WO2002079117A1 - Procede de fabrication de structures en nid d'abeilles - Google Patents
Procede de fabrication de structures en nid d'abeilles Download PDFInfo
- Publication number
- WO2002079117A1 WO2002079117A1 PCT/JP2002/002973 JP0202973W WO02079117A1 WO 2002079117 A1 WO2002079117 A1 WO 2002079117A1 JP 0202973 W JP0202973 W JP 0202973W WO 02079117 A1 WO02079117 A1 WO 02079117A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- raw material
- honeycomb structure
- ceramic raw
- fatty acid
- dispersant
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000000919 ceramic Substances 0.000 claims abstract description 51
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 45
- 239000002270 dispersing agent Substances 0.000 claims abstract description 45
- 239000000194 fatty acid Substances 0.000 claims abstract description 45
- 229930195729 fatty acid Natural products 0.000 claims abstract description 45
- -1 fatty acid salt Chemical class 0.000 claims abstract description 36
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims description 78
- 238000004898 kneading Methods 0.000 claims description 32
- 238000001125 extrusion Methods 0.000 claims description 14
- 239000011230 binding agent Substances 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 6
- 239000001913 cellulose Substances 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims description 2
- 229910010293 ceramic material Inorganic materials 0.000 claims 1
- 239000002585 base Substances 0.000 description 31
- 230000000694 effects Effects 0.000 description 21
- 230000000052 comparative effect Effects 0.000 description 16
- 150000004665 fatty acids Chemical class 0.000 description 14
- 230000007423 decrease Effects 0.000 description 11
- 239000004927 clay Substances 0.000 description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- KAKVFSYQVNHFBS-UHFFFAOYSA-N (5-hydroxycyclopenten-1-yl)-phenylmethanone Chemical compound OC1CCC=C1C(=O)C1=CC=CC=C1 KAKVFSYQVNHFBS-UHFFFAOYSA-N 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 125000002947 alkylene group Chemical group 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 4
- 239000005995 Aluminium silicate Substances 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 239000005639 Lauric acid Substances 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 235000012211 aluminium silicate Nutrition 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 150000005846 sugar alcohols Polymers 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
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- 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 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000002612 dispersion medium Substances 0.000 description 2
- UKMSUNONTOPOIO-UHFFFAOYSA-N docosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCC(O)=O UKMSUNONTOPOIO-UHFFFAOYSA-N 0.000 description 2
- ZQPPMHVWECSIRJ-MDZDMXLPSA-N elaidic acid Chemical compound CCCCCCCC\C=C\CCCCCCCC(O)=O ZQPPMHVWECSIRJ-MDZDMXLPSA-N 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 2
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- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 2
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- SECPZKHBENQXJG-FPLPWBNLSA-N palmitoleic acid Chemical compound CCCCCC\C=C/CCCCCCCC(O)=O SECPZKHBENQXJG-FPLPWBNLSA-N 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- OYHQOLUKZRVURQ-NTGFUMLPSA-N (9Z,12Z)-9,10,12,13-tetratritiooctadeca-9,12-dienoic acid Chemical compound C(CCCCCCC\C(=C(/C\C(=C(/CCCCC)\[3H])\[3H])\[3H])\[3H])(=O)O OYHQOLUKZRVURQ-NTGFUMLPSA-N 0.000 description 1
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 229910000505 Al2TiO5 Inorganic materials 0.000 description 1
- 229910052580 B4C Inorganic materials 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- 235000021357 Behenic acid Nutrition 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- 235000021319 Palmitoleic acid Nutrition 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 229910026551 ZrC Inorganic materials 0.000 description 1
- OTCHGXYCWNXDOA-UHFFFAOYSA-N [C].[Zr] Chemical compound [C].[Zr] OTCHGXYCWNXDOA-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- DTOSIQBPPRVQHS-PDBXOOCHSA-N alpha-linolenic acid Chemical compound CC\C=C/C\C=C/C\C=C/CCCCCCCC(O)=O DTOSIQBPPRVQHS-PDBXOOCHSA-N 0.000 description 1
- 235000020661 alpha-linolenic acid Nutrition 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229940116226 behenic acid Drugs 0.000 description 1
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- SECPZKHBENQXJG-UHFFFAOYSA-N cis-palmitoleic acid Natural products CCCCCCC=CCCCCCCCC(O)=O SECPZKHBENQXJG-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
