Abstract: Disclosed herein are lead free glass compositions having, in some embodiments, SiO2 from 25 wt % to 60 wt %, Al2O3 from 0 wt % to 20 wt %, B2O3 from 0 wt % to 35 wt %, ZrO2 from 0 wt % to 5 wt %, Li2O from 5 wt % to 17 wt %, Na2O from 3 wt % to 10 wt %, K2O from 1 wt % to 10 wt %, R2O from 0 wt % to 20 wt %, wherein R2O is an alkaline earth oxide, ZnO from 0 wt % to 15 wt %, and 0 wt % lead.

Abstract: According to at least one embodiment a glass comprises: a refractive index N of greater than 1.65 at a wavelength ?, where ?=587.6 nm; a glass density of not more than 4.2 g/cm3; Abbe number Vd greater than 30; the glass comprising greater than 0.03 wt % of rare earth oxide with an atomic number of 58 or higher.

Abstract: A method for producing a shaped glass article may include heating at least a portion of a mold-facing surface of the glass article to a forming temperature, shaping the glass article in a mold, and removing the multilayer coating from the glass article. The glass article may be coated with a multi-layer removable coating including an inner layer in contact with the glass article and an outer layer disposed over the inner layer. The mold may be in direct contact with the outer layer during shaping. The inner layer may include a first glass having a softening point of at least about 50° C. less than a softening point of the glass article. The outer layer may include a second glass having a softening point of at least about 50° C. greater than the softening point of the glass article.

Abstract: A UV-blocking glass material having precipitated cuprous halide crystals and including by weight percent, on an oxide basis: from 30 wt % to 65 wt % SiO2; from 12 wt % to 25 wt % B2O3; from 3 wt % to 10 wt % Al2O3; from 0 wt % to 7 wt % Na2O; from 0 wt % to 10 wt % K2O; from 0 wt % to 5 wt % Li2O; from 0.5 wt % to 10 wt % Ho2O3; from 0.25 wt % to 1.50 wt % CuO; and from 0.5 wt % to 5.0 wt % halogens.

Abstract: UV- and IR-absorbing materials with brown tint for sunglasses are described. The sunglass materials are prepared from a base glass through a post-fabrication process that includes ion exchange with silver. The tint of the sunglass material can be adjusted by controlling the level of ion exchange of the base glass with silver by varying the conditions of ion exchange. A wide range of tint is possible, including multiple shades of brown tint. In a typical process, a base glass having strong absorption in the UV and IR is fabricated and the resulting glass is subjected to a post-fabrication silver ion exchange process to control tint. The post-fabrication silver ion exchange process permits control of tint while maintaining strong UV and IR absorption and adequate transmittance in the visible.

Abstract: UV- and IR-absorbing materials with brown tint for sunglasses are described. The sunglass materials are prepared from a base glass through a post-fabrication process that includes ion exchange with silver. The tint of the sunglass material can be adjusted by controlling the level of ion exchange of the base glass with silver by varying the conditions of ion exchange. A wide range of tint is possible, including multiple shades of brown tint. In a typical process, a base glass having strong absorption in the UV and IR is fabricated and the resulting glass is subjected to a post-fabrication silver ion exchange process to control tint. The post-fabrication silver ion exchange process permits control of tint while maintaining strong UV and IR absorption and adequate transmittance in the visible.

Abstract: A UV-blocking glass material having precipitated cuprous halide crystals and including by weight percent, on an oxide basis: from 30 wt % to 65 wt % SiO2; from 12 wt % to 25 wt % B2O3; from 3 wt % to 10 wt % Al2O3; from 0 wt % to 7 wt % Na2O; from 0 wt % to 10 wt % K2O; from 0 wt % to 5 wt % Li2O; from 0.5 wt % to 10 wt % Ho2O3; from 0.25 wt % to 1.50 wt % CuO; and from 0.5 wt % to 5.0 wt % halogens.

Abstract: Disclosed herein are ultraviolet absorbing glasses. The glasses can be strengthened by a chemical tempering process and maintain good mechanical and optical properties while having a reduced thickness compared to conventional glasses. The ultraviolet absorbing glasses can include coloring agents and can be formed into ophthalmic lenses. Methods of making and using the ultraviolet absorbing glasses are also described.

