EP1001013A1 - Procédé de nettoyage de surfaces d'émaux - Google Patents
Procédé de nettoyage de surfaces d'émaux Download PDFInfo
- Publication number
- EP1001013A1 EP1001013A1 EP98870250A EP98870250A EP1001013A1 EP 1001013 A1 EP1001013 A1 EP 1001013A1 EP 98870250 A EP98870250 A EP 98870250A EP 98870250 A EP98870250 A EP 98870250A EP 1001013 A1 EP1001013 A1 EP 1001013A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- alkyl
- composition
- enamel
- group
- compositions
- 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.)
- Granted
Links
- 210000003298 dental enamel Anatomy 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000004140 cleaning Methods 0.000 title claims abstract description 29
- 239000000203 mixture Substances 0.000 claims abstract description 177
- 150000001768 cations Chemical class 0.000 claims abstract description 35
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 230000002378 acidificating effect Effects 0.000 claims abstract description 27
- 230000003139 buffering effect Effects 0.000 claims abstract description 23
- 150000003839 salts Chemical class 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims abstract description 10
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims abstract description 9
- 150000001450 anions Chemical class 0.000 claims abstract description 9
- 150000002170 ethers Chemical class 0.000 claims abstract description 5
- 239000004094 surface-active agent Substances 0.000 claims description 31
- 239000004615 ingredient Substances 0.000 claims description 25
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 12
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 9
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 9
- HUCVOHYBFXVBRW-UHFFFAOYSA-M caesium hydroxide Inorganic materials [OH-].[Cs+] HUCVOHYBFXVBRW-UHFFFAOYSA-M 0.000 claims description 9
- 125000001453 quaternary ammonium group Chemical group 0.000 claims description 8
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 6
- 239000001099 ammonium carbonate Substances 0.000 claims description 6
- RQPZNWPYLFFXCP-UHFFFAOYSA-L barium dihydroxide Chemical compound [OH-].[OH-].[Ba+2] RQPZNWPYLFFXCP-UHFFFAOYSA-L 0.000 claims description 6
- 239000011736 potassium bicarbonate Substances 0.000 claims description 6
- 229910000028 potassium bicarbonate Inorganic materials 0.000 claims description 6
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 claims description 6
- 239000000908 ammonium hydroxide Substances 0.000 claims description 5
- 229910001422 barium ion Inorganic materials 0.000 claims description 5
- 229910001414 potassium ion Inorganic materials 0.000 claims description 5
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 claims description 4
- 239000000872 buffer Substances 0.000 claims description 4
- MFGOFGRYDNHJTA-UHFFFAOYSA-N 2-amino-1-(2-fluorophenyl)ethanol Chemical compound NCC(O)C1=CC=CC=C1F MFGOFGRYDNHJTA-UHFFFAOYSA-N 0.000 claims description 3
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 claims description 3
- 235000012538 ammonium bicarbonate Nutrition 0.000 claims description 3
- 235000012501 ammonium carbonate Nutrition 0.000 claims description 3
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 claims description 3
- 229910001863 barium hydroxide Inorganic materials 0.000 claims description 3
- NCMHKCKGHRPLCM-UHFFFAOYSA-N caesium(1+) Chemical compound [Cs+] NCMHKCKGHRPLCM-UHFFFAOYSA-N 0.000 claims description 3
- 235000015497 potassium bicarbonate Nutrition 0.000 claims description 3
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 3
- -1 ammonium ions Chemical class 0.000 description 102
- 125000000217 alkyl group Chemical group 0.000 description 60
- 125000004432 carbon atom Chemical group C* 0.000 description 54
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 33
- 239000002304 perfume Substances 0.000 description 27
- 235000019441 ethanol Nutrition 0.000 description 24
- 150000001875 compounds Chemical class 0.000 description 21
- 239000002253 acid Substances 0.000 description 20
- 229920006395 saturated elastomer Polymers 0.000 description 20
- 229920001577 copolymer Polymers 0.000 description 19
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 18
- 239000002689 soil Substances 0.000 description 15
- 150000001298 alcohols Chemical class 0.000 description 14
- 239000007844 bleaching agent Substances 0.000 description 14
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 13
- 150000007513 acids Chemical class 0.000 description 13
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 12
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 12
- KWIUHFFTVRNATP-UHFFFAOYSA-N glycine betaine Chemical compound C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 12
- 229920001519 homopolymer Polymers 0.000 description 12
- 239000002736 nonionic surfactant Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 150000001412 amines Chemical class 0.000 description 11
- 239000000463 material Substances 0.000 description 11
- 229920000642 polymer Polymers 0.000 description 11
- 239000000047 product Substances 0.000 description 11
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N Caprolactam Natural products O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 10
- 125000001931 aliphatic group Chemical group 0.000 description 10
- 229910052783 alkali metal Inorganic materials 0.000 description 10
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 10
- 239000000344 soap Substances 0.000 description 10
- 239000002904 solvent Substances 0.000 description 10
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 9
- 239000002738 chelating agent Substances 0.000 description 9
- 239000003599 detergent Substances 0.000 description 9
- 150000004676 glycans Chemical class 0.000 description 9
- 229920001282 polysaccharide Polymers 0.000 description 9
- 239000005017 polysaccharide Substances 0.000 description 9
- 239000011734 sodium Substances 0.000 description 9
- 125000004417 unsaturated alkyl group Chemical group 0.000 description 9
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 8
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 8
- 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 8
- 239000001257 hydrogen Substances 0.000 description 8
- 229910052739 hydrogen Inorganic materials 0.000 description 8
- 230000002209 hydrophobic effect Effects 0.000 description 8
- 239000002516 radical scavenger Substances 0.000 description 8
- 229910052708 sodium Inorganic materials 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 7
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 7
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 7
- 239000012190 activator Substances 0.000 description 7
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical group OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 7
- 229960003237 betaine Drugs 0.000 description 7
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 7
- 239000000975 dye Substances 0.000 description 7
- 235000001727 glucose Nutrition 0.000 description 7
- 125000001183 hydrocarbyl group Chemical group 0.000 description 7
- 125000001165 hydrophobic group Chemical group 0.000 description 7
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 7
- 239000000178 monomer Substances 0.000 description 7
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 7
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 7
- 239000011591 potassium Substances 0.000 description 7
- 229910052700 potassium Inorganic materials 0.000 description 7
- PSBDWGZCVUAZQS-UHFFFAOYSA-N (dimethylsulfonio)acetate Chemical compound C[S+](C)CC([O-])=O PSBDWGZCVUAZQS-UHFFFAOYSA-N 0.000 description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 6
- GLZPCOQZEFWAFX-UHFFFAOYSA-N Geraniol Chemical compound CC(C)=CCCC(C)=CCO GLZPCOQZEFWAFX-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 150000003863 ammonium salts Chemical class 0.000 description 6
- 239000003945 anionic surfactant Substances 0.000 description 6
- 238000009835 boiling Methods 0.000 description 6
- 239000011575 calcium Substances 0.000 description 6
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 6
- 239000008103 glucose Substances 0.000 description 6
- 150000002334 glycols Chemical class 0.000 description 6
- 239000004519 grease Substances 0.000 description 6
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 6
- 239000003755 preservative agent Substances 0.000 description 6
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 229940117986 sulfobetaine Drugs 0.000 description 6
- RQRTXGHHWPFDNG-UHFFFAOYSA-N 1-butoxy-1-propoxypropan-1-ol Chemical compound CCCCOC(O)(CC)OCCC RQRTXGHHWPFDNG-UHFFFAOYSA-N 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 5
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 5
- 125000003118 aryl group Chemical group 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 229910052791 calcium Inorganic materials 0.000 description 5
- 239000003093 cationic surfactant Substances 0.000 description 5
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 5
- 238000010998 test method Methods 0.000 description 5
- 239000000230 xanthan gum Substances 0.000 description 5
- 235000010493 xanthan gum Nutrition 0.000 description 5
- 229920001285 xanthan gum Polymers 0.000 description 5
- 229940082509 xanthan gum Drugs 0.000 description 5
- 239000002888 zwitterionic surfactant Substances 0.000 description 5
- XMGQYMWWDOXHJM-JTQLQIEISA-N (+)-α-limonene Chemical compound CC(=C)[C@@H]1CCC(C)=CC1 XMGQYMWWDOXHJM-JTQLQIEISA-N 0.000 description 4
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 description 4
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 4
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- ZTHYODDOHIVTJV-UHFFFAOYSA-N Propyl gallate Chemical compound CCCOC(=O)C1=CC(O)=C(O)C(O)=C1 ZTHYODDOHIVTJV-UHFFFAOYSA-N 0.000 description 4
- 125000003545 alkoxy group Chemical group 0.000 description 4
- 150000001720 carbohydrates Chemical group 0.000 description 4
- 150000007942 carboxylates Chemical class 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- QMVPMAAFGQKVCJ-UHFFFAOYSA-N citronellol Chemical compound OCCC(C)CCC=C(C)C QMVPMAAFGQKVCJ-UHFFFAOYSA-N 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 239000007859 condensation product Substances 0.000 description 4
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 4
- 238000010790 dilution Methods 0.000 description 4
- 239000012895 dilution Substances 0.000 description 4
- 150000002431 hydrogen Chemical group 0.000 description 4
- CDOSHBSSFJOMGT-UHFFFAOYSA-N linalool Chemical compound CC(C)=CCCC(C)(O)C=C CDOSHBSSFJOMGT-UHFFFAOYSA-N 0.000 description 4
- UWKAYLJWKGQEPM-LBPRGKRZSA-N linalyl acetate Chemical compound CC(C)=CCC[C@](C)(C=C)OC(C)=O UWKAYLJWKGQEPM-LBPRGKRZSA-N 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 150000007522 mineralic acids Chemical class 0.000 description 4
- WTEVQBCEXWBHNA-YFHOEESVSA-N neral Chemical compound CC(C)=CCC\C(C)=C/C=O WTEVQBCEXWBHNA-YFHOEESVSA-N 0.000 description 4
- 150000007524 organic acids Chemical class 0.000 description 4
- 229920000191 poly(N-vinyl pyrrolidone) Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 235000000346 sugar Nutrition 0.000 description 4
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 4
