Abstract:
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.
Abstract:
A method of making an antimicrobial composite article, including the steps: providing a matrix comprising a polymeric material; providing a plurality of second phase particles comprising an antimicrobial agent; melting the matrix to form a matrix melt; distributing the plurality of second phase particles in the matrix melt at a second phase volume fraction to form a composite melt; forming a composite article from the composite melt; and treating the composite article to form an antimicrobial composite article having an exterior surface comprising an exposed portion of the matrix and the plurality of second phase particles. The distributing step can employ an extrusion process. The forming a composite article step can employ an injection molding process. The treating step can employ abrading and plasma-treating the article to define the exterior surface.
Abstract:
A method of making an antimicrobial composite article, including the steps: providing a matrix comprising a polymeric material; providing a plurality of second phase particles comprising an antimicrobial agent; melting the matrix to form a matrix melt; distributing the plurality of second phase particles in the matrix melt at a second phase volume fraction to form a composite melt; forming a composite article from the composite melt; and treating the composite article to form an antimicrobial composite article having an exterior surface comprising an exposed portion of the matrix and the plurality of second phase particles. The distributing step can employ an extrusion process. The forming a composite article step can employ an injection molding process. The treating step can employ abrading and plasma-treating the article to define the exterior surface.
Abstract:
Embodiments of the present invention pertain to antimicrobial glass compositions, glasses and articles. The articles include a glass, which may include a glass phase and a cuprite phase. In other embodiments, the glasses include as plurality of Cu1+ ions, a degradable phase including B2O3, P2O5 and K2O and a durable phase including SiO2. Other embodiments include glasses having a plurality of Cu1+ ions disposed on the surface of the glass and in the glass network and/or the glass matrix. The article may also include a polymer. The glasses and articles disclosed herein exhibit a 2 log reduction or greater in a concentration of at least one of Staphylococcus aureus, Enterobacter aerogenes, Pseudomonas aeruginosa bacteria, Methicillin Resistant Staphylococcus aureus, and E. coli, under the EPA Test Method for Efficacy of Copper Alloy as a Sanitizer testing conditions and under Modified JIS Z 2801 for Bacteria testing conditions. In some embodiments, the glass and articles exhibit a 2 log reduction or greater in a concentration of Murine Norovirus under Modified JIS Z 2801 Test for Viruses testing conditions.
Abstract:
A sorbent article having a substrate having porous channel walls defining open channels, and an organic-inorganic hybrid sorbent material distributed on a surface of the porous channel walls, wherein the sorbent material is derived from an amino-functionalized alkoxysilane and a polyamine, wherein the sorbent material is present in an amount equal to or greater than 10 g/l, wherein at least some of the sorbent material resides in the porous channel walls and forms CO2 adsorption sites within the interior of the porous channel walls. The article may be useful, for example, for removing CO2 from a gas.
Abstract:
The present invention relates generally to mercaptofunctional high μβ EO chromophores and EO polymers, and particularly to mercaptofunctional high μβ EO chromophores and EO polymers useful for making electro-optical devices and systems. Mercaptofunctional high μβ EO chromophores are covalently bonded to poly(imido sulfide) polymers producing high Tg, low optical loss, covalently bonded, high μβ EO chromophore containing polymers. Methods of synthesizing these EO materials using mild polymerization conditions are also described.
Abstract:
The present invention relates generally to mercaptofunctional high μβ EO chromophores and EO polymers, and particularly to mercaptofunctional high μβ EO chromophores and EO polymers useful for making electro-optical devices and systems. Mercaptofunctional high μβ EO chromophores are covalently bonded to poly(imido sulfide) polymers producing high Tg, low optical loss, covalently bonded, high μβ EO chromophore containing polymers. Methods of synthesizing these EO materials using mild polymerization conditions are also described.
Abstract:
A sorbent article having a substrate having porous channel walls defining open channels, and an organic-inorganic hybrid sorbent material distributed on a surface of the porous channel walls, wherein the sorbent material is derived from an amino-functionalized alkoxysilane and a polyamine, wherein the sorbent material is present in an amount equal to or greater than 10 g/l, wherein at least some of the sorbent material resides in the porous channel walls and forms CO2 adsorption sites within the interior of the porous channel walls. The article may be useful, for example, for removing CO2 from a gas.
Abstract:
Porous structures are made from compositions that include hollow glass bodies and an inorganic powder. The inorganic powder may act as a rigid frame member, a crystallization agent, or both, which reduces the shrinkage of the porous structures during firing. The porous structures made therefrom have an open porosity of greater than 70% and reduced shrinkage of less than 10% compared to the green structures prior to firing. Methods for firing the green structures made from the compositions are also disclosed, the firing methods including reducing a temperature ramping rate of the green structures during a crystallization temperature range of the glass of the hollow bodies.
Abstract:
A filtration article having a honeycomb filter body that includes a plurality of intersecting porous walls including surfaces that define a plurality of channels extending in a longitudinal direction from an inlet end to an outlet end. The plurality of channels includes inlet channels that are open at the inlet end and sealed at locations longitudinally spaced away from the inlet end, and outlet channels that are open at the outlet end and sealed at locations longitudinally spaced away from the outlet end. Inorganic deposits are disposed on, or in, or both on and in, at least some of the walls. The inorganic deposits are bound to each other, to the walls, or to both, by a silicon-containing precursor binder.