WO2003076357B1 - A product for the protection of refractory materials - Google Patents
A product for the protection of refractory materialsInfo
- Publication number
- WO2003076357B1 WO2003076357B1 PCT/EP2003/002223 EP0302223W WO03076357B1 WO 2003076357 B1 WO2003076357 B1 WO 2003076357B1 EP 0302223 W EP0302223 W EP 0302223W WO 03076357 B1 WO03076357 B1 WO 03076357B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- refractory materials
- protection
- product
- weight ratio
- set forth
- Prior art date
Links
- 239000011819 refractory material Substances 0.000 title claims abstract 14
- 230000004907 flux Effects 0.000 claims abstract 12
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract 10
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims abstract 10
- 229910000027 potassium carbonate Inorganic materials 0.000 claims abstract 5
- 238000007670 refining Methods 0.000 claims abstract 5
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract 5
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract 4
- 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 claims abstract 4
- 229910021538 borax Inorganic materials 0.000 claims abstract 4
- 229910052796 boron Inorganic materials 0.000 claims abstract 4
- IJKVHSBPTUYDLN-UHFFFAOYSA-N dihydroxy(oxo)silane Chemical class O[Si](O)=O IJKVHSBPTUYDLN-UHFFFAOYSA-N 0.000 claims abstract 4
- 159000000011 group IA salts Chemical class 0.000 claims abstract 4
- 229910052751 metal Inorganic materials 0.000 claims abstract 4
- 239000002184 metal Substances 0.000 claims abstract 4
- 150000002739 metals Chemical class 0.000 claims abstract 4
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical class O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract 4
- 235000010339 sodium tetraborate Nutrition 0.000 claims abstract 4
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 claims abstract 4
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims abstract 3
- 239000004327 boric acid Substances 0.000 claims abstract 3
- 239000000571 coke Substances 0.000 claims abstract 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 8
- 239000003513 alkali Substances 0.000 claims 4
- 239000000203 mixture Substances 0.000 claims 4
- 239000000377 silicon dioxide Substances 0.000 claims 4
- 239000004115 Sodium Silicate Substances 0.000 claims 3
- 229910052911 sodium silicate Inorganic materials 0.000 claims 3
- 239000004111 Potassium silicate Substances 0.000 claims 2
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims 2
- 229910052913 potassium silicate Inorganic materials 0.000 claims 2
- 235000019353 potassium silicate Nutrition 0.000 claims 2
- 238000000889 atomisation Methods 0.000 claims 1
- 150000004686 pentahydrates Chemical class 0.000 claims 1
- 235000019795 sodium metasilicate Nutrition 0.000 claims 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5076—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with masses bonded by inorganic cements
- C04B41/5089—Silica sols, alkyl, ammonium or alkali metal silicate cements
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B29/00—Other details of coke ovens
- C10B29/06—Preventing or repairing leakages of the brickwork
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
- C04B2111/00551—Refractory coatings, e.g. for tamping
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/72—Repairing or restoring existing buildings or building materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3201—Alkali metal oxides or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3279—Nickel oxides, nickalates, or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3409—Boron oxide, borates, boric acids, or oxide forming salts thereof, e.g. borax
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/442—Carbonates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/448—Sulphates or sulphites
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M2900/00—Special features of, or arrangements for combustion chambers
- F23M2900/05004—Special materials for walls or lining
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Ceramic Products (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
A product intended for use in the protection and the possible repair of refractory materials, composed of alkaline salts of silicic and/or metasilicic acid, of fluxes and of refining products. The fluxes include fluxes derived from alkaline metals and hardening fluxes derived from boron, more particularly, the fluxes derived from alkaline metals may be sodium and/or potassium carbonate, and the hardening fluxes derived from boron may be boric acid or sodium borate. The refining products may consist in sodium sulphate. The product is intended mainly but not exclusively for the treatment of refractory materials in the coke ovens.
Claims
1 . A powdery product intended for use by dry atomization in the protection and the possible repair of refractory materials, characterized in that it includes alkaline salts of the silicic and/or metasilicic acid, fluxes and refining products, wherein said fluxes include fluxes derived from alkaline metals, consisting in sodium and/or potassium carbonate, and hardening fluxes derived from boron, consisting in boric acid or sodium borate, the alkaline salts of the silicic and/or metasilicic acid have a weight ratio between alkali and silica from 1 to 3, and the refining products include sodium sulphate.
2 . A product intended for use in the protection and the possible repair of refractory materials, as set forth in Claim 1 , characterized in that the alkaline salts of silicic and/or metasilicic acid are included in the product in a weight ratio from 30% to 60%, and preferably from 45% to 60%.
3 . A product intended for use in the protection and the possible re- pair of refractory materials, as set forth in Claim 1 , characterized in that the fluxes derived from alkaline metals are included in the product in a weight ratio from 10% to 25%, and preferably from 10% to 20%.
4 . A product intended for use in the protection and the possible repair of refractory materials, as set forth in Claim 1 , characterized in that the hardening fluxes derived from boron are included in the product in a weight ratio from 10% to 30%, and preferably from 10% to 25%.
5 . A product intended for use in the protection and the possible repair of refractory materials, as set forth in Claim 1 , characterized in that the refining products are included in the product in a weight ratio from 3% to 10%, and preferably from 5% to 7%.