- QEMXHQIAXOOASZ-UHFFFAOYSA-N tetramethylammonium Chemical compound C[N+](C)(C)C QEMXHQIAXOOASZ-UHFFFAOYSA-N 0.000 description 4
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 4
- WEAPVABOECTMGR-UHFFFAOYSA-N triethyl 2-acetyloxypropane-1,2,3-tricarboxylate Chemical group CCOC(=O)CC(C(=O)OCC)(OC(C)=O)CC(=O)OCC WEAPVABOECTMGR-UHFFFAOYSA-N 0.000 description 4
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- WTEVQBCEXWBHNA-UHFFFAOYSA-N Citral Natural products CC(C)=CCCC(C)=CC=O WTEVQBCEXWBHNA-UHFFFAOYSA-N 0.000 description 3
- 244000060011 Cocos nucifera Species 0.000 description 3
- 235000013162 Cocos nucifera Nutrition 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 3
- 229920002125 Sokalan® Polymers 0.000 description 3
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical class OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- 229940022663 acetate Drugs 0.000 description 3
- 125000003342 alkenyl group Chemical group 0.000 description 3
- 150000003973 alkyl amines Chemical class 0.000 description 3
- 150000005215 alkyl ethers Chemical class 0.000 description 3
- WQZGKKKJIJFFOK-PHYPRBDBSA-N alpha-D-galactose Chemical group OC[C@H]1O[C@H](O)[C@H](O)[C@@H](O)[C@H]1O WQZGKKKJIJFFOK-PHYPRBDBSA-N 0.000 description 3
- 125000000129 anionic group Chemical group 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 125000002091 cationic group Chemical group 0.000 description 3
- IRAQOCYXUMOFCW-OSFYFWSMSA-N cedr-8-ene Chemical compound C1[C@]23[C@H](C)CC[C@H]3C(C)(C)[C@@H]1C(C)=CC2 IRAQOCYXUMOFCW-OSFYFWSMSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- WTEVQBCEXWBHNA-JXMROGBWSA-N citral A Natural products CC(C)=CCC\C(C)=C\C=O WTEVQBCEXWBHNA-JXMROGBWSA-N 0.000 description 3
- 229940096386 coconut alcohol Drugs 0.000 description 3
- IRAQOCYXUMOFCW-UHFFFAOYSA-N di-epi-alpha-cedrene Natural products C1C23C(C)CCC3C(C)(C)C1C(C)=CC2 IRAQOCYXUMOFCW-UHFFFAOYSA-N 0.000 description 3
- 229930182830 galactose Chemical group 0.000 description 3
- 125000003147 glycosyl group Chemical group 0.000 description 3
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 3
- 239000011976 maleic acid Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- DVEKCXOJTLDBFE-UHFFFAOYSA-N n-dodecyl-n,n-dimethylglycinate Chemical compound CCCCCCCCCCCC[N+](C)(C)CC([O-])=O DVEKCXOJTLDBFE-UHFFFAOYSA-N 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 description 3
- 230000002335 preservative effect Effects 0.000 description 3
- 125000000547 substituted alkyl group Chemical group 0.000 description 3
- 229910021653 sulphate ion Inorganic materials 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- DYLPEFGBWGEFBB-OSFYFWSMSA-N (+)-β-cedrene Chemical compound C1[C@]23[C@H](C)CC[C@H]3C(C)(C)[C@@H]1C(=C)CC2 DYLPEFGBWGEFBB-OSFYFWSMSA-N 0.000 description 2
- 239000001490 (3R)-3,7-dimethylocta-1,6-dien-3-ol Substances 0.000 description 2
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 description 2
- QMVPMAAFGQKVCJ-SNVBAGLBSA-N (R)-(+)-citronellol Natural products OCC[C@H](C)CCC=C(C)C QMVPMAAFGQKVCJ-SNVBAGLBSA-N 0.000 description 2
- CDOSHBSSFJOMGT-JTQLQIEISA-N (R)-linalool Natural products CC(C)=CCC[C@@](C)(O)C=C CDOSHBSSFJOMGT-JTQLQIEISA-N 0.000 description 2
- LQIAZOCLNBBZQK-UHFFFAOYSA-N 1-(1,2-Diphosphanylethyl)pyrrolidin-2-one Chemical compound PCC(P)N1CCCC1=O LQIAZOCLNBBZQK-UHFFFAOYSA-N 0.000 description 2
- IDQBJILTOGBZCR-UHFFFAOYSA-N 1-butoxypropan-1-ol Chemical compound CCCCOC(O)CC IDQBJILTOGBZCR-UHFFFAOYSA-N 0.000 description 2
- KNENSDLFTGIERH-UHFFFAOYSA-N 2,2,4,4-tetramethyl-3-phenylpentan-3-ol Chemical compound CC(C)(C)C(O)(C(C)(C)C)C1=CC=CC=C1 KNENSDLFTGIERH-UHFFFAOYSA-N 0.000 description 2
- VKZRWSNIWNFCIQ-UHFFFAOYSA-N 2-[2-(1,2-dicarboxyethylamino)ethylamino]butanedioic acid Chemical compound OC(=O)CC(C(O)=O)NCCNC(C(O)=O)CC(O)=O VKZRWSNIWNFCIQ-UHFFFAOYSA-N 0.000 description 2
- XNCSCQSQSGDGES-UHFFFAOYSA-N 2-[2-[bis(carboxymethyl)amino]propyl-(carboxymethyl)amino]acetic acid Chemical compound OC(=O)CN(CC(O)=O)C(C)CN(CC(O)=O)CC(O)=O XNCSCQSQSGDGES-UHFFFAOYSA-N 0.000 description 2
- QPRQEDXDYOZYLA-UHFFFAOYSA-N 2-methylbutan-1-ol Chemical compound CCC(C)CO QPRQEDXDYOZYLA-UHFFFAOYSA-N 0.000 description 2
- WRMNZCZEMHIOCP-UHFFFAOYSA-N 2-phenylethanol Chemical compound OCCC1=CC=CC=C1 WRMNZCZEMHIOCP-UHFFFAOYSA-N 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 2
- ZCTQGTTXIYCGGC-UHFFFAOYSA-N Benzyl salicylate Chemical compound OC1=CC=CC=C1C(=O)OCC1=CC=CC=C1 ZCTQGTTXIYCGGC-UHFFFAOYSA-N 0.000 description 2
- UYWQUFXKFGHYNT-UHFFFAOYSA-N Benzylformate Chemical compound O=COCC1=CC=CC=C1 UYWQUFXKFGHYNT-UHFFFAOYSA-N 0.000 description 2
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- 229940045998 sodium isethionate Drugs 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- RPACBEVZENYWOL-XFULWGLBSA-M sodium;(2r)-2-[6-(4-chlorophenoxy)hexyl]oxirane-2-carboxylate Chemical compound [Na+].C=1C=C(Cl)C=CC=1OCCCCCC[C@]1(C(=O)[O-])CO1 RPACBEVZENYWOL-XFULWGLBSA-M 0.000 description 1
- LADXKQRVAFSPTR-UHFFFAOYSA-M sodium;2-hydroxyethanesulfonate Chemical compound [Na+].OCCS([O-])(=O)=O LADXKQRVAFSPTR-UHFFFAOYSA-M 0.000 description 1
- QUCDWLYKDRVKMI-UHFFFAOYSA-M sodium;3,4-dimethylbenzenesulfonate Chemical compound [Na+].CC1=CC=C(S([O-])(=O)=O)C=C1C QUCDWLYKDRVKMI-UHFFFAOYSA-M 0.000 description 1
- 239000004334 sorbic acid Substances 0.000 description 1
- 235000010199 sorbic acid Nutrition 0.000 description 1
- 229940075582 sorbic acid Drugs 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229940037312 stearamide Drugs 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 150000003440 styrenes Chemical class 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium group Chemical group [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- QJVXKWHHAMZTBY-GCPOEHJPSA-N syringin Chemical compound COC1=CC(\C=C\CO)=CC(OC)=C1O[C@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 QJVXKWHHAMZTBY-GCPOEHJPSA-N 0.000 description 1
- 239000003784 tall oil Substances 0.000 description 1
- 150000003505 terpenes Chemical class 0.000 description 1
- 235000007586 terpenes Nutrition 0.000 description 1
- NPFVOOAXDOBMCE-UHFFFAOYSA-N trans-3-hexenyl acetate Natural products CCC=CCCOC(C)=O NPFVOOAXDOBMCE-UHFFFAOYSA-N 0.000 description 1
- GTZCVFVGUGFEME-UHFFFAOYSA-N trans-aconitic acid Natural products OC(=O)CC(C(O)=O)=CC(O)=O GTZCVFVGUGFEME-UHFFFAOYSA-N 0.000 description 1
- BJIOGJUNALELMI-UHFFFAOYSA-N trans-isoeugenol Natural products COC1=CC(C=CC)=CC=C1O BJIOGJUNALELMI-UHFFFAOYSA-N 0.000 description 1
- 125000005270 trialkylamine group Chemical group 0.000 description 1
- 125000002889 tridecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- SZEMGTQCPRNXEG-UHFFFAOYSA-M trimethyl(octadecyl)azanium;bromide Chemical compound [Br-].CCCCCCCCCCCCCCCCCC[N+](C)(C)C SZEMGTQCPRNXEG-UHFFFAOYSA-M 0.000 description 1
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 1
- GPRLSGONYQIRFK-MNYXATJNSA-N triton Chemical compound [3H+] GPRLSGONYQIRFK-MNYXATJNSA-N 0.000 description 1
- MWOOGOJBHIARFG-UHFFFAOYSA-N vanillin Chemical compound COC1=CC(C=O)=CC=C1O MWOOGOJBHIARFG-UHFFFAOYSA-N 0.000 description 1
- 235000012141 vanillin Nutrition 0.000 description 1
- FGQOOHJZONJGDT-UHFFFAOYSA-N vanillin Natural products COC1=CC(O)=CC(C=O)=C1 FGQOOHJZONJGDT-UHFFFAOYSA-N 0.000 description 1
- 239000003643 water by type Substances 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
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/044—Hydroxides or bases
-
- 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
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/10—Carbonates ; Bicarbonates
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
-
- 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
- C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
- C11D1/146—Sulfuric acid esters
-
- 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
-
- 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
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/14—Hard surfaces
Definitions
- the present invention relates to a process of cleaning enamel surfaces with a liquid acidic composition.
- compositions for cleaning enamel surfaces are well known in the art.
- Liquid compositions having an acidic pH for cleaning enamel surfaces have been extensively described in the art, especially in hard surface cleaning application (e.g., bathroom cleaner).
- said process of cleaning enamel surfaces may be used on various enamel surfaces.
- Enamel surfaces can be found in various places, e.g., in households : in kitchens (sinks and the like); in bathrooms (tubs, sinks, shower tiles, bathroom enamelware and the like); in washing machines; and dishes.
- a further advantage of the process as described herein is that the compositions used to clean enamel surfaces show good stain/soil removal performance.
- liquid acidic compositions show good stain/soil removal performance on various types of stains/soils in particular : greasy soils, e.g., greasy soap scum or greasy soils found in kitchens; limescale; mold; mildew; and other tough stains found on enamel surfaces.
- EP-B-580 838 and EP-A-647 706 disclose hard surface cleaning compositions comprising a surfactant and optionally ammonium hydroxide as a buffer. However, said applications do not disclose a process of cleaning enamel surfaces with a liquid acidic composition as described herein.
- US 4,501,680 discloses acidic liquid detergent compositions comprising mixtures of organic acids, an ether of diethylene glycol and a surfactant.
- the present invention encompasses a process of cleaning an enamel surface with a liquid acidic composition
- a liquid acidic composition comprising an enamel safe buffering system wherein said buffering system comprises a salt having : an anion selected from the group consisting of hydroxide and carbonate; and a cation that has an ionic radius larger than 115 pm; with the proviso that no ethers of diethylene glycol are present in said composition.
- said cation having an ionic radius larger than 115 pm is selected from the group consisting of a potassium ion, an ammonium ion, a cesium ion, a barium ion and a quaternary ammonium ion.
- composition further comprises a source of acidity.
- said composition further comprises a surfactant.
- the present invention further encompasses the use of an enamel safe buffering system in a composition to clean an enamel surface
- said buffering system comprises a salt having : an anion selected from the group consisting of hydroxide and carbonate; and a cation that has an ionic radius larger than 115 pm; whereby said composition is safe to enamel.
- the present invention encompasses a process of treating an enamel surface with a liquid acidic composition comprising an enamel safe buffering system as described herein.
- a liquid acidic composition comprising an enamel safe buffering system as described herein.
- said acidic liquid composition is contacted with said enamel surface.
- enamel surface it is meant herein any kind of surface being made of or coated with enamel.
- enamel titanium or zirconium white enamel or titanium or zirconium white powder enamel used as a coating for metal (e.g., steel) surfaces preferably to prevent corrosion of said metal surfaces.
