A coated glass or glass ceramic substrate includes a substrate with a surface area and a coating on that surface area. The coating includes a glass matrix and IR-reflecting pigments. The IR-reflecting pigments have a TSR value of at least 20%, as determined according to ASTM G 173. The coating, at a wavelength of 1500 nm, exhibits a remission of at least 35%, as measured according to ISO 13468.

A coated glass or glass ceramic substrate includes a substrate with a surface area and a coating on that surface area. The coating includes a glass matrix and IR-reflecting pigments. The IR-reflecting pigments have a TSR value of at least 20%, as determined according to ASTM G 173. The coating, at a wavelength of 1500 nm, exhibits a remission of at least 35%, as measured according to ISO 13468.

To provide a cover glass for light emitting diode package, which is capable of preventing deterioration in transmittance characteristics during use for a long period of time, and a light emitting device. The cover glass for light emitting diode package has a basic composition comprising, by mass % as calculated as oxides, from 55 to 80% of SiO.sub.2, from 0.5 to 15% of Al.sub.2O.sub.3, from 5 to 25% of B.sub.2O.sub.3, from 0 to 7% of Li.sub.2O, from 0 to 15% of Na.sub.2O, from 0 to 10% of K.sub.2O (provided Li.sub.2O+Na.sub.2O+K.sub.2O=from 2 to 20%), from 0 to 0.1% of SnO.sub.2 and from 0.001 to 0.1% of Fe.sub.2O.sub.3, it does not substantially contain As.sub.2O.sub.3, Sb.sub.2O.sub.3 and PbO, and it has an average thermal expansion coefficient of from 45 to 70×10.sup.−7/° C. in a temperature range of from 0 to 300° C.

To provide a cover glass for light emitting diode package, which is capable of preventing deterioration in transmittance characteristics during use for a long period of time, and a light emitting device. The cover glass for light emitting diode package has a basic composition comprising, by mass % as calculated as oxides, from 55 to 80% of SiO.sub.2, from 0.5 to 15% of Al.sub.2O.sub.3, from 5 to 25% of B.sub.2O.sub.3, from 0 to 7% of Li.sub.2O, from 0 to 15% of Na.sub.2O, from 0 to 10% of K.sub.2O (provided Li.sub.2O+Na.sub.2O+K.sub.2O=from 2 to 20%), from 0 to 0.1% of SnO.sub.2 and from 0.001 to 0.1% of Fe.sub.2O.sub.3, it does not substantially contain As.sub.2O.sub.3, Sb.sub.2O.sub.3 and PbO, and it has an average thermal expansion coefficient of from 45 to 70×10.sup.−7/° C. in a temperature range of from 0 to 300° C.

A laminate sheet article including: a core including an electrical semi-conductor or an electrical conductor; and a continuous glass clad layer on at least four of six sides the core of the sheet article. Also disclosed is an apparatus for making a sheet laminate article as defined herein. Also disclosed is a method of making and using the article.

A laminate sheet article including: a core including an electrical semi-conductor or an electrical conductor; and a continuous glass clad layer on at least four of six sides the core of the sheet article. Also disclosed is an apparatus for making a sheet laminate article as defined herein. Also disclosed is a method of making and using the article.

A glass article including at least about 40 mol % SiO.sub.2 and, optionally, a colorant imparting a preselected color is disclosed. In general, the glass includes, in mol %, from about 40-70 SiO.sub.2, 0-25 Al.sub.2O.sub.3, 0-10 B.sub.2O.sub.3; 5-35 Na.sub.2O, 0-2.5 K.sub.2O, 0-8.5 MgO, 0-2 ZnO, 0-10% P.sub.2O.sub.5 and 0-1.5 CaO. As a result of ion exchange, the glass includes a compressive stress (σ.sub.s) at at least one surface and, optionally, a color. In one method, communicating a colored glass with an ion exchange bath imparts σ.sub.s while in another; communicating imparts σ.sub.s and a preselected color. In the former, a colorant is part of the glass batch while in the latter; it is part of the bath. In each, the colorant includes one or more metal containing dopants formulated to impart to a preselected color. Examples of one or more metal containing dopants include one or more transition and/or rare earth metals.

A glass article including at least about 40 mol % SiO.sub.2 and, optionally, a colorant imparting a preselected color is disclosed. In general, the glass includes, in mol %, from about 40-70 SiO.sub.2, 0-25 Al.sub.2O.sub.3, 0-10 B.sub.2O.sub.3; 5-35 Na.sub.2O, 0-2.5 K.sub.2O, 0-8.5 MgO, 0-2 ZnO, 0-10% P.sub.2O.sub.5 and 0-1.5 CaO. As a result of ion exchange, the glass includes a compressive stress (σ.sub.s) at at least one surface and, optionally, a color. In one method, communicating a colored glass with an ion exchange bath imparts σ.sub.s while in another; communicating imparts σ.sub.s and a preselected color. In the former, a colorant is part of the glass batch while in the latter; it is part of the bath. In each, the colorant includes one or more metal containing dopants formulated to impart to a preselected color. Examples of one or more metal containing dopants include one or more transition and/or rare earth metals.

A borosilicate glass for a pharmaceutical container having high appearance quality, particularly a small number of air lines, and a glass tube for a pharmaceutical container are provided. The borosilicate glass for a pharmaceutical container contains, in mass %, from 70.0 to 78.0% of SiO.sub.2, from 5.0 to 8.0% of Al.sub.2O.sub.3, from 5.0 to 12.0% of B.sub.2O.sub.3, from 0 to 4.0% of CaO, from 0 to 4.0% of BaO, from 4.0 to 8.0% of Na.sub.2O, from 0 to 5.0% of K.sub.2O and from 0.001 to 1.0% of SnO.sub.2.

A strengthened glass sheet product as well as process and an apparatus for producing the product. The process comprises cooling the glass sheet by non-contact thermal conduction for sufficiently long to fix a surface compression and central tension of the sheet. The process results in thermally strengthened glass sheets having improved breakage properties.