Coating compositions which include a blend of a fluorochemical and a particulate additive comprising a bimodal size distribution of inorganic nanoparticles are provided. The bimodal distribution of inorganic nanoparticles may include a quantity of smaller nanoparticles having an average size distribution of between about 1 to about 15 nm, and a quantity of larger nanoparticles having an average size distribution of between about 40 to about 500 nm. The smaller and larger nanoparticles may be present in a ratio of the smaller sized particles to the larger sized particles of at least 1.2, with the total amount of nanoparticles being present in an amount of between about 0.1 to about 10 wt. % based on total composition weight.

This invention provides a hybrid nano-filament composition for use as an electrochemical cell electrode. The composition comprises: (a) an aggregate of nanometer-scaled, electrically conductive filaments that are substantially interconnected, intersected, or percolated to form a porous, electrically conductive filament network comprising substantially interconnected pores, wherein the filaments have an elongate dimension and a first transverse dimension with the first transverse dimension being less than 500 nm (preferably less than 100 nm) and an aspect ratio of the elongate dimension to the first transverse dimension greater than 10; and (b) micron- or nanometer-scaled coating that is deposited on a surface of the filaments, wherein the coating comprises an anode active material capable of absorbing and desorbing lithium ions and the coating has a thickness less than 20 m (preferably less than 1 m). Also provided is a lithium ion battery comprising such an electrode as an anode. The battery exhibits an exceptionally high specific capacity, an excellent reversible capacity, and a long cycle life.

This invention provides a hybrid nano-filament composition for use as an electrochemical cell electrode. The composition comprises: (a) an aggregate of nanometer-scaled, electrically conductive filaments that are substantially interconnected, intersected, or percolated to form a porous, electrically conductive filament network comprising substantially interconnected pores, wherein the filaments have an elongate dimension and a first transverse dimension with the first transverse dimension being less than 500 nm (preferably less than 100 nm) and an aspect ratio of the elongate dimension to the first transverse dimension greater than 10; and (b) micron- or nanometer-scaled coating that is deposited on a surface of the filaments, wherein the coating comprises an anode active material capable of absorbing and desorbing lithium ions and the coating has a thickness less than 20 m (preferably less than 1 m). Also provided is a lithium ion battery comprising such an electrode as an anode. The battery exhibits an exceptionally high specific capacity, an excellent reversible capacity, and a long cycle life.

A filtration member for an antiviral air filter, having an upstream fiber layer for which the contact angle with respect to water is 60 or less, and a downstream fiber layer for which the contact angle with respect to water is 90 or greater, wherein the filtration member has an antiviral agent and a dispersant either on the upstream fiber layer or on the upstream-fiber-layer-side surface of the downstream fiber layer, and the solid fraction mass ratio of the antiviral agent and the dispersant ((mass of solid fraction of antiviral agent)/(mass of solid fraction of dispersant)) is 0.20-5.0.

The present invention provides a filtration member for an antiviral air filter in which the dust collection performance of the filter is ensured, and the amount of antiviral agent adhering to the filter is reduced and a high virus inactivation rate is achieved irrespective of changes in the environment around the filter.

A filtration member for an antiviral air filter, having an upstream fiber layer for which the contact angle with respect to water is 60 or less, and a downstream fiber layer for which the contact angle with respect to water is 90 or greater, wherein the filtration member has an antiviral agent and a dispersant either on the upstream fiber layer or on the upstream-fiber-layer-side surface of the downstream fiber layer, and the solid fraction mass ratio of the antiviral agent and the dispersant ((mass of solid fraction of antiviral agent)/(mass of solid fraction of dispersant)) is 0.20-5.0.

The present invention provides a filtration member for an antiviral air filter in which the dust collection performance of the filter is ensured, and the amount of antiviral agent adhering to the filter is reduced and a high virus inactivation rate is achieved irrespective of changes in the environment around the filter.

A biocidal and photoluminescent treatment of viscose fibre immediately following the addition of carbon disulfide in the conversion of cellulose into viscose (xanthation), which comprises a biocidal composition and an additive that allows the presence thereof to be identified by a luminescent effect, wherein the biocidal composition is added in an amount of 0.1-5 wt % of the material and comprises 3-5% phosphate glass with silver, 1-3.5% silicone, 0.1-0.3% aliphatic hydrocarbons and 90-95% water, and the luminescent additive is added in an amount of 0.1-5 wt % of the material and comprises 20-40% silica gel, 10-30% alumina gel, 30-50% calcium fluoride, 0.5-3% erbium (III) fluoride, 5-15% ytterbium (III) fluoride, a maximum of 5% thulium (III) fluoride and a maximum of 1% europium (III) fluoride, with respect to the total weight of the luminescent additive.

A method of fabricating a composite component is provided. The method includes forming a fibrous preform, performing a first densification on the fibrous preform to generate a densified fibrous preform, heat treating the densified fibrous preform to form a heat treated densified fibrous preform, performing a second densification on the heat treated densified fibrous preform, and performing a silicon melt infiltration after densifying the heat treated densified fibrous preform to form the composite component.

A method of fabricating a composite component is provided. The method includes forming a fibrous preform, performing a first densification on the fibrous preform to generate a densified fibrous preform, heat treating the densified fibrous preform to form a heat treated densified fibrous preform, performing a second densification on the heat treated densified fibrous preform, and performing a silicon melt infiltration after densifying the heat treated densified fibrous preform to form the composite component.