- Enamel surfaces can typically be found in houses : e.g., in bathrooms or in kitchens : e.g., tiles, sinks, showers, shower wash basins, WCs, tubs, sinks, fixtures and fittings and the like. Furthermore, cookware, dishes and the like may have an enamel surface. Enamel surfaces may also be found on household appliances which may be coated with enamel on their inside and/or outside surface including, but not limited to, heating boiler, washing machines, automatic dryers, refrigerators, freezers, ovens, microwave ovens, dishwashers and so on. Further enamel surfaces may be found in industrial, architectural and the like applications. Examples of enamel surfaces found in said applications include enamel surfaces on or in tanks, pipelines, reaction vessels, pumps, chemical processing equipment, mechanical equipment, heat exchangers, hot water tanks, signs, silos or architectural panels.
- liquid acidic composition of the present invention may be contacted to the surface to be treated in its neat form or in its diluted form.
- diluted form it is meant herein that said liquid composition is diluted by the user typically with water.
- the composition is diluted prior to use to a typical dilution level of 10 to 400 times its weight of water, preferably from 10 to 200 and more preferably from 10 to 100.
- a usually recommended dilution level is a 1.2% dilution of the composition in water.
- liquid compositions are applied directly onto the enamel surface to be treated without undergoing any dilution, i.e., the liquid compositions herein are applied onto the hard-surface as described herein.
- a preferred process of cleaning an enamel surface according to the present invention is to apply the composition in diluted form without rinsing the hard-surface after application in order to obtain good soil/stain removal performance.
- Another preferred process of treating a enamel surface is to apply the composition, described by the present invention, either in neat or diluted form, leave it on said surface to act, optionally wipe said surface with an appropriate instrument, e.g., a sponge, and then preferably rinse said surface with water.
- an appropriate instrument e.g., a sponge
- the enamel surfaces to be treated may be soiled with a variety of soils, e.g., greasy soils (e.g., greasy soap scum, body grease, kitchen grease or burnt/sticky food residues typically found in a kitchen and the like) or so called “limescale-containing stains".
- soils e.g., greasy soils (e.g., greasy soap scum, body grease, kitchen grease or burnt/sticky food residues typically found in a kitchen and the like) or so called “limescale-containing stains”.
- limescale-containing stains it is meant herein any pure limescale stains, i.e., any stains composed essentially of mineral deposits, as well as limescale-containing stains, i.e., stains which contain not only mineral deposits like calcium and/or magnesium carbonate but also soap scum (e.g., calcium stearate) and other grease (e.g. body grease).
- the dilute cleaning performance may be evaluated by the following test method: tiles of enamel are prepared by applying to them a representative grease/particulate artificial soil followed by ageing.
- the test compositions and the reference composition are diluted (e.g., composition:water 1:50 or 1:100), applied to a sponge, and used to clean the tiles with a Sheen scrub tester.
- the number of strokes required to clean to 100% clean is recorded. A minimum of 6 replicates can be taken with each result being generated in duplicate against the reference on each soiled tile.
- test method for evaluating neat cleaning performance is identical to above except that the test compositions and reference are used undiluted and that after cleaning a rinsing cycle is performed with clean water.
- enamel white tiles (typically 24 cm * 4 cm) are covered with typical greasy soap scum soils mainly based on calcium stearate and artificial body soils commercially available (e.g., 0.3 grams with a sprayer).
- the soiled tiles are then dried in an oven at a temperature of 140°C for 20 minutes and then aged overnight at room temperature (around 20°C-25°C).
- the soiled tiles are cleaned using 3 ml of the liquid composition of the present invention poured directly on a Spontex® sponge.
- the ability of the composition to remove greasy soap scum is measured through the number of strokes needed to perfectly clean the surface. The lower the number of strokes, the higher the greasy soap scum cleaning ability of the composition.
- the liquid acidic composition is a liquid acidic composition
- the liquid acidic compositions according to the present invention are preferably aqueous compositions. Therefore, they may comprise from 70% to 99%, preferably from 75% to 95% and more preferably from 85% to 95% by weight of the total composition of water.
- liquid compositions of the present invention are acidic and therefore preferably have a pH below 7, preferably from 1 to 6.5, more preferably from 1 to 5, even more preferably from 2 to 5 and most preferably from 2 to 4.
- compositions according to the present invention are advantageously chemically stable, i.e., there are virtually no chemical reactions between the different ingredients of the compositions, and physically stable, i.e., that no phase separation occurs when stored in rapid aging test (RAT), i.e., storage at 50 °C for 10 days.
- RAT rapid aging test
- a proviso of the present invention is that the compositions do not contain ethers of diethylene glycol.
- ethers of diethylene glycol it is meant any mono-lower alkyl ether or phenyl ether of diethylene glycol as well as benzyl ether of diethylene glycol and mixtures thereof.
- lower alkyl ether of diethylene glycol it is meant C 2-6 alkyl ether of diethylene glycol.
- compositions used in a process according to the present invention comprise a buffering system.
- Said buffering system comprises a salt having : an anion selected from the group consisting of hydroxide and carbonate; and a cation that has an ionic radius larger than 115 pm.
- compositions of the present invention may comprise from 0.1% to 5%, preferably of from 0.1% to 4% and more preferably of from 0.1% to 3% by weight of the total composition of a buffering system.
- the salt is one whose cation has an ionic radius of at least 125 pm, more preferably of at least 130 pm, even more preferably of at least 135 pm, and most preferably of at least 140 pm.
- Suitable cations in said salt are potassium ions (ionic radius of K + is 133 pm), ammonium ions (ionic radius of NH 4 + is 142 pm), cesium ions (ionic radius of Cs + is 167 pm), barium ions (ionic radius of Ba 2+ is 134 pm) or quaternary ammonium ions.
- Suitable cations having an ionic radius larger than 115 pm include Ac 3+ , Ag + , Am 3+ , Ar + , Au + , Ba + , Ca + , Cd + , Ce + , Ce 3+ , Fr + , Hg + , Hg 2+ , La + , La 3+ , Pb 2+ , Ra 2+ , Rb + , Sr 2+ , Th 4+ , Tl + and Zr + .
- Sodium has an ionic radius of 112 pm and is therefore, not suitable as cation in said buffer ingredient.
- the cation in said salt is selected from the group consisting of a potassium ion, an ammonium ion, a cesium ion, a barium ion and a quaternary ammonium ion. More preferably the cation in said salt is a potassium ion or an ammonium ion.
- the anion in said salt is a hydroxide or a carbonate.
- hydroxide it is meant an OH - ion.
- carbonate it is meant an HCO 3 - or CO 3 2- ion.
- Suitable salts to be part of said buffering system are selected from the group consisting of potassium hydroxide (KOH), potassium carbonate (K 2 CO 3 ), potassium bicarbonate (KHCO 3 ), ammonium hydroxide (NH 4 OH), ammonium carbonate ((NH 4 ) 2 CO 3 ), ammonium bicarbonate (NH 4 HCO 3 ), cesium hydroxide (CsOH), barium hydroxide (Ba(OH) 2 ), barium carbonate (BaCO 3 ) and mixtures thereof.
- KOH potassium hydroxide
- K 2 CO 3 potassium carbonate
- KHCO 3 potassium bicarbonate
- NH 4 OH ammonium hydroxide
- NH 4 OH ammonium carbonate
- (NH 4 ) 2 CO 3 ) ammonium bicarbonate
- CsOH cesium hydroxide
- Ba(OH) 2 barium hydroxide
- BaCO 3 barium carbonate
- the salt is selected from the group consisting of potassium hydroxide (KOH), potassium carbonate (K 2 CO 3 ), potassium bicarbonate (KHCO 3 ), ammonium hydroxide (NH 4 OH), ammonium carbonate ((NH 4 ) 2 CO 3 ), ammonium bicarbonate (NH 4 HCO 3 ), cesium hydroxide (CsOH), barium hydroxide (Ba(OH) 2 ), barium carbonate (BaCO 3 ) and mixtures thereof. More preferably the salt is selected from the group consisting of potassium hydroxide, ammonium hydroxide and mixtures thereof.
- the buffering system consists of one ore more salts as described above.
- the present invention is based on the finding that a process of cleaning enamel with a liquid acidic composition comprising an enamel safe buffering system as described herein is safe to enamel surfaces.
- Another aspect of the present invention is the use of an enamel safe buffering system in a composition to clean an enamel surface
- said buffering system comprises a salt having : an anion selected from the group consisting of hydroxide and carbonate; and a cation that has an ionic radius larger than 115 pm; whereby said composition is safe to enamel.
- safety to enamel surfaces it is meant herein that the acidic compositions as described herein do not damage enamel surfaces as other acidic compositions may potentially do.
- Damage to enamel surfaces may be caused by small cations, i.e., cations having an ionic radius of 115 pm or less, present in acidic compositions used to clean said enamel surfaces.
- Said small cation can penetrate and spread through the superficial layers of the crystalline lattice of enamel.
- Said small cations may eventually replace cations originally present in said superficial layers of the crystalline lattice of enamel and/or otherwise modify said superficial layers of the crystalline lattice of enamel.
- the enamel surface looses its smoothness and consequently its gloss. The loss of gloss is perceived as damage to an enamel surface.
- the degree of enamel damage can be determined by the following enamel damage test method
- an enamel surface e.g., an enamel tile
- the surface is covered with a watch glass.
- the enamel surface is rinsed with water (either demineralised or tap) and then wiped dry.
- Visual examination (visual grading) or gloss measurements of the surface allow to verify whether the product is safe (no difference of gloss versus the untreated enamel surface) or unsafe (difference of gloss versus the untreated enamel surface) to enamel.
- compositions according to the present invention are formulated as acidic compositions. Therefore, said compositions may as a highly preferred optional ingredient comprise a source of acidity.
- the sources of acidity to be used herein may be any organic or inorganic acid well-known to those skilled in the art, or a mixture thereof.
- Suitable organic acids for use herein are those selected from the group consisting of citric acid, maleic acid, lactic acid, glycolic acid, succinic acid, glutaric acid and adipic acid, and mixtures thereof.
- a mixture of said acids suitable for use herein is commercially available from BASF under the trade name Sokalan® DCS.
- a preferred organic acid for use herein is citric acid.
- the inorganic acids for use herein have a pK a of less than 3.
- Suitable inorganic acids for use herein are those selected from the group consisting of sulphuric acid, chloridric acid, phosphoric acid, nitric acid, and mixtures thereof.
- a preferred inorganic acid for use herein is sulfuric acid.
- compositions of the present invention comprise a source of acidity between 0.5% and 10%, preferably between 1% and 8%, and most preferably between 2% and 6% by weight of the total composition.
- the liquid compositions of the present invention may preferably comprise a surfactant.
- Surfactants may be desired herein as they further contribute to the cleaning performance of the compositions of the present invention.
- Surfactants to be used herein include nonionic surfactants, cationic surfactants, anionic surfactants, zwitterionic surfactants, amphoteric surfactants, and mixtures thereof.
- compositions according to the present invention may comprise up to 15%, more preferably from 0.5% to 8%, even more preferably from 0.5% to 8%, and most preferably 0.5% to 8% by weight of the total composition of a surfactant.
- Suitable nonionic surfactants for use herein include a class of compounds, which may be broadly defined as compounds produced by the condensation of alkylene oxide groups (hydrophilic in nature) with an organic hydrophobic compound, which may be branched or linear aliphatic (e.g., Guerbet or secondary alcohol) or alkyl aromatic in nature.
- alkylene oxide groups hydrophilic in nature
- organic hydrophobic compound which may be branched or linear aliphatic (e.g., Guerbet or secondary alcohol) 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.
- suitable nonionic synthetic detergents include :
- alkylpolysaccharides disclosed in U.S. Patent 4,565,647, Llenado, issued January 21, 1986, having a hydrophobic group containing from 6 to 30 carbon atoms, preferably from 10 to 16 carbon atoms and polysaccharide, e.g., a polyglycoside, hydrophilic group containing from 1.3 to 10, preferably from 1.3 to 3, most preferably from 1.3 to 2.7 saccharide units.
