EP0697036B1 - Silberkorrosionsschutzmittel ii - Google Patents
Silberkorrosionsschutzmittel ii Download PDFInfo
- Publication number
- EP0697036B1 EP0697036B1 EP94917579A EP94917579A EP0697036B1 EP 0697036 B1 EP0697036 B1 EP 0697036B1 EP 94917579 A EP94917579 A EP 94917579A EP 94917579 A EP94917579 A EP 94917579A EP 0697036 B1 EP0697036 B1 EP 0697036B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- detergent
- silver
- primary
- group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005260 corrosion Methods 0.000 title claims abstract description 30
- 239000011814 protection agent Substances 0.000 title abstract description 8
- 239000003513 alkali Substances 0.000 claims abstract description 14
- WQGWDDDVZFFDIG-UHFFFAOYSA-N pyrogallol Chemical class OC1=CC=CC(O)=C1O WQGWDDDVZFFDIG-UHFFFAOYSA-N 0.000 claims abstract description 13
- -1 heterocyclic hydrazones Chemical class 0.000 claims abstract description 11
- OPTASPLRGRRNAP-UHFFFAOYSA-N cytosine Chemical class NC=1C=CNC(=O)N=1 OPTASPLRGRRNAP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 125000003277 amino group Chemical group 0.000 claims abstract description 6
- HWSJQFCTYLBBOF-UHFFFAOYSA-N 2,5-diamino-4-hydroxy-1h-pyrimidin-6-one Chemical class NC1=NC(O)=C(N)C(O)=N1 HWSJQFCTYLBBOF-UHFFFAOYSA-N 0.000 claims abstract description 5
- VTSFNCCQCOEPKF-UHFFFAOYSA-N 3-amino-1h-pyridin-2-one Chemical class NC1=CC=CN=C1O VTSFNCCQCOEPKF-UHFFFAOYSA-N 0.000 claims abstract description 5
- DUFGYCAXVIUXIP-UHFFFAOYSA-N 4,6-dihydroxypyrimidine Chemical class OC1=CC(O)=NC=N1 DUFGYCAXVIUXIP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 150000005010 aminoquinolines Chemical class 0.000 claims abstract description 5
- 150000004780 naphthols Chemical class 0.000 claims abstract description 5
- 150000003142 primary aromatic amines Chemical class 0.000 claims abstract description 5
- ZZYXNRREDYWPLN-UHFFFAOYSA-N pyridine-2,3-diamine Chemical class NC1=CC=CN=C1N ZZYXNRREDYWPLN-UHFFFAOYSA-N 0.000 claims abstract description 5
- GGOZGYRTNQBSSA-UHFFFAOYSA-N pyridine-2,3-diol Chemical class OC1=CC=CN=C1O GGOZGYRTNQBSSA-UHFFFAOYSA-N 0.000 claims abstract description 5
- FNXKBSAUKFCXIK-UHFFFAOYSA-M sodium;hydrogen carbonate;8-hydroxy-7-iodoquinoline-5-sulfonic acid Chemical class [Na+].OC([O-])=O.C1=CN=C2C(O)=C(I)C=C(S(O)(=O)=O)C2=C1 FNXKBSAUKFCXIK-UHFFFAOYSA-M 0.000 claims abstract description 5
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- NXPPAOGUKPJVDI-UHFFFAOYSA-N naphthalene-1,2-diol Chemical class C1=CC=CC2=C(O)C(O)=CC=C21 NXPPAOGUKPJVDI-UHFFFAOYSA-N 0.000 claims abstract 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 47
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- 239000000203 mixture Substances 0.000 claims description 20
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- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 claims description 13
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- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 12
- 239000013543 active substance Substances 0.000 claims description 11
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 claims description 11
- 239000003112 inhibitor Substances 0.000 claims description 11
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 10
- LNTHITQWFMADLM-UHFFFAOYSA-N gallic acid Chemical compound OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 claims description 10
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- LJCWONGJFPCTTL-UHFFFAOYSA-N 4-hydroxyphenylglycine Chemical compound OC(=O)C(N)C1=CC=C(O)C=C1 LJCWONGJFPCTTL-UHFFFAOYSA-N 0.000 claims description 6
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- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 claims description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 6
- BGRWYDHXPHLNKA-UHFFFAOYSA-N Tetraacetylethylenediamine Chemical group CC(=O)N(C(C)=O)CCN(C(C)=O)C(C)=O BGRWYDHXPHLNKA-UHFFFAOYSA-N 0.000 claims description 6
- XIWMTQIUUWJNRP-UHFFFAOYSA-N amidol Chemical compound NC1=CC=C(O)C(N)=C1 XIWMTQIUUWJNRP-UHFFFAOYSA-N 0.000 claims description 6
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- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 6
- VTIIJXUACCWYHX-UHFFFAOYSA-L disodium;carboxylatooxy carbonate Chemical compound [Na+].[Na+].[O-]C(=O)OOC([O-])=O VTIIJXUACCWYHX-UHFFFAOYSA-L 0.000 claims description 6
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- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 6
- 229940045872 sodium percarbonate Drugs 0.000 claims description 6
- AJGLCXBDYCEVIE-UHFFFAOYSA-N 5-chloro-3-hydroxy-1h-pyridin-2-one Chemical compound OC1=CC(Cl)=CN=C1O AJGLCXBDYCEVIE-UHFFFAOYSA-N 0.000 claims description 5
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- QCDYQQDYXPDABM-UHFFFAOYSA-N phloroglucinol Chemical compound OC1=CC(O)=CC(O)=C1 QCDYQQDYXPDABM-UHFFFAOYSA-N 0.000 claims description 4
- 229960001553 phloroglucinol Drugs 0.000 claims description 4
- 229940079877 pyrogallol Drugs 0.000 claims description 4
- 150000003839 salts Chemical group 0.000 claims description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 4
- 239000004382 Amylase Substances 0.000 claims description 3
- JPYHHZQJCSQRJY-UHFFFAOYSA-N Phloroglucinol Natural products CCC=CCC=CCC=CCC=CCCCCC(=O)C1=C(O)C=C(O)C=C1O JPYHHZQJCSQRJY-UHFFFAOYSA-N 0.000 claims description 3
- 238000005187 foaming Methods 0.000 claims description 3
- 239000001509 sodium citrate Substances 0.000 claims description 3
- MWNQXXOSWHCCOZ-UHFFFAOYSA-L sodium;oxido carbonate Chemical group [Na+].[O-]OC([O-])=O MWNQXXOSWHCCOZ-UHFFFAOYSA-L 0.000 claims description 3
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 claims 1
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- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 abstract 2
- SIKJAQJRHWYJAI-UHFFFAOYSA-N Indole Chemical compound C1=CC=C2NC=CC2=C1 SIKJAQJRHWYJAI-UHFFFAOYSA-N 0.000 abstract 2
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 abstract 1
- FFEARJCKVFRZRR-BYPYZUCNSA-N L-methionine Chemical compound CSCC[C@H](N)C(O)=O FFEARJCKVFRZRR-BYPYZUCNSA-N 0.000 abstract 1
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- 229940051880 analgesics and antipyretics pyrazolones Drugs 0.000 abstract 1
- 229960005070 ascorbic acid Drugs 0.000 abstract 1
- 235000010323 ascorbic acid Nutrition 0.000 abstract 1
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- 229930182817 methionine Natural products 0.000 abstract 1
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- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
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- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000020279 black tea Nutrition 0.000 description 1
