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1. WO2009017642 - COMPOSITIONS FOR APPLYING TO CERAMIC HONEYCOMB BODIES

Publication Number WO/2009/017642
Publication Date 05.02.2009
International Application No. PCT/US2008/008949
International Filing Date 22.07.2008
IPC
C04B 28/00 2006.1
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
28Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
C04B 28/24 2006.1
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
28Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
24containing alkyl ammonium or alkali metal silicates; containing silica sols
C04B 35/185 2006.1
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
35Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
01based on oxides
16based on silicates other than clay
18rich in aluminium oxide
185Mullite
C04B 35/195 2006.1
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
35Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
01based on oxides
16based on silicates other than clay
18rich in aluminium oxide
195Alkaline earth aluminosilicates, e.g. cordierite
C04B 35/478 2006.1
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
35Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
01based on oxides
46based on titanium oxides or titanates
462based on titanates
478based on aluminium titanates
C04B 38/00 2006.1
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
38Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
CPC
B01D 2279/30
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2279Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
30for treatment of exhaust gases from IC Engines
C04B 2111/00793
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2111Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
00474Uses not provided for elsewhere in C04B2111/00
00793as filters or diaphragms
C04B 2201/10
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2201Mortars, concrete or artificial stone characterised by specific physical values
10for the viscosity
C04B 2235/3206
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2235Aspects relating to ceramic starting mixtures or sintered ceramic products
02Composition of constituents of the starting material or of secondary phases of the final product
30Constituents and secondary phases not being of a fibrous nature
32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
3205Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
3206Magnesium oxides or oxide-forming salts thereof
C04B 2235/3217
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2235Aspects relating to ceramic starting mixtures or sintered ceramic products
02Composition of constituents of the starting material or of secondary phases of the final product
30Constituents and secondary phases not being of a fibrous nature
32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
3217Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
C04B 2235/3234
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2235Aspects relating to ceramic starting mixtures or sintered ceramic products
02Composition of constituents of the starting material or of secondary phases of the final product
30Constituents and secondary phases not being of a fibrous nature
32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
3231Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
3232Titanium oxides or titanates, e.g. rutile or anatase
3234Titanates, not containing zirconia
Applicants
  • CORNING INCORPORATED [US]/[US] (AllExceptUS)
  • BOOKBINDER, Dana, C. [US]/[US] (UsOnly)
  • GRIFFIN, James, A. Jr. [US]/[US] (UsOnly)
  • TENNENT, David, L. [US]/[US] (UsOnly)
  • WU, Lung-Ming [US]/[US] (UsOnly)
Inventors
  • BOOKBINDER, Dana, C.
  • GRIFFIN, James, A. Jr.
  • TENNENT, David, L.
  • WU, Lung-Ming
Agents
  • HOMA, Joseph, M.
Priority Data
60/962,71531.07.2007US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) COMPOSITIONS FOR APPLYING TO CERAMIC HONEYCOMB BODIES
(FR) COMPOSITIONS POUR L'APPLICATION À DES CORPS EN NID D'ABEILLES EN CÉRAMIQUE
Abstract
(EN) Disclosed are compositions for applying to honeycomb bodies. The compositions can be used as plugging mixtures for forming a ceramic wall flow filter. Alternatively, the compositions can be used to form skin coatings on exterior portions of a honeycomb body. The disclosed compositions include an inorganic powder batch composition, an organic binder, a liquid vehicle, and a rheology modifier. The compositions exhibit improved rheological properties, including an increased yield strength and reduced viscosity under shear, which, among various embodiments, can enable the manufacture of sintered phase end plugs having reduced levels of dimple and pinhole formations in the final dried and fired end plugs as well as end plugs having relatively uniform and desired depths. Also disclosed are methods for forming end plugged ceramic wall flow filters from the plugging mixtures disclosed herein.
(FR) L'invention porte sur des compositions pour l'application à des corps en nid d'abeilles. Les compositions peuvent être utilisées comme mélanges de bouchage pour former un filtre d'écoulement à paroi en céramique. En variante, les compositions peuvent être utilisées pour former des revêtements de peau sur des parties extérieures d'un corps en nid d'abeilles. Les compositions décrites comprennent une composition de poudre inorganique, un liant organique, un véhicule liquide, et un agent de modification de rhéologie. Les compositions présentent des propriétés rhéologiques améliorées, comprenant une limite élastique accrue et une viscosité réduite vis-à-vis du cisaillement, qui, parmi différents modes de réalisation, peuvent permettre la fabrication de bouchons d'extrémité à phase frittée ayant des niveaux réduits de formation de bosses et de trous d'aiguille dans les bouchons d'extrémité séchés et calcinés finaux, ainsi que des bouchons d'extrémité ayant des profondeurs relativement uniformes et désirées. L'invention porte également sur des procédés pour former des filtres d'écoulement à paroi en céramique à bouchons d'extrémité à partir des mélanges de bouchage décrits ici.
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