EP0550077A1 - Körnige Bleichmittelzusammensetzung für Wäsche - Google Patents
Körnige Bleichmittelzusammensetzung für Wäsche Download PDFInfo
- Publication number
- EP0550077A1 EP0550077A1 EP92200005A EP92200005A EP0550077A1 EP 0550077 A1 EP0550077 A1 EP 0550077A1 EP 92200005 A EP92200005 A EP 92200005A EP 92200005 A EP92200005 A EP 92200005A EP 0550077 A1 EP0550077 A1 EP 0550077A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- percarbonate
- compositions
- sodium
- bleaching composition
- weight
- 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.)
- Ceased
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 66
- 238000004061 bleaching Methods 0.000 title claims abstract description 22
- MWNQXXOSWHCCOZ-UHFFFAOYSA-L sodium;oxido carbonate Chemical compound [Na+].[O-]OC([O-])=O MWNQXXOSWHCCOZ-UHFFFAOYSA-L 0.000 claims abstract description 25
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract description 12
- -1 alkali metal salt Chemical class 0.000 claims abstract description 11
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical group OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 24
- 239000007844 bleaching agent Substances 0.000 claims description 12
- 239000002535 acidifier Substances 0.000 claims description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical group 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 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- 229960004543 anhydrous citric acid Drugs 0.000 claims description 4
- 239000001257 hydrogen Chemical group 0.000 claims description 3
- 229910052739 hydrogen Chemical group 0.000 claims description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 3
- VTIIJXUACCWYHX-UHFFFAOYSA-L disodium;carboxylatooxy carbonate Chemical compound [Na+].[Na+].[O-]C(=O)OOC([O-])=O VTIIJXUACCWYHX-UHFFFAOYSA-L 0.000 description 10
- 229940045872 sodium percarbonate Drugs 0.000 description 10
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 6
- 229960004106 citric acid Drugs 0.000 description 6
- 239000003599 detergent Substances 0.000 description 6
- 239000004615 ingredient Substances 0.000 description 6
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 5
- BGRWYDHXPHLNKA-UHFFFAOYSA-N Tetraacetylethylenediamine Chemical compound CC(=O)N(C(C)=O)CCN(C(C)=O)C(C)=O BGRWYDHXPHLNKA-UHFFFAOYSA-N 0.000 description 5
- 229910001385 heavy metal Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 101100175606 Oryza sativa subsp. japonica AGPL2 gene Proteins 0.000 description 3
- 101150070874 SHR1 gene Proteins 0.000 description 3
- 101150009276 SHR2 gene Proteins 0.000 description 3
- 101100095761 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) SHR3 gene Proteins 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 150000004760 silicates Chemical class 0.000 description 3
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 3
- 235000017557 sodium bicarbonate Nutrition 0.000 description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 description 3
- 235000011152 sodium sulphate Nutrition 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- DBVJJBKOTRCVKF-UHFFFAOYSA-N Etidronic acid Chemical compound OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- 238000007580 dry-mixing Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000003352 sequestering agent Substances 0.000 description 2
- WEAPVABOECTMGR-UHFFFAOYSA-N triethyl 2-acetyloxypropane-1,2,3-tricarboxylate Chemical compound CCOC(=O)CC(C(=O)OCC)(OC(C)=O)CC(=O)OCC WEAPVABOECTMGR-UHFFFAOYSA-N 0.000 description 2
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 description 1
- LTALJGSZILUUQA-UHFFFAOYSA-N 2-nonanoyloxybenzenesulfonic acid Chemical compound CCCCCCCCC(=O)OC1=CC=CC=C1S(O)(=O)=O LTALJGSZILUUQA-UHFFFAOYSA-N 0.000 description 1
- KCAZSAYYICOMMG-UHFFFAOYSA-N 6-hydroperoxy-6-oxohexanoic acid Chemical compound OOC(=O)CCCCC(O)=O KCAZSAYYICOMMG-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- XFTRTWQBIOMVPK-YFKPBYRVSA-N Citramalic acid Natural products OC(=O)[C@](O)(C)CC(O)=O XFTRTWQBIOMVPK-YFKPBYRVSA-N 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001638 boron Chemical class 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- XFTRTWQBIOMVPK-UHFFFAOYSA-N citramalic acid Chemical compound OC(=O)C(O)(C)CC(O)=O XFTRTWQBIOMVPK-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 229910001431 copper ion Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 229910001437 manganese ion Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000004682 monohydrates Chemical class 0.000 description 1
