Abstract: A shelter coating comprising a photocatalyst capable of generating singlet oxygen from ambient air. The shelter coating may optionally include a singlet oxygen scavenger.

Abstract: A powder injection molding composition is disclosed. The composition comprises caprolactam and a plurality of particles, where that plurality of particles is selected from a metal powder, a metal hydride powder, a ceramic powder, a ferrite powder, and mixtures thereof. The composition optionally firther comprises a wax and polymeric material.

Abstract: An powder injection molding composition is disclosed. The composition comprises caprolactam and a plurality of particles, where that plurality of particles is selected from a metal powder, a metal hydride powder, a ceramic powder, a ferrite powder, and mixtures thereof. The composition optionally further comprises a wax and polymeric material.

Abstract: A membrane filter washing method is provided using a wash solution containing a determined concentration of a leaching agent.

Abstract: Lapping compositions are disclosed which comprise a fluid useful during a process to shape the surface of a substrate, where that process includes contacting a target surface of the substrate with one or more abrasives while also contacting that target surface with the lapping composition.

Abstract: A shelter coating comprising polyvinyl alcohol and polyethyleneimine is disclosed. The shelter coating may optionally further include a photocatalyst capable of generating singlet oxygen from ambient air. The shelter coating may optionally include a singlet oxygen scavenger.

Abstract: The present invention is directed to various sets of unit operations for treating aqueous effluents and logic for designing and effecting the treatment. The unit operations include stabilization of subterranean waters, sequential oxidation steps to alter selected target materials, oxidation to break up emulsions prior to removal of the emulsion components, and intense oxidation to break up difficult-to-remove organic target materials.

Abstract: Lapping compositions which do not comprise water are disclosed, wherein those lapping compositions comprise a non-aqueous fluid, and wherein the lapping compositions are useful during a process to shape the surface of a substrate, wherein that process includes contacting a target surface of the substrate with one or more abrasives while also contacting that target surface with the lapping composition.

Abstract: The present invention relates to the fabrication of low cost, in situ, porous metallic, ceramic and cermet foam structures having improved mechanical properties such as energy absorption and specific stiffness. Methods of fabricating the structures from compositions including ceramic and/or metallic powders are provided. The flowable compositions also include an immiscible phase that results in pores within the final structure. Furthermore, the structures may be shaped to have external porosity, such as with mesh-like structures.

Abstract: The present invention relates to a low density, water-soluble coring and tooling material used for the fabrication of composite parts. One aspect of the present invention relates to a lightweight, strong composite coring material that can be easily shaped and removed from cured composite parts. Another aspect of the present invention relates to a lightweight, strong composite tooling material that is easily tailored to provide a specific coefficient of thermal expansion and thermal conductivity, thus providing a tooling material that can be matched to the composite structure and material being fabricated.

Abstract: A method is provided for the continuous production of treated waters using a staged, tapered array membrane plant by a process of process-logic-controlled (PLC) stage or stage increment isolation and removal from service, washing and return-to-service concurrent with the continued operation of all other stages and/or stage increments of the plant. Specifically, there are plant mounted input/output sensors that supply the PLC with the data required to identify the location and degree of “fouling” of the individual stages or stage increments of a tapered array membrane water treatment plant, where fouling is defined as a loss of water flow through a membrane surface at a given pressure when compared to a water flow standard for the surface.

Abstract: A method for separating gold and/or silver from copper or other contaminant metals is provided in which a suitable filter membrane (64), particularly a nanofilter, is used to form a retentate (134) containing most of the multivalent metal cyanide complexes and a permeate (135) containing most of the precious metal cyanide complexes. The process is particularly applicable to the recovery of gold and/or silver from ores containing these metals and one or more contaminant metals. The precious metal can thereafter be recovered from the permeate (135) and the metal in the multivalent metal cyanide complex from the retentate (134).

Abstract: The present invention generally relates compositions and methods for the preparation of three-dimensional bodies e.g., green bodies, ceramic-loaded green bodies, and polymer matrix composites by the controlled, sequential deposition of layers of material upon one another The method for preparing a green body comprises depositing a liquid composition having a viscosity of at least about 10 poise and comprising thermally-polymerizable components onto a base in a predetermined pattern to form a layer of the liquid composition on the base. Subsequently, at least one further layer of the liquid composition is deposited on a previously-formed layer in a predetermined pattern to form a multi-layered intermediate and, then, the multi-layered intermediate is heated to cause the thermally-polymerizable components to polymerize, providing the three-dimensional green body. Another method of the present invention provides a method for reinforcing a green body with fibers.

Abstract: The present invention generally relates compositions and methods for the preparation of three-dimensional bodies, e.g., green bodies, ceramic-loaded green bodies, and polymer matrix composites, by the controlled, sequential deposition of layers of material upon one another. The method for preparing a green body comprises depositing a liquid composition having a viscosity of at least about 10 poise and comprising thermally-polymerizable components onto a base in a predetermined pattern to form a layer of the liquid composition on the base. Subsequently, at least one further layer of the liquid composition is deposited on a previously-formed layer in a predetermined pattern to form a multi-layered intermediate and, then, the multi-layered intermediate is heated to cause the thermally-polymerizable components to polymerize, providing the three-dimensional green body. Another method of the present invention provides a method for reinforcing a green body with fibers.

Abstract: In situ liners are impermeable compound backfilled underground rock channels which are artificially cut and laterally and vertically extensive. The backfilled channel cuts may be joined to form six-sided enclosures, five-sided basins, four-sided conduits, and three-sided (or less) diversion surfaces. The channel are backfilled by bulk materials (e.g. sand, untreated or pre-or post-placement treated), or the bulk material can be layered between spray-on liner materials on the channel hanging wall and floorwall. This in situ liner allows containment and control of solutions, liquids, gases, or solids, which may be permanently or temporarily stored, processed, or diverted.

Abstract: A candle holder secured upstanding from a cylindrical base housing a turntable which carries a record disc having plural radially spaced sound tracks of the prayer of Grace in different languages or religions. Plural radially inwardly directed elevationallly pivoted arms of different lengths are angularly spaced within the base, each carrying a needle over a different sound track and an angularly moveable radially directed bar bears on a selected one of the arms for engagement of a selected sound track.