DE69224233T2 - Körnige Detergenszusammensetzungen mit hohem Schüttgewicht - Google Patents
Körnige Detergenszusammensetzungen mit hohem SchüttgewichtInfo
- Publication number
- DE69224233T2 DE69224233T2 DE69224233T DE69224233T DE69224233T2 DE 69224233 T2 DE69224233 T2 DE 69224233T2 DE 69224233 T DE69224233 T DE 69224233T DE 69224233 T DE69224233 T DE 69224233T DE 69224233 T2 DE69224233 T2 DE 69224233T2
- Authority
- DE
- Germany
- Prior art keywords
- detergent
- sodium
- weight
- bulk density
- carbonate
- 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 - Fee Related
Links
- 239000000203 mixture Substances 0.000 title claims description 73
- 239000003599 detergent Substances 0.000 title claims description 65
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 55
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 44
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 43
- 229940045872 sodium percarbonate Drugs 0.000 claims description 28
- VTIIJXUACCWYHX-UHFFFAOYSA-L disodium;carboxylatooxy carbonate Chemical compound [Na+].[Na+].[O-]C(=O)OOC([O-])=O VTIIJXUACCWYHX-UHFFFAOYSA-L 0.000 claims description 26
- 150000001875 compounds Chemical class 0.000 claims description 23
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 22
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 21
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 18
- 238000004061 bleaching Methods 0.000 claims description 18
- 239000004615 ingredient Substances 0.000 claims description 18
- 239000007844 bleaching agent Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- 125000000864 peroxy group Chemical group O(O*)* 0.000 claims description 15
- 239000002736 nonionic surfactant Substances 0.000 claims description 14
- 239000003513 alkali Substances 0.000 claims description 13
- -1 primary alcohol sulfate Chemical class 0.000 claims description 12
- 239000002585 base Substances 0.000 claims description 10
- XSVSPKKXQGNHMD-UHFFFAOYSA-N 5-bromo-3-methyl-1,2-thiazole Chemical compound CC=1C=C(Br)SN=1 XSVSPKKXQGNHMD-UHFFFAOYSA-N 0.000 claims description 8
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 8
- 238000001694 spray drying Methods 0.000 claims description 8
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 7
- 235000011152 sodium sulphate Nutrition 0.000 claims description 7
- 238000005469 granulation Methods 0.000 claims description 5
- 230000003179 granulation Effects 0.000 claims description 5
- 239000002002 slurry Substances 0.000 claims description 5
- 150000004682 monohydrates Chemical group 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000005056 compaction Methods 0.000 claims description 2
- 229910000288 alkali metal carbonate Inorganic materials 0.000 claims 1
- 150000008041 alkali metal carbonates Chemical class 0.000 claims 1
- 239000000843 powder Substances 0.000 description 52
- 238000003860 storage Methods 0.000 description 22
- 235000017550 sodium carbonate Nutrition 0.000 description 21
- 229940001593 sodium carbonate Drugs 0.000 description 19
- 230000000052 comparative effect Effects 0.000 description 14
- 229910021532 Calcite Inorganic materials 0.000 description 12
- 238000009472 formulation Methods 0.000 description 11
- 239000008187 granular material Substances 0.000 description 7
- 239000000344 soap Substances 0.000 description 7
- 239000010457 zeolite Substances 0.000 description 7
- 229910021536 Zeolite Inorganic materials 0.000 description 6
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 6
- 239000002243 precursor Substances 0.000 description 6
- 239000004094 surface-active agent Substances 0.000 description 6
- 239000004115 Sodium Silicate Substances 0.000 description 5
- MQRJBSHKWOFOGF-UHFFFAOYSA-L disodium;carbonate;hydrate Chemical compound O.[Na+].[Na+].[O-]C([O-])=O MQRJBSHKWOFOGF-UHFFFAOYSA-L 0.000 description 5
- 230000036571 hydration Effects 0.000 description 5
- 238000006703 hydration reaction Methods 0.000 description 5
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 5
- 229910052911 sodium silicate Inorganic materials 0.000 description 5
- 239000003945 anionic surfactant Substances 0.000 description 4
- 235000013305 food Nutrition 0.000 description 4