- 229910021527 natrosilite Inorganic materials 0.000 description 1
- FJDUDHYHRVPMJZ-UHFFFAOYSA-N nonan-1-amine Chemical compound CCCCCCCCCN FJDUDHYHRVPMJZ-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- PTMHPRAIXMAOOB-UHFFFAOYSA-L phosphoramidate Chemical compound NP([O-])([O-])=O PTMHPRAIXMAOOB-UHFFFAOYSA-L 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 229960001922 sodium perborate Drugs 0.000 description 1
- 229910000031 sodium sesquicarbonate Inorganic materials 0.000 description 1
- 235000018341 sodium sesquicarbonate Nutrition 0.000 description 1
- 235000019351 sodium silicates 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
- 239000002689 soil Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 150000004685 tetrahydrates Chemical class 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- WCTAGTRAWPDFQO-UHFFFAOYSA-K trisodium;hydrogen carbonate;carbonate Chemical compound [Na+].[Na+].[Na+].OC([O-])=O.[O-]C([O-])=O WCTAGTRAWPDFQO-UHFFFAOYSA-K 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000001993 wax 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
- C11D3/395—Bleaching 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
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/12—Water-insoluble compounds
- C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
- C11D3/1246—Silicates, e.g. diatomaceous earth
- C11D3/1253—Layer silicates, e.g. talcum, kaolin, clay, bentonite, smectite, montmorillonite, hectorite or attapulgite
- C11D3/1273—Crystalline layered silicates of type NaMeSixO2x+1YH2O
-
- 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
- C11D3/39—Organic or inorganic per-compounds
- C11D3/3942—Inorganic per-compounds
Definitions
- the present invention relates to bleaching compositions for laundry.
- Granular laundry bleaching compositions are described which comprise percarbonate as the bleaching specie, said compositions being stable upon storage.
- the inorganic perhydrate bleach most widely used in the context of laundry bleaching is sodium perborate in the form of either the monohydrate or tetrahydrate.
- concerns about the impact of boron salts on the environment have led to an increasing interest in other perhydrate salts, of which sodium percarbonate is the most readily available.
- Percarbonate salts particularly sodium percarbonate
- detergent compositions containing sodium percarbonate are known in the art.
- Percarbonate salts, particularly sodium percarbonate are attractive perhydrates for use in detergent compositions because they dissolve readily in water, are weight efficient and, after giving up their available oxygen, provide a useful source of carbonate ions for detergency purposes.
- percarbonate salts have been restricted hitherto by the relative instability of the bleach both as is and in use .
- Sodium percarbonate loses its available oxygen at a significant rate in the presence of ions of heavy metals such as iron, copper and manganese and also in the presence of moisture, these effects being accelerated at temperatures in excess of about 30°C.
- Moisture and heavy metal ions are unavoidable components of conventional granular laundry treatment compositions. Also percarbonate decomposition due to moisture becomes more of an issue during storage as laundry treatment products are often stored in humid environments when the product picks up moisture. This has resulted in marginally acceptable percarbonate bleach stability under Northern European summer conditions, where the average maximum temperature over the hottest months is from 21°C to 25°C, and unacceptable stability under temperatures higher than this. Such conditions are found in the Middle East and Southern Asia and also in Southern Europe where average maximum temperatures are in the 27°C to 33°C range for the hottest summer month.
- composition comprising an alkali metal salt of percarbonate together with a crystalline layered silicate or mixtures thereof.
- Granular bleaching compositions comprising percarbonate have been described for instance in FR 2,385,837, US 4,428,914 and GB 1,553,505.
- Crystalline layered silicate and their methods of preparation have been described for instance in EP-A-164 514, DE-A-34 17 649 and DE-A-37 42 043 and their application to the field of laundry treatment has been described in applicant's copending British applications GB 90 21 761.3, GB 90 18157.9 and GB 91 08639.7.
