Abstract:
An ultra-thin polarizing glass article (8) having two polarizing glass layer s (4) separated by a non-polarizing central region (6). The polarizing glass layers contain stretched or elongated metal particles and the non-polarizing central region contains elongated or stretched metal halide particles. The polarizing article having a thickness less than 200 micrometers.
Abstract:
This article is a glass substrate having a coating thereon. The coating strongly absorbs certain ultraviolet radiation. The preferred coating absorb s ultraviolet radiation at wavelengths ranging from 230 up to at least 280 nm while providing high transmission throughout a region of visible wavelengths . The preferred coating consists essentially of three layers, wherein the firs t layer adjacent the substrate is a mixture of SiO2 and TiO2; the second layer is TiO2 and the third layer farthest from the substrate is SiO2.
Abstract:
A metal article, in particular a component for a thermal cracking furnace, and a method of protecting the metal from exposure to carbon, the article having a protective coating that has a glass-ceramic surface and an interior having a CTE between that of the glass-ceramic and the metal.
Abstract:
A glazing device, and a method for using such device to apply a surface glaze to a dental construct, are disclosed. The device comprises glazing material associated with a shrinkable, hollow carrier. The method comprises associating glazing material with a hollow carrier composed of a shrinkable and removable material, assembling the construct and carrier with the construct positioned within the carrier, shrinking the carrier onto the construct, removing the carrier, and maturing the material to a glaze. The device and method find particular application in applying coloration, either uniformly or in a pattern, to a dental construct.
Abstract:
A method of applying a surface glaze to a dental construct, is disclosed. The method comprises associating glazing material with a carrier composed of a highly flexible and removable material, assembling the construct and carrier with the construct positioned within the carrier, forcing the carrier onto the construct by differential fluid pressure, removing the carrier, and maturing the glazing material to a glaze. The method finds particular application in applying coloration, either uniformly or in a pattern, to a dental construct.
Abstract:
A component of a thermal processing apparatus for a fluid stream of hydrocarbons, a precursor glass for a glass-ceramic coating on such component, and a method of inhibiting deposition of a material, such as carbon, on a surface of the component.
Abstract:
This invention is concerned with preparing fixed partial dentures consisting of abutment crowns and pontics connected through male/female attachments and being sealed together by means of a joining medium. In the most preferred embodiment, the parts of the dentures are formed from machinable glass-ceramic materials and the joining medium is curable through exposure to visible light radiation.
Abstract:
An ultra-thin polarizing glass article (8) having two polarizing glass layers (4) separated by a non-polarizing central region (6). The polarizing glass layers contain stretched or elongated metal particles and the non-polarizing central region contains elongated or stretched metal halide particles. The polarizing article having a thickness less than 200 micrometers.
Abstract:
An inorganic visible light reflective polarizer formed by applying layers of dielectric material on one or more surfaces of a transparent substrate. The resulting polarizer exhibits polarizing performance over the entire visible spectrum. A miniaturized polarizer is formed by assembling and binding together several single-layer-coated substrates.