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- 239000005350 fused silica glass Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229960004488 linolenic acid Drugs 0.000 description 1
- KQQKGWQCNNTQJW-UHFFFAOYSA-N linolenic acid Natural products CC=CCCC=CCC=CCCCCCCCC(O)=O KQQKGWQCNNTQJW-UHFFFAOYSA-N 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 235000021313 oleic acid Nutrition 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- AABBHSMFGKYLKE-SNAWJCMRSA-N propan-2-yl (e)-but-2-enoate Chemical compound C\C=C\C(=O)OC(C)C AABBHSMFGKYLKE-SNAWJCMRSA-N 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- WBHHMMIMDMUBKC-XLNAKTSKSA-N ricinelaidic acid Chemical compound CCCCCC[C@@H](O)C\C=C\CCCCCCCC(O)=O WBHHMMIMDMUBKC-XLNAKTSKSA-N 0.000 description 1
- 229960003656 ricinoleic acid Drugs 0.000 description 1
- FEUQNCSVHBHROZ-UHFFFAOYSA-N ricinoleic acid Natural products CCCCCCC(O[Si](C)(C)C)CC=CCCCCCCCC(=O)OC FEUQNCSVHBHROZ-UHFFFAOYSA-N 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/0006—Honeycomb structures
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
- C04B35/18—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in aluminium oxide
- C04B35/195—Alkaline earth aluminosilicates, e.g. cordierite or anorthite
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/62625—Wet mixtures
- C04B35/6263—Wet mixtures characterised by their solids loadings, i.e. the percentage of solids
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/636—Polysaccharides or derivatives thereof
- C04B35/6365—Cellulose or derivatives thereof
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- C04B2235/6021—Extrusion moulding
Definitions
- the present invention relates to a method for manufacturing a honeycomb structure. More specifically, the present invention relates to a method for manufacturing a honeycomb structure having excellent formability and productivity and capable of reducing a load on a forming apparatus.
- a method using this continuous extrusion molding apparatus is as follows.
- a ceramic raw material obtained by adding a dispersion medium such as water and an additive such as a binder to a granular ceramic raw material is charged into a continuous extrusion molding apparatus, and a twin screw or the like is used.
- the step of kneading the raw material while transporting the same and the step of extruding the kneaded clay obtained by the kneading step are continuously performed, and extremely high productivity can be expected.
- the ceramic raw material having a relatively large viscosity receives a large amount of mechanical energy from the device during the kneading, and generates a large amount of heat in the raw material.
- the binder in the ceramic raw material gels and the ceramic raw material is hardened, resulting in poor molding due to uneven kneading, and in some cases, the equipment must be stopped.
- this manufacturing method does not reduce the pressure generated in the ceramic raw material at all, the load on the molding apparatus is large, and the kneading blades and the die are worn and damaged, and the power consumption is increased. And so on.
- this production method involves kneading the ceramic raw material while maintaining a high viscosity, when kneading is performed in a short time as in a continuous extrusion molding device, each component in the ceramic raw material is not kneaded. However, it was not possible to completely homogenize the mixture, and there was a problem that molding defects were caused by uneven kneading.
- each component in the ceramic raw material base could not be made uniform by the short-time kneading step, so that the kneading step and the extrusion step were performed continuously, and the kneading step was set in a short time.
- a continuous extrusion molding apparatus is used, there is still a problem that molding defects occur due to uneven kneading.
- the present invention makes it possible to manufacture a honeycomb structure excellent in formability with high productivity and to reduce the load on a forming apparatus.
- the aim is to provide a method. Disclosure of the invention
- the present inventors have found that the above object can be achieved by adding a dispersant containing a fatty acid salt having a neutralization degree limited to a specific range as a main component, and completed the present invention.
- a dispersant containing a fatty acid salt having a neutralization degree limited to a specific range as a main component and completed the present invention.