- compositions according to the present invention also allow adequate control of the pH in the bleaching liquor, giving appropriate balance between bleaching performance and fabric safety.
- compositions according to the present invention are granular bleaching compositions comprising more than 20% and up to 80% by weight of the total composition of an alkali metal salt of percarbonate bleach and from 5% to 80% by weight of the total composition of a crystalline layered silicate of formula NaMSi x O 2x+1 .yH2O wherein M is sodium or hydrogen, x is a number of from 1.9 to 4 and y is a number of from 0 to 20, or mixtures thereof.
- Preferred compositions herein further comprise an anhydrous acidifying agent, preferably citric acid.
- the compositions according to the present invention comprise an alkali metal salt of percarbonate, preferably sodium percarbonate.
- Sodium percarbonate is available commercially as a crystalline solid. Most commercially available material includes a low level of a heavy metal sequestrant such as EDTA, 1-hydroxyethylidene 1, 1-diphosphonic acid (HEDP) or an amino-phosphonate, that is incorporated during the manufacturing process.
- EDTA 1-hydroxyethylidene 1, 1-diphosphonic acid
- HEDP 1-diphosphonic acid
- the percarbonate can be incorporated into detergent compositions without additional protection.
- the percarbonate Whilst heavy metals present in the sodium carbonate used to manufacture the percarbonate can be controlled by the inclusion of sequestrants in the reaction mixture, it is preferred that the percarbonate be protected from heavy metals present as impurities in other ingredients of the product. It has been found that the total level of Iron, Copper and Manganese ions in the product should not exceed 25 ppm and preferably should be less than 20 ppm in order to avoid an unacceptably adverse effect on percarbonate stability.
- compositions according to the present invention comprise more than 20% by weight of the total composition of percarbonate, up to 80% by weight of the total composition, preferably from 40% to 50%.
- the second essential component of the invention is a crystalline layered silicate.
- the crystalline layered silicates suitable for use herein are of the granular formula NaMSi x O 2x+1 .yH2O wherein M is sodium or hydrogen, x is a number from 1.9 to 4 and y is a number from 0 to 20, or mixtures thereof.
- Crystalline layered sodium silicates of this type are disclosed in EP-A-164 514 and methods for their preparation are disclosed in DE-A-34 17 649 and DE-A-37 42 043.
- x in the general formula above has a value of 2, 3 or 4 and is preferably 2.
- M is sodium and y is 0 and preferred examples of this formula comprise the ⁇ , ⁇ , ⁇ and ⁇ forms of Na2Si2O5
- These materials are available from Hoechst AG FRG as respectively NaSKS-5, NaSKS-7, NaSKS-11 and NaSKS-6.
- the most preferred material is ⁇ - Na2Si2O5 , NaSKS-6.
- Crystalline layered silicates are incorporated either as dry mixed solids, or as solid components of agglomerates with other components.
- compositions according to the present invention comprise from 5% to 80% by weight of the total composition of said crystalline layered silicates or mixtures thereof, preferably from 15% to 25%.
- compositions according to the present invention further comprise an anhydrous acidifying agent or mixtures thereof.
- the purpose of said acidifying agent is to control the alkalinity generated by the percarbonate in the bleaching liquor. Said agent need to be incorporated in the product in an anhydrous form, and to have a good stability in oxidizing environment.
- Suitable anhydrous acidifying agents for use herein are carboxylic acids such as citric acid, succinic acid, adipic acid, glutaric acid, 3 chetoglutaric acid, citramalic acid, tartaric acid and maleic acid.
- Other suitable acidifying agents include sodium bicarbonate, sodium sesquicarbonate and silicic acid. Highly preferred for use herein is citric acid.
- citric acid is commercially available in anhydrous form, it additionally acts as a builder and a chelant, and it is biodegradable.
- the compositions according to the present invention comprise from up to 15% by weight of the total composition of anhydrous citric acid, preferably from 2% to 8%, most preferably about 5%.
- compositions in accordance with the invention can also comprise optional ingredients such as optical brighteners, anti dusting agents such as olefines and waxes, enzymes, chelants, dispersants, surfactants, soil release agents, photoactivated bleaches such as Zn phthalocyanine sulphonate, dyes, pigments and perfumes are examples of such optional ingredients and can be added in varying amounts as desired.
- optional ingredients such as optical brighteners, anti dusting agents such as olefines and waxes, enzymes, chelants, dispersants, surfactants, soil release agents, photoactivated bleaches such as Zn phthalocyanine sulphonate, dyes, pigments and perfumes are examples of such optional ingredients and can be added in varying amounts as desired.
- Optional but highly preferred ingredients are peroxy carboxylic acids bleach or precursors thereof, commonly referred to as bleach activators, which are preferably added in a prilled or agglomerated form.
- bleach activators peroxy carboxylic acids bleach or precursors thereof, commonly referred to as bleach activators, which are preferably added in a prilled or agglomerated form.
- 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.
- TAED tetracetyl ethylene diamine
- NOBS n-nonanoyloxybenzenesulphonate
- ATC acetyl triethyl citrate
- compositions according to the present invention naturally comprise inorganic filler salts such as alkali metal carbonates bicarbonates and sulphates.
- inorganic filler salts such as alkali metal carbonates bicarbonates and sulphates.
- Such fillers for instance sodium bicarbonate, may also act as acidifying agent as described herein above. Accordingly, sodium percarbonate is a preferred filler material for use herein.
- compositions according to the present invention can be made by a variety of methods well known in the art, including dry-mixing, spray drying, agglomeration and granulation and combinations thereof.
- compositions according to the present invention can be prepared with different bulk densities, from conventional granular products to so-called “concentrated” products (i.e. with a bulk density above 600g/l).
- compositions 1 2 3 4 5 6 Sodium percarbonate 40.0 35.0 54.0 55.0 46.0 47.0 TAED 8.7 7.6 11.7 - 9.5 - Silicate layered SKS-6 25.0 30.0 20.0 10.0 18.0 20.0 Anhydrous citric acid 10.0 12.0 12.0 5.0 5.0 5.0 Sodium sulphate 15.3 14.3 1.0 20.0 0.5 15.0 Sodium bicarbonate - - - 5.0 18.0 - NOBS - - - - - 10.3 minors up to 100%
- compositions were made by mixing the listed ingredients in the listed proportions.
- the self heating rates of the products were monitored as follows.
- the product is made and put in a bottle.
- the bottle is then put in an oven which is heated up to 70°c.
- a probe in the product allows to monitor the temperature of the product.
- the bottle is covered and the system is isolated in an adiabatic/thermo bell which maintains the temperature of the oven constant at 70°c as above. This places the product in adiabatic conditions and from thereon, the temperature of the product is monitored.
- the temperature increase thus measured is due to the self-heating of the product (runaway reaction).
- SHR1 is the average temperature increase measured during the first two hours of adiabatic conditions
- SHR2 is the average temperature increase measured during the three following hours
- SHR3 is the average temperature increase measured beyond 5 hours.
- the table below lists the results obtained for various compositions, with and without crystalline layered silicate. In some cases the runaway reaction was out of control and experiments had to be interrupted for safety reasons. Such experiments are marked "ooc" (out of control).
