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A composite porous media for either gas or liquid flow is strong and efficient, and can readily be formed in or into a wide range of different shapes and configurations. In particular, the porous media is a composite of a metal, aerogel or ceramic foam (i.e., a reticulated inter-cellular structure i

A composite porous media for either gas or liquid flow is strong and efficient, and can readily be formed in or into a wide range of different shapes and configurations. In particular, the porous media is a composite of a metal, aerogel or ceramic foam (i.e., a reticulated inter-cellular structure in which the interior cells are interconnected to provide a multiplicity of pores passing through the volume of the structure, the walls of the cells themselves being substantially continuous and non-porous, and the volume of the cells relative to that of the material forming the cell walls being such that the overall density of the intercellular structure is less than about 30 percent theoretical density) the through pores of which are impregnated with a sintered powder or aerogel. The thickness, density, porosity and porous characteristics of the final composite porous media can be varied to conform with what is demanded by the intended use.

대표청구항 ▼

A composite porous media for either gas or liquid flow is strong and efficient, and can readily be formed in or into a wide range of different shapes and configurations. In particular, the porous media is a composite of a metal, aerogel or ceramic foam (i.e., a reticulated inter-cellular structure i

A composite porous media for either gas or liquid flow is strong and efficient, and can readily be formed in or into a wide range of different shapes and configurations. In particular, the porous media is a composite of a metal, aerogel or ceramic foam (i.e., a reticulated inter-cellular structure in which the interior cells are interconnected to provide a multiplicity of pores passing through the volume of the structure, the walls of the cells themselves being substantially continuous and non-porous, and the volume of the cells relative to that of the material forming the cell walls being such that the overall density of the intercellular structure is less than about 30 percent theoretical density) the through pores of which are impregnated with a sintered powder or aerogel. The thickness, density, porosity and porous characteristics of the final composite porous media can be varied to conform with what is demanded by the intended use. n atoms, or a heteroaryl group comprising in its basic structure 4 to 24 carbon atoms and at least one heteroatom selected from the group consisting of sulfur, oxygen, and nitrogen, said aryl or heteroaryl group's basic structure optionally being substituted by at least one substituent selected from the group consisting of a linear or branched alkyl comprising 1 to 12 carbon atoms, a linear or branched alkoxy comprising 1 to 12 carbon atoms, a halogen, and a hydroxy; R4and R5,which are identical or different, independently represent a hydrogen, a hydroxy, or a linear or branched alkyl group comprising 1 to 6 carbon atoms, or R4and R5together form an oxo group (=O); R1and R2,which are identical or different, independently are: hydrogen, a linear or branched alkyl group comprising from 1 to 12 carbon atoms, a cycloalkyl group comprising from 3 to 12 carbon atoms, an aryl group comprising in its basic structure 6 to 24 carbon atoms or a heteroaryl group comprising in its basic structure 4 to 24 carbon atoms and at least one heteroatom selected from the group consisting of sulfur, oxygen, and nitrogen, said aryl or heteroaryl group's basic structure optionally being substituted with at least one substituent selected from the group consisting of: a halogen, a hydroxy, a linear or branched alkyl group comprising from 1 to 12 carbon atoms, a linear or branched alkoxy group comprising from 1 to 12 carbon atoms, a haloalkyl or haloalkoxy group corresponding respectively to the above (C1-C12)alkyl or (C1-C12)alkoxy groups substituted with at least one halogen atom, a phenoxy or naphthoxy group optionally substituted with at least one linear or branched alkyl or alkoxy group comprising from 1 to 12 carbon atoms, a linear or branched alkenyl group comprising from 2 to 12 carbon atoms, an --NH2group, an --NHR group, wherein R is a linear or branched alkyl group comprising from 1 to 6 carbon atoms or a phenyl group optionally substituted by at least one linear or branched alkyl comprising from 1 to 6 carbon atoms, a group having the formula: wherein R' and R", identical or different, independently represent a linear or branched alkyl group comprising from 1 to 6 carbon atoms or a phenyl group optionally substituted with at least one linear or branched alkyl comprising 1 to 6 carbon atoms, or R' and R", together with the nitrogen atom to which they are bonded, represent a 5- to 7-membered ring which optionally comprises at least one other heteroatom selected from the group consisting of oxygen, sulfur, and nitrogen, said nitrogen optionally being substituted with a group R'", which is a linear or branched alkyl group comprising from 1 to 6 carbon atoms, and a methacryloyl group or an acryloyl group, or an aralkyl or heteroaralkyl group in which the alkyl part is linear or branched and comprises from 1 to 4 carbon atoms and in which the aryl or heteroaryl part is as defined above for the aryl or heteroaryl group, or said two substituents R1and R2together form an adamantyl, norbornyl, fluorenylidene, di(C1-C6)alkylanthracenylidene, or spiro(C5-C6)cycloalkylanthracenylidene group, said group being optionally substituted with at least one of the substituents listed above for R1and R2as an aryl or heteroaryl group; R3,which are identical or different, independently are: a halogen, a hydroxy, a linear or branched alkyl group comprising from 1 to 12 carbon atoms, a cycloalkyl group comprising from 3 to 12 carbon atoms, a linear or branched alkoxy group comprising from 1 to 12 carbon atoms, a haloalkyl, halocycloalkyl, or haloalkoxy group corresponding respectively to the above alkyl, cycloalkyl, and alkoxy groups substituted with at least one halogen atom, an aryl or heteroaryl group