Patent application number | Description | Published |
20100216634 | METHOD FOR MANUFACTURING HONEYCOMB STRUCTURE - A method for manufacturing a honeycomb structure includes molding a wet mixture containing an aluminum titanate powdery material to form a honeycomb molded body. The aluminum titanate powdery material contains about 40% to about 60% by mass of Al | 08-26-2010 |
20100222213 | HONEYCOMB STRUCTURE - A honeycomb structure includes aluminum titanate, cell walls, and pore portions. The cell walls extend along a longitudinal direction of the honeycomb structure to define cells between the cell walls. The pore portions have an average pore diameter of about 10 μm to about 20 μm. A length of a longest pore portion among the pore portions in a binary image including substrate portions and the pore portions is about 8 times or less of the average pore diameter. The binary image is converted from a microscopic image of a cross section of the cell walls in parallel with the longitudinal direction. The length is measured along a line drawn in a direction perpendicular to a thickness direction of the cell walls. | 09-02-2010 |
20100247406 | HONEYCOMB STRUCTURE - A honeycomb structure includes aluminum titanate and cell walls. The cell walls extend along a longitudinal direction of the honeycomb structure to form a plurality of cells between the cell walls. A porosity of the honeycomb structure is from about 40% to about 60%. In a binary image of substrate portions and pore portions of each of the cell walls, an area ratio (%) of the pore portions to a whole area in a rectangularly-divided image is in a range from (the porosity−about 25%) to (the porosity+about 25%). The binary image is converted from a microscopic image of a cross section of each of the cell walls in parallel with the longitudinal direction. The rectangularly-divided image is formed by dividing the binary image in a direction parallel to a thickness direction of each of the cell walls at a predetermined width. | 09-30-2010 |
20100248951 | HONEYCOMB STRUCTURE AND METHOD FOR MANUFACTURING HONEYCOMB STRUCTURE - A honeycomb structure includes cells and aluminum titanate. The cells are provided substantially in parallel with one another in a longitudinal direction of the honeycomb structure. The cells are each sealed at either one end. The aluminum titanate includes about 40% to about 60% by mass of Al | 09-30-2010 |
Patent application number | Description | Published |
20140314987 | METHOD FOR MANUFACTURING ALUMINUM-TITANATE-BASED CERAMIC HONEYCOMB STRUCTURE - A method for manufacturing a ceramic honeycomb structure includes kneading titania particles, alumina particles and binder ingredient such that raw material paste including the titania particles, alumina particles and binder ingredient is prepared, forming a body made of the raw material paste and having a honeycomb structure such that the body has the honeycomb structure having through-holes extending in the longitudinal direction of the body and partition portions between the through-holes, positioning on a base having zirconia granules the body made of the raw material paste and having the honeycomb structure such that the zirconia are interposed between the body and the base, and sintering the body made of the raw material paste and having the honeycomb structure on the base with the zirconia granules interposed between the body and the base such that a ceramic body having the honeycomb structure is formed on the base with the zirconia granules. | 10-23-2014 |
20140314988 | METHOD FOR MANUFACTURING ALUMINUM-TITANATE-BASED CERAMIC HONEYCOMB STRUCTURE - A method for manufacturing a ceramic honeycomb structure includes kneading titania particles, alumina particles and binder ingredient such that raw material paste including the titania particles, alumina particles and binder ingredient is prepared, forming a body made of the raw material paste and having a honeycomb structure such that the body has the honeycomb structure having through-holes extending in the longitudinal direction of the body and partition portions between the through-holes, positioning the body on a base such that one end surface of the body in the longitudinal direction faces the base and a space is formed between the base and the end surface of the body, and sintering under oxygen atmosphere the body on the base with the space between the base and the body such that a ceramic body having the honeycomb structure is formed on the base. | 10-23-2014 |