- compositions 7-12 show good thermal stability, and no temperature increase is reported after 5 hours storage and beyond. In the absence of crystalline layered silicate i.e. in compositions 7a-12a, self-heating rates measured were so high that experiments had to be stopped for safety purposes.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Detergent Compositions (AREA)
Priority Applications (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP92200005A EP0550077A1 (de) | 1992-01-03 | 1992-01-03 | Körnige Bleichmittelzusammensetzung für Wäsche |
| RU94035995/04A RU94035995A (ru) | 1992-01-03 | 1992-12-24 | Гранулированная отбеливающая композиция |
| BR9207019A BR9207019A (pt) | 1992-01-03 | 1992-12-24 | Alvejante para lavagem de percarbonato granular contendo estabilizador de silicato em camadas |
| KR1019940702293A KR940703911A (ko) | 1992-01-03 | 1992-12-24 | 층상 규산염 안정화제를 함유하는 입상 과탄산염 세탁표백제(Granular percarbonate laundry bleach containing layered silicate stabilizer) |
| JP5511910A JPH07502770A (ja) | 1992-01-03 | 1992-12-24 | 層状シリケート安定剤を含有する粒状ペルカーボネート洗濯漂白剤 |
| CA002126847A CA2126847A1 (en) | 1992-01-03 | 1992-12-24 | Granular percarbonate laundry bleach containing layered silicate stabilizer |
| PCT/US1992/011222 WO1993012843A1 (en) | 1992-01-03 | 1992-12-24 | Granular percarbonate laundry bleach containing layered silicate stabilizer |
| AU34224/93A AU666918B2 (en) | 1992-01-03 | 1992-12-24 | Granular percarbonate laundry bleach containing layered silicate stabilizer |
| MX9207671A MX9207671A (es) | 1992-01-03 | 1992-12-30 | Composicion blanqueadora granulada para lavanderia. |
| MA23046A MA22754A1 (fr) | 1992-01-03 | 1992-12-30 | Composition granulaire de blanchiment pour blanchisserie. |
| CN93101189A CN1075749A (zh) | 1992-01-03 | 1993-01-02 | 粒状洗衣用漂白组合物 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP92200005A EP0550077A1 (de) | 1992-01-03 | 1992-01-03 | Körnige Bleichmittelzusammensetzung für Wäsche |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0550077A1 true EP0550077A1 (de) | 1993-07-07 |
Family
ID=8210346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92200005A Ceased EP0550077A1 (de) | 1992-01-03 | 1992-01-03 | Körnige Bleichmittelzusammensetzung für Wäsche |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP0550077A1 (de) |
| JP (1) | JPH07502770A (de) |
| KR (1) | KR940703911A (de) |
| CN (1) | CN1075749A (de) |
| AU (1) | AU666918B2 (de) |
| BR (1) | BR9207019A (de) |
| CA (1) | CA2126847A1 (de) |
| MA (1) | MA22754A1 (de) |
| MX (1) | MX9207671A (de) |
| RU (1) | RU94035995A (de) |
| WO (1) | WO1993012843A1 (de) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0639639A1 (de) * | 1993-08-17 | 1995-02-22 | The Procter & Gamble Company | Percarbonat-Bleichmittel enthaltende Waschmittelzusammensetzungen |
| WO1995025065A1 (de) * | 1994-03-14 | 1995-09-21 | Henkel Kommanditgesellschaft Auf Aktien | Lagerstabil fixiertes wasserstoffperoxid enthaltende mehrstoffgemische in feststofform, verfahren zu ihrer herstellung und ihre verwendung |
| WO1996001887A1 (de) * | 1994-07-07 | 1996-01-25 | Henkel Kommanditgesellschaft Auf Aktien | Pulverförmiges bleich- und waschmittel |
| WO1996014267A1 (de) * | 1994-11-02 | 1996-05-17 | Henkel Kommanditgesellschaft Auf Aktien | Direktsynthese kristalliner disilicate aus wasserglaslösung |
| EP0737738A2 (de) | 1995-04-12 | 1996-10-16 | Cleantabs A/S | Bleichmitteltabletten |