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- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 1
- 239000001177 diphosphate Substances 0.000 description 1
- GYQBBRRVRKFJRG-UHFFFAOYSA-L disodium pyrophosphate Chemical compound [Na+].[Na+].OP([O-])(=O)OP(O)([O-])=O GYQBBRRVRKFJRG-UHFFFAOYSA-L 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 239000012154 double-distilled water Substances 0.000 description 1
- 239000005293 duran Substances 0.000 description 1
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- 235000013345 egg yolk Nutrition 0.000 description 1
- 210000002969 egg yolk Anatomy 0.000 description 1
- 235000013601 eggs Nutrition 0.000 description 1
- 229960004585 etidronic acid Drugs 0.000 description 1
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- 235000019197 fats Nutrition 0.000 description 1
- 235000021149 fatty food Nutrition 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
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- 239000000174 gluconic acid Substances 0.000 description 1
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- 235000013882 gravy Nutrition 0.000 description 1
- 239000008233 hard water Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 235000008960 ketchup Nutrition 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 235000013310 margarine Nutrition 0.000 description 1
- 239000003264 margarine Substances 0.000 description 1
- 108010003855 mesentericopeptidase Proteins 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 108010020132 microbial serine proteinases Proteins 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001254 oxidized starch Substances 0.000 description 1
- 235000013808 oxidized starch Nutrition 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- HWGNBUXHKFFFIH-UHFFFAOYSA-I pentasodium;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O HWGNBUXHKFFFIH-UHFFFAOYSA-I 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920001308 poly(aminoacid) Polymers 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 108010064470 polyaspartate Proteins 0.000 description 1
- 229920001748 polybutylene Polymers 0.000 description 1
- 229920005646 polycarboxylate Polymers 0.000 description 1
- 229920002643 polyglutamic acid Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 229920001592 potato starch Polymers 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000012048 reactive intermediate Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000010517 secondary reaction Methods 0.000 description 1
- OGFYIDCVDSATDC-UHFFFAOYSA-N silver silver Chemical compound [Ag].[Ag] OGFYIDCVDSATDC-UHFFFAOYSA-N 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002195 soluble material Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000000979 synthetic dye Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 108010075550 termamyl Proteins 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 150000004685 tetrahydrates Chemical class 0.000 description 1
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 1
- 230000000699 topical effect Effects 0.000 description 1
- 239000001226 triphosphate Substances 0.000 description 1
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K trisodium citrate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/38—Products with no well-defined composition, e.g. natural products
- C11D3/386—Preparations containing enzymes, e.g. protease or amylase
- C11D3/38609—Protease or amylase in solid compositions only
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0039—Coated compositions or coated components in the compositions, (micro)capsules
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0047—Detergents in the form of bars or tablets
- C11D17/0065—Solid detergents containing builders
- C11D17/0073—Tablets
- C11D17/0091—Dishwashing tablets
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/06—Powder; Flakes; Free-flowing mixtures; Sheets
- C11D17/065—High-density particulate detergent compositions
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/0042—Reducing agents
-
- 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
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/0073—Anticorrosion compositions
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/046—Salts
-
- 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
- C11D3/046—Salts
- C11D3/048—Nitrates or nitrites
-
- 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
- C11D3/12—Water-insoluble compounds
- C11D3/1213—Oxides or hydroxides, e.g. Al2O3, TiO2, CaO or Ca(OH)2
-
- 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
- C11D3/12—Water-insoluble compounds
- C11D3/122—Sulfur-containing, e.g. sulfates, sulfites or gypsum
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2003—Alcohols; Phenols
- C11D3/2065—Polyhydric alcohols
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2079—Monocarboxylic acids-salts thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2086—Hydroxy 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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2096—Heterocyclic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/28—Heterocyclic compounds containing nitrogen in the ring
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/30—Amines; Substituted amines ; Quaternized amines
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/33—Amino carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/34—Organic compounds containing sulfur
- C11D3/349—Organic compounds containing sulfur additionally containing nitrogen atoms, e.g. nitro, nitroso, amino, imino, nitrilo, nitrile groups containing compounds or their derivatives or thio urea
-
- 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
- C11D3/36—Organic compounds containing phosphorus
- C11D3/361—Phosphonates, phosphinates or phosphonites
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/39—Organic or inorganic per-compounds
- C11D3/3902—Organic or inorganic per-compounds combined with specific additives
- C11D3/3905—Bleach activators or bleach catalysts
- C11D3/3907—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2003—Alcohols; Phenols
- C11D3/2041—Dihydric alcohols
- C11D3/2058—Dihydric alcohols aromatic
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/34—Organic compounds containing sulfur
- C11D3/3472—Organic compounds containing sulfur additionally containing -COOH groups or derivatives thereof
Definitions
- active oxygen compounds such as Sodium perborate or sodium percarbonate were used, which to remove bleachable stains, such as Tea stains / tea deposits, coffee residues, vegetable dyes, lipstick residues and the like serve.