20140363617 | METHOD FOR MANUFACTURING ALUMINUM-TITANATE-BASED CERAMIC HONEYCOMB STRUCTURE - A method for manufacturing a ceramic honeycomb structure includes kneading titania particles, alumina particles and a binder such that a raw material paste containing the titania particles, the alumina particles and the binder is prepared, forming a body made of the raw material paste and having the honeycomb structure, and sintering the body having the honeycomb structure such that a ceramic body having the honeycomb structure and made of aluminum titanate is formed. The kneading includes combining the binder, a titania powder containing the titania particles and an alumina powder containing the alumina particles, and the titania powder includes sodium in an amount of from 200 ppm to 1,000 ppm with respect to the titania powder in a weight ratio based on conversion from Na | 12-11-2014 |
20140363618 | METHOD FOR MANUFACTURING ALUMINUM-TITANATE-BASED CERAMIC HONEYCOMB STRUCTURE - A method for manufacturing a ceramic honeycomb structure includes kneading titania particles, alumina particles and a binder such that a raw material paste containing the titania particles, the alumina particles and the binder is prepared, forming a body made of the raw material paste and having the honeycomb structure, and sintering the body having the honeycomb structure such that a ceramic body having the honeycomb structure and made of aluminum titanate is formed. The kneading includes combining the binder, a titania powder containing the titania particles and an alumina powder containing the alumina particles, and the titania powder includes potassium in an amount of from 100 ppm to 600 ppm with respect to the titania powder in a weight ratio based on conversion from K | 12-11-2014 |
20140363619 | METHOD FOR MANUFACTURING ALUMINUM-TITANATE-BASED CERAMIC HONEYCOMB STRUCTURE - A method for manufacturing a ceramic honeycomb structure includes kneading titania particles, alumina particles and a binder such that a raw material paste containing the titania particles, the alumina particles and the binder is prepared, forming a body made of the raw material paste and having the honeycomb structure, and sintering the body having the honeycomb structure such that a ceramic body having the honeycomb structure and made of aluminum titanate is formed. The kneading includes combining the binder, a titania powder containing the titania particles and an alumina powder containing the alumina particles, and the titania powder includes magnesium in an amount of 500 ppm or less with respect to the titania powder in a weight ratio based on conversion from MgO. | 12-11-2014 |
20140363620 | METHOD FOR MANUFACTURING ALUMINUM-TITANATE-BASED CERAMIC HONEYCOMB STRUCTURE - A method for manufacturing a ceramic honeycomb structure includes kneading titania particles, alumina particles and a binder such that a raw material paste containing the titania particles, the alumina particles and the binder is prepared, forming a body made of the raw material paste and having the honeycomb structure, and sintering the body having the honeycomb structure such that a ceramic body having the honeycomb structure and made of aluminum titanate is formed. The titania particles are secondary titania particles each comprising primary titania particles aggregated such that the secondary titania particles have a mean volume particle diameter in the range of from 5 μm to 20 μm, and the alumina particles have a mean volume particle diameter in the range of from 2 μm to 5 μm. | 12-11-2014 |
20150050451 | METHOD FOR MANUFACTURING ALUMINUM-TITANATE-BASED CERAMIC HONEYCOMB STRUCTURE - A method for manufacturing a ceramic honeycomb structure includes kneading titania particles, alumina particles and a binder ingredient such that raw material paste including the titania particles, alumina particles and binder ingredient is prepared, forming a body made of the raw material paste and having a honeycomb structure such that the body has the honeycomb structure having through-holes extending in the longitudinal direction of the body and partitions formed between the through-holes, immersing each of end portions of the body in the longitudinal direction into a sealant slurry heated at a temperature in the range of from 50° C. to 100° C. such that the sealant slurry infiltrates into the through-holes at one of the end portions of the body and seals either end of each of the through-holes of the body, and sintering the body having the honeycomb structure such that a ceramic body having the honeycomb structure is formed. | 02-19-2015 |