The invention relates to a material in the form of a cellular solid monolith consisting of an inorganic oxide polymer. Said monolith comprises macropores which have an average size d.sub.A of 4 μm to 50 μm, mesopores that have an average size d.sub.E of 20 to 30 Å, and micropores which have an average size d.sub.1 of 5 à 10 Å, said pores being interconnected. The inorganic oxide polymer has organic groups R of formula —(CH.sub.2).sub.n—R.sup.1, wherein 0≤n≤5, and R.sup.1 is selected from among a thiol group, a pyrrole group, an amino group having one or more optional, optionally substituted alkyl, alkylamino, or aryl substituents, an alkyl group, or a phenyl group optionally having an alkyl-type substituent R.sup.2. The disclosed material can be used as a substrate for a metal catalyst and for decontaminating liquid or gaseous media.

Filtration articles herein exhibit excellent filtration efficiency and pressure drop before and after water durability testing. The articles comprise: a honeycomb filter body; inorganic deposits disposed within the honeycomb filter body at a loading of less than or equal to 20 grams of the inorganic deposits per liter of the honeycomb filter body. The inorganic deposits are comprised of refractory inorganic nanoparticles bound by a high temperature binder comprising one or more inorganic components. At least a portion of the inorganic deposits form a porous inorganic network over portions of inlet walls of the honeycomb filter body.

A filter has a primary structure composed of a first material with a relatively high melting point; a secondary structure composed of a second material with a lower melting point than the first material; and voids. This configuration provides the filter with controllable breathability. A gas-adsorption device including the filter can control the gas permeability rate. A vacuum insulation material including the gas-adsorption device enables the gas adsorber to selectively adsorb non-condensable gas from water-vapor-containing gas. As a result, the vacuum insulation material can be maintained at low pressure for a long period of time, thereby maintaining high insulation performance.

The present invention provides a preparation method for a high-performance water infiltration resisting material. Components of the water infiltration resisting material are mixed by the following weight ratio: wherein the content of ammonia silicate is 2.0-7.0 wt %, the content of sodium ethylsiliconate is 1.2-20.5 wt %, the content of polyacrylate-diatomite is 6.0-13.0 wt %, the content of sandy soil is 15.0-40.0 wt %, the content of coarse sand is 4.0-12.0 wt %, the content of calcia is 6.0-17.0 wt %, the content of cement is 30.0-50.0 wt %, and the content of additive is 0.02-0.09 wt %. The present invention can be used in dams, baths, pools, basements, building roofs and other fields of water infiltration resisting, and has the characteristics of high resistance to water infiltration, long effective water resistance time, being non-toxic and harmless, and convenient use.

A honeycomb body having a porous ceramic honeycomb structure with a first end, a second end, and a plurality of walls having wall surfaces defining a plurality of inner channels. A highly porous layer is disposed on one or more of the wall surfaces of the honeycomb body. The highly porous layer has a porosity greater than 90%, and has an average thickness of greater than or equal to 0.5 μm and less than or equal to 10 μm. A method of making a honeycomb body includes depositing a layer precursor on a ceramic honeycomb body and binding the layer precursor to the ceramic honeycomb body to form the highly porous layer.

Disclosed are ceramic bodies comprised of composite cordierite-mullite-aluminum magnesium titanate (CMAT) ceramic compositions having high cordierite-to-mullite ratio and methods for the manufacture of same.

Provided is a method of producing a film-coated cylindrical honeycomb structure formed with a coating liquid on an outer portion of a cylindrical honeycomb structure including partition walls and the outer portion, the partition walls forming a plurality of cells, the outer portion serving as a circumferential side. In the method, the cylindrical honeycomb structure is mounted between at least two rollers such that the circumferential side of the cylindrical honeycomb structure contacts with circumferential sides of the rollers, the coating liquid supplied from an application part is deposited on the cylindrical honeycomb structure while being rotated, and then the deposited coating liquid is dried or cured to form the film on the outer portion.

The present invention relates to a wall-flow filter, to a method for the production and the use thereof in order to reduce harmful exhaust gases of an internal combustion engine. The wall-flow filter was produced by applying a powder-gas aerosol to the filter, whereby the powder was deposited in the pores of the wall-flow filter.

A water-treating ceramic filter unit comprising a filter having pluralities of flow paths partitioned by porous ceramic cell walls and plugs alternately sealing the one-side or other-side ends of the flow paths; a housing containing the filter such that water to be treated is supplied from one end of the filter, and that the treated water is discharged from the other end of the filter; and seal members disposed on the outer edge portions of both end surfaces of the filter for longitudinally sandwiching and fixing the filter to the housing; the maximum of a gap between a side surface of the filter and the housing being equal to or less than the equivalent diameter of the flow paths.

A honeycomb structure includes honeycomb segments, bonding layers and a circumferential wall. The bonding layers include bottomed-hollow voids which extend toward an internal side in an axial direction from an end face of the honeycomb structure and which are formed at at least one of intersections, and a ratio of a depth of each void in the axial direction to a length of each honeycomb segment in the axial direction is 5% or more.