- a method for manufacturing a honeycomb structure in which at least water and a dispersant are added to and kneaded with a granular ceramic raw material to obtain a kneaded material, and extruding the obtained kneaded material,
- the dispersant has a degree of neutralization of 58% or more and less than 100%, preferably a degree of neutralization of 58% or more and less than 99%, more preferably a degree of neutralization of 71% or more and less than 95%, particularly preferably medium.
- a method for producing a honeycomb structure comprising a fatty acid salt having a degree of purity of 77% or more and less than 90% as a main component.
- such a dispersant is preferably added in an amount of 0.1 to 2 parts by weight (in terms of solid content) based on 100 parts by weight of the granular ceramic raw material.
- the granular ceramic raw material contains a cordierite-forming raw material as a main component. Further, a ceramic raw material base obtained by adding at least water and a dispersant to the granular ceramic raw material is charged into a continuous extruder, and the ceramic raw material base is kneaded, and the clay obtained by the kneading step is extruded. It is preferable that the step of performing the above is performed continuously.
- FIG. 1 is a graph showing the test results used in obtaining the general formula (1) for calculating the degree of decrease in the torque peak value for measuring the effect of the present invention.
- FIG. 2 is a graph showing the relationship between the degree of neutralization and the degree of decrease in the torque peak value when dispersants containing fatty acid salts having different degrees of neutralization as main components are used.
- a dispersant mainly composed of a fatty acid salt having a degree of neutralization of 58% or more and less than 100%, and water are added to the granular ceramic raw material, and kneaded. Then, the kneaded material is obtained, and the obtained kneaded material is extruded.
- the granular ceramic raw material used in the present invention is not particularly limited. Examples thereof include silicon, titanium, zirconium, silicon carbide, boron carbide, titanium carbide, zirconium carbide, silicon nitride, boron nitride, and aluminum nitride. , Aluminum oxide, zirconium oxide, mullite, cordierite-forming raw material, aluminum titanate, sialon, kaolin, talc, aluminum hydroxide, fused silica, quartz, etc. Can be mentioned.
- the granular ceramic raw material may be a mixture of these ceramics and a metal such as copper, aluminum, iron, nickel, or the like.
- the dispersant used in the present invention is a fatty acid salt having a degree of neutralization of 58% or more and less than 100%, preferably a degree of neutralization of 58% or more and less than 99%, more preferably a degree of neutralization of 71% or more and 9% or less.
- the main component is a fatty acid salt of less than 5%, particularly preferably a fatty acid salt having a degree of neutralization of 77% or more and less than 90%.
- the dispersing agent does not act on the granular ceramic raw material or the binder and agglomerates between the dispersing agents.
- the effect of reducing the pressure applied to the substrate and the heat generated in the ceramic raw material substrate, the effect of reducing the load on the extrusion molding equipment, and the effect of promoting rapid uniformization are reduced.
- the degree of neutralization is 100% or more, the ratio of released metal ions (base portion) increases, and the dispersing agent tends to separate from the granular ceramic raw material and the binder, causing the dispersing agent to exist. Again, the above-mentioned effects are reduced.
- the degree of neutralization means the ratio of the equivalents of counterions present in the dispersant when the equivalents of all fatty acids present in the dispersant are 100%.
- an aqueous solution of a hydroxide containing a desired base moiety such as sodium hydroxide or potassium hydroxide is adjusted at a predetermined concentration, and while the aqueous solution is being stirred, the solution temperature is adjusted to the desired fatty acid salt.
- the melting point of the fatty acid corresponding to the fatty acid portion is set as above, and then the fatty acid corresponding to the fatty acid portion of the desired fatty acid salt is added to the aqueous hydroxide solution and stirred. To be prepared.
- the content of the hydroxide aqueous solution and the fatty acid to be mixed is such that the base and the fatty acid in the hydroxide are equivalent ratios corresponding to a desired value of the degree of neutralization in terms of solid content, respectively.
- the fatty acid salt used as the main component of the dispersant may be any of a saturated fatty acid salt or an unsaturated fatty acid salt, and may be any of a linear fatty acid salt or a branched fatty acid salt.
- a fatty acid salt having 8 to 22 carbon atoms is preferable, and a fatty acid salt having 10 to 18 carbon atoms is more preferable.