Abstract: A method for producing a shaped glass article may include heating at least a portion of a mold-facing surface of the glass article to a forming temperature, shaping the glass article in a mold, and removing the multilayer coating from the glass article. The glass article may be coated with a multi-layer removable coating including an inner layer in contact with the glass article and an outer layer disposed over the inner layer. The mold may be in direct contact with the outer layer during shaping. The inner layer may include a first glass having a softening point of at least about 50° C. less than a softening point of the glass article. The outer layer may include a second glass having a softening point of at least about 50° C. greater than the softening point of the glass article.

Abstract: According to at least one embodiment a glass comprises: a refractive index N of greater than 1.65 at a wavelength ?, where ?=587.6 nm; a glass density of not more than 4.2 g/cm3; Abbe number Vd greater than 30; the glass comprising greater than 0.03 wt % of rare earth oxide with an atomic number of 58 or higher.

Abstract: UV- and IR-absorbing materials with brown tint for sunglasses are described. The sunglass materials are prepared from a base glass through a post-fabrication process that includes ion exchange with silver. The tint of the sunglass material can be adjusted by controlling the level of ion exchange of the base glass with silver by varying the conditions of ion exchange. A wide range of tint is possible, including multiple shades of brown tint. In a typical process, a base glass having strong absorption in the UV and IR is fabricated and the resulting glass is subjected to a post-fabrication silver ion exchange process to control tint. The post-fabrication silver ion exchange process permits control of tint while maintaining strong UV and IR absorption and adequate transmittance in the visible.

Abstract: Disclosed herein are ultraviolet absorbing glasses. The glasses can be strengthened by a chemical tempering process and maintain good mechanical and optical properties while having a reduced thickness compared to conventional glasses. The ultraviolet absorbing glasses can include coloring agents and can be formed into ophthalmic lenses. Methods of making and using the ultraviolet absorbing glasses are also described.

Abstract: Described herein are photochromic glasses that are at least substantially free of rare earth elements. Methods of making and using the photochromic glasses are also described.

Abstract: Described herein are photochromic glasses that are at least substantially free of rare earth elements. Methods of making and using the photochromic glasses are also described.

Abstract: The present invention describes a high porosity (% P?45%), refractory, ceramic article comprising a cordierite ceramic phase and at least about 0.1 wt. % of a rare earth oxide, such as yttrium oxide or lanthanum oxide. When compared to typical high-porosity cordierite articles, the articles of the present invention may exhibit relatively high strength, relatively low microcracking, relatively high strain tolerance (MOR/E), and/or relatively high thermal shock resistance (TSP).

Abstract: The present invention describes a high porosity (% P?45%), refractory, ceramic article comprising a cordierite ceramic phase and at least about 0.1 wt.% of a rare earth oxide, such as yttrium oxide or lanthanum oxide. When compared to typical high-porosity cordierite articles, the articles of the present invention may exhibit relatively high strength, relatively low microcracking, relatively high strain tolerance (MOR/E), and/or relatively high thermal shock resistance (TSP).

Abstract: Disclosed are CuX-containing, Nd2O3-containing, UV-absorbing and contrast-enhancing glasses and article comprising the same. The glass has improved UV-absorption and color enhancing capabilities compared to glasses described in the prior art. The glass can be used in sunglass lenses and light filters of information displays.

Abstract: The disclosure provides a composition including a porous cordierite honeycomb body as defined herein having excellent strength, high thermal shock resistance, and reduced microcrack properties. The disclosure also provides methods of making and using the composition, for example, as a catalyst carrier.

Abstract: Disclosed are CuX-containing, Nd2O3-containing, UV-absorbing and contrast-enhancing glasses and article comprising the same. The glass has improved UV-absorption and color enhancing capabilities compared to glasses described in the prior art. The glass can be used in sunglass lenses and light filters of information displays.

Abstract: The disclosure provides a composition including a porous cordierite honeycomb body as defined herein having excellent strength, high thermal shock resistance, and reduced microcrack properties. The disclosure also provides methods of making and using the composition, for example, as a catalyst carrier.