- Any reducing saccharide containing 5 or 6 carbon atoms can be used, e.g., glucose, galactose, and galactosyl moieties can be substituted for the glucosyl moieties.
- the hydrophobic group is attached at the 2-, 3-, 4-, etc. positions thus giving a glucose or galactose as opposed to a glucoside or galactoside.
- the intersaccharide bonds can be, e.g., between the one position of the additional saccharide units and the 2-, 3-, 4-, and/or 6- positions of the preceding saccharide units.
- a polyalkyleneoxide chain joining the hydrophobic moiety and the polysaccharide moiety.
- the preferred alkyleneoxide is ethylene oxide.
- Typical hydrophobic groups include alkyl groups, either saturated or unsaturated, branched or unbranched containing from 8 to 18, preferably from 10 to 16, carbon atoms.
- the alkyl group can contain up to 3 hydroxy groups and/or the polyalkyleneoxide chain can contain up to 10, preferably less than 5, alkyleneoxide moieties.
- Suitable alkyl polysaccharides are octyl, nonyldecyl, undecyldodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, and octadecyl, di-, tri-, tetra-, penta-, and hexaglucosides, galactosides, lactosides, glucoses, fructosides, fructoses and/or galactoses.
- Suitable mixtures include coconut alkyl, di-, tri-, tetra-, and pentaglucosides and tallow alkyl tetra-, penta-, and hexaglucosides.
- the preferred alkylpolyglycosides have the formula: R 2 O(C n H 2n O) t (glucosyl) x wherein R 2 is selected from the group consisting of alkyl, alkylphenyl, hydroxyalkyl, hydroxyalkylphenyl, and mixtures thereof in which the alkyl groups contain from 10 to 18, preferably from 12 to 14, carbon atoms; n is 2 or 3, preferably 2; t is from 0 to 10, preferably 0; and x is from 1.3 to 10, preferably from 1.3 to 3, most preferably from 1.3 to 2.7.
- the glycosyl is preferably derived from glucose.
- the alcohol or alkylpolyethoxy alcohol is formed first and then reacted with glucose, or a source of glucose, to form the glucoside (attachment at the 1-position).
- the additional glycosyl units can then be attached between their 1-position and the preceding glycosyl units 2-, 3-, 4- and/or 6- position, preferably predominantely the 2- position.
- R 1 is H, C 1 -C 4 hydrocarbyl, 2-hydroxy ethyl, 2-hydroxypropyl, or a mixture thereof, preferably C 1 -C 4 alkyl, more preferably C 1 or C 2 alkyl, most preferably C 1 alkyl (i.e., methyl); and R 2 is a C 5 -C 31 hydrocarbyl, preferably straight chain C 7 -C 19 alkyl or alkenyl, more preferably straight chain C 9 -C 17 alkyl or alkenyl, most preferably straight chain C 11 -C 17 alkyl or alkenyl, or mixtures thereof; and Z is a polyhydroxyhydrocarbyl having a linear hydrocarbyl chain with at least 3 hydroxyls directly connected to the chain, or an alkoxylated derivative (preferably ethoxylated or propoxylated) thereof.
- Z preferably will be derived from a reducing sugar in a reductive amination reaction; more preferably Z is a glycityl.
- Suitable reducing sugars include glucose, fructose, maltose, lactose, galactose, mannose, and xylose.
- high dextrose corn syrup can be utilized as well as the individual sugars listed above. These corn syrups may yield a mix of sugar components for Z. It should be understood that it is by no means intended to exclude other suitable raw materials.
- Z preferably will be selected from the group consisting of -CH 2 -(CHOH) n -CH 2 OH, -CH(CH 2 OH)-(CHOH) n-1 -CH 2 OH, -CH 2 -(CHOH) 2 (CHOR')(CHOH)-CH 2 OH, where n is an integer from 3 to 5, inclusive, and R' is H or a cyclic or aliphatic monosaccharide, and alkoxylated derivatives thereof. Most preferred are glycityls wherein n is 4, particularly -CH 2 -(CHOH) 4 -CH 2 OH.
- R 1 can be, for example, N-methyl, N-ethyl, N-propyl, N-isopropyl, N-butyl, N-2-hydroxy ethyl, or N-2-hydroxy propyl.
- R 2 -CO-N ⁇ can be, for example, cocamide, stearamide, oleamide, lauramide, myristamide, capricamide, palmitamide, tallowamide, etc.
- Z can be 1-deoxyglucityl, 2-deoxyfructityl, 1-deoxymaltityl, 1-deoxylactityl, 1-deoxygalactityl, 1-deoxymannityl, 1-deoxymaltotriotityl, etc.
- Suitable nonionic surfactants for use herein include the amine oxides corresponding to the formula: R R' R'' N ⁇ O wherein R is a primary alkyl group containing from 6 to 24 carbons, preferably from 10 to 18 carbons, and wherein R' and R'' are, each, independently, an alkyl group containing 1 to 6 carbon atoms.
- the arrow in the formula is a conventional representation of a semi-polar bond.
- the preferred amine oxides are those in which the primary alkyl group has a straight chain in at least most of the molecules, generally at least 70%, preferably at least 90% of the molecules, and the amine oxides which are especially preferred are those in which R contains from 10 to 18 carbons and R' and R'' are both methyl.
- Exemplary of the preferred amine oxides are the N-hexyldimethylamine oxide, N-octyldimethylamine oxide, N-decyldimethylamine oxide, N-dodecyl dimethylamine oxide, N-tetradecyldimethylamine oxide, N-hexadecyl dimethylamine oxide, N-octadecyldimethylamine oxide, N-eicosyldimethylamine oxide, N-docosyldimethylamine oxide, N-tetracosyl dimethylamine oxide, the corresponding amine oxides in which one or both of the methyl groups are replaced with ethyl or 2-hydroxyethyl groups and mixtures thereof.
- a most preferred amine oxide for use herein is N-decyldimethylamine oxide.
- Suitable nonionic surfactants for the purpose of the invention are the phosphine or sulfoxide surfactants of formula: R R' R'' A ⁇ O wherein A is phosphorus or sulfur atom, R is a primary alkyl group containing 6-24 carbons, preferably 10-18 carbons, and wherein R' and R'' are, each, independently selected from methyl, ethyl and 2-hydroxyethyl.
- the arrow in the formula is a conventional representation of a semi-polar bond.
- suitable nonionic surfactants to be used are polyethylene oxide condensates of alkyl phenols, polyethylene oxide condensates of alkyl alcohols, alkylpolysaccharides, or mixtures thereof.
- C 6 -C 20 preferably C 8 -C 12 alkyl phenol ethoxylates having from 3 to 25, preferably 10 to 25 ethoxy groups and C 2 -C 24 , preferably C 8 -C 18 alcohol ethoxylates having from 2 to 35, preferably from 4 to 25, more preferably from 5 to 18 and most preferably from 3 to 15 ethylene oxide units, and mixtures thereof.
- Suitable zwitterionic surfactants for use herein contain both basic and acidic groups which form an inner salt giving both cationic and anionic hydrophilic groups on the same molecule at a relatively wide range of pH's.
- the typical cationic group is a quaternary ammonium group, although other positively charged groups like phosphonium, imidazolium and sulfonium groups can be used.
- the typical anionic hydrophilic groups are carboxylates and sulfonates, although other groups like sulfates, phosphonates, and the like can be used.
- a generic formula for preferred zwitterionic surfactants for use herein is : R 1 -N + (R 2 )(R 3 )R 4 X - wherein R 1 is a hydrophobic group; R 2 is hydrogen, C 1 -C 6 alkyl, hydroxy alkyl or other substituted C 1 -C 6 alkyl group; R 3 is C 1 -C 6 alkyl, hydroxy alkyl or other substituted C 1 -C 6 alkyl group which can also be joined to R 2 to form ring structures with the N, or a C 1 -C 6 carboxylic acid group or a C 1 -C 6 sulfonate group; R 4 is a moiety joining the cationic nitrogen atom to the hydrophilic group and is typically an alkylene, hydroxy alkylene, or polyalkoxy group containing from 1 to 10 carbon atoms; and X is the hydrophilic group which is a carboxy
- R 1 are aliphatic or aromatic, saturated or unsaturated, substituted or unsubstituted hydrocarbon chains that can contain linking groups such as amido groups, ester groups. More preferred R 1 is an alkyl group containing from 1 to 24, preferably from 8 to 18, and more preferably from 10 to 16 carbon atoms. These simple alkyl groups are preferred for cost and stability reasons.
- the hydrophobic group R 1 can also be an amido radical of the formula R a -C(O)-NR b -(C(R c ) 2 ) m , wherein R a is an aliphatic or aromatic, saturated or unsaturated, substituted or unsubstituted hydrocarbon chain containing from 8 up to 20 carbon atoms, preferably an alkyl group containing from 8 up to 20, preferably up to 18, more preferably up to 16 carbon atoms, R b is either a hydrogen a short chain alkyl or substituted alkyl containing from 1 to 4 carbon atoms, preferably a group selected from the group consisting of methyl, ethyl, propyl, hydroxy substituted ethyl or propyl and mixtures thereof, more preferably methyl or hydrogen, R c is selected from the group consisting of hydrogen and hydroxy groups, and m is from 1 to 4, preferably from 2 to 3, more preferably 3, with no more than one hydroxy group in any (C(R
- Preferred R 2 is hydrogen, or an alkyl or substituted alkyl containing from 1 to 4 carbon atoms, preferably a group selected from the group consisting of methyl, ethyl, propyl, hydroxy substituted ethyl or propyl and mixtures thereof, more preferably methyl.
- Preferred R 3 is a C 1 -C 4 carboxylic acid group, a C 1 -C 4 sulfonate group, or an alkyl or substituted alkyl containing from 1 to 4 carbon atoms, preferably a group selected from the group consisting of methyl, ethyl, propyl, hydroxy substituted ethyl or propyl and mixtures thereof, more preferably methyl.
- Preferred R 4 is (CH 2 ) n wherein n is an integer from 1 to 10, preferably from 1 to 6, more preferably is from 1 to 3.
- betaine/sulphobetaine Some common examples of betaine/sulphobetaine are described in U.S. Pat. Nos. 2,082,275, 2,702,279 and 2,255,082, incorporated herein by reference.
- alkyldimethyl betaines examples include coconut-dimethyl betaine, lauryl dimethyl betaine, decyl dimethyl betaine, 2-(N-decyl-N, N-dimethyl-ammonia)acetate, 2-(N-coco N, N-dimethylammonio) acetate, myristyl dimethyl betaine, palmityl dimethyl betaine, cetyl dimethyl betaine, stearyl dimethyl betaine.
- coconut dimethyl betaine is commercially available from Seppic under the trade name of Amonyl 265®.
- Lauryl betaine is commercially available from Albright & Wilson under the trade name Empigen BB/L®.
- betaine is Lauryl-immino-dipropionate commercially available from Rhone-Poulenc under the trade name Mirataine H2C-HA ®.
- Particularly preferred zwitterionic surfactants for use in the compositions of the present invention are the sulfobetaine surfactants as they deliver optimum grease cleaning benefits.
- sulfobetaine surfactants include tallow bis(hydroxyethyl) sulphobetaine, cocoamido propyl hydroxy sulfobetaines which are commercially available from Rhone Poulenc and Witco, under the trade name of Mirataine CBS® and Rewoteric AM CAS 15® respectively.
- amidobetaines/amidosulfobetaine include cocoamidoethylbetaine, cocoamidopropyl betaine or C 10 -C 14 fatty acylamidopropylene(hydropropylene)sulfobetaine.