- fatty acid portion is cypriprilic acid, cystic acid, lauric acid, myristic acid, palmitic acid, stearic acid, araquinic acid, behenic acid, palmitoleic acid, oleic acid, elaidic acid, Fatty acid salts such as linoleic acid, linolenic acid, erlic acid, or ricinoleic acid are preferred.
- the fatty acid salt has 8 to 22 carbon atoms, kneading with the ceramic raw material base becomes easy, and a greater dispersing effect can be obtained.
- Examples of the base moiety of the fatty acid salt include alkali metals such as sodium and potassium, alkaline earth metals such as calcium and magnesium, and ammonia. Above all, the effect of reducing the pressure applied to the ceramic raw material and the heat generated in the ceramic raw material is greater, and the components in the ceramic raw material are more quickly homogenized when kneading the ceramic raw material. In view of this, a fatty acid salt in which the base portion of the fatty acid salt is sodium or potassium is preferred. Both the fatty acid portion and the base portion dissociate in the dispersant and exist as ions.
- the dispersant used in the present invention may be, if necessary, for example, a wetting agent such as ethylene glycol, dipropylene glycol, or glycerin, an alkylene oxide adduct of a higher alcohol, a sorbine ester, or an alkylene oxide adduct of a sorbitan ester.
- a nonionic surfactant such as a polyhydric alcohol ester, an alkylene oxide adduct of a polyhydric alcohol, or an alkylene oxide adduct of a polyhydric alcohol ester can be contained.
- components other than these fatty acid salts are preferably contained in the dispersant in the range of 0 to 80% by mass, and more preferably in the range of 0 to 50% by mass.
- such a dispersant is preferably added in an amount of 0.1 to 2 parts by weight (in terms of solid content) based on 100 parts by weight of the granular ceramic raw material, It is more preferable to add 1 part by weight (in terms of solid content).
- the affinity between the dispersant and the ceramic raw material base is good, so that each component in the ceramic raw material base can be uniformly dispersed by kneading in a short time, and Sufficient effects can be obtained in reducing the pressure applied to the ceramic raw material base when extruding the soil and reducing the heat generated in the ceramic raw material base, and applying an excessive load to the forming equipment
- a honeycomb structure having high formability can be obtained by short-time kneading.
- Water used as a dispersion medium in the present invention is preferably added in an amount of 25 to 35 parts by weight, more preferably 28 to 32 parts by weight, based on 100 parts by weight of the granular ceramic raw material.
- additives such as a binder, a crystal growth aid, and a pore former can be used.
- binder examples include water-soluble cellulose derivatives such as hydroxypropylmethylcellulose, hydroxypropylethylcellulose, methylcellulose, hydroxyethylcellulose, and carboxymethylcellulose, and polyvinyl alcohol.
- crystal growth aid examples include magnesia, silica, yttria, iron oxide, and the like.
- pore-forming agent include graphite, wheat flour, starch, phenolic resin, polyethylene terephthalate, and the like. be able to.
- kneading and extrusion in the present invention for example, after kneading using a vacuum kneader to obtain a cylindrical kneaded material, the kneaded material is extruded with a ram-type extruder to form a honeycomb structure. Can be mentioned.
- the effect of reducing the pressure applied to the ceramic raw material when extruding the kneaded clay and the heat generated in the ceramic raw material is great, Since each component in the raw material base can be rapidly homogenized, a continuous extrusion molding device such as a twin screw type, which has a high demand for these characteristics, is used.
- the shaping step is performed continuously. Thereby, a honeycomb structure can be manufactured with extremely high productivity.
- the steps after the extrusion molding are not particularly limited, and drying and baking may be performed under the conditions usually used.
- drying and baking may be performed under the conditions usually used.
- the degree of reduction in torque peak value and the formability of the formed body of the honeycomb structure were determined by the following method, and the effect of reducing the pressure generated in the ceramic raw material base and the formability of the honeycomb structure were obtained. Was evaluated.
- the raw material batches used in each of the examples and comparative examples were kneaded by a Banbury type kneader having a torque meter attached to the kneading blades, and the torque value applied to the kneading blades of the kneading machine when kneading was measured over time. Was measured. Also, using the same raw material batch as in each of the examples and comparative examples except that the dispersant was not added, the torque value applied to the kneading blades of the kneader when the raw material batch was kneaded was measured with time.