| DE19525197A1 (de) * | 1995-07-11 | 1997-01-16 | Hoechst Ag | Granularer Waschmittelbuilder |
| WO1997009269A1 (de) * | 1995-09-04 | 1997-03-13 | Henkel Kommanditgesellschaft Auf Aktien | Lagerstabil fixiertes wasserstoffperoxid enthaltende mehrstoffgemische in feststofform, verfahren zu ihrer herstellung und ihre verwendung |
| EP0695800A3 (de) * | 1994-08-04 | 1997-10-15 | Hoechst Ag | Waschmittel |
| EP0745664B1 (de) * | 1994-02-25 | 1998-05-13 | Eka Chemicals AB | Bleichmittel |
| EP0750661A4 (de) * | 1994-03-14 | 1998-10-07 | Procter & Gamble | Körnige bleichmittelzusammensetzung |
| US5854198A (en) * | 1996-03-15 | 1998-12-29 | Lever Brothers Company, Division Of Conopco, Inc. | Particulate aluminosilicate-built detergent compositions comprising cogranules of zeolite map and alkali metal silicate |
| GB2353800A (en) * | 1999-09-02 | 2001-03-07 | Procter & Gamble | Antibacterial detergent compositions |
| WO2009017748A1 (en) * | 2007-07-30 | 2009-02-05 | Milliken & Company | Solid cleaning composition and method of use |
| WO2009122125A1 (en) * | 2008-04-01 | 2009-10-08 | Reckitt Benckiser Inc. | Laundry treatment compositions |
| FR3072391A1 (fr) * | 2017-10-18 | 2019-04-19 | Quadrimex Chemical | Composition extemporanee comprenant un melange de deux produits pour la destruction de polluants organophosphores et/ou organosoufres |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09511533A (ja) * | 1994-09-19 | 1997-11-18 | ザ、プロクター、エンド、ギャンブル、カンパニー | 顆粒状漂白組成物 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2247533A1 (de) * | 1973-10-10 | 1975-05-09 | Du Pont | |
| EP0337219A2 (de) * | 1988-04-15 | 1989-10-18 | Hoechst Aktiengesellschaft | Lagerstabilisiertes Waschmittel mit verstärkter Bleichwirkung |
| EP0416366A2 (de) * | 1989-09-08 | 1991-03-13 | Hoechst Aktiengesellschaft | Schichtsilikate enthaltendes Geschirrspülmittel |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3413571A1 (de) * | 1984-04-11 | 1985-10-24 | Hoechst Ag, 6230 Frankfurt | Verwendung von kristallinen schichtfoermigen natriumsilikaten zur wasserenthaertung und verfahren zur wasserenthaertung |
| DE3526405A1 (de) * | 1985-07-24 | 1987-02-05 | Henkel Kgaa | Schichtsilikate mit beschraenktem quellvermoegen, verfahren zu ihrer herstellung und ihre verwendung in wasch- und reinigungsmitteln |
| US5087895A (en) * | 1988-02-02 | 1992-02-11 | Motorola, Inc. | Miniature microstrip/cavity oscillator |
| DE3812556A1 (de) * | 1988-04-15 | 1989-10-26 | Hoechst Ag | Waschmittel mit lagerstabilisiertem bleichsystem |
-
1992
- 1992-01-03 EP EP92200005A patent/EP0550077A1/de not_active Ceased
- 1992-12-24 RU RU94035995/04A patent/RU94035995A/ru unknown
- 1992-12-24 BR BR9207019A patent/BR9207019A/pt not_active Application Discontinuation
- 1992-12-24 AU AU34224/93A patent/AU666918B2/en not_active Ceased
- 1992-12-24 JP JP5511910A patent/JPH07502770A/ja active Pending
- 1992-12-24 KR KR1019940702293A patent/KR940703911A/ko not_active Abandoned
- 1992-12-24 CA CA002126847A patent/CA2126847A1/en not_active Abandoned
- 1992-12-24 WO PCT/US1992/011222 patent/WO1993012843A1/en not_active Ceased
- 1992-12-30 MX MX9207671A patent/MX9207671A/es not_active Application Discontinuation
- 1992-12-30 MA MA23046A patent/MA22754A1/fr unknown
-
1993
- 1993-01-02 CN CN93101189A patent/CN1075749A/zh active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2247533A1 (de) * | 1973-10-10 | 1975-05-09 | Du Pont | |
| EP0337219A2 (de) * | 1988-04-15 | 1989-10-18 | Hoechst Aktiengesellschaft | Lagerstabilisiertes Waschmittel mit verstärkter Bleichwirkung |