- organic redox-active substances especially those commonly used in oxidation dyes not previously described as a silver corrosion inhibitor Coupler and / or developer compounds the corrosion of silver in mechanical Prevent dishwashers effectively.
- the invention relates to the use of organic redox-active substances in dishwashing preparations as silver corrosion inhibitors, the organic redox-active substance being a coupler and / or developer compound, selected from the group of the diaminopyridines, aminohydroxypyridines, dihydroxypyridines, heterocyclic hydrazones, aminohydroxypyrimidines, dihydroxypyrimidines, tetraaminopyrimidines, tetraaminopyrimidines, tetraaminopyrimidines, and tetraaminopyrimidines , Diaminodihydroxypyrimidines, dihydroxynaphtalines, naphthols, hydroxyquinolines, aminoquinolines, the primary aromatic amines, the ortho, meta or para position a further free or substituted by C 1 -C 4 alkyl or C 2 -C 4 hydroxyalkyl groups hydroxy or have amino group, and the di- or trihydroxybenzenes.
- corrosion is in its broadest use in chemistry To interpret meaning, in particular "corrosion” is meant for everyone visually barely noticeable change in a metal surface, here silver stand, be it z. B. a selective discoloration, be it z. B. a large area Start up.
- Organic redox-active substances are those organic substances accessible to easily reversible oxidation and / or reduction are.
- Typical complexing agents such as e.g. B. EDTA or hydroxyethane diphosphonic acid and related compounds not under this definition.
- the developer used according to the invention to prevent silver corrosion and coupler compounds are common in oxidation colorants substances used from the above groups. Examples for such developer and coupler connections there are e.g. in "Venkataraman, The Chemistry of synthetic dyes, Vol. V, Academic Press New York / London, 1971, pages 478-495 ", as well as in the literature cited there.
- the developers are particularly suitable for preventing silver corrosion.
- coupler compounds selected from the group p-hydroxyphenylglycine, 2,4-diaminophenol, 5-chloro-2,3-pyridinediol, 1- (p-aminophenyl) morpholine, Hydroquinone, pyrocatechol, hydroxyhydroquinone, gallic acid, Phloroglucin, pyrogallol.
- the organic redox-active substances are preferably coated, i.e. completely with a waterproof, but at the cleaning temperatures easily soluble material coated for their premature decomposition or To prevent oxidation during storage.
- Preferred coating materials those according to known processes, such as the melt coating process according to Sandwik from the food industry, are paraffins, micro waxes, Waxes of natural origin such as carnauba wax, candella wax, Beeswax, higher melting alcohols such as hexadecanol, Soaps or fatty acids.
- the coating material is solid at room temperature applied to the material to be coated in the molten state, e.g.
- the melting point must be like this be chosen so that the coating material during subsequent use the silver corrosion inhibitor in the dishwasher easily dissolves or melts quickly.
- the melting point should therefore be for most applications ideally in the range between 45 ° C and 65 ° C and are preferably in the range from 50 ° C. to 60 ° C.
- organic redox-active compounds described above are particularly suitable However, substances to prevent silver corrosion when in lower alkaline Cleaners for machine cleaning of dishes included are. This is all the more surprising than these silver corrosion inhibitors in effect not by the presence of usually in low alkaline cleaners contain oxygen-based bleaches be affected.
- Another subject of the invention are therefore low-alkaline agents for machine cleaning of dishes, the 1% by weight solutions of which have a pH of 8 to 11.5, preferably 9 to 10.5, containing 15 to 60% by weight, preferably 30 to 50% by weight of a water-soluble builder component, 5 to 25% by weight, preferably 10 to 15% by weight of an oxygen-based bleach, 1 to 10% by weight, preferably 2 to 6% by weight of an organic Bleach activator, 0.1 to 5 wt .-%, preferably 0.5 to 2.5 wt .-% of an enzyme, in each case based on the total agent, and silver corrosion protection agent, wherein as a silver corrosion protection agent a coupler and / or developer compounds selected from the group of Diaminopyridines, aminohydroxypyridines, dihydroxypyridines, heterocyclic hydrazones, aminohydroxypyrimidines, dihydroxypyrimidines, tetraaminopyrimidines, triaminohydroxypyrimidines, diaminodihydroxypyrimidines,
- Preferred dish detergents contain coupler and / or developer compounds selected from the group p-hydroxyphenylglycine, 2,4-diaminophenol, 5-chloro-2,3-pyridine, 1- (p-aminophenyl) morpholine, hydroquinone, Catechol, hydroxyhydroquinone, gallic acid, phloroglucinol, pyrogallol as well as their mixtures.