- the torque value rapidly increased immediately after starting the kneading of the raw material batch, and became a peak value in a short time, regardless of whether the dispersant was added or not. After that, it gradually decreases, and after a certain period of time, it becomes almost constant.
- the torque value is lower as a whole than when the dispersant is not added, and the torque value is most significantly reduced at the peak value.
- the degree of decrease ( ⁇ ) of the torque peak value is calculated by the following general formula (1).
- the effect of reducing the pressure generated in the raw material base was evaluated.
- Ta is the torque peak value at the time of kneading when using a ceramic raw material base to which a dispersing agent is added
- Tb is when using a ceramic raw material base without adding a dispersing agent. This is the peak torque value during kneading.
- the external shape was visually observed to evaluate the formability of the honeycomb structure.
- the evaluation was based on the following criteria.
- a granular cordierite-forming raw material composed of 39% by mass of talc, 15% by mass of kaolin, 15% by mass of calcined kaolin, 8% by mass of alumina, 17% by mass of aluminum hydroxide, and 6% by mass of silica was used.
- the dispersing agent is set to a temperature of 47 which is higher than the melting point of lauric acid (measured by a method according to JISK-0065) while stirring a 40% by mass aqueous solution of potassium hydroxide. 100 parts by weight of lauric acid was added to 16.8 parts by weight (in terms of solid content) and stirred to prepare a dispersant having a neutralization degree of 60%.
- the obtained ceramic raw material base is put into a twin-screw continuous extrusion molding apparatus, and the raw material base is kneaded and the obtained kneaded material is continuously extruded to form an 82-cam structure. Body manufactured.
- Table 1 and FIG. 2 show the degree of neutralization and the degree of decrease in torque peak value of the fatty acids used.
- the degree of neutralization of potassium laurate to be added as a dispersant to the granular cordierite-forming raw material is 70, 75, 80, 85, 90, 95, 97, 40, 55, 100, 115, 120, and 1, respectively.
- a formed body having a honeycomb structure was produced in the same manner as in Example 1 except that the formed body was adjusted to 30%.
- the degree of neutralization of the fatty acids and the degree of reduction in the torque peak value are summarized in Table 1 and FIG. (Examples 9 to 15 and Comparative Examples 7 to 14)
- Example 2 Except for using the dispersants shown in Table 2, a honeycomb structured body was manufactured in the same manner as in Example 1.
- Example 1 to 8 and Comparative Examples 1 to 6 In Examples 1 to 8 and Comparative Examples 1 to 6, as shown in Table 1, the degree of neutralization of potassium laurate added as a dispersant to the granular cordierite-forming raw material was determined at predetermined intervals up to 40 to 130%. The relationship between the degree of neutralization of the fatty acid salt and the degree of decrease in the torque peak value was examined under the same conditions except that the degree of neutralization was changed. A sharp change was observed in the degree of decrease in the torque peak value around 100% in degrees of saturation, and in Examples 1 to 8 in which the degree of neutralization was adjusted in the range of 58% to less than 100%, the degree of decrease in the torque peak value was 22%. It was confirmed that the effect of reducing the pressure applied to the raw material was great at 4 to 33.6%.
- Examples 9 to 15 and Comparative Example? Nos. 14 to 14 were obtained by examining the relationship between the degree of neutralization of the fatty acid salt, the degree of reduction in the torque peak value, and the moldability under the same conditions except that the fatty acid portion and the base portion of the fatty acid salt were changed. However, even when the fatty acid portion and the base portion of the fatty acid salt were changed, in Examples 9 to 15 in which the degree of neutralization of the fatty acid salt was adjusted in the range of 57% or more and less than 100%, the degree of decrease in the torque peak value was reduced. However, it was confirmed that the effect of reducing the pressure applied to the raw material material was large at 22 to 30%. Some of the compacts obtained in each of the examples showed small deformation, but not all. In each case, substantially good moldability was observed. Note that the greater the effect of reducing the pressure applied to the raw material base, the better the formability tends to be, and a correlation was found between the two.
- Comparative Examples 7 to 14 in which the degree of neutralization of the fatty acid salt was adjusted to a large value of less than 57% or 100% or more, the reduction in torque peak value was 18% or less, and the raw material base was It was recognized that the effect of reducing the pressure applied inside was small.
- deformation was observed in the obtained molded body, and in most of the comparative examples, large deformation was observed in the obtained molded body.
- a honeycomb structure excellent in formability can be manufactured with high productivity, and the load on the forming apparatus can be reduced to improve the durability of the apparatus.
- a method for manufacturing an 82 cam structure can be provided.
- a continuous extrusion molding apparatus is used because the effect of reducing the pressure applied to the raw material and the heat generated in the raw material is large, and each component in the raw material can be rapidly uniformed. In this case, it is possible to provide a particularly preferable method for manufacturing a honeycomb structure.
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DE60232231T DE60232231D1 (de) | 2001-03-29 | 2002-03-27 | Verfahren zur herstellung wabenförmiger strukturen |
EP02708682A EP1375450B1 (en) | 2001-03-29 | 2002-03-27 | Method for manufacturing honeycomb structure |
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JP2001-097698 | 2001-03-29 | ||
JP2001097698A JP3799240B2 (ja) | 2001-03-29 | 2001-03-29 | ハニカム構造体の製造方法 |
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US (1) | US20030151174A1 (ja) |
EP (1) | EP1375450B1 (ja) |
JP (1) | JP3799240B2 (ja) |
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US8663545B2 (en) | 2004-03-31 | 2014-03-04 | Ngk Insulators, Ltd. | Method of manufacturing honeycomb structure and honeycomb structure |
DE102006062140A1 (de) | 2006-12-22 | 2008-06-26 | Dow Wolff Cellulosics Gmbh | Celluloseetheradditive für die Extrusion keramischer Massen |
US8741209B2 (en) * | 2007-11-30 | 2014-06-03 | Corning Incorporated | Stabilizers for ceramic body extrusion |
US20090218711A1 (en) * | 2008-02-28 | 2009-09-03 | David Dasher | Method of increasing ceramic paste stiffening/gelation temperature by using a salt and precursor batch |
US20090274866A1 (en) * | 2008-04-30 | 2009-11-05 | Michelle Dawn Fabian | Ceramic article and method for making it |
US8696962B2 (en) * | 2011-09-16 | 2014-04-15 | Corning Incorporated | Methods for reducing defects in ceramic articles and precursors |
KR101670050B1 (ko) * | 2014-12-17 | 2016-10-31 | 한국에너지기술연구원 | 세라믹 모노리스 구조체의 제조방법 및 이러한 방법으로 제조된 세라믹 모노리스 구조체 |
DE112017001017B4 (de) | 2016-02-26 | 2021-11-11 | Ngk Insulators, Ltd. | Verfahren zur Herstellung einer Wabenstruktur |
JP6982555B2 (ja) | 2018-08-02 | 2021-12-17 | 日本碍子株式会社 | ハニカム構造体の製造方法 |
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- 2002-03-27 WO PCT/JP2002/002973 patent/WO2002079117A1/ja active Application Filing
- 2002-03-27 US US10/296,453 patent/US20030151174A1/en not_active Abandoned
- 2002-03-27 DE DE60232231T patent/DE60232231D1/de not_active Expired - Lifetime
- 2002-03-27 EP EP02708682A patent/EP1375450B1/en not_active Expired - Lifetime
- 2002-11-12 ZA ZA200209178A patent/ZA200209178B/en unknown
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JPH0281606A (ja) * | 1988-09-20 | 1990-03-22 | Ngk Insulators Ltd | セラミックハニカム構造体の製造法 |
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JP2001179720A (ja) * | 1999-12-22 | 2001-07-03 | Hitachi Metals Ltd | コージェライト質ハニカム構造体の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
JP2002292616A (ja) | 2002-10-09 |
JP3799240B2 (ja) | 2006-07-19 |
EP1375450A4 (en) | 2007-08-22 |
US20030151174A1 (en) | 2003-08-14 |
EP1375450A1 (en) | 2004-01-02 |
ZA200209178B (en) | 2003-11-12 |
EP1375450B1 (en) | 2009-05-06 |
DE60232231D1 (de) | 2009-06-18 |
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