| EP0416366A2 (de) * | 1989-09-08 | 1991-03-13 | Hoechst Aktiengesellschaft | Schichtsilikate enthaltendes Geschirrspülmittel |
Non-Patent Citations (1)
| Title |
|---|
| SOFW: Seifen, Ole, Fette, Wachse vol. 116, no. 20, 13 December 1990, pages 805-808, Ausburg, DE; F.J. DANY et al.: "Kristallines Schichtsilikat - ein neuer Builder" * |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0639639A1 (de) * | 1993-08-17 | 1995-02-22 | The Procter & Gamble Company | Percarbonat-Bleichmittel enthaltende Waschmittelzusammensetzungen |
| US5846922A (en) * | 1994-02-25 | 1998-12-08 | Eka Chemicals Ab | Bleaching agent |
| EP0745664B1 (de) * | 1994-02-25 | 1998-05-13 | Eka Chemicals AB | Bleichmittel |
| WO1995025065A1 (de) * | 1994-03-14 | 1995-09-21 | Henkel Kommanditgesellschaft Auf Aktien | Lagerstabil fixiertes wasserstoffperoxid enthaltende mehrstoffgemische in feststofform, verfahren zu ihrer herstellung und ihre verwendung |
| EP0750661A4 (de) * | 1994-03-14 | 1998-10-07 | Procter & Gamble | Körnige bleichmittelzusammensetzung |
| WO1996001887A1 (de) * | 1994-07-07 | 1996-01-25 | Henkel Kommanditgesellschaft Auf Aktien | Pulverförmiges bleich- und waschmittel |
| EP0695800A3 (de) * | 1994-08-04 | 1997-10-15 | Hoechst Ag | Waschmittel |
| WO1996014267A1 (de) * | 1994-11-02 | 1996-05-17 | Henkel Kommanditgesellschaft Auf Aktien | Direktsynthese kristalliner disilicate aus wasserglaslösung |
| EP0737738A3 (de) * | 1995-04-12 | 1998-04-01 | Cleantabs A/S | Bleichmitteltabletten |
| EP0737738A2 (de) | 1995-04-12 | 1996-10-16 | Cleantabs A/S | Bleichmitteltabletten |
| DE19525197A1 (de) * | 1995-07-11 | 1997-01-16 | Hoechst Ag | Granularer Waschmittelbuilder |
| WO1997009269A1 (de) * | 1995-09-04 | 1997-03-13 | Henkel Kommanditgesellschaft Auf Aktien | Lagerstabil fixiertes wasserstoffperoxid enthaltende mehrstoffgemische in feststofform, verfahren zu ihrer herstellung und ihre verwendung |
| US5854198A (en) * | 1996-03-15 | 1998-12-29 | Lever Brothers Company, Division Of Conopco, Inc. | Particulate aluminosilicate-built detergent compositions comprising cogranules of zeolite map and alkali metal silicate |
| GB2353800A (en) * | 1999-09-02 | 2001-03-07 | Procter & Gamble | Antibacterial detergent compositions |
| WO2009017748A1 (en) * | 2007-07-30 | 2009-02-05 | Milliken & Company | Solid cleaning composition and method of use |
| WO2009122125A1 (en) * | 2008-04-01 | 2009-10-08 | Reckitt Benckiser Inc. | Laundry treatment compositions |
| FR3072391A1 (fr) * | 2017-10-18 | 2019-04-19 | Quadrimex Chemical | Composition extemporanee comprenant un melange de deux produits pour la destruction de polluants organophosphores et/ou organosoufres |
| FR3072390A1 (fr) * | 2017-10-18 | 2019-04-19 | Quadrimex Chemical Sas | Composition extemporanee comprenant un melange de deux produits pour la destruction de polluants organophosphores et/ou organosoufres |
Also Published As
| Publication number | Publication date |
|---|---|
| AU666918B2 (en) | 1996-02-29 |
| BR9207019A (pt) | 1995-12-05 |
| MA22754A1 (fr) | 1993-07-01 |
| MX9207671A (es) | 1994-05-31 |
| CA2126847A1 (en) | 1993-07-08 |
| CN1075749A (zh) | 1993-09-01 |
| RU94035995A (ru) | 1996-06-20 |
| KR940703911A (ko) | 1994-12-12 |
| JPH07502770A (ja) | 1995-03-23 |
| WO1993012843A1 (en) | 1993-07-08 |
| AU3422493A (en) | 1993-07-28 |
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