- 239000002304 perfume Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 229940076133 sodium carbonate monohydrate Drugs 0.000 description 4
- 229960001922 sodium perborate Drugs 0.000 description 4
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 description 4
- FRPJTGXMTIIFIT-UHFFFAOYSA-N tetraacetylethylenediamine Chemical compound CC(=O)C(N)(C(C)=O)C(N)(C(C)=O)C(C)=O FRPJTGXMTIIFIT-UHFFFAOYSA-N 0.000 description 4
- 102000004190 Enzymes Human genes 0.000 description 3
- 108090000790 Enzymes Proteins 0.000 description 3
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 3
- GBFLZEXEOZUWRN-VKHMYHEASA-N S-carboxymethyl-L-cysteine Chemical compound OC(=O)[C@@H](N)CSCC(O)=O GBFLZEXEOZUWRN-VKHMYHEASA-N 0.000 description 3
- 238000013019 agitation Methods 0.000 description 3
- 239000002518 antifoaming agent Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229940088598 enzyme Drugs 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 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 2
- 229940120146 EDTMP Drugs 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 2
- 239000012190 activator Substances 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 150000008051 alkyl sulfates Chemical group 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- NFDRPXJGHKJRLJ-UHFFFAOYSA-N edtmp Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CCN(CP(O)(O)=O)CP(O)(O)=O NFDRPXJGHKJRLJ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- MWNQXXOSWHCCOZ-UHFFFAOYSA-L sodium;oxido carbonate Chemical compound [Na+].[O-]OC([O-])=O MWNQXXOSWHCCOZ-UHFFFAOYSA-L 0.000 description 2
- MSLRPWGRFCKNIZ-UHFFFAOYSA-J tetrasodium;hydrogen peroxide;dicarbonate Chemical compound [Na+].[Na+].[Na+].[Na+].OO.OO.OO.[O-]C([O-])=O.[O-]C([O-])=O MSLRPWGRFCKNIZ-UHFFFAOYSA-J 0.000 description 2
- YNJSNEKCXVFDKW-UHFFFAOYSA-N 3-(5-amino-1h-indol-3-yl)-2-azaniumylpropanoate Chemical compound C1=C(N)C=C2C(CC(N)C(O)=O)=CNC2=C1 YNJSNEKCXVFDKW-UHFFFAOYSA-N 0.000 description 1
- 102000013142 Amylases Human genes 0.000 description 1
- 108010065511 Amylases Proteins 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 102000005575 Cellulases Human genes 0.000 description 1
- 108010084185 Cellulases Proteins 0.000 description 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 102000004882 Lipase Human genes 0.000 description 1
- 108090001060 Lipase Proteins 0.000 description 1
- 239000004367 Lipase Substances 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 102000035195 Peptidases Human genes 0.000 description 1
- 108091005804 Peptidases Proteins 0.000 description 1
- 239000004365 Protease Substances 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical class OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 description 1
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 235000019418 amylase Nutrition 0.000 description 1
- 229940025131 amylases Drugs 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 235000019421 lipase Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 150000004965 peroxy acids Chemical class 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001983 poloxamer Polymers 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 150000003138 primary alcohols Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003333 secondary alcohols Chemical class 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 1
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 1
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 235000019794 sodium silicate Nutrition 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D11/00—Special methods for preparing compositions containing mixtures of detergents
- C11D11/02—Preparation in the form of powder by spray drying
-
- 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
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/10—Carbonates ; Bicarbonates
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/12—Water-insoluble compounds
- C11D3/1233—Carbonates, e.g. calcite or dolomite
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- 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)
- Detergent Compositions (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB919112384A GB9112384D0 (en) | 1991-06-10 | 1991-06-10 | Detergent compositions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69224233D1 DE69224233D1 (de) | 1998-03-05 |