- C 10 -C 14 fatty acylamidopropylene(hydropropylene)sulfobetaine is commercially available from Sherex Company under the trade name "Varion CAS® sulfobetaine".
- Suitable amines for use herein are according to the following formula RR'R''N wherein R is a saturated or unsaturated, substituted or unsubstituted, linear or branched alkyl groups containing from 1 to 30 carbon atoms, and preferably from 1 to 20 carbon atoms and wherein R' and R'' are independently saturated or unsaturated, substituted or unsubstituted, linear or branched alkyl groups containing from 1 to 30 carbon atoms or hydrogen.
- Particularly preferred amines to be used according to the present invention are amines having the following formula RR'R''N wherein R is a saturated or unsaturated, linear or branched alkyl group containing from 1 to 30 carbon atoms, preferably from 8 to 20, more preferably from 6 to 16, most preferably from 8 to 14 carbon atoms and wherein R' and R'' are independently substituted or unsubstituted, linear or branched alkyl groups containing from 1 to 4 carbon atoms, preferably from 1 to 3 carbon atoms, and more preferably are methyl groups, or mixtures thereof.
- Suitable amines for use herein are for instance C 12 dimethyl amine, coconut dimethyl amine, C 12 -C 16 dimethyl amine. Said amines may be commercially available from Hoechst under the trade name Genamin®, AKZO under the trade name Aromox® or Fina under the trade name Radiamine®.
- Suitable quaternary ammonium surfactants for use herein are according to the formula R 1 R 2 R 3 R 4 N + X - , wherein X is a counteranion such as halogen, methyl sulphate, methyl sulphonate, or hydroxide, R 1 is a saturated or unsaturated, substituted or unsubstituted, linear or branched alkyl group containing from 1 to 30 carbon atoms, preferably from 12 to 20, more preferably from 8 to 20 carbon atoms and R 2 , R 3 and R 4 are independently hydrogen, or saturated or unsaturated, substituted or unsubstituted, linear or branched alkyl groups containing from 1 to 4 carbon atoms, preferably from 1 to 3 and more preferably methyl.
- R 1 is a C 10 -C 18 hydrocarbon chain, most preferably C 12 , C 14 , or C 16 , and R 2 , R 3 and R 4 are all three methyl, and X is halogen, preferably bromide or chloride, most preferably bromide.
- quaternary ammonium surfactants are myristyl trimethylammonium methyl sulphate, cetyl trimethylammonium methyl sulphate, lauryl trimethyl ammonium bromide, stearyl trimethyl ammonium bromide (STAB), cetyl trimethyl ammonium bromide (CTAB) and myristyl trimethyl ammonium bromide (MTAB). Highly preferred herein are lauryl trimethyl ammonium salts.
- Such trimethyl quaternary ammonium surfactants may be commercially available from Hoechst, or from Albright & Wilson under the trade name Empigen CM®.
- Cationic surfactants suitable for use in compositions of the present invention are those having a long-chain hydrocarbyl group.
- cationic surfactants include the ammonium surfactants such as alkyldimethylammonium halogenides, and those surfactants having the formula: [R 2 (OR 3 ) y ][R 4 (OR 3 ) y ] 2 R 5 N + X -
- R 2 is an alkyl or alkyl benzyl group having from 8 to 18 carbon atoms in the alkyl chain
- each R 3 is selected from the group consisting of -CH 2 CH 2 -, -CH 2 CH(CH 3 )-, -CH 2 CH(CH 2 OH)-, -CH 2 CH 2 CH 2 -, and mixtures thereof
- each R 4 is selected from the group consisting of C 1 -C 4 alkyl, C 1 -C 4 hydroxyalkyl, benzyl ring structures formed by joining the two R 4 groups, -CH 2
- Amphoteric and ampholytic detergents which can be either cationic or anionic depending upon the pH of the system are represented by detergents such as dodecylbeta-alanine, N-alkyltaurines such as the one prepared by reacting dodecylamine with sodium isethionate according to the teaching of U.S. Pat. No. 2,658,072, N-higher alkylaspartic acids such as those produced according to the teaching of U.S. Pat. No. 2,438,091, and the products sold under the trade name "Miranol", and described in U.S. Pat. No. 2,528,378, said patents being incorporated herein by reference. Additional synthetic detergents and listings of their commercial sources can be found in McCutcheon's Detergents and Emulsifiers, North American Ed. 1980, incorporated herein by reference.
- anionic surfactants for use herein are all those commonly known by those skilled in the art.
- the anionic surfactants for use herein include alkyl sulphonates, alkyl aryl sulphonates, alkyl sulphates, alkyl alkoxylated sulphates, C 6 -C 20 alkyl alkoxylated linear or branched diphenyl oxide disulphonates, or mixtures thereof.
- Suitable alkyl sulphonates for use herein include water-soluble salts or acids of the formula RSO 3 M wherein R is a C 6 -C 20 linear or branched, saturated or unsaturated alkyl group, preferably a C 8 -C 18 alkyl group and more preferably a C 10 -C 16 alkyl group, and M is H or a cation, e.g., an alkali metal cation (e.g., sodium, potassium, lithium), or ammonium or substituted ammonium (e.g., methyl-, dimethyl-, and trimethyl ammonium cations and quaternary ammonium cations, such as tetramethyl-ammonium and dimethyl piperdinium cations and quaternary ammonium cations derived from alkylamines such as ethylamine, diethylamine, triethylamine, and mixtures thereof, and the like).
- R is a C 6 -C 20 linear
- Suitable alkyl aryl sulphonates for use herein include water-soluble salts or acids of the formula RSO 3 M wherein R is an aryl, preferably a benzyl, substituted by a C 6 -C 20 linear or branched saturated or unsaturated alkyl group, preferably a C 8 -C 18 alkyl group and more preferably a C 10 -C 16 alkyl group, and M is H or a cation, e.g., an alkali metal cation (e.g., sodium, potassium, lithium, calcium, magnesium and the like) or ammonium or substituted ammonium (e.g., methyl-, dimethyl-, and trimethyl ammonium cations and quaternary ammonium cations, such as tetramethyl-ammonium and dimethyl piperdinium cations and quaternary ammonium cations derived from alkylamines such as ethylamine, diethylamine, trieth
- C 14 -C 16 alkyl sulphonate is Hostapur® SAS available from Hoechst.
- An example of commercially available alkyl aryl sulphonate is Lauryl aryl sulphonate from Su.Ma..
- Particularly preferred alkyl aryl sulphonates are alkyl benzene sulphonates commercially available under trade name Nansa® available from Albright&Wilson.
- Suitable alkyl sulphate surfactants for use herein are according to the formula R 1 SO 4 M wherein R 1 represents a hydrocarbon group selected from the group consisting of straight or branched alkyl radicals containing from 6 to 20 carbon atoms and alkyl phenyl radicals containing from 6 to 18 carbon atoms in the alkyl group.
- M is H or a cation, e.g., an alkali metal cation (e.g., sodium, potassium, lithium, calcium, magnesium and the like) or ammonium or substituted ammonium (e.g., methyl-, dimethyl-, and trimethyl ammonium cations and quaternary ammonium cations, such as tetramethyl-ammonium and dimethyl piperdinium cations and quaternary ammonium cations derived from alkylamines such as ethylamine, diethylamine, triethylamine, and mixtures thereof, and the like).
- alkali metal cation e.g., sodium, potassium, lithium, calcium, magnesium and the like
- ammonium or substituted ammonium e.g., methyl-, dimethyl-, and trimethyl ammonium cations and quaternary ammonium cations, such as tetramethyl-ammonium and dimethyl piperdinium cations and
- Particularly preferred branched alkyl sulphates to be used herein are those containing from 10 to 14 total carbon atoms like Isalchem 123 AS®.
- Also preferred alkyl sulphates are the alkyl sulphates where the alkyl chain comprises a total of 12 carbon atoms, i.e., sodium 2-butyl octyl sulphate.
- alkyl sulphate is commercially available from Condea under the trade name Isofol® 12S.
- Particularly suitable liner alkyl sulphonates include C 12 -C 16 paraffin sulphonate like Hostapur® SAS commercially available from Hoechst.
- Suitable alkyl alkoxylated sulphate surfactants for use herein are according to the formula RO(A) m SO 3 M wherein R is an unsubstituted C 6 -C 20 alkyl or hydroxyalkyl group having a C 6 -C 20 alkyl component, preferably a C 12 -C 20 alkyl or hydroxyalkyl, more preferably C 12 -C 18 alkyl or hydroxyalkyl, A is an ethoxy or propoxy unit, m is greater than zero, typically between 0.5 and 6, more preferably between 0.5 and 3, and M is H or a cation which can be, for example, a metal cation (e.g., sodium, potassium, lithium, calcium, magnesium, etc.), ammonium or substituted-ammonium cation.
- R is an unsubstituted C 6 -C 20 alkyl or hydroxyalkyl group having a C 6 -C 20 alkyl component, preferably a C 12 -C
- Alkyl ethoxylated sulfates as well as alkyl propoxylated sulfates are contemplated herein.
- Specific examples of substituted ammonium cations include methyl-, dimethyl-, trimethyl-ammonium and quaternary ammonium cations, such as tetramethyl-ammonium, dimethyl piperdinium and cations derived from alkanolamines such as ethylamine, diethylamine, triethylamine, mixtures thereof, and the like.
- Exemplary surfactants are C 12 -C 18 alkyl polyethoxylate (1.0) sulfate (C 12 -C 18 E(1.0)SM), C 12 -C 18 alkyl polyethoxylate (2.25) sulfate (C 12 -C 18 E(2.25)SM), C 12 -C 18 alkyl polyethoxylate (3.0) sulfate (C 12 -C 18 E(3.0)SM), and C 12 -C 18 alkyl polyethoxylate (4.0) sulfate (C 12 -C 18 E(4.0)SM), wherein M is conveniently selected from sodium and potassium.
- Suitable C 6 -C 20 alkyl alkoxylated linear or branched diphenyl oxide disulphonate surfactants for use herein are according to the following formula: wherein R is a C 6 -C 20 linear or branched, saturated or unsaturated alkyl group, preferably a C 12 -C 18 alkyl group and more preferably a C 14 -C 16 alkyl group, and X+ is H or a cation, e.g., an alkali metal cation (e.g., sodium, potassium, lithium, calcium, magnesium and the like).
- R is a C 6 -C 20 linear or branched, saturated or unsaturated alkyl group, preferably a C 12 -C 18 alkyl group and more preferably a C 14 -C 16 alkyl group
- X+ is H or a cation, e.g., an alkali metal cation (e.g., sodium, potassium, lithium, calcium, magnesium and the like).
- Particularly suitable C 6 -C 20 alkyl alkoxylated linear or branched diphenyl oxide disulphonate surfactants to be used herein are the C12 branched di phenyl oxide disulphonic acid and C16 linear di phenyl oxide disulphonate sodium salt respectively commercially available by DOW under the trade name Dowfax 2A1® and Dowfax 8390®.
- anionic surfactants useful herein include salts (including, for example, sodium, potassium, ammonium, and substituted ammonium salts such as mono-, di- and triethanolamine salts) of soap, C 8 -C 24 olefinsulfonates, sulphonated polycarboxylic acids prepared by sulphonation of the pyrolyzed product of alkaline earth metal citrates, e.g., as described in British patent specification No.