- the organic redox-active substances are preferably in the inventive Average in a total amount of 0.05 to 6 wt .-%, preferably 0.2 to 2.5 wt .-%, based on the total agent.
- polymeric alkali phosphates which may be in the form of their alkaline neutral or acidic sodium or potassium salts.
- examples include: tetrasodium diphosphate, disodium dihydrogen diphosphate, pentasodium triphosphate, so-called sodium hexametaphosphate and the corresponding potassium salts or mixtures of sodium hexametaphosphate and the corresponding potassium salts or mixtures of sodium and potassium salts.
- the amounts of phosphate are in the range of up to about 30% by weight, based on the total agent; however, the agents according to the invention are preferably free of such phosphates.
- water-soluble builder components are e.g. B. organic polymers of native or synthetic origin, especially polycarboxylates, which act in particular in hard water systems as a co-builder.
- polyacrylic acids and copolymers of maleic anhydride and acrylic acid and the sodium salts of these polymer acids are suitable.
- Commercial products include Sokalan (R) CP 5 and PA 30 from BASF, Alcosperse (R) 175 or 177 from Alco, LMW (R) 45 N and SP02 N from Norsohaas.
- the native polymers include, for example, oxidized starch (e.g. German patent application P 42 28 786.3) and polyamino acids such as polyglutamic acid or polyaspartic acid, e.g. B. from the companies Cygnus and SRCHEM.
- hydroxycarboxylic acids such as B. mono-, dihydroxysuccinic acid, ⁇ -hydroxypropionic acid and gluconic acid.
- Preferred builder components are the salts of Citric acid, especially sodium citrate.
- sodium citrate come anhydrous Trisodium citrate or preferably trisodium citrate dihydrate in Consideration. Trisodium citrate dihydrate can be fine or coarse crystalline Powder can be used.
- Trisodium citrate dihydrate can be fine or coarse crystalline Powder can be used.
- Depending on the ultimately in the pH set according to the invention can also be adjusted to citrate corresponding acids are present.
- the oxygen-based bleach is therefore preferably a percarbonate salt, in particular Sodium percarbonate. Since active oxygen only at elevated temperatures of only its full effect unfolds to be activated in the Dishwasher so-called bleach activators used. As organic bleach activators serve e.g.
- PAG penentaacetyl glucose
- DADHT 1,5-diacetyl-2,4-dioxo-hexahydro-1,3,5-triazine
- ISA isatoic anhydride
- bleach stabilizers such as phosphonates, borates or Metaborates and metasilicates as well as magnesium salts such as magnesium sulfate be useful.
- the dishwashing detergents according to the invention contain enzymes such as proteases, amylases, lipases and cellulases, for example proteases such as BLAP (R) 140 from Henkel; Optimase (R) -M-440, Optimase (R) -M-330, Opticlean (R) -M-375, Opticlean (R) -M-250 from Solvay Enzymes; Maxacal (R) CX 450,000, Maxapem (R) from Ibis; Savinase (R) 4.0 T, 6.0 T, 8.0 T from Novo; Esperase (R) T from Ibis and amylases such as Termamyl (R) 60 T, 90 T from Novo; Amylase-LT (R) from Solvay Enzymes or Maxamyl (R) P 5000, CXT 5000 or CXT 2900 from Ibis; Lipases such as Lipo
- the agents according to the invention preferably additionally contain the alkali carriers contained in customary low-alkaline machine dishwashing agents, such as, for. B. alkali silicates, alkali carbonates and / or alkali hydrogen carbonates.
- Alkali silicates can be used in amounts of up to 30% by weight. %, based on the total, may be included.
- the use of the highly alkaline metasilicates as alkali carriers is preferably avoided.
- the alkali carrier system preferably used in the agents according to the invention is a mixture of essentially carbonate and hydrogen carbonate, preferably sodium carbonate and hydrogen carbonate, in an amount of up to 60% by weight, preferably 10 to 40% by weight, based on the total agent, is included.
- the ratio of carbonate and bicarbonate used varies; Usually, however, an excess of sodium hydrogen carbonate is used, so that the weight ratio between hydrogen carbonate and carbonate is generally 1: 1 to 15: 1.
- surfactants in particular low-foaming nonionic surfactants, can also be added to the agents according to the invention, which serve to better detach fatty food residues, as wetting agents, as granulating aids or as dispersing aids for better, homogeneous distribution of the aforementioned silver corrosion inhibitors in the washing liquor and on the silver surfaces.
- Their amount is then up to 5% by weight, preferably up to 2% by weight.
- Extremely low-foam connections are usually used. These preferably include C 12 -C 18 alkyl polyethylene glycol polypropylene glycol ethers, each containing up to 8 moles of ethylene oxide and propylene oxide units in the molecule.
- low-foam nonionic surfactants such as.
- B. C 12 -C 18 alkyl polyethylene glycol polybutylene glycol ether, each with up to 8 moles of ethylene oxide and butylene oxide units in the molecule, end-capped alkyl polyalkylene glycol mixed ethers and the foaming but ecologically attractive C 8 -C 14 alkyl polyglucosides with a degree of polymerization of about 1 - 4 ( e.g. APG (R) 225 and APG (R) 600 from Henkel) and / or C 12 -C 14 alkyl polyethylene glycols with 3 - 8 ethylene oxide units in the molecule.
- APG (R) 225 and APG (R) 600 from Henkel e.g. APG (R) 225 and APG (R) 600 from Henkel
- Bleached quality should be used, otherwise brown granules will result.