| DE69224233T2 true DE69224233T2 (de) | 1998-05-20 |
Family
ID=10696356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69224233T Expired - Fee Related DE69224233T2 (de) | 1991-06-10 | 1992-06-05 | Körnige Detergenszusammensetzungen mit hohem Schüttgewicht |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0518576B1 (enrdf_load_stackoverflow) |
| CA (1) | CA2070471C (enrdf_load_stackoverflow) |
| DE (1) | DE69224233T2 (enrdf_load_stackoverflow) |
| ES (1) | ES2112299T3 (enrdf_load_stackoverflow) |
| GB (1) | GB9112384D0 (enrdf_load_stackoverflow) |
| IN (1) | IN174518B (enrdf_load_stackoverflow) |
| TW (1) | TW229228B (enrdf_load_stackoverflow) |
| ZA (1) | ZA924231B (enrdf_load_stackoverflow) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5773399A (en) * | 1993-12-10 | 1998-06-30 | The Procter & Gamble Comapny | Stabilization of oxidation-sensitive ingredients in percarbonate detergent compositions |
| ATE183543T1 (de) * | 1993-12-10 | 1999-09-15 | Procter & Gamble | Stabilisierung von oxidationsempfindlichen wirkstoffen in percarbonat enthaltende detergenszusammensetzungen |
| US5733865A (en) * | 1995-05-31 | 1998-03-31 | The Procter & Gamble Company | Processes for making a crystalline builder having improved performance |
| US5731279A (en) * | 1995-05-31 | 1998-03-24 | The Procter & Gamble Company | Cleaning compositions containing a crystalline builder material having improved performance |
| US5658867A (en) * | 1995-05-31 | 1997-08-19 | The Procter & Gamble Company | Cleaning compositions containing a crystalline builder material in selected particle size ranges for improved performance |
| US5707959A (en) * | 1995-05-31 | 1998-01-13 | The Procter & Gamble Company | Processes for making a granular detergent composition containing a crystalline builder |
| US6114289A (en) * | 1997-03-11 | 2000-09-05 | The Procter & Gamble Company | Encapsulated crystalline calcium carbonate builder for use in detergent compositions |
| US6130194A (en) * | 1997-03-11 | 2000-10-10 | The Procter & Gamble Company | Crystalline calcium carbonate builder enrobed with a hydrotrope for use in detergent compositions |
| US6100232A (en) * | 1998-03-02 | 2000-08-08 | The Procter & Gamble Company | Process for making a granular detergent composition containing a selected crystalline calcium carbonate builder |
| US6610645B2 (en) | 1998-03-06 | 2003-08-26 | Eugene Joseph Pancheri | Selected crystalline calcium carbonate builder for use in detergent compositions |
| CN108884426A (zh) * | 2016-03-02 | 2018-11-23 | 海瑞斯研究公司 | 污渍和气味处理 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1583081A (en) * | 1977-05-18 | 1981-01-21 | Unilever Ltd | Production of detergent compositions |
| NZ188209A (en) * | 1977-09-12 | 1980-04-28 | Colgate Palmolive Co | Free-flowing, phosphate-free, particulate, heavy-duty laundry detergent |
| GB8334017D0 (en) * | 1983-12-21 | 1984-02-01 | Unilever Plc | Detergent composition |
| GB8526998D0 (en) * | 1985-11-01 | 1985-12-04 | Unilever Plc | Detergent powder |
| GB8907187D0 (en) * | 1989-03-30 | 1989-05-10 | Unilever Plc | Detergent compositions and process for preparing them |
-
1991
- 1991-06-10 GB GB919112384A patent/GB9112384D0/en active Pending
-
1992
- 1992-06-04 CA CA002070471A patent/CA2070471C/en not_active Expired - Fee Related
- 1992-06-05 DE DE69224233T patent/DE69224233T2/de not_active Expired - Fee Related
- 1992-06-05 ES ES92305203T patent/ES2112299T3/es not_active Expired - Lifetime
- 1992-06-05 EP EP92305203A patent/EP0518576B1/en not_active Expired - Lifetime
- 1992-06-10 TW TW081104522A patent/TW229228B/zh active
- 1992-06-10 ZA ZA924231A patent/ZA924231B/xx unknown
- 1992-06-10 IN IN187BO1992 patent/IN174518B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP0518576A2 (en) | 1992-12-16 |
| DE69224233D1 (de) | 1998-03-05 |
| EP0518576A3 (en) | 1993-08-04 |
| ES2112299T3 (es) | 1998-04-01 |
| GB9112384D0 (en) | 1991-07-31 |
| ZA924231B (en) | 1993-12-10 |
| IN174518B (enrdf_load_stackoverflow) | 1994-12-31 |
| CA2070471C (en) | 1997-05-06 |
| CA2070471A1 (en) | 1992-12-11 |
| EP0518576B1 (en) | 1998-01-28 |
| TW229228B (enrdf_load_stackoverflow) | 1994-09-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |