionic surfactant, b) 0.005-5%wt of a water voluble, anionic polymer having an average molecular weight of less than 1,000,000, wherein the ratio of polymer:nonionic is 0.1:1 or lees and, c) 0.01-5wt% of a UV-absorbing agent.
2. Composition according to claim 7, wherein the polymer is 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.
3. Composition according to claim 2 wherein the polymer is selected from the group comprising polyacrylic acid, polymaleic anhydride and copolymers of either of the aforementioned with ethylene, styrene and methyl vinyl ether.
4. Composition according to claims 1-3 which further comprises 0.005-5%wt of a cationic surfactant.
5. Composition according to claims 1-4 having a pH of 3-12.
6. Composition according to claim 1-5 which further comprises a glycol ether or alkanol solvent of the general formula:
R1-0-(E0)m-(PO)n-R2, wherein R1 and R2 are independently C1-6 alkyl or H, but not both hydrogen, m and n are independently 0-5.
R1-0-(E0)m-(PO)n-R2, wherein R1 and R2 are independently C1-6 alkyl or H, but not both hydrogen, m and n are independently 0-5.
7. Composition according to claims 1-6 wherein the UV
absorbing agent comprises a benzophenone derivative.
absorbing agent comprises a benzophenone derivative.
8. Composition according to claim 7 which comprises 2-hydroxy-4-methoxybenzophenone.
9. Composition according to claim 7 which comprises phenylbenzimidazole sulphonic acid.
10. A method of reducing UV damage to hard surfaces by treating the surface with a cleaning composition comprising a UV-absorbing agent characterized in that the cleaning composition comprises:
a) 0.1-50%wt nonionic surfactant, b) 0.005-5%wt 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 and, c) 0.01-5wt% of a UV-absorbing agent.
a) 0.1-50%wt nonionic surfactant, b) 0.005-5%wt 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 and, c) 0.01-5wt% of a UV-absorbing agent.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9801078.8A GB9801078D0 (en) | 1998-01-19 | 1998-01-19 | Improvements relating to hard surface cleaners |
GB9801078.8 | 1998-01-19 | ||
PCT/EP1999/000246 WO1999036499A1 (en) | 1998-01-19 | 1999-01-08 | Hard surface cleaners |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2317544A1 true CA2317544A1 (en) | 1999-07-22 |
Family
ID=10825507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002317544A Abandoned CA2317544A1 (en) | 1998-01-19 | 1999-01-08 | Hard surface cleaners |
Country Status (13)
Country | Link |
---|---|
EP (1) | EP1049762A1 (en) |
JP (1) | JP2002509186A (en) |
AR (1) | AR014414A1 (en) |
AU (1) | AU3249599A (en) |
BR (1) | BR9900073A (en) |
CA (1) | CA2317544A1 (en) |
GB (1) | GB9801078D0 (en) |
HU (1) | HUP0100524A3 (en) |
ID (1) | ID25481A (en) |
TR (1) | TR200002087T2 (en) |
UY (1) | UY25362A1 (en) |
WO (1) | WO1999036499A1 (en) |
ZA (1) | ZA99188B (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
HUP0202360A2 (en) * | 1999-07-12 | 2002-11-28 | Unilever Nv | Hard surface cleaning composition comprising a uva-filter |
DE19945503A1 (en) * | 1999-09-23 | 2001-04-05 | Henkel Kgaa | Multi-phase cleaning agent with an antimicrobial effect |
EP1222244B1 (en) | 1999-10-22 | 2006-11-29 | The Procter & Gamble Company | Compositions for treating shoes and methods and articles employing same |
GB9927902D0 (en) * | 1999-11-25 | 2000-01-26 | Unilever Plc | Method of treating fabric |
US6861396B2 (en) | 2000-10-20 | 2005-03-01 | The Procter & Gamble Company | Compositions for pre-treating shoes and methods and articles employing same |
EP1403360B1 (en) * | 2002-09-27 | 2007-01-03 | Unilever N.V. | Cleaning composition and wipe |
JP2010538135A (en) * | 2007-09-05 | 2010-12-09 | ビーエーエスエフ ソシエタス・ヨーロピア | Home care or fabric care composition containing a dye polymer composite |
CA2769374A1 (en) | 2009-08-19 | 2011-02-24 | Unilever Plc | A process for cleaning teeth |
CA2770083A1 (en) | 2009-08-19 | 2011-02-24 | Kirtan Shravan Kamkar | A process and a device to clean substrates |
ES2543387T3 (en) * | 2009-08-19 | 2015-08-18 | Unilever N.V. | A process to clean hard surfaces |
JP6662845B2 (en) * | 2015-03-05 | 2020-03-11 | 日華化学株式会社 | Cleaning composition for hard surfaces |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4333385C2 (en) * | 1993-09-30 | 1997-01-30 | Friedrich A Spruegel | Surface disinfectants and cleaning agents |
GB9420037D0 (en) * | 1994-10-05 | 1994-11-16 | Johnson & Son Inc S C | (Carpet) foam cleaning composition |
GB9516147D0 (en) * | 1995-08-07 | 1995-10-04 | Unilever Plc | Improvements relating to hard-surface cleaning compositions |
GB9610865D0 (en) * | 1996-05-23 | 1996-07-31 | Unilever Plc | Detergent composition |
-
1998
- 1998-01-19 GB GBGB9801078.8A patent/GB9801078D0/en not_active Ceased
-
1999
- 1999-01-08 WO PCT/EP1999/000246 patent/WO1999036499A1/en not_active Application Discontinuation
- 1999-01-08 EP EP99930894A patent/EP1049762A1/en not_active Withdrawn
- 1999-01-08 ID IDW20001377A patent/ID25481A/en unknown
- 1999-01-08 TR TR2000/02087T patent/TR200002087T2/en unknown
- 1999-01-08 JP JP2000540204A patent/JP2002509186A/en not_active Withdrawn
- 1999-01-08 HU HU0100524A patent/HUP0100524A3/en unknown
- 1999-01-08 AU AU32495/99A patent/AU3249599A/en not_active Abandoned
- 1999-01-08 CA CA002317544A patent/CA2317544A1/en not_active Abandoned
- 1999-01-12 ZA ZA9900188A patent/ZA99188B/en unknown
- 1999-01-18 BR BR9900073-3A patent/BR9900073A/en not_active IP Right Cessation
- 1999-01-18 AR ARP990100173A patent/AR014414A1/en unknown
- 1999-01-19 UY UY25362A patent/UY25362A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
HUP0100524A2 (en) | 2001-06-28 |
ID25481A (en) | 2000-10-05 |
HUP0100524A3 (en) | 2002-02-28 |
JP2002509186A (en) | 2002-03-26 |
TR200002087T2 (en) | 2000-12-21 |
BR9900073A (en) | 2000-01-11 |
UY25362A1 (en) | 1999-09-27 |
AU3249599A (en) | 1999-08-02 |
GB9801078D0 (en) | 1998-03-18 |
EP1049762A1 (en) | 2000-11-08 |
WO1999036499A1 (en) | 1999-07-22 |
ZA99188B (en) | 2000-07-12 |
AR014414A1 (en) | 2001-02-28 |
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Legal Events
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FZDE | Discontinued |