- alkylpolyglycolethersulfates (containing up to 10 moles of ethylene oxide); alkyl ester sulfonates such as C 14-16 methyl ester sulfonates; acyl glycerol sulfonates, fatty oleyl glycerol sulfates, alkyl phenol ethylene oxide ether sulfates, alkyl phosphates, isethionates such as the acyl isethionates, N-acyl taurates, alkyl succinamates and sulfosuccinates, monoesters of sulfosuccinate (especially saturated and unsaturated C 12 -C 18 monoesters) diesters of sulfosuccinate (especially saturated and unsaturated C 6 -C 14 diesters), acyl sarcosinates, sulfates of alkylpolysaccharides such as the sulfates
- Resin acids and hydrogenated resin acids are also suitable, such as rosin, hydrogenated rosin, and resin acids and hydrogenated resin acids present in or derived from tall oil. Further examples are given in "Surface Active Agents and Detergents" (Vol. I and II by Schwartz, Perry and Berch). A variety of such surfactants are also generally disclosed in U.S. Patent 3,929,678, issued December 30, 1975 to Laughlin, et al. at Column 23, line 58 through Column 29, line 23.
- the surfactants to be used herein as optional ingredients are selected from the group consisting of nonionic surfactants, cationic surfactants, anionic surfactants, zwitterionic surfactants, amphoteric surfactants, and mixtures thereof. More preferably said surfactant is a nonionic surfactant or an anionic surfactant or a mixture thereof.
- compositions herein may further comprise conventional enamel cleaning ingredients.
- the liquid compositions according to the present invention may comprise a variety of optional ingredients depending on the technical benefit aimed for and the surface treated.
- Suitable optional ingredients for use herein include a solvent, a builder, a chelant, a buffer, a bactericide, a hydrotrope, a colorant, a stabilizer, a radical scavenger, a vinylpyrrolidone homopolymer or copolymer, a polysaccharide polymer, a bleach, a bleach activator, a preservative, a suds controlling agent like a fatty acid, an enzyme, a soil suspender, a dye transfer agent, a brightener, an anti dusting agent, a dispersant, a dye transfer inhibitor, a pigment, an acid, a dye and/or a perfume.
- compositions of the present invention may further comprise a solvent, as a highly preferred optional ingredient.
- Solvents are desired herein because they contribute to the greasy soils cleaning performance of the composition herein.
- Suitable solvents for use herein include glycols or alkoxylated glycols, alkoxylated aromatic alcohols, aromatic alcohols, aliphatic branched alcohols, alkoxylated aliphatic branched alcohols, alkoxylated linear C 1 -C 5 alcohols, linear C 1 -C 5 alcohols, C 8 -C 14 alkyl and cycloalkyl hydrocarbons and halohydrocarbons and mixtures thereof with the proviso that said solvent is not an ether of diethylene glycol as described herein.
- Suitable glycols to be used herein are according to the formula HO-CR1R2-OH wherein R1 and R2 are independently H or a C 2 -C 10 saturated or unsaturated aliphatic hydrocarbon chain and/or cyclic. Suitable glycols to be used herein are dodecaneglycol and/or propanediol.
- Suitable alkoxylated glycols to be used herein are according to the formula R-(A)n-R1-OH wherein R is H, OH, a linear saturated or unsaturated alkyl of from 1 to 20 carbon atoms, preferably from 2 to 15 and more preferably from 2 to 10 carbon atoms, wherein R1 is a linear saturated or unsaturated alkyl of from 3 to 20 carbon atoms, preferably from 3 to 15 and more preferably from 3 to 10 carbon atoms, and A is an alkoxy group preferably ethoxy, methoxy, and/or propoxy and n is from 1 to 5, preferably 1 to 2.
- Suitable alkoxylated glycols to be used herein are methoxy octadecanol and/or ethoxyethoxyethanol.
- Suitable alkoxylated aromatic alcohols to be used herein are according to the formula R-(A) n -OH wherein R is an alkyl substituted or non-alkyl substituted aryl group of from 1 to 20 carbon atoms, preferably from 2 to 15 and more preferably from 2 to 10 carbon atoms, wherein A is an alkoxy group preferably butoxy, propoxy and/or ethoxy, and n is an integer of from 1 to 5, preferably 1 to 2.
- Suitable alkoxylated aromatic alcohols are benzoxyethanol and/or benzoxypropanol.
- Suitable aromatic alcohols to be used herein are according to the formula R-OH wherein R is an alkyl substituted or non-alkyl substituted aryl group of from 1 to 20 carbon atoms, preferably from 1 to 15 and more preferably from 1 to 10 carbon atoms.
- R is an alkyl substituted or non-alkyl substituted aryl group of from 1 to 20 carbon atoms, preferably from 1 to 15 and more preferably from 1 to 10 carbon atoms.
- a suitable aromatic alcohol to be used herein is benzyl alcohol.
- Suitable aliphatic branched alcohols to be used herein are according to the formula R-OH wherein R is a branched saturated or unsaturated alkyl group of from 1 to 20 carbon atoms, preferably from 2 to 15 and more preferably from 5 to 12 carbon atoms.
- Particularly suitable aliphatic branched alcohols to be used herein include 2-ethylbutanol and/or 2-methylbutanol.
- Suitable alkoxylated aliphatic branched alcohols to be used herein are according to the formula R-(A) n -OH wherein R is a branched saturated or unsaturated alkyl group of from 1 to 20 carbon atoms, preferably from 2 to 15 and more preferably from 5 to 12 carbon atoms, wherein A is an alkoxy group preferably butoxy, propoxy and/or ethoxy, and n is an integer of from 1 to 5, preferably 1 to 2.
- Suitable alkoxylated aliphatic branched alcohols include 1-methylpropoxyethanol and/or 2-methylbutoxyethanol.
- Suitable alkoxylated linear C 1 -C 5 alcohols to be used herein are according to the formula R-(A) n -OH wherein R is a linear saturated or unsaturated alkyl group of from 1 to 5 carbon atoms, preferably from 2 to 4 carbon atoms, wherein A is an alkoxy group preferably butoxy, propoxy and/or ethoxy, and n is an integer of from 1 to 5, preferably 1 to 2.
- Suitable alkoxylated aliphatic linear C 1 -C 5 alcohols are butoxy propoxy propanol (n-BPP), butoxyethanol, butoxypropanol, ethoxyethanol or mixtures thereof. Butoxy propoxy propanol is commercially available under the trade name n-BPP® from Dow chemical.
- Suitable linear C 1 -C 5 alcohols to be used herein are according to the formula R-OH wherein R is a linear saturated or unsaturated alkyl group of from 1 to 5 carbon atoms, preferably from 2 to 4 carbon atoms.
- Suitable linear C 1 -C 5 alcohols are methanol, ethanol, propanol or mixtures thereof.
- solvents include butyltriglycol ether, ter amilic alcohol and the like. Particularly preferred solvents to be used herein are butoxy propoxy propanol, benzyl alcohol, butoxypropanol, ethanol, methanol, isopropanol and mixtures thereof.
- the preferred solvent for use herein is butoxy propoxy propanol (n-BPP).
- compositions of the present invention comprise from 0.1% to 8%, preferably from 0.5% to 5% and more preferably from 1% to 3% by weight of the total composition of a solvent.
- compositions of the present invention may comprise a vinylpyrrolidone homopolymer or copolymer.
- compositions of the present invention may comprise from 0.01% to 5%, more preferably from 0.05% to 3% and most preferably from 0.05% to 1% by weight of the total composition of a vinylpyrrolidone homopolymer or copolymer.
- Suitable vinylpyrrolidone homopolymers for use herein are homopolymers of N-vinylpyrrolidone having the following repeating monomer: wherein n (degree of polymerisation) is an integer of from 10 to 1,000,000, preferably from 20 to 100,000, and more preferably from 20 to 10,000.
- suitable vinylpyrrolidone homopolymers for use herein have an average molecular weight of from 1,000 to 100,000,000, preferably from 2,000 to 10,000,000, more preferably from 5,000 to 1,000,000, and most preferably from 50,000 to 500,000.
- Suitable vinylpyrrolidone homopolymers are commercially available from ISP Corporation, New York, NY and Montreal, Canada under the product names PVP K-15® (viscosity molecular weight of 10,000), PVP K-30® (average molecular weight of 40,000), PVP K-60® (average molecular weight of 160,000), and PVP K-90® (average molecular weight of 360,000).
- Suitable vinylpyrrolidone homopolymers which are commercially available from BASF Cooperation include Sokalan HP 165®, Sokalan HP 12®, Luviskol K30®, Luviskol K60®, Luviskol K80®, Luviskol K90® and other vinylpyrrolidone homopolymers known to persons skilled in the detergent field (see for example EP-A-262,897 and EP-A-256,696).
- Suitable copolymers of vinylpyrrolidone for use herein include copolymers of N-vinylpyrrolidone and alkylenically unsaturated monomers or mixtures thereof.
- the alkylenically unsaturated monomers of the copolymers herein include unsaturated dicarboxylic acids such as maleic acid, chloromaleic acid, fumaric acid, itaconic acid, citraconic acid, phenylmaleic acid, aconitic acid, acrylic acid, N-vinylimidazole and vinyl acetate. Any of the anhydrides of the unsaturated acids may be employed, for example acrylate, methacrylate. Aromatic monomers like styrene, sulphonated styrene, alpha-methyl styrene, vinyl toluene, t-butyl styrene and similar well-known monomers may be used.
- the molecular weight of the copolymer of vinylpyrrolidone is not especially critical so long as the copolymer is water-soluble, has some surface activity and is adsorbed to the hard-surface from the liquid composition comprising it in such a manner as to increase the hydrophilicity of the surface.
- the preferred copolymers of N-vinylpyrrolidone and alkylenically unsaturated monomers or mixtures thereof have a molecular weight of between 1,000 and 1,000,000, preferably between 10,000 and 500,000 and more preferably between 10,000 and 200,000.
- N-vinylimidazole N-vinylpyrrolidone polymers for use herein have an average molecular weight range from 5,000 to 1,000,000, preferably from 5,000 to 500,000, and more preferably from 10,000 to 200,000.
- the average molecular weight range was determined by light scattering as described in Barth H.G. and Mays J.W. Chemical Analysis Vol 113, "Modern Methods of Polymer Characterization".
- Such copolymers of N-vinylpyrrolidone and alkylenically unsaturated monomers like PVP/vinyl acetate copolymers are commercially available under the trade name Luviskol® series from BASF.
- copolymers of vinylpyrrolidone for use in the compositions of the present invention also include quaternized or unquaternized vinylpyrrolidone/dialkylaminoalkyl acrylate or methacrylate copolymers.
- the polymers can be prepared
- the preferred quaternized or unquaternized vinylpyrrolidone/dialkylaminoalkyl acrylate or methacrylate copolymers for use herein have a molecular weight of between 1,000 and 1,000,000, preferably between 10,000 and 500,000 and more preferably between 10,000 and 100,000.
- Such vinylpyrrolidone/dialkylaminoalkyl acrylate or methacrylate copolymers are commercially available under the name copolymer 845®, Gafquat 734®, or Gafquat 755® from ISP Corporation, New York, NY and Montreal, Canada or from BASF under the tradename Luviquat®.
- Preferred vinylpyrrolidone homopolymers or copolymers for use herein are the vinylpyrrolidone homopolymers.
- compositions of the present invention may comprise a polysaccharide polymer.
- compositions of the present invention may comprise from 0.01% to 5%, more preferably from 0.05% to 3% and most preferably from 0.05 % to 1% by weight of the total composition of a polysaccharide polymer.
- Suitable polysaccharide polymers for use herein include substituted cellulose materials like carboxymethylcellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxymethyl cellulose, succinoglycan and naturally occurring polysaccharide polymers like xanthan gum, guar gum, locust bean gum, tragacanth gum or derivatives thereof, or mixtures thereof.
- xanthan gum and derivatives thereof are particularly polysaccharide polymers for use herein.
- Xanthan gum and derivatives thereof may be commercially available for instance from Kelco under the trade name Keltrol RD®, Kelzan S ® or Kelzan T®.
