Abstract: A cover glass is provided that includes a silica based glass ceramic with a thickness between 0.4 mm and 0.85 mm. The glass ceramic has a transmittance of more than 80% from 380 nm to 780 nm and a stress attribute selected from: an overall compressive stress (CS) of at least 250 MPa and at most 1500 MPa, a compressive stress at a depth of 30 ?m (CS30) from one of the two faces of at least 160 MPa and at most 525 MPa, a depth of the compression layer (DoCL) of at least 0.2 times the thickness and less than 0.5 times the thickness, and any combinations thereof. The glass ceramic has at least one silica based crystal phase having in a near-surface layer a unit cell volume of at least 1% by volume larger than that of a core where the crystal phase has minimum stresses.

Abstract: A chemically temperable or chemically tempered glass includes SiO2, Al2O3, Li2O and B2O3 as constituents. The following applies for the constituents (in mol % based on oxide): 0.8<Li2O/(Li2O+K2O+Na2O)?1 and 0.1<B2O3?8.5.

Abstract: The present invention relates to a laminated glass with improved residual load-bearing capacity. The laminated glass comprises at least two sheets of glass or glass-ceramic joined to one another through an interlayer. The laminated glass may be used in particular as overhead glazing. The laminated glass is particularly suitable for use as safety glass and/or fire-resistant glass.

Abstract: A chemically tempered glass or glass-ceramic article in pane form for use as a cover pane includes a glass or glass-ceramic having a composition comprising the components SiO2, Al2O3, Li2O and Na2O, having a thickness d of 300 ?m to 1000 ?m, a compressive strength at a distance of 30 ?m from a surface of a main face CS30 of at least 60 MPa, and a compressive strength at a distance of 50 ?m from the surface of a main face CS50. The compressive strengths CS30 and CS50 of the same main face are in the following ratio V to one another: V = CS 30 CS 50 ? - 0.0006 * d + 2 , where d is the thickness of the article in ?m.

Abstract: A composite glass includes two glass panes with a glass pane having coated regions and including a glass having SiO2 and B2O3 and a first side and a second side; a coating applied in at least one region of the second side, the coating taking the form of an enamel coating having at least one pigment, a vitreous constituent, and pores; and a polymeric layer disposed between the glass panes, a polymer in the polymeric layer being in uncolored form, and at least a portion of the polymeric layer in the at least one region of the coating at least partly fills the pores of the coating so a color locus of the composite glass in the at least one region in which the coating is applied given in the CIEL*a*b* system where L* is at most and a* and b* are each in a range between +5 and ?5.

Abstract: A glass sheet includes a glass including SiO2 and B2O3 and at least one coating applied in at least one region of at least one side of the glass sheet. The at least one coating includes at least one binder including SiO2 and at least one pigment. The at least one coating includes less than 500 ppm of Bi2O3 and/or less than 500 ppm of ZnO and/or less than 500 ppm of B2O3 and/or less than 500 ppm of an alkali metal oxide, based in each case on weight.

Abstract: A chemically strengthened glass sheet includes SiO2, Li2O and Al2O3 as glass components, has a thickness between at least 0.3 mm and at most 3 mm, has a stress profile showing a local maximum of compressive stress at a depth within the glass article and, for a thickness of 0.7 mm, exhibits an integral of compressive stress of at least 3,500 MPa*?m and a DoCL of at least 160 ?m. The local maximum is at a depth between at least 25 ?m and at most 60 ?m. A compressive stress of the local maximum is at least 60 MPa and at most 150 MPa. The glass sheet further includes at least 0.4 wt.-% B2O3 and/or the glass sheet includes a) at least 40 wt.-% SiO2 and b) at most 24 wt.-% Al2O3.

Abstract: The invention relates to a glass sheet, in particular a glass sheet obtained by separation from a preferably floated glass ribbon formed by hot forming, in particular comprising a borosilicate glass, with a length of at least 1.15 m and a width of at least 0.85 m, with a thickness d of at least 0.5 mm, preferably at least 0.7 mm, and at most 7 mm, and uses thereof.

Abstract: A glass element includes a glass surface including a surface structuring with a structured region of the glass surface that, owing to glass removal, has a higher roughness than an adjoining unstructured region of the glass surface, the structured region having a mechanical stress profile which can be measured by stress birefringence. The structured region has a compressive stress on the glass surface that is higher in absolute terms than a stress in the adjoining unstructured region. At least one of the following is satisfied: the compressive stress becomes smaller in absolute terms with increasing depth and transitions into a tensile stress, a maximum tensile stress being smaller in absolute terms than the compressive stress on the glass surface; or the compressive stress has a value of less than 5 MPa in absolute terms on the glass surface and becomes smaller in absolute terms with increasing depth.

Abstract: A glass pane, especially to a glass pane obtained by singularization from a preferably floated glass strip formed by hot forming, is provided. The glass pane is a borosilicate glass with a top side, a bottom side, and a thickness the top and bottom surfaces of at least 1.75 mm and at most 7 mm. The glass pane has a magnitude of the sum total of refractions from the top side and the bottom side within a square area Mb of 500 mm by 500 mm for light incident perpendicularly on the glass pane for a 99.9% quantile of 0 mdpt to less than 1.7 mdpt in at least one direction parallel to the surface of the glass pane.

Abstract: A cover glass is provided that includes a silica based glass ceramic with a thickness between 0.4 mm and 0.85 mm. The glass ceramic has a transmittance of more than 80% from 380 nm to 780 nm and a stress attribute selected from: an overall compressive stress (CS) of at least 250 MPa and at most 1500 MPa, a compressive stress at a depth of 30 ?m (CS30) from one of the two faces of at least 160 MPa and at most 525 MPa, a depth of the compression layer (DoCL) of at least 0.2 times the thickness and less than 0.5 times the thickness, and any combinations thereof. The glass ceramic has at least one silica based crystal phase having in a near-surface layer a unit cell volume of at least 1% by volume larger than that of a core where the crystal phase has minimum stresses.

Abstract: A cover glass made of a glass ceramic that is silica based and has a main crystal phase of high quartz solid solution or keatite solid solution is provided. The cover glass has a stress profile with at least one inflection point at a depth of the cover glass of more than 10 ?m, a thickness from 0.1 mm to 2 mm, and a chemical tempering structure with a surface compressive stress of at least 250 MPa and at most 1500 MPa. A process for producing the cover glass is provided that includes producing a silica based green glass, hot shaping the silica based green glass, thermally treating the silica based green glass with a nucleation step and a ceramization step, and performing an ion exchange at an exchange bath temperature for a duration of time in an exchange bath.

Abstract: A chemically toughenable or toughened sheet-like glass article is provided. The article has a glass with a composition comprising Al2O3, SiO2, Li2O, and Na2O, wherein (Al2O3)?(Li2O+Na2O), in mol %, is less than 0; a thickness between 0.3 mm and 4 mm; a light transmittance of at least 0.001% to at most 60% at 450 nm, of at least 0.001% to at most 30% at 540 nm, and of at least 0.001% to at most 30% at 630 nm; and an IR transmittance of at least 10% to not more than 99% at any wavelength in a wavelength range from 900 nm to 1100 nm. The light and IR transmittances are determined for a thickness of the article of 1 mm.

Abstract: Coated glass panes having a glass pane and a coating in at least one region of at least one side of the glass pane. The glass pane is composed of glass with SiO2 and B2O3. The coating includes first coating applied in at least one region of the at least one side. The first coating has a binder with SiO2 and a pigment. The glass pane, in the at least one region, has a flexural strength between at least 5 and at most 170 MPa.