6 . A product intended for use in the protection and the possible repair of refractory materials, as set forth in one or more of the foregoing Claims, characterized by a composition at least approximately corresponding to the following one: Pentahydrate or anhydrous sodium metasilicate having a weight ratio alkali/silica 1 :1 58 % Boric acid 15 % Potassium carbonate 20 % Sodium sulphate 7 %
7 . A product intended for use in the protection and the possible repair of refractory materials, as set forth in one or more of the foregoing Claims, characterized by a composition at least approximately corresponding to the following one: Sodium or potassium silicate having a weight ratio alkali/silica 1 :2 60 % Sodium borate 20 % Potassium carbonate 18 % Sodium sulphate 5 %
8 . A product intended for use in the protection and the possible repair of refractory materials, as set forth in one or more of the foregoing Claims, characterized by a composition at least approximately corresponding to the following one: Sodium or potassium silicate having a weight ratio alkali/silica 1 :3 54,0 % Sodium borate 25,0 % Potassium carbonate 15,5 % Sodium sulphate 5,5 %
9 . A product intended for use in the protection and the possible re- pair of refractory materials, as set forth in one or more of the foregoing
Claims, characterized by its particular destination to refractory materials of coke ovens.
10 . A product intended for use in the protection and the possible repair of refractory materials, characterized by the peculiarities, components and compositions, as they appear from the foregoing specification or replaced by technically equivalent means and possibly added with further components.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BR0303386-4A BR0303386A (en) | 2002-03-13 | 2003-03-04 | Dry powder product intended for use by spray drying to protect and possibly repair refractory materials |
| EP03709747A EP1513780A1 (en) | 2002-03-13 | 2003-03-04 | A product for the protection of refractory materials |
| AU2003214094A AU2003214094A1 (en) | 2002-03-13 | 2003-03-04 | A product for the protection of refractory materials |
| NO20034586A NO20034586L (en) | 2002-03-13 | 2003-10-13 | Product for protection and repair of refractory materials |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2002TO000217A ITTO20020217A1 (en) | 2002-03-13 | 2002-03-13 | PRODUCT FOR THE PROTECTION OF REFRACTORY MATERIALS. |
| ITTO2002A000217 | 2002-03-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2003076357A1 WO2003076357A1 (en) | 2003-09-18 |
| WO2003076357B1 true WO2003076357B1 (en) | 2005-01-06 |
Family
ID=27638918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2003/002223 WO2003076357A1 (en) | 2002-03-13 | 2003-03-04 | A product for the protection of refractory materials |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1513780A1 (en) |
| CN (1) | CN100441540C (en) |
| AU (1) | AU2003214094A1 (en) |
| BR (1) | BR0303386A (en) |
| IT (1) | ITTO20020217A1 (en) |
| NO (1) | NO20034586L (en) |
| PL (1) | PL205514B1 (en) |
| WO (1) | WO2003076357A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4833846B2 (en) * | 2004-07-05 | 2011-12-07 | 株式会社エービーシー建材研究所 | Snow melting and antifreezing agent |
| BE1017674A3 (en) * | 2007-07-05 | 2009-03-03 | Fib Services Internat | REFRACTORY WALL CHAMBER TREATING COMPOSITION AND METHOD FOR CARRYING OUT THE SAME. |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR779168A (en) * | 1934-10-02 | 1935-03-30 | Cie Internationale De Produits | Improvements made to fireproof and heat-insulating plasters |
| NL7213626A (en) * | 1972-10-09 | 1974-04-11 | ||
| JP3166098B2 (en) * | 1994-10-14 | 2001-05-14 | 川崎製鉄株式会社 | High temperature refractory material surface treatment method |
-
2002
- 2002-03-13 IT IT2002TO000217A patent/ITTO20020217A1/en unknown
-
2003
- 2003-03-04 EP EP03709747A patent/EP1513780A1/en not_active Withdrawn
- 2003-03-04 AU AU2003214094A patent/AU2003214094A1/en not_active Abandoned
- 2003-03-04 PL PL372348A patent/PL205514B1/en unknown
- 2003-03-04 CN CNB038056658A patent/CN100441540C/en not_active Expired - Fee Related
- 2003-03-04 WO PCT/EP2003/002223 patent/WO2003076357A1/en not_active Application Discontinuation
- 2003-03-04 BR BR0303386-4A patent/BR0303386A/en not_active Application Discontinuation
- 2003-10-13 NO NO20034586A patent/NO20034586L/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ITTO20020217A1 (en) | 2003-09-15 |
| PL205514B1 (en) | 2010-04-30 |
| CN100441540C (en) | 2008-12-10 |
| EP1513780A1 (en) | 2005-03-16 |
| PL372348A1 (en) | 2005-07-11 |
| AU2003214094A1 (en) | 2003-09-22 |
| CN1639083A (en) | 2005-07-13 |
| NO20034586D0 (en) | 2003-10-13 |
| BR0303386A (en) | 2004-03-30 |
| ITTO20020217A0 (en) | 2002-03-13 |
| WO2003076357A1 (en) | 2003-09-18 |
| NO20034586L (en) | 2003-10-13 |
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