- Other suitable Xanthan gum is commercially available by Rhone Poulenc under the trade name Rhodopol T® and Rhodigel X747®.
- Succinoglycan gum for use herein is commercially available by Rhone Poulenc under the trade name Rheozan ®.
- the liquid compositions according to the present invention may be coloured. Accordingly, they may comprise a dye. Suitable dyes for use herein are stable dyes. By “stable”, it is meant herein a compound which is chemically and physically stable in the acidic environment of the compositions herein.
- compositions according to the present invention may further comprise a preservative as an optional ingredient.
- a preservative as an optional ingredient.
- Preservatives to be used herein include all those known to those skilled in the art ho hard-surface cleaner compositions.
- Preservatives are desired herein because they contribute to the stability of the compositions herein.
- Suitable preservatives for use herein are diazolidinyl urea, triethyl citrate, propyl 4-hydroxybenzoate, sorbic acid, Na salt of p-hydroxybenzoate or gluteraldehyde or a mixture thereof.
- compositions of the present invention may comprise a radical scavenger.
- Suitable radical scavengers for use herein include the well-known substituted mono and dihydroxy benzenes and their analogs, alkyl and aryl carboxylates and mixtures thereof.
- Preferred such radical scavengers for use herein include di-tert-butyl hydroxy toluene (BHT), hydroquinone, di-tert-butyl hydroquinone, mono-tert-butyl hydroquinone, tert-butyl-hydroxy anysole, benzoic acid, toluic acid, catechol, t-butyl catechol, benzylamine, 1,1,3-tris(2-methyl-4-hydroxy-5-t-butylphenyl) butane, n-propyl-gallate or mixtures thereof and highly preferred is di-tert-butyl hydroxy toluene.
- Such radical scavengers like N-propyl-gallate may be commercially available from Nipa Laboratories under the trade name Nip
- Radical scavengers when used are typically present herein in amounts up to 10% and preferably from 0.001% to 0.5% by weight of the total composition.
- radical scavengers may contribute to the chemical stability of the compositions of the present invention.
- compositions according to the present invention may further comprise a perfume.
- Suitable perfumes for use herein include materials which provide an olfactory aesthetic benefit and/or cover any "chemical" odour that the product may have.
- the main function of a small fraction of the highly volatile, low boiling (having low boiling points), perfume components in these perfumes is to improve the fragrance odour of the product itself, rather than impacting on the subsequent odour of the surface being cleaned.
- some of the less volatile, high boiling perfume ingredients provide a fresh and clean impression to the surfaces, and it is desirable that these ingredients be deposited and present on the dry surface.
- Perfume ingredients can be readily solubilized in the compositions, for instance by an anionic detergent surfactant, when present.
- the perfume ingredients and compositions suitable to be used herein are the conventional ones known in the art. Selection of any perfume component, or amount of perfume, is based solely on aesthetic considerations.
- Suitable perfume compounds and compositions can be found in the art including U.S. Pat. Nos. : 4,145,184, Brain and Cummins, issued March 20, 1979; 4,209,417, Whyte, issued June 24, 1980; 4,515,705, Moeddel, issued May 7, 1985; and 4,152,272, Young, issued May 1, 1979, all of said patents being incorporated herein by reference.
- the degree of substantivity of a perfume is roughly proportional to the percentages of substantive perfume material used.
- Relatively substantive perfumes contain at least 1%, preferably at least 10%, substantive perfume materials.
- Substantive perfume materials are those odorous compounds that deposit on surfaces via the cleaning process and are detectable by people with normal olfactory acuity.
- Such materials typically have vapour pressures lower than that of the average perfume material. Also, they typically have molecular weights of 200 and above, and are detectable at levels below those of the average perfume material.
- Perfume ingredients useful herein, along with their odor character, and their physical and chemical properties, such as boiling point and molecular weight, are given in "Perfume and Flavor Chemicals (Aroma Chemicals),” Steffen Arctander, published by the author, 1969, incorporated herein by reference.
- Examples of the highly volatile, low boiling, perfume ingredients are : anethole, benzaldehyde, benzyl acetate, benzyl alcohol, benzyl formate, iso-bornyl acetate, camphene, ciscitral (neral), citronellal, citronellol, citronellyl acetate, para-cymene, decanal, dihydrolinalool, dihydromyrcenol, dimethyl phenyl carbinol, eucaliptol, geranial, geraniol, geranyl acetate, geranyl nitrite, cis-3-hexenyl acetate, hydroxycitronellal, d-limonene, linalool, linalool oxide, linalyl acetate, linalyl propionate, methyl anthranilate, alpha-methyl ionone, methyl nonyl acetaldehyde
- lavandin contains as major components : linalool; linalyl acetate; geraniol; and citronellol. Lemon oil and orange terpenes both contain 95% of d-limonene.
- moderately volatile perfume ingredients are : amyl cinnamic aldehyde, iso-amyl salicylate, beta-caryophyllene, cedrene, cinnamic alcohol, coumarin, dimethyl benzyl carbinyl acetate, ethyl vanillin, eugenol, iso-eugenol, flor acetate, heliotropine, 3-cis-hexenyl salicylate, hexyl salicylate, lilial (paratertiarybutyl-alpha-methyl hydrocinnamic aldehyde), gamma-methyl ionone, nerolidol, patchouli alcohol, phenyl hexanol, beta-selinene, trichloromethyl phenyl carbinyl acetate, triethyl citrate, vanillin, and veratraldehyde.
- Cedarwood terpenes are
- Examples of the less volatile, high boiling, perfume ingredients are : benzophenone, benzyl salicylate, ethylene brassylate, galaxolide (1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethyl-cyclopenta-gama-2-benzopyran), hexyl cinnamic aldehyde, lyral (4-(4-hydroxy-4-methyl pentyl)-3-cyclohexene-10-carboxaldehyde), methyl cedrylone, methyl dihydro jasmonate, methyl-beta-naphthyl ketone, musk indanone, musk ketone, musk tibetene, and phenylethyl phenyl acetate.
- compositions herein may comprise a perfume ingredient, in amounts up to 5.0%, preferably in amounts of 0.1% to 1.5% by weight of the total composition.
- Another class of optional compounds for use herein includes chelating agents.
- Chelating agents may be incorporated in the compositions herein in amounts ranging up to 10.0%, preferably 0.01% to 5.0% by weight of the total composition.
- Suitable phosphonate chelating agents to be used herein may include alkali metal ethane 1-hydroxy diphosphonates (HEDP), alkylene poly (alkylene phosphonate), as well as amino phosphonate compounds, including amino aminotri(methylene phosphonic acid) (ATMP), nitrilo trimethylene phosphonates (NTP), ethylene diamine tetra methylene phosphonates, and diethylene triamine penta methylene phosphonates (DTPMP).
- the phosphonate compounds may be present either in their acid form or as salts of different cations on some or all of their acid functionalities.
- Preferred phosphonate chelating agents to be used herein are diethylene triamine penta methylene phosphonate (DTPMP) and ethane 1-hydroxy diphosphonate (HEDP). Such phosphonate chelating agents are commercially available from Monsanto under the trade name DEQUEST®.
- Polyfunctionally-substituted aromatic chelating agents may also be useful in the compositions herein. See U.S. patent 3,812,044, issued May 21, 1974, to Connor et al.
- Preferred compounds of this type in acid form are dihydroxydisulfobenzenes such as 1,2-dihydroxy -3,5-disulfobenzene.
- a preferred biodegradable chelating agent for use herein is ethylene diamine N,N'-disuccinic acid, or alkali metal, or alkaline earth, ammonium or substitutes ammonium salts thereof or mixtures thereof.
- Ethylenediamine N,N'-disuccinic acids, especially the (S,S) isomer, have been extensively described in US patent 4, 704, 233, November 3, 1987, to Hartman and Perkins.
- Ethylenediamine N,N'-disuccinic acid is, for instance, commercially available under the tradename ssEDDS® from Palmer Research Laboratories.
- Suitable amino carboxylates to be used herein include ethylene diamine tetra acetates, diethylene triamine pentaacetates, diethylene triamine pentaacetate (DTPA), N-hydroxyethylethylenediamine triacetates, nitrilotri-acetates, ethylenediamine tetrapropionates, triethylenetetraaminehexa-acetates, ethanol-diglycines, propylene diamine tetracetic acid (PDTA) and methyl glycine di-acetic acid (MGDA), both in their acid form, or in their alkali metal, ammonium, and substituted ammonium salt forms.
- PDTA propylene diamine tetracetic acid
- MGDA methyl glycine di-acetic acid
- Particularly suitable amino carboxylates to be used herein are diethylene triamine penta acetic acid, propylene diamine tetracetic acid (PDTA) which is, for instance, commercially available from BASF under the trade name Trilon FS® and methyl glycine di-acetic acid (MGDA).
- PDTA propylene diamine tetracetic acid
- MGDA methyl glycine di-acetic acid
- carboxylate chelating agents to be used herein include salicylic acid, aspartic acid, glutamic acid, glycine, malonic acid or mixtures thereof.
- liquid compositions herein may also comprise a bleaching component.
- Any bleach known to those skilled in the art may be suitable to be used herein including any peroxygen bleach as well as any hypohalite bleach.
- Suitable peroxygen bleaches for use herein include hydrogen peroxide or sources thereof.
- a source of hydrogen peroxide refers to any compound which produces active oxygen when said compound is in contact with water.
- Suitable water-soluble sources of hydrogen peroxide for use herein include percarbonates, preformed percarboxylic acids, persilicates, persulphates, perborates, organic and inorganic peroxides and/or hydroperoxides.
- Suitable hypohalite bleaches for use herein include chlorine releasing components as, e.g., alkali metal hypochlorites.
- the compositions according to the present invention are stable in presence of this bleaching component.
- alkali metal hypochlorites are preferred, other hypochlorite compounds may also be used herein and, e.g., can be selected from calcium and magnesium hypochlorite.
- a preferred alkali metal hypochlorite for use herein is sodium hypochlorite.
- compositions of the present invention that comprise a peroxygen bleach
- said compositions may further comprise a bleach activator.
- bleach activator it is meant herein a compound which reacts with peroxygen bleach like hydrogen peroxide to form a peracid.
- the peracid thus formed constitutes the activated bleach.
- Suitable bleach activators to be used herein include those belonging to the class of esters, amides, imides, or anhydrides.
- Suitable compounds of this type are disclosed in British Patent GB 1 586 769 and GB 2 143 231 and a method for their formation into a prilled form is described in European Published Patent Application EP-A-62 523.
- Suitable examples of such compounds to be used herein are tetracetyl ethylene diamine (TAED), sodium 3,5,5 trimethyl hexanoyloxybenzene sulphonate, diperoxy dodecanoic acid as described for instance in US 4 818 425 and nonylamide of peroxyadipic acid as described for instance in US 4 259 201 and n-nonanoyloxybenzenesulphonate (NOBS).
- TAED tetracetyl ethylene diamine
- NOBS n-nonanoyloxybenzenesulphonate
- N-acyl caprolactams selected from the group consisting of substituted or unsubstituted benzoyl caprolactam, octanoyl caprolactam, nonanoyl caprolactam, hexanoyl caprolactam, decanoyl caprolactam, undecenoyl caprolactam, formyl caprolactam, acetyl caprolactam, propanoyl caprolactam, butanoyl caprolactam pentanoyl caprolactam or mixtures thereof.
- a particular family of bleach activators of interest was disclosed in EP 624 154, and particularly preferred in that family is acetyl triethyl citrate (ATC).
- Acetyl triethyl citrate has the advantage that it is environmental-friendly as it eventually degrades into citric acid and alcohol. Furthermore, acetyl triethyl citrate has a good hydrolytical stability in the product upon storage and it is an efficient bleach activator. Finally, it provides good building capacity to the composition.