- the cleaning agents foam too much during use, them up to 6% by weight, preferably about 0.5 to 4% by weight of one foam-suppressing compound, preferably from the group of silicone oils, Mixtures of silicone oil and hydrophobicized silica, paraffin oil / Guerbet alcohols, Paraffins, hydrophobized silica, the bisstearic acid amides and other other well known commercially available defoamers be added.
- Other optional additives are e.g. B. Perfume oils.
- the dishwashing detergents according to the invention are preferably in powder form, granular or tablet-like preparations that are in themselves customary, for example by mixing, granulating, roller compacting and / or can be produced by spray drying.
- the procedure is preferably such that all constituents are mixed with one another in a mixer and the mixture by means of conventional tablet presses, for example eccentric presses or rotary presses, with pressures in the range from 200 ⁇ 10 5 Pa to 1 500 10 5 Pa pressed.
- conventional tablet presses for example eccentric presses or rotary presses
- pressures in the range from 200 ⁇ 10 5 Pa to 1 500 10 5 Pa pressed.
- a tablet produced in this way preferably has a weight of 15 g to 40 g, in particular 20 g to 30 g, with a diameter of 35 mm to 40 mm.
- machine dishwashing detergents in the form of non-dusting, storage-stable free-flowing powders and / or granules with high Bulk densities in the range from 750 to 1000 g / l are characterized by that in a first stage of the process with the builder components at least a proportion of liquid mixture components while increasing the Bulk density of this premix is mixed and subsequently - if desired after intermediate drying - the other components of the dishwasher detergent, including organic redox-active substances, combined with the premix obtained in this way.
- the intermediate drying must be carried out so that the Disintegration of sodium bicarbonate to sodium carbonate as low as possible (or at least as constant as possible).
- An additional through drying The resulting sodium carbonate portion should namely in the formulation of Granulate recipe are taken into account.
- Low drying temperatures not only counteract sodium bicarbonate decay, but also also increase the solubility of the granulated detergent in the Application. It is therefore advantageous when drying a supply air temperature that on the one hand as low as possible to avoid bicarbonate decay should be and which, on the other hand, must be as high as necessary to produce a product with good storage properties. Drying is preferred an inlet air temperature of approx. 80 ° C.
- the builder is usually mixed with at least a mixing process another component of the dishwashing detergent with the liquid components acted upon.
- a preliminary stage can be considered, in which the builder component in admixture with perborate with the liquid non-ionic surfactants and / or the solution of the fragrances and is intimately mixed.
- the remaining components added and worked through the entire mixture in the mixing device and homogenized.
- the use of additional amounts of liquid, in particular the use of additional water is here in the Usually not required.
- the resulting mixture of substances then lies as free-flowing, dust-free powder of the desired high bulk density about in the range of 750 to 1000 g / l.
- the pre-granules are then mixed with the missing components of the dishwashing detergent, including organic redox-active substances, to the finished product mixed.
- the mixing time is all shown here Cases both in the preliminary stage of the compacting mixture under influence of liquid components as in the final mix below with the other components in the range of a few minutes, for example in the range from 1 to 5 minutes.
- it can be used in the manufacture of fine Granules may be useful by powdering the surface of the formed Granules a further stabilization and leveling adjust. Small amounts of water glass powder are particularly suitable for this or powdered alkali carbonate.
- the funds to be used can be found both in household dishwashers as used in commercial dishwashers. The addition takes place by hand or using suitable dosing devices.
- the Application concentrations in the cleaning liquor are about 2 to 8 g / l, preferably 2 to 5 g / l.
- the rinse program is generally followed by some on the cleaning cycle following intermediate rinse cycles with clear water and a rinse cycle with supplemented with a common rinse aid and finished. After drying you don't just get a completely clean and hygienic one flawless crockery, but above all bright silver silver cutlery.
- Silver spoons (type WMF, hotel cutlery, form Berlin) were cleaned with a silver cleaner, degreased with petrol and dried. Three spoons each were then placed in the cutlery basket of a Bosch S 712 household dishwasher (HGSM). The cleaning program (65 ° C, 16 ° dH) has now been started and 50 g of soiling (1) and 30 g of the detergent have been dosed directly into the machine. After the rinsing and drying process had ended, the HGSM were opened for 10 minutes, the machine was closed again and rinsed again in the same way. After the 10th rinse, the spoons were removed and evaluated.
- HGSM Bosch S 712 household dishwasher
- 16 l of cold city water (16 ° d) are briefly heated to boiling in a water treatment boiler.
- 96 g of black tea are drawn in the nylon net with the lid closed for 5 minutes and the tea is transferred to a diving apparatus with heating and agitator.
- 60 teacups are dipped into the prepared tea brew 25 times at one-minute intervals at 70 ° C. The cups are then removed and placed on a tray with the opening facing down to dry.
- the silver spoons were consistently rated 0 to 1, i.e. "no to very weak Tarnish ", rated. Identical compositions, however each without silver corrosion inhibitor A - D caused on silver spoons Yellow to violet colors (rating: 2 to 4).
- Electrolytes and electrodes are Electrolytes and electrodes:
- the experiments were carried out in a Duran glass cell.
- the counter electrode consisted of a gold plate (99.99%) with an area of 1 cm 2 .
- a Hg / Hg0 / 0.1 m NaOH electrode was chosen as the reference electrode due to the alkaline electrolyte solutions, which was connected to the electrolytes via a Haber-Luggin capillary.
- the measurements were carried out with 5 g / l cleaner in tap water of 16 ° d and a salt load of approx. 600 mg (dry residue).
- the lower alkaline solution was used first Base product (see above) dissolved and the solution heated to 65 ° C. Directly Before the measurement, the bleach and the bleach activator and / or the silver anticorrosive agent is added. Then the electrochemical measurement. During the electrochemical experiments the electrolyte solutions are heated to 65 ° C and flushed with air.
- the electrode potential was used to record the current-voltage curves from - 0.62, V based on the standard hydrogen electrode (SHE), increased at a constant speed. After a total increase The potential then became 1.1 V at the same speed degraded.
- SHE standard hydrogen electrode
- a standard potentiostat consisting of positive feedback amplifier was used for this, Differential amplifier, adder and impedance converter, as well a function generator (Prodis 16 from Intelligent Controls CLZ GmbH).
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Description
0 = kein Anlaufen, 1 = ganz/leichte Gelbfärbung, 2 = stärkere Gelbfärbung, 3 = ganzflächige Gold- bis Braunfärbung, 4 = Violett- bis Schwarzfärbung der Löffel; Werte im oberen linken Teil der Tabellen 1 bis 3.
| (1) Zusammensetzung der Anschmutzung: | |
| Ketchup: | 25 g |
| Senf (extra scharf) | 25 g |
| Bratensoße: | 25 g |
| Kartoffelstärke: | 5 g |
| Benzoesäure: | 1 g |
| Eigelb: | 3 Stück |
| Milch: | 1/2 l |
| Margarine: | 92 g |
| Stadtwasser: | 608 ml |
60 Teetassen werden 25 mal im Ein-Minuten-Takt bei 70°C in den vorbereiteten Teesud getaucht. Anschließend werden die Tassen abgehängt und mit der Öffnung nach unten zum Trocknen auf ein Blech gelegt.
- 56,0 %
- Trinatriumcitrat-dihydrat
- 36,1 %
- Natriumhydrogencarbonat
- 6,1 %
- Natriumcarbonat, wasserfrei
- 1,8 %
- Gemisch nichtionischer Tenside aus APG 225 (C8-C10-Alkyloligoglucosid) und Dehydol(R) LS2 (C12-C14-Fettalkohol-2EO-ethoxylat) (1:1)
- 81 - 86 Gew.-%
- Grundprodukt
- 12 Gew.-%
- Natriumpercarbonat
- 0 - 10 Gew.-%
- TAED
- 0 - 3 Gew.-%
- Brenzcatechin, Gallussäure oder Hydrochinon
- 1 Gew.-%
- Protease
- 1 Gew.-%
- Amylase
| Zusammensetzung Reiniger | Lage Nulldurchgang E (mV) (SHE) | Steigung im Nulldurchgang di/dE (mA/V) |
| Grundprodukt (86 %) + 12 % Percarbonat + 2 % Hydrochinon | 319 | 0,5 |
Claims (13)
- Verwendung von organischen redoxaktiven Substanzen in Geschirrreinigerzubereitungen als Silberkorrosionsschutmittel,
dadurch gekennzeichnet, daß die organische redoxaktive Substanz eine Kuppler- und/oder Entwicklerverbindung ist ausgewählt aus der Gruppe der Diaminopyridine, Aminohydroxypyridine, Dihydroxypyridine, heterocyclischen Hydrazone, Aminohydroxypyrimidine, Dihydroxypyrimidine, Tetraaminopyrimidine, Triaminohydroxypyrimidine, Diaminodihydroxypyrimidine, Dihydroxynaphtaline, Naphtole, Hydroxychinoline, Aminochinoline, der primären aromatischen Amine, die in ortho-, meta- oder para-Position eine weitere freie oder mit C1-C4-Alkyl- oder C2-C4-Hydroxyalkylgruppen substituierte Hydroxy- oder Aminogruppe haben und der Di- oder Trihydroxybenzole. - Verwendung nach Anspruch 1, dadurch gekennzeichnet, daß die Kuppler- bzw. Entwicklerverbindung ausgewählt ist aus der Gruppe p-Hydroxyphenylglycin, 2,4-Diaminophenol, 5-Chlor-2,3-pyridindiol, 1-(p-Aminophenyl)-morpholin, Hydrochinon, Brenzcatechin, Hydroxyhydrochinon, Gallussäure, Phloroglucin, Pyrogallol.
- Niederalkalisches Mittel zum maschinellen Reinigen von Geschirr, dessen 1 Gew.-%ige Lösung einen pH-Wert von 8 bis 11,5, vorzugsweise 9 bis 10,5 aufweist, enthaltend 15 bis 60 Gew.-%, vorzugsweise 30 - 50 Gew.-% einer wasserlöslichen Builderkomponente, 5 bis 25 Gew.-%, vorzugsweise 1D - 15 Gew.-% eines Bleichmittels auf Sauerstoffbasis, 1 bis 10 Gew.-%, vorzugsweise 2 bis 6 Gew.-% eines organischen Bleichmittelaktivators, 0,1 bis 5 Gew.-%, vorzugsweise 0,5 bis 2,5 Gew.-% eines Enzyms, jeweils bezogen auf das gesamte Mittel, und Silberkorrosionsschutzmittel, dadurch gekennzeichnet, daß als Silberkorrosionsschutzmittel eine Kuppler- und/oder Entwicklerverbindung ausgewählt aus der Gruppe der Diaminopyridine, Aminohydroxypyridine, Dihydroxypyridine, heterocyclischen Hydrazone, Aminohydroxypyrimidine, Dihydroxypyrimidine, Tetraaminopyrimidine, Triaminohydroxypyrimidine, Diaminodihydroxypyrimidine, Dihydroxynaphtaline, Naphtole, Hydroxychinoline, Aminochinoline, der primären aromatischen Amine, die in ortho-, meta- oder para-Position eine weitere freie oder mit C1-C4-Alkyl- oder C2-C4-Hydroxalkylgruppen substituierte Hydroxy- oder Aminogruppen haben, und der Di- oder Trihydroxybenzole enthalten ist.
- Mittel nach Anspruch 3, dadurch gekennzeichnet, daß die Kuppler- bzw. Entwicklerverbindung ausgewählt ist aus der Gruppe p-Hydroxyphenylglycin, 2,4-Diaminophenol, 5-Chlor-2,3-pyridindiol, 1-(p-Aminophenyl)morpholin, Hydrochinon, Brenzcatechin, Hydroxyhydrochinon, Gallussäure, Phloroglucin, Pyrogallol.
- Mittel nach Anspruch 3 bis 4, dadurch gekennzeichnet, daß die organischen redoxaktiven Substanzen in einer Menge von 0,05 bis 6 Gew.-%, vorzugsweise 02, bis 2,5 Gew.-%, bezogen auf das gesamte Mittel, enthalten sind.
- Mittel nach Anspruch 3 bis 5, dadurch gekennzeichnet, daß die wasserlösliche Builderkomponente ein Salz der Citronensäure, vorzugsweise Natriumcitrat, ist.
- Mittel nach Anspruch 3 bis 6, dadurch gekennzeichnet, daß das Bleichmittel auf Sauerstoffbasis ein Percarbonat-Salz, vorzugsweise Natriumpercarbonat, ist.
- Mittel nach Anspruch 3 bis 7, dadurch gekennzeichnet, daß der organische Bleichmittelaktivator N,N,N'N'-Tetraacetylethylendiamin (TAED) ist.
- Mittel nach Anspruch 3 bis 8, dadurch gekennzeichnet, daß das Enzym eine Amylase und/oder eine Protease ist.
- Mittel nach Anspruch 3 bis 9, dadurch gekennzeichnet, daß es zusätzlich bis zu 60 Gew.-%, vorzugsweise 10 bis 40 Gew.-%, bezogen auf das gesamte Mittel, eines Alkaliträgersystems bestehend im wesentlichen aus Carbonat und Hydrogencarbonat, vorzugsweise Natriumcarbonat und Natriumhydrogencarbonat, enthält.
- Mittel nach Anspruch 3 bis 10, dadurch gekennzeichnet, daß es zusätzlich bis zu 5 Gew.-%, vorzugsweise bis zu 2 Gew.-% bezogen auf das gesamte Mittel, Tenside, vorzugsweise schwach schäumende nichtionische Tenside, enthält.
- Mittel nach Anspruch 3 bis 11, dadurch gekennzeichnet, daß es in Tablettenform vorliegt und durch Vermischen aller seiner Bestandteile in einem Mischer und Verpressen des Gemisches mittels einer Tablettenpresse bei Preßdrucken von 2 · 107 Pa bis 1,5 · 108 Pa erhältlich ist.
- Mittel nach Anspruch 3 bis 12, dadurch gekennzeichnet, daß es als Pulver oder Granulat vorliegt und eine Schüttdichte von 750 g/l bis 1000 g/l aufweist.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4315397 | 1993-05-08 | ||
| DE19934315397 DE4315397A1 (de) | 1993-05-08 | 1993-05-08 | Reinigungsmittel mit Verhinderung des Anlaufens von Tafelsilber in Geschirrspülmaschinen |
| DE4338724 | 1993-11-12 | ||
| DE19934338724 DE4338724A1 (de) | 1993-11-12 | 1993-11-12 | Silberkorrosionsschutzmittel II |
| PCT/EP1994/001387 WO1994026860A1 (de) | 1993-05-08 | 1994-05-02 | Silberkorrosionsschutzmittel ii |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0697036A1 EP0697036A1 (de) | 1996-02-21 |
| EP0697036B1 true EP0697036B1 (de) | 1999-07-28 |
Family
ID=25925738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94917579A Expired - Lifetime EP0697036B1 (de) | 1993-05-08 | 1994-05-02 | Silberkorrosionsschutzmittel ii |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP0697036B1 (de) |
| JP (1) | JPH08509778A (de) |
| AT (1) | ATE182615T1 (de) |
| CA (1) | CA2162459A1 (de) |
| CZ (1) | CZ287850B6 (de) |
| DE (1) | DE59408548D1 (de) |
| DK (1) | DK0697036T3 (de) |
| ES (1) | ES2134944T3 (de) |
| HU (2) | HU218008B (de) |
| PL (1) | PL177935B1 (de) |
| WO (1) | WO1994026860A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025174581A1 (en) * | 2024-02-15 | 2025-08-21 | Rohm And Haas Company | Automatic dishwashing composition with gallic acid (salt) |
| WO2025178722A1 (en) * | 2024-02-20 | 2025-08-28 | Rohm And Haas Company | Automatic dishwashing composition with 1,2,4-trihydroxybenzene (salt) |
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|---|---|---|---|---|
| US5480576A (en) * | 1993-10-14 | 1996-01-02 | Lever Brothers Company, Division Of Conopco, Inc. | 1,3-N azole containing detergent compositions |
| US5468410A (en) * | 1993-10-14 | 1995-11-21 | Angevaare; Petrus A. | Purine class compounds in detergent compositions |
| DE4344215A1 (de) * | 1993-12-23 | 1995-06-29 | Cognis Bio Umwelt | Silberkorrosionsschutzmittelhaltige Enzymzubereitung |
| DE19501645A1 (de) * | 1995-01-20 | 1996-07-25 | Henkel Kgaa | Silberkorrosionsschutzmittel |
| DE19518695A1 (de) * | 1995-05-22 | 1996-11-28 | Henkel Kgaa | Redoxaktive Substanzen enthaltende saure Granulate |
| DE19518693A1 (de) * | 1995-05-22 | 1996-11-28 | Henkel Kgaa | Maschinelle Geschirrspülmittel mit Silberkorrosionsschutzmittel |
| DE59606257D1 (de) | 1995-07-13 | 2001-02-01 | Benckiser Nv | Geschirrwaschmaschinenspülmittel in form einer tablette |
| DE19631787C2 (de) * | 1996-08-07 | 2000-06-29 | Henkel Kgaa | Benzotriazolhaltige, granulare Komponente für den Einsatz in Maschinengeschirrspülmitteln (MGSM) und Verfahren zu dessen Herstellung |
| DE19817964A1 (de) * | 1998-04-22 | 1999-10-28 | Henkel Kgaa | Umhüllte Reinigungsmittelkomponente |
| DE19946844A1 (de) * | 1999-09-30 | 2001-04-05 | Henkel Kgaa | Maschinelles Silberreinigungsmittel |
| EP1740685A1 (de) * | 2004-04-28 | 2007-01-10 | The Procter and Gamble Company | Antioidanzzusammensetzungen |
| DE102004039921A1 (de) * | 2004-08-18 | 2006-03-02 | Henkel Kgaa | Klarspülhaltige Wasch- und Reinigungsmittel mit schwefelhaltigen Aminosäuren |
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| GB0611206D0 (en) | 2006-06-07 | 2006-07-19 | Reckitt Benckiser Nv | Detergent composition |
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| DE102007041204B3 (de) * | 2007-08-31 | 2009-04-30 | Clariant International Limited | Verwendung von Zusammensetzung als Korrosionsinhibitoren enthaltend anionische Tenside und die Zusammensetzungen |
| DE102007041215B3 (de) * | 2007-08-31 | 2009-04-30 | Clariant International Limited | Verwendung von Zusammensetzungen als Korrosionsinhibitoren enthaltend nichtionische Tenside und die Zusammensetzungen |
| GB0718944D0 (en) | 2007-09-28 | 2007-11-07 | Reckitt Benckiser Nv | Detergent composition |
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| EP2100948A1 (de) | 2008-03-14 | 2009-09-16 | The Procter and Gamble Company | Waschmittelzusammensetzung für Spülmaschinen |
| EP2100947A1 (de) | 2008-03-14 | 2009-09-16 | The Procter and Gamble Company | Waschmittelzusammensetzung für Spülmaschinen |
| EP2166092A1 (de) | 2008-09-18 | 2010-03-24 | The Procter and Gamble Company | Reinigungsmittelzusammensetzung |
| GB0818804D0 (en) | 2008-10-14 | 2008-11-19 | Reckitt Benckiser Nv | Compositions |
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| EP2362896A2 (de) | 2008-11-11 | 2011-09-07 | Danisco US Inc. | Bacillus subtilisin mit mindestens einer kombinierbaren mutation |
| AR074106A1 (es) | 2008-11-11 | 2010-12-22 | Danisco Us Inc | Composiciones y metodos que comprenden una variante de subtilisina |
| BRPI0920925A2 (pt) | 2008-11-11 | 2015-08-18 | Danisco Us Inc | Composições e métodos compreendendo uma variante de subtilisina |
| EP2216393B1 (de) | 2009-02-09 | 2024-04-24 | The Procter & Gamble Company | Reinigungsmittelzusammensetzung |
| GB0906281D0 (en) | 2009-04-09 | 2009-05-20 | Reckitt Benckiser Nv | Detergent compositions |
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| EP0346112A2 (de) * | 1988-06-09 | 1989-12-13 | The Procter & Gamble Company | Flüssige Zusammensetzungen für die automatische Geschirreinigung mit einem Silberschutz |
| WO1994007981A1 (de) * | 1992-09-25 | 1994-04-14 | Henkel Kommanditgesellschaft Auf Aktien | Schwachalkalische geschirreinigungsmittel |
| WO1994016045A1 (en) * | 1993-01-18 | 1994-07-21 | Unilever N.V. | Machine dishwashing composition containing a corrosion inhibitor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025174581A1 (en) * | 2024-02-15 | 2025-08-21 | Rohm And Haas Company | Automatic dishwashing composition with gallic acid (salt) |
| WO2025178722A1 (en) * | 2024-02-20 | 2025-08-28 | Rohm And Haas Company | Automatic dishwashing composition with 1,2,4-trihydroxybenzene (salt) |
Also Published As
| Publication number | Publication date |
|---|---|
| HU218021B (hu) | 2000-05-28 |
| HUT73025A (en) | 1996-06-28 |
| HUT73028A (en) | 1996-06-28 |
| JPH08509778A (ja) | 1996-10-15 |
| ES2134944T3 (es) | 1999-10-16 |
| HU9503200D0 (en) | 1996-01-29 |
| PL177935B1 (pl) | 2000-01-31 |
| EP0697036A1 (de) | 1996-02-21 |
| HU9503201D0 (en) | 1995-12-28 |
| ATE182615T1 (de) | 1999-08-15 |
| WO1994026860A1 (de) | 1994-11-24 |
| HU218008B (hu) | 2000-05-28 |
| CA2162459A1 (en) | 1994-11-24 |
| DE59408548D1 (de) | 1999-09-02 |
| PL311624A1 (en) | 1996-03-04 |
| DK0697036T3 (da) | 2000-01-31 |
| CZ262595A3 (en) | 1996-02-14 |
| CZ287850B6 (en) | 2001-02-14 |
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