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1. (WO2010114062) CERAMIC HONEYCOMB STRUCTURE AND PROCESS FOR PRODUCING SAME
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2010/114062 International Application No.: PCT/JP2010/055939
Publication Date: 07.10.2010 International Filing Date: 31.03.2010
IPC:
B01D 39/20 (2006.01) ,C04B 35/195 (2006.01) ,C04B 38/00 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
39
Filtering material for liquid or gaseous fluids
14
Other self-supporting filtering material
20
of inorganic material, e.g. asbestos paper or metallic filtering material of non-woven wires
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
35
Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
01
based on oxides
16
based on silicates other than clay
18
rich in aluminium oxide
195
Alkaline earth aluminosilicates, e.g. cordierite
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
38
Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
Applicants:
岡崎 俊二 OKAZAKI Shunji [JP/JP]; JP (UsOnly)
日立金属株式会社 HITACHI METALS, LTD. [JP/JP]; 東京都港区芝浦1丁目2-1 2-1, Shibaura 1-chome, Minato-ku, Tokyo 1058614, JP (AllExceptUS)
Inventors:
岡崎 俊二 OKAZAKI Shunji; JP
Agent:
高石 橘馬 TAKAISHI Kitsuma; 東京都新宿区神楽坂6丁目67 神楽坂FNビル5階 Kagurazaka FN Bldg. 5F, 67, Kagurazaka 6-chome, Shinjuku-ku, Tokyo 1620825, JP
Priority Data:
2009-08787231.03.2009JP
Title (EN) CERAMIC HONEYCOMB STRUCTURE AND PROCESS FOR PRODUCING SAME
(FR) STRUCTURE CÉRAMIQUE EN NID D'ABEILLE ET SON PROCÉDÉ DE FABRICATION
(JA) セラミックハニカム構造体及びその製造方法
Abstract:
(EN) A ceramic honeycomb structure characterized in that the ceramic honeycomb structure has a plurality of channels formed with porous partition walls, that the porous partition walls contain cordierite crystals, mullite crystals, and corundum crystals and/or spinel crystals, that with respect to the total of X-ray diffraction intensities of these crystals, the proportion of the X-ray diffraction intensity of the cordierite crystals is 72-85%, excluding 85%, the proportion of the X-ray diffraction intensity of the mullite crystals is 15-25%, and the proportion of the sum of the X-ray diffraction intensity of the corundum crystals and the X-ray diffraction intensity of the spinel crystals is 5% or lower, that the porous partition walls have a true density of 2.55-2.70 g/cm3, an average pore diameter of 10-20 µm, and a porosity of 50-65%, and that the porous partition walls have pores having a pore diameter exceeding 50 µm in a volume of 8-25% of the total pore volume, pores having a pore diameter less than 10 µm in a volume of 16-25% of the total pore volume, and a deviation of pore distribution, σ, of 0.5 or less.
(FR) Cette invention concerne une structure céramique en nid d'abeille caractérisée en ce que la structure céramique en nid d'abeille comporte plusieurs canaux formés avec des parois de séparation poreuses, en ce que les parois de séparation poreuses contiennent des cristaux de cordiérite, des cristaux de mullite, et des cristaux de corindon et/ou des cristaux de spinelle, en ce que par rapport au total des intensités de diffraction des rayons X de ces cristaux, la proportion de l'intensité de diffraction des rayons X des cristaux de cordiérite est supérieure ou égale à 72 % et inférieure strict à 85 %, la proportion de l'intensité de diffraction des rayons X des cristaux de mullite est comprise entre 15 et 25 %, et la proportion de la somme de l'intensité de diffraction des rayons X des cristaux de corindon et de l'intensité de diffraction des rayons X des cristaux de spinelle vaut 5 % ou moins, en ce que les parois de séparation poreuses ont une densité réelle comprise entre 2,55 et 2,70 g/cm3, un diamètre des pores moyen compris entre 10 et 20 µm, et une porosité comprise entre 50 et 65 %, et en ce que les parois de séparation poreuses ont des pores dont le diamètre dépasse 50 µm dans un volume de 8 à 25 % du volume total des pores, les pores ayant un diamètre inférieur à 10 µm dans un volume de 16 à 25 % du volume total des pores, et un écart de répartition des pores, σ, de 0,5 ou moins.
(JA)  多孔質隔壁によって形成された多数の流路をし、前記多孔質隔壁が、コーディエライト結晶と、ムライト結晶と、コランダム結晶及び/又はスピネル結晶とを含み、これらの各結晶のX線回折強度の合計に対して、コーディエライト結晶のX線回折強度の割合が72%以上85%未満、ムライト結晶のX線回折強度の割合が15~25%、並びにコランダム結晶及びスピネル結晶の各X線回折強度の和の割合が5%以下であり、前記多孔質隔壁の真密度が2.55~2.70 g/cm3、平均細孔径が10~20μm、気孔率が50~65%、細孔径50μmを超える細孔容積が全細孔容積の8~25%、細孔径10μm未満の細孔容積が全細孔容積の16~25%、及び細孔分布偏差σが0.5以下であることを特徴とするセラミックハニカム構造体。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)