- compositions herein may be packaged in a variety of suitable detergent packaging known to those skilled in the art.
- suitable detergent packaging known to those skilled in the art.
- the liquid compositions are preferably packaged in conventional detergent plastic bottles.
- compositions herein may be packaged in manually or electrically operated spray dispensing containers, which are usually made of synthetic organic polymeric plastic materials. Accordingly, the present invention also encompasses liquid cleaning compositions of the invention packaged in a spray dispenser, preferably in a trigger spray dispenser or pump spray dispenser.
- said spray-type dispensers allow to uniformly apply to a relatively large area of a surface to be cleaned the liquid cleaning compositions suitable for use according to the present invention.
- Such spray-type dispensers are particularly suitable to clean vertical surfaces.
- Suitable spray-type dispensers to be used according to the present invention include manually operated foam trigger-type dispensers sold for example by Specialty Packaging Products, Inc. or Continental Sprayers, Inc. These types of dispensers are disclosed, for instance, in US-4,701 311 to Dunnining et al. and US-4,646,973 and US-4,538,745 both to Focarracci. Particularly preferred to be used herein are spray-type dispensers such as T 8500® commercially available from Continental Spray International or T 8100® commercially available from Canyon, Northern Ireland. In such a dispenser the liquid composition is divided in fine liquid droplets resulting in a spray that is directed onto the surface to be treated.
- the composition contained in the body of said dispenser is directed through the spray-type dispenser head via energy communicated to a pumping mechanism by the user as said user activates said pumping mechanism. More particularly, in said spray-type dispenser head the composition is forced against an obstacle, e.g., a grid or a cone or the like, thereby providing shocks to help atomise the liquid composition, i.e., to help the formation of liquid droplets.
- an obstacle e.g., a grid or a cone or the like
- compositions were made comprising the listed ingredients in the listed proportions (weight %).
- Dobanol® 91-8 1.3 1.5 - 3.5 - - 2.5 - - Isalchem 123 - 1.5 - 3.5 - 1.4 5.0 - - 3.0 3.0 AS® Lutensol® AO 30 - - - - - 1.5 - 2.0 - - - n-BPP 2.0 2.0 2.0 - 2.0 2.0 - 3.0 5.8 2.0 Citric Acid 3.5 3.5 3.0 3.5 3.5 3.5 - - - 5.5 3.5 Maleic Acid - - - - - - - - 2.5 - - Luviskol K60® 0.1 - - 0.05 0.1 - 0.1 - - 0.1 0.1 KelzanT® 0.3 0.6 - 0.3 - - - - - - 0.3 KOH 1.1 0.8 1.
- Isalchem 123 AS® is a branched alkyl sulphates commercially available from Enichem.
- Kelzan T® is a Xanthan gum supplied by Kelco.
- Luviskol K60® is a Polyvinylpyrrolidone supplied by BASF.
- n-BPP is butoxy propoxy propanol commercially available from Dow Chemical.
- Dobanol® 91-8 is a C 9 -C 11 ethoxylated alcohol commercially available from Shell.
- Lutensol® AO 30 is a C 12-14 ethoxylated alcohol commercially available from BASF.
- compositions are safe to enamel when used to treat enamel surfaces.
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- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
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Priority Applications (14)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69837478T DE69837478T2 (de) | 1998-11-10 | 1998-11-10 | Verfahren zum Reinigen von Emailoberflächen |
AT98870250T ATE358712T1 (de) | 1998-11-10 | 1998-11-10 | Verfahren zum reinigen von emailoberflächen |
ES98870250T ES2283048T3 (es) | 1998-11-10 | 1998-11-10 | Procedimiento de limpieza de superficies de esmalte. |
EP98870250A EP1001013B1 (fr) | 1998-11-10 | 1998-11-10 | Procédé de nettoyage de surfaces d'émaux |
PE1999001129A PE20001222A1 (es) | 1998-11-10 | 1999-11-08 | Proceso para limpiar superficies esmaltadas |
CO99070881A CO5221037A1 (es) | 1998-11-10 | 1999-11-10 | Proceso de limpiar superficies esmaltadas |
ARP990105714A AR018970A1 (es) | 1998-11-10 | 1999-11-10 | Proceso de limpiar superficies esmaltadas |
US09/831,609 US6648983B1 (en) | 1998-11-10 | 1999-11-10 | Process of cleaning enamel surfaces |
TR2001/01309T TR200101309T2 (tr) | 1998-11-10 | 1999-11-10 | Emaye yüzeylerin temizlenmesine ilişkin yöntem |
AU21476/00A AU2147600A (en) | 1998-11-10 | 1999-11-10 | Process of cleaning enamel surfaces |
CA002349535A CA2349535C (fr) | 1998-11-10 | 1999-11-10 | Procede de nettoyage de surfaces en email |
BR9915239-8A BR9915239A (pt) | 1998-11-10 | 1999-11-10 | Processo de limpeza de superfìcies de esmalte |
JP2000581150A JP2002529584A (ja) | 1998-11-10 | 1999-11-10 | ほうろう表面の洗浄方法。 |
PCT/US1999/026603 WO2000027983A1 (fr) | 1998-11-10 | 1999-11-10 | Procede de nettoyage de surfaces en email |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98870250A EP1001013B1 (fr) | 1998-11-10 | 1998-11-10 | Procédé de nettoyage de surfaces d'émaux |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1001013A1 true EP1001013A1 (fr) | 2000-05-17 |
EP1001013B1 EP1001013B1 (fr) | 2007-04-04 |
Family
ID=8237120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98870250A Expired - Lifetime EP1001013B1 (fr) | 1998-11-10 | 1998-11-10 | Procédé de nettoyage de surfaces d'émaux |
Country Status (13)
Country | Link |
---|---|
EP (1) | EP1001013B1 (fr) |
JP (1) | JP2002529584A (fr) |
AR (1) | AR018970A1 (fr) |
AT (1) | ATE358712T1 (fr) |
AU (1) | AU2147600A (fr) |
BR (1) | BR9915239A (fr) |
CA (1) | CA2349535C (fr) |
CO (1) | CO5221037A1 (fr) |
DE (1) | DE69837478T2 (fr) |
ES (1) | ES2283048T3 (fr) |
PE (1) | PE20001222A1 (fr) |
TR (1) | TR200101309T2 (fr) |
WO (1) | WO2000027983A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9630206B2 (en) | 2005-05-12 | 2017-04-25 | Innovatech, Llc | Electrosurgical electrode and method of manufacturing same |
CN111214843A (zh) * | 2020-03-02 | 2020-06-02 | 黄冈永安药业有限公司 | 一种高品质甲基牛磺酸钠的蒸馏装置及生产方法 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1167500A1 (fr) * | 2000-06-29 | 2002-01-02 | The Procter & Gamble Company | Procédé pour le nettoyage d'une surface dure |
JP4069443B2 (ja) * | 2002-11-26 | 2008-04-02 | 栗田工業株式会社 | アルミニウムまたはアルミニウム合金を含む金属表面のスケール洗浄剤及びそれを用いたアルミニウムまたはアルミニウム合金を含む金属表面のスケール洗浄方法 |
US7147634B2 (en) | 2005-05-12 | 2006-12-12 | Orion Industries, Ltd. | Electrosurgical electrode and method of manufacturing same |
JP6713348B2 (ja) * | 2016-05-27 | 2020-06-24 | 花王株式会社 | 硬質表面用液体洗浄剤組成物 |
JP6644639B2 (ja) * | 2016-05-27 | 2020-02-12 | 花王株式会社 | 食器用液体洗浄剤組成物 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2469450A1 (fr) * | 1979-11-12 | 1981-05-22 | Solitaire Produits Entretien F | Produit de detartrage et de nettoyage en particulier de surfaces en faience emaillee telles que des cuvettes de w.c. |
US4501680A (en) * | 1983-11-09 | 1985-02-26 | Colgate-Palmolive Company | Acidic liquid detergent composition for cleaning ceramic tiles without eroding grout |
GB2273105A (en) * | 1992-12-03 | 1994-06-08 | Jeyes Group Plc | Thickened aqueous cleansing compositions |
EP0606712A1 (fr) * | 1993-01-13 | 1994-07-20 | The Clorox Company | Des compositions de nettoyage acides aqueuses |
-
1998
- 1998-11-10 DE DE69837478T patent/DE69837478T2/de not_active Expired - Lifetime
- 1998-11-10 EP EP98870250A patent/EP1001013B1/fr not_active Expired - Lifetime
- 1998-11-10 ES ES98870250T patent/ES2283048T3/es not_active Expired - Lifetime
- 1998-11-10 AT AT98870250T patent/ATE358712T1/de not_active IP Right Cessation
-
1999
- 1999-11-08 PE PE1999001129A patent/PE20001222A1/es not_active Application Discontinuation
- 1999-11-10 CA CA002349535A patent/CA2349535C/fr not_active Expired - Fee Related
- 1999-11-10 CO CO99070881A patent/CO5221037A1/es not_active Application Discontinuation
- 1999-11-10 AU AU21476/00A patent/AU2147600A/en not_active Abandoned
- 1999-11-10 WO PCT/US1999/026603 patent/WO2000027983A1/fr active Application Filing
- 1999-11-10 BR BR9915239-8A patent/BR9915239A/pt not_active IP Right Cessation
- 1999-11-10 JP JP2000581150A patent/JP2002529584A/ja active Pending
- 1999-11-10 TR TR2001/01309T patent/TR200101309T2/xx unknown
- 1999-11-10 AR ARP990105714A patent/AR018970A1/es not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2469450A1 (fr) * | 1979-11-12 | 1981-05-22 | Solitaire Produits Entretien F | Produit de detartrage et de nettoyage en particulier de surfaces en faience emaillee telles que des cuvettes de w.c. |
US4501680A (en) * | 1983-11-09 | 1985-02-26 | Colgate-Palmolive Company | Acidic liquid detergent composition for cleaning ceramic tiles without eroding grout |
GB2273105A (en) * | 1992-12-03 | 1994-06-08 | Jeyes Group Plc | Thickened aqueous cleansing compositions |
EP0606712A1 (fr) * | 1993-01-13 | 1994-07-20 | The Clorox Company | Des compositions de nettoyage acides aqueuses |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9630206B2 (en) | 2005-05-12 | 2017-04-25 | Innovatech, Llc | Electrosurgical electrode and method of manufacturing same |
US10463420B2 (en) | 2005-05-12 | 2019-11-05 | Innovatech Llc | Electrosurgical electrode and method of manufacturing same |
US11246645B2 (en) | 2005-05-12 | 2022-02-15 | Innovatech, Llc | Electrosurgical electrode and method of manufacturing same |
CN111214843A (zh) * | 2020-03-02 | 2020-06-02 | 黄冈永安药业有限公司 | 一种高品质甲基牛磺酸钠的蒸馏装置及生产方法 |
Also Published As
Publication number | Publication date |
---|---|
AU2147600A (en) | 2000-05-29 |
AR018970A1 (es) | 2001-12-12 |
CA2349535A1 (fr) | 2000-05-18 |
CO5221037A1 (es) | 2002-11-28 |
DE69837478T2 (de) | 2007-12-13 |
ES2283048T3 (es) | 2007-10-16 |
WO2000027983A1 (fr) | 2000-05-18 |
JP2002529584A (ja) | 2002-09-10 |
EP1001013B1 (fr) | 2007-04-04 |
BR9915239A (pt) | 2001-07-24 |
DE69837478D1 (de) | 2007-05-16 |
TR200101309T2 (tr) | 2001-09-21 |
PE20001222A1 (es) | 2000-11-30 |
ATE358712T1 (de) | 2007-04-15 |
CA2349535C (fr) | 